Filed Pursuant to Rule 424(b)(3)
Registration No. 333-226329

Pinnacle Foods Inc.

399 Jefferson Road

Parsippany, New Jersey 07054

MERGER PROPOSED—YOUR VOTE IS VERY IMPORTANT

September 17, 2018

Dear Fellow Stockholders:

On June 26, 2018, Pinnacle Foods Inc., a Delaware corporation (“Pinnacle”), entered into an Agreement and Plan of Merger (as it may be amended from time to time, the “merger agreement”), with Conagra Brands, Inc., a Delaware corporation (“Conagra”), and Patriot Merger Sub Inc., a Delaware corporation and a direct wholly owned subsidiary of Conagra (“Merger Sub”).

The merger agreement provides for Merger Sub to be merged with and into Pinnacle (the “merger”), after which Pinnacle will survive the merger as a wholly owned subsidiary of Conagra. If the merger is completed, for each share of Pinnacle common stock you own, you will receive (unless you seek appraisal and comply with all related statutory requirements of the General Corporation Law of the State of Delaware (the “DGCL”)) $43.11 in cash without interest (the “cash consideration”), and 0.6494 shares of Conagra common stock (the “stock consideration”, and together with the cash consideration, the “merger consideration”). Based on the volume weighted average price per share of Conagra common stock for the five consecutive trading days ending June 21, 2018 on the New York Stock Exchange (“NYSE”), the merger consideration represented approximately $68.00 per share of Pinnacle common stock. This price represented a premium of approximately 23.2% to the closing price of Pinnacle common stock of $55.20 on NYSE on April 19, 2018 (which was the last trading day prior to the announcement that Jana Partners LLC had made a substantial investment in Pinnacle, leading to speculation that Pinnacle would consider a potential sale transaction) and a premium of approximately 0.2% to the closing price of Pinnacle common stock of $67.86 on NYSE on June 26, 2018, the last trading day before the public announcement of the merger agreement. Based on the closing price of $38.25 per share of Conagra common stock on NYSE on September 14, 2018, the last practicable date before the date of this proxy statement/prospectus, the merger consideration represented approximately $67.95 per share of Pinnacle common stock. Changes in the market price of shares of Conagra common stock prior to the closing of the merger will affect the value of the stock consideration. Accordingly, we urge you to obtain current market quotations for shares of Conagra common stock before deciding whether to vote “FOR” adoption of the merger agreement. Shares of Pinnacle common stock are currently traded on NYSE under the symbol “PF”, and shares of Conagra common stock are currently traded on NYSE under the symbol “CAG”.

In connection with the merger, Pinnacle will hold a special meeting of its stockholders (the “special meeting”) to adopt the merger agreement and to consider and vote on certain other matters. The affirmative vote of the holders of a majority of all outstanding shares of Pinnacle common stock entitled to vote on the merger proposal is required to adopt the merger agreement. Stockholders of record as of September 4, 2018 (the “record date”) are entitled to vote to adopt the merger agreement and for the other proposals presented at the special meeting.

YOUR VOTE IS VERY IMPORTANT

Information about the special meeting, the merger and the other business to be considered by the Pinnacle stockholders at the special meeting is contained in the accompanying proxy statement/prospectus, which we urge you to read in its entirety. In particular, see the section titled “Risk Factors” beginning on page 40 of the accompanying proxy statement/prospectus.

The Pinnacle board of directors (the “Pinnacle board”) has unanimously approved the merger agreement and declared in the best interest of the Pinnacle stockholders the acquisition of Pinnacle by Conagra by means of the merger and directed that the merger agreement be submitted to the Pinnacle stockholders for their adoption. The Pinnacle board recommends that the Pinnacle stockholders vote (1) “FOR” the proposal to adopt the merger agreement; (2) “FOR” the proposal to approve, on a nonbinding, advisory basis, the compensation that may be paid or may become payable to Pinnacle’s named executive officers in connection with, or following, the closing of the merger (the “merger-related compensation”); and (3) “FOR” any adjournment of the special meeting, if necessary or appropriate, to solicit additional proxies in favor of the proposal to adopt the merger agreement.

If you have any questions concerning the merger, the special meeting or the accompanying proxy statement/prospectus, would like additional copies of the accompanying proxy statement/prospectus or need help voting your shares of Pinnacle common stock, please contact Pinnacle’s proxy solicitor:

1407 Broadway, 27th Floor

New York, NY 10018

pfproxy@mackenziepartners.com

(212) 929-5500 or toll-free (800) 322-2885

Sincerely,

Roger K. Deromedi

Independent Chairman of the Board of Directors and Lead Director

Neither the U.S. Securities and Exchange Commission nor any state securities commission has approved or disapproved of the merger, the transactions contemplated by the merger agreement or the securities to be issued under the accompanying proxy statement/prospectus or determined if the accompanying proxy statement/prospectus is accurate or complete. Any representation to the contrary is a criminal offense.

The accompanying proxy statement/prospectus is dated September 17 and is first being mailed to the Pinnacle stockholders on or about September 18, 2018.

Notice of Special Meeting of Stockholders of Pinnacle

Pinnacle Foods Inc.

399 Jefferson Road

Parsippany, New Jersey 07054

September 17, 2018

NOTICE OF SPECIAL MEETING OF STOCKHOLDERS

Dear Fellow Stockholders:

Notice is hereby given that a special meeting of stockholders (the “special meeting”) of Pinnacle Foods Inc., a Delaware corporation (“Pinnacle”), will be held on October 23, 2018 at 9:00 a.m. (Eastern Daylight Time). Only Pinnacle stockholders of record at the close of business on September 4, 2018, the record date, are entitled to receive this notice and to vote at the special meeting or any adjournment or postponement of that meeting. The special meeting has been called for the following purposes:

1. Adoption of the Merger Agreement. To consider and vote upon a proposal to adopt the Agreement and Plan of Merger, dated as of June 26, 2018 (as it may be amended from time to time, the “merger agreement”), by and among Pinnacle, Conagra Brands, Inc., a Delaware corporation (“Conagra”), and Patriot Merger Sub Inc., a Delaware corporation and a direct wholly owned subsidiary of Conagra (“Merger Sub”), pursuant to which, among other things, Merger Sub will be merged with and into Pinnacle, with Pinnacle surviving the merger as a subsidiary of Conagra (the “merger”);

2. Advisory Vote Regarding Merger-Related Compensation. To consider and vote on a nonbinding, advisory proposal to approve the compensation that may be paid or may become payable to Pinnacle’s named executive officers in connection with, or following, the closing of the merger (the nonbinding, advisory proposal, which we refer to as the “nonbinding compensation proposal”, relates only to contractual obligations of Pinnacle in existence prior to the closing of the merger that may result in a payment to Pinnacle’s named executive officers in connection with, or following, the closing of the merger and does not relate to any new compensation or other arrangements between Pinnacle’s named executive officers and Conagra or, following the merger, the surviving corporation and its subsidiaries); and

3. Adjournment or Postponement of the Special Meeting. To consider and vote upon any adjournment of the special meeting, if necessary or appropriate, to solicit additional proxies in favor of the proposal to adopt the merger agreement (the “adjournment”).

The Pinnacle board of directors (the “Pinnacle board”) has unanimously approved the merger agreement and declared in the best interest of the Pinnacle stockholders the acquisition of Pinnacle by Conagra by means of the merger and directed that the merger agreement be submitted to the Pinnacle stockholders for their adoption. The merger agreement will be adopted upon receiving the affirmative vote of the holders of a majority of all outstanding shares of Pinnacle common stock entitled to vote thereon at the special meeting.

Whether or not you plan to attend the special meeting, it is important that you submit your proxy with voting instructions as soon as possible. To ensure your shares are voted, you may vote your shares over the Internet, by telephone or by requesting a paper proxy card to complete, sign and return by mail. Internet and telephone voting procedures are described in the section of the proxy statement/prospectus under the heading “Special Meeting of Pinnacle Stockholders—Voting of Proxies” and on the proxy card.

The Pinnacle board unanimously recommends that the Pinnacle stockholders vote “FOR” the proposal to adopt the merger agreement; “FOR” the nonbinding compensation proposal; and “FOR” any adjournment.

By Order of the Board of Directors,

M. Kelley Maggs

Executive Vice President, Secretary and General Counsel

ADDITIONAL INFORMATION

The accompanying document is the proxy statement of Pinnacle for its special meeting of stockholders and the prospectus of Conagra relating to the offer and sale of its common stock to be issued to Pinnacle stockholders in the merger. The accompanying proxy statement/prospectus incorporates important business and financial information about Conagra and Pinnacle from documents that are not included in or delivered with the accompanying proxy statement/prospectus. This information is available to you without charge upon your written or oral request. You can obtain documents incorporated by reference into the accompanying proxy statement/prospectus by requesting them in writing, via email or by telephone, from Conagra or Pinnacle at the following addresses and telephone numbers:

In addition, if you have questions about the merger or the accompanying proxy statement/prospectus, would like additional copies of the accompanying proxy statement/prospectus or need to obtain a proxy card or other information related to the proxy solicitation, please contact MacKenzie Partners, Inc., Pinnacle’s proxy solicitor, toll-free at (800) 322-2885 or (212) 929-5500 or by email: pfproxy@mackenziepartners.com. You will not be charged for any of these documents that you request.

If you would like to request any documents, please do so at least one week before the date of the special meeting to give us time to get them to you before the special meeting.

See the section titled “Where You Can Find More Information” beginning on page 160 of the accompanying proxy statement/prospectus for further information.

ABOUT THIS PROXY STATEMENT/PROSPECTUS

This proxy statement/prospectus, which forms part of a registration statement on Form S-4 filed with the Securities and Exchange Commission (the “SEC”) by Conagra, constitutes a prospectus of Conagra under Section 5 of the Securities Act of 1933, as amended (the “Securities Act”), with respect to shares of Conagra common stock to be issued to Pinnacle stockholders under the merger agreement. This proxy statement/prospectus also constitutes a proxy statement under Section 14(a) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). It also constitutes a notice of meeting with respect to the special meeting of Pinnacle stockholders, at which meeting Pinnacle stockholders will be asked to vote upon a proposal to adopt the merger agreement, among other things.

You should rely only on the information contained in or incorporated by reference into this proxy statement/prospectus. No one has been authorized to provide you with information that is different from that contained in, or incorporated by reference into, this proxy statement/prospectus. This proxy statement/prospectus is dated as of September 17, 2018. You should not assume that the information contained in this proxy statement/prospectus is accurate as of any date other than that date. You should not assume that the information incorporated by reference into this proxy statement/prospectus is accurate as of any date other than the date of such incorporated document. Neither the mailing of this proxy statement/prospectus to Pinnacle stockholders nor the issuance by Conagra of its shares of common stock in connection with the merger will create any implication to the contrary.

This proxy statement/prospectus is neither an offer to sell, nor a solicitation of an offer to buy any securities, the solicitation of any vote or approval in any jurisdiction pursuant to or in connection with the merger or otherwise, nor shall there be any sale, issuance or transfer of securities in any jurisdiction in contravention of applicable law. Information contained in this proxy statement/prospectus regarding Pinnacle has been provided by Pinnacle and information contained in this proxy statement/prospectus regarding Conagra has been provided by Conagra.

TABLE OF CONTENTS

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QUESTIONS AND ANSWERS

The following questions and answers are intended to address briefly some commonly asked questions regarding the merger, the merger agreement, certain voting procedures and other matters with respect to the special meeting. These questions and answers may not address all questions that may be important to Pinnacle stockholders. To better understand these matters, and for a more complete description of the terms of the merger agreement, the merger and the other transactions contemplated thereby, including certain risks relating to the merger and Conagra following the merger, and the other matters to be voted on and the proceedings to be conducted at the special meeting, you should carefully read this entire proxy statement/prospectus, including each of the attached annexes, as well as the documents that have been incorporated by reference into this proxy statement/prospectus. See the section titled “Where You Can Find More Information” contained in this proxy statement/prospectus.

Conagra will not issue any fractional shares of Conagra common stock in the merger and a Pinnacle stockholder who otherwise would have received a fraction of a share of Conagra common stock will receive a cash payment in lieu thereof, without interest, rounded down to the nearest whole cent, equal to the fraction of a share of Conagra common stock (after taking into account all shares of Conagra common stock held by such holder at the effective time of the merger and rounded to the nearest one-thousandth when expressed in

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decimal form to which such holder would otherwise be entitled) multiplied by the average of the closing prices per share of Conagra common stock on NYSE for the ten full trading days ending on the second business day immediately preceding the date on which the effective time of the merger occurs. See the section titled “The Merger Agreement—Merger Consideration” contained in this proxy statement/prospectus.

Pinnacle options

Pinnacle RSUs

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Pinnacle PSUs

Pinnacle PSAs

See the section titled “The Merger Agreement—Treatment of Pinnacle Equity Awards” contained in this proxy statement/prospectus.

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Changes in the market price of shares of Conagra common stock prior to the closing of the merger will affect the value of the stock consideration. Accordingly, we urge you to obtain the latest market quotations for shares of Conagra common stock prior to submitting your vote or attending the special meeting. Shares of Pinnacle common stock are currently traded on NYSE under the symbol “PF”, and shares of Conagra common stock are currently traded on NYSE under the symbol “CAG”.

See the section titled “The Merger Agreement Proposal—Recommendation of the Pinnacle Board and its Reasons for the Merger” contained in this proxy statement/prospectus.

In considering the recommendation of the Pinnacle board with respect to the merger agreement, you should be aware that some of Pinnacle’s directors and executive officers have interests in the merger that are different from, or in addition to, the interests of Pinnacle stockholders generally. See the section titled “The Merger Agreement Proposal —Interests of Pinnacle’s Directors and Executive Officers in the Merger” contained in this proxy statement/prospectus.

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Following the effective time of the merger, and in any event no more than 10 calendar days after the closing date, Pinnacle common stock will be delisted from NYSE and deregistered under the Exchange Act and, accordingly, Pinnacle will no longer be a public company or be required to file periodic or current reports with the SEC in respect of Pinnacle common stock.

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The proposal to adjourn the special meeting, if necessary or appropriate, to solicit additional proxies in favor of the proposal to adopt the merger agreement (the “adjournment proposal”) requires the affirmative vote of holders of a majority of those shares of Pinnacle common stock present in person or represented by proxy at the special meeting and entitled to vote thereon, regardless of whether a quorum is present. Unless the Pinnacle board fixes a new record date for the adjourned special meeting, the adjourned special meeting is more than 30 days after the date of the original special meeting, or law otherwise requires, no notice of the adjourned special meeting will be required so long as (i) the time and place to which the special meeting is adjourned, and the means of remote communications, if any, by which holders of Pinnacle common stock may be deemed to be present or represented by proxy and vote at such adjourned meeting are announced at the original special meeting and (ii) at the adjourned special meeting only such business is transacted as might have been transacted at the original special meeting. Abstentions will have the same effect as a vote “AGAINST” a proposal to adjourn the special meeting, while failures to vote and broker non-votes will have no effect on the outcome of the vote.

If you provide specific instructions with regard to certain items, your shares will be voted as you instruct on such items. If you sign your proxy card or voting instruction form without giving specific instructions, it will have the same effect as a vote “AGAINST” all of the proposals.

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Even if you plan to attend the special meeting in person, to ensure that your shares will be represented at the special meeting we encourage you to complete, sign, date and return the enclosed proxy card in the accompanying prepaid reply envelope or grant your proxy by telephone or electronically over the Internet. If you attend the special meeting and vote in person by ballot, your vote will revoke any proxy previously submitted by you with respect to the shares so voted in person.

If you hold your shares of Pinnacle common stock in “street name” through a broker, bank, trustee or other nominee, you should instruct your broker, bank, trustee or other nominee how to vote your shares in accordance with the voting instruction form that you will receive from your broker, bank, trustee or other nominee. Without your instructions, your broker or other agent cannot vote on any of the proposals. If you hold your shares in “street name”, you may not vote your shares in person at the special meeting unless you obtain a “legal proxy” from your broker, bank, trustee or other nominee.

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In certain circumstances, a U.S. Holder who also owns shares of Conagra common stock at the time of the merger may have tax consequences that differ materially from those described above as a result of the application of Section 304 of the Internal Revenue Code of 1986, as amended (the “Code”). As described further below under “Material U.S. Federal Income Tax Consequences—Potential Application of Section 304 of the Code”, such U.S. Holders may be required to include the entire amount of the cash consideration received as dividend income. Any such U.S. Holders should consult their own tax advisors regarding the application of Section 304 to the merger.

Except in certain specific circumstances described in “Material U.S. Federal Income Tax Consequences”, a Non-U.S. Holder (as defined below in the section titled “Material U.S. Federal Income Tax Consequences—General”) generally will not be subject to U.S. federal income or withholding tax on any gain recognized on the exchange of Pinnacle common stock for any shares of Conagra common stock and/or cash in the merger. However, as described further below under “Material U.S. Federal Income Tax Consequences—Potential Application of Section 304 of the Code”, as a result of the application of Section 304 of the Code, the entire amount of cash consideration paid to a Non-U.S. Holder may be treated as a dividend for U.S. federal income tax purposes if the Non-U.S. Holder also owns shares of Conagra common stock at the time of the merger. Because of the uncertainty regarding the application of Section 304 of the Code and the possibility of dividend treatment, withholding agents may withhold tax at a rate of 30% (or such lower rate as may be specified by an applicable income tax treaty) on the gross amount of any cash merger consideration paid to a Non-U.S. Holder, regardless of whether the Non-U.S. Holder also owns shares of Conagra common stock at the time of the merger. Non-U.S. Holders should consult their own tax advisors regarding their particular facts and circumstances, the procedures for claiming treaty benefits or otherwise establishing an exemption from U.S. withholding taxes with respect to any portion of the cash consideration payable to them pursuant to the merger, and any actions that may be taken to mitigate any potential adverse tax consequences.

Please refer to section titled “Material U.S. Federal Income Tax Consequences” contained in this proxy statement/prospectus for a description of the material U.S. federal income tax consequences of the merger. Determining the actual tax consequences of the merger to you may be complex and will depend on your specific situation. You should consult your tax advisor for a full understanding of the tax consequences of the merger to you.

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A control number, located on your proxy card, is designed to verify your identity and allow you to vote your shares of Pinnacle common stock, and to confirm that your voting instructions have been properly recorded when voting by telephone or electronically over the Internet. Please be aware that, although there is no charge for voting your shares, if you vote by telephone or electronically over the Internet, you may incur costs such as internet access and telephone charges for which you will be responsible.

Even if you plan to attend the special meeting in person, you are strongly encouraged to vote your shares of Pinnacle common stock by proxy. If you are a record holder or if you obtain a “legal proxy” to vote shares that you beneficially own, you may still vote your shares of Pinnacle common stock at the special meeting even if you have previously voted by proxy. If you are present at the special meeting and cast your vote in person by ballot, your previous vote by proxy will not be counted.

If your shares are held in “street name” through a broker, bank, trustee or other nominee, you may vote through your broker, bank, trustee or other nominee by completing and returning the voting form provided by your broker, bank, trustee or other nominee, or, if such a service is provided by your broker, bank, trustee or other nominee, by telephone or electronically over the Internet. To vote by telephone or over the Internet through your broker, bank, trustee or other nominee, you should follow the instructions on the voting instruction form provided by your broker, bank, trustee or other nominee.

If you own Pinnacle common stock and have any questions about electronic voting by the internet or over the telephone you may also contact MacKenzie Partners, Inc. for assistance in voting.

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If your shares are registered directly in your name with Pinnacle’s transfer agent, Computershare Investor Services, you are considered, with respect to those shares, the stockholder of record, and these proxy materials are being sent directly to you by Pinnacle. As the stockholder of record, you have the right to grant your voting proxy directly to Pinnacle or to a third party, or to vote in person at the special meeting. Pinnacle has enclosed a proxy card for you to use.

If your shares are held in a brokerage account or by another nominee, you are considered the beneficial owner of shares held in “street name” and these proxy materials are being forwarded to you together with a voting instruction form on behalf of your broker, bank, trustee or other nominee. As the beneficial owner, you have the right to direct your broker, bank, trustee or other nominee how to vote and you also are invited to attend the special meeting. Your broker, bank, trustee or other nominee has enclosed or provided voting instructions for you to use in directing the broker, bank, trustee or other nominee in how to vote your shares. Because a beneficial owner is not the stockholder of record, you may not vote these shares in person at the special meeting unless you obtain a “legal proxy” from the broker, bank, trustee or other nominee that holds your shares, giving you the right to vote the shares at the special meeting.

If you hold shares in street name, you may submit new voting instructions by contacting your bank, broker or other nominee.

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SELECTED HISTORICAL CONSOLIDATED FINANCIAL DATA OF CONAGRA

The following table sets forth selected historical consolidated financial data of Conagra for each of the fiscal years ended May 2014 through 2018. Conagra’s fiscal year ends on the last Sunday in May. The selected historical consolidated financial data as of May 2018 and 2017, and for each of the fiscal years ended May 2014 through 2018 have been derived from Conagra’s audited consolidated financial statements and should be read together with those audited consolidated financial statements and related notes and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” contained in Conagra’s Annual Report on Form 10-K for Conagra’s fiscal year ended May 27, 2018, which is incorporated by reference into this proxy statement/prospectus. The selected historical consolidated financial data as of May 2016, 2015 and 2014, and for the years ended May 2015 and 2014, has been derived from Conagra’s audited consolidated financial statements for such years, which have previously been filed with the SEC but which are not incorporated by reference into this proxy statement/prospectus. You should read the selected historical consolidated financial data in conjunction with Conagra’s consolidated financial statements, the related notes and other financial information incorporated by reference in this proxy statement/prospectus. For more information, see the section titled “Where You Can Find More Information” contained in this proxy statement/prospectus.

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SELECTED HISTORICAL CONSOLIDATED FINANCIAL DATA OF PINNACLE

The following tables present selected historical consolidated financial data of Pinnacle for the fiscal years ended December 31, 2017, December 25, 2016, December 27, 2015, December 28, 2014, and December 29, 2013 and for the six months ended July 1, 2018 and June 25, 2017. The selected historical consolidated financial data as of December 31, 2017 and December 25, 2016, and for the three-year period ended December 31, 2017, are derived from Pinnacle’s audited consolidated financial statements and accompanying notes, which are contained in Pinnacle’s Annual Report on Form 10-K for the year ended December 31, 2017, which is incorporated by reference into this proxy statement/prospectus. The selected historical consolidated financial data as of December 27, 2015, December 28, 2014 and December 29, 2013 and for the fiscal years ended December 28, 2014 and December 29, 2013, are derived from Pinnacle’s audited consolidated financial statements for such years, which have previously been filed with the SEC but which are not incorporated by reference into this proxy statement/prospectus. The financial data as of and for the six months ended July 1, 2018 and June 25, 2017 have been obtained from Pinnacle’s unaudited consolidated financial statements included in Pinnacle’s Quarterly Report on Form 10-Q for the fiscal quarterly period ended July 1, 2018, which is incorporated by reference into this proxy statement/prospectus.

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The information set forth below is only a summary. You should read the following information together with Pinnacle’s audited consolidated financial statements and accompanying notes and the sections titled “Management’s Discussion and Analysis of Financial Condition and Results of Operations” contained in Pinnacle’s Annual Report on Form 10-K for the year ended December 31, 2017 and Pinnacle’s Quarterly Report on Form 10-Q for the quarterly period ended July 1, 2018, each of which is incorporated by reference into this proxy statement/prospectus, and in Pinnacle’s other reports filed with the SEC. For more information, see the section titled “Where You Can Find More Information” contained in this proxy statement/prospectus.

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COMPARATIVE HISTORICAL AND UNAUDITED PRO FORMA PER SHARE DATA

Historical per Share Data for Conagra and Pinnacle Common Stock

The historical per share data for Conagra and Pinnacle common stock below is derived from the audited consolidated financial statements of each of Conagra and Pinnacle as of and for the years ended May 27, 2018 and December 31, 2017, respectively.

Unaudited Pro Forma Combined per Share Data for Conagra Common Stock

The unaudited pro forma combined per share data for Conagra common stock set forth below gives effect to the merger as if it had occurred on May 29, 2017, the beginning of the earliest period presented, in the case of continuing net income per share data, and as of May 27, 2018, in the case of book value per share data, and assuming that each outstanding share of Pinnacle common stock had been converted into shares of Conagra common stock based on the exchange ratio of 0.6494. The exchange ratio does not include the $43.11 cash portion of the merger consideration.

The unaudited pro forma combined per share data for Conagra common stock has been derived from the audited consolidated financial statements of Conagra as of and for the year ended May 27, 2018 and unaudited consolidated financial statements of Pinnacle as of and for the four quarterly periods ended April 1, 2018 which was determined by adding Pinnacle’s unaudited results for the three months ended April 1, 2018 to the results for the fiscal year ended December 31, 2017 and subtracting the results of the three months ended March 26, 2017.

The unaudited pro forma combined per share data for Conagra common stock has been derived using the acquisition method of accounting. See the section titled “Unaudited Pro Forma Condensed Combined Financial Information” contained in this proxy statement/prospectus. Accordingly, the pro forma adjustments reflect the assets and liabilities of Pinnacle at their preliminary estimated fair values. Differences between these preliminary estimates and the final values in acquisition accounting will occur and these differences could have a material impact on the unaudited pro forma combined per share information set forth below.

The unaudited pro forma combined per share data for Conagra common stock does not purport to represent the actual results of operations that Conagra would have achieved had the merger been completed during these periods or to project the future results of operations that Conagra may achieve after the merger.

Unaudited Pro Forma Combined per Pinnacle Equivalent Share Data

The unaudited pro forma combined per Pinnacle equivalent share data set forth below shows the effect of the merger from the perspective of an owner of Pinnacle common stock. The information was calculated by multiplying the unaudited pro forma combined per share data for Conagra common stock by the exchange ratio of 0.6494. The exchange ratio does not include the $43.11 cash portion of the merger consideration.

Generally

You should read the below information in conjunction with the selected historical consolidated financial data included elsewhere in this proxy statement/prospectus and the historical consolidated financial statements of Conagra and Pinnacle and related notes that have been filed with the SEC, certain of which are incorporated by reference into this proxy statement/prospectus. See the sections titled “Selected Historical Consolidated Financial Data of Conagra”, “Selected Historical Consolidated Financial Data of Pinnacle” and “Where You Can Find More Information” contained in this proxy statement/prospectus. The unaudited pro forma combined per share data for Conagra common stock and the unaudited pro forma combined per Pinnacle equivalent share data is derived from, and should be read in conjunction with, the unaudited pro forma combined financial information and related notes included in this proxy statement/prospectus. See the section titled “Unaudited Pro Forma Condensed Combined Financial Information” contained in this proxy statement/prospectus.

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The following table sets forth certain historical and unaudited pro forma combined per share information for Conagra and Pinnacle.

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COMPARATIVE PER SHARE MARKET PRICE AND DIVIDEND INFORMATION

Market Prices

Conagra common stock is listed on NYSE under the trading symbol “CAG”. Pinnacle common stock is listed on NYSE under the trading symbol “PF”.

Conagra’s fiscal year ends on the last Sunday in May. The cash dividends declared, and the high and low sales prices per share for Conagra common stock as reported on NYSE, were as follows:

Pinnacle’s fiscal year ends on the last Sunday in December. The cash dividends declared, and the high and low sales prices per share for Pinnacle common stock as reported on NYSE, were as follows:

The following table sets forth the closing price per share of Conagra common stock and of Pinnacle common stock as of June 26, 2018, the last trading day prior to the public announcement of the merger and September 14, 2018, the most recent practicable trading day prior to the date of this proxy statement/prospectus. The table also shows the implied value of the merger consideration for each share of Pinnacle common stock as of the same two dates. This implied value was calculated by multiplying the closing price of a share of Conagra

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common stock on the relevant date by the exchange ratio of 0.6494, representing the stock portion of the merger consideration, and adding $43.11, the cash portion of the merger consideration.

The market prices of shares of Conagra common stock and Pinnacle common stock have fluctuated since the date of the announcement of the merger and will continue to fluctuate from the date of this proxy statement/prospectus to the date of the special meeting and the date the merger is completed, and the market price of shares of Conagra common stock will continue to fluctuate after the closing of the merger. No assurance can be given concerning the market prices of Conagra common stock or Pinnacle common stock before the closing of the merger or Conagra common stock after the closing of the merger. The exchange ratio is fixed in the merger agreement, but the market price of Conagra common stock (and therefore the value of the merger consideration) when received by Pinnacle stockholders after the closing of the merger could be greater than, less than or the same as shown in the table above. Accordingly, Pinnacle stockholders are advised to obtain current market quotations for Conagra common stock and Pinnacle common stock when considering whether to vote “FOR” the adoption of the merger agreement.

Dividends

Conagra currently pays a quarterly dividend on Conagra common stock. Under the terms of the merger agreement, until the effective time of the merger, Conagra will not, and will not permit any Conagra subsidiary, to declare, set aside, make or pay any dividend or other distribution with respect to any of its capital stock other than its regular quarterly cash dividends made in accordance with its past practices in an amount up to $0.2125 per share. Conagra last paid a quarterly dividend on August 30, 2018, of $0.2125 per share.

Pinnacle currently pays a quarterly dividend on Pinnacle common stock. Under the terms of the merger agreement, until the effective time of the merger, Pinnacle will not, and will not permit any Pinnacle subsidiary, to declare, set aside, make or pay any dividend or other distribution with respect to any of its capital stock other than (1) dividends and distributions by a direct or indirect wholly owned subsidiary of Pinnacle to Pinnacle or any other direct or indirect wholly owned subsidiary of Pinnacle or (2) Pinnacle’s regular quarterly cash dividends made in accordance with its past practices in an amount up to $0.325 per share. On August 22, 2018, Pinnacle announced that the Pinnacle board approved a quarterly cash dividend of $0.325 per share to be paid on October 15, 2018 to Pinnacle stockholders of record as of the close of business on September 4, 2018. Pinnacle last paid a quarterly dividend on July 12, 2018 of $0.325 per share.

Any Pinnacle stockholder who holds the Conagra common stock into which Pinnacle common stock is converted in the merger will receive whatever dividends are declared and paid on Conagra common stock after the effective time of the merger. However, no dividend or other distribution having a record date after the effective time of the merger will actually be paid with respect to any Conagra common stock into which Pinnacle common stock has been converted in the merger until the certificates formerly representing shares of Pinnacle common stock have been surrendered (or the book-entry shares formerly representing shares of Pinnacle common stock have been transferred), at which time any accrued dividends and other distributions on those shares of Conagra common stock will be paid without interest. Subject to the limitations set forth in the merger agreement, any future dividends by Conagra will be declared and paid at the discretion of the Conagra board, and any future dividends by Pinnacle will be declared and paid at the discretion of the Pinnacle board. There can be no assurance that any future dividends will be declared or paid by Conagra or Pinnacle or as to the amount or timing of those dividends, if any.

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CAUTIONARY INFORMATION REGARDING FORWARD-LOOKING STATEMENTS

Statements included or incorporated by reference into this proxy statement/prospectus that are not historical in nature are forward-looking statements made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995 and other federal securities laws. These forward-looking statements relate to information or assumptions about the timing of the closing of the merger, the expected benefits of the merger, plans, goals, projections and objectives of Conagra and Pinnacle for future operations, scale and performance, integration plans and expected cost savings therefrom, and anticipated future financial and operating performance results, including operating margin or gross margin improvements, capital and other expenditures, cash flow, dividends, restructuring and other project costs and debt ratings, among other things. Forward-looking statements are accompanied by words such as “anticipate”, “believe”, “estimate”, “expect”, “intend”, “may”, “objective”, “outlook”, “plan”, “project”, “possible”, “potential”, “should”, “target”, “will”, “would”, and similar expressions.

Statements regarding future events or the future performance or results inherently are subject to a variety of risks, contingencies and other uncertainties that could cause actual results, performance or achievements to differ materially from those described in or implied by the forward-looking statements. The risks, contingencies and other uncertainties that could result in the failure of the proposed transaction to be completed or, if completed, that could have a material adverse effect on the results of operations, cash flows and financial position of Conagra, Pinnacle or the combined company following the merger, and any anticipated benefits of the merger to Conagra, Pinnacle or the combined company include:

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For a further discussion of these and other risks, contingencies and uncertainties that may impact Conagra, Pinnacle or the combined company, and that Pinnacle stockholders should consider prior to deciding whether to vote “FOR” the adoption of the merger agreement, see the section titled “Risk Factors” contained in this proxy statement/prospectus and in Conagra’s and Pinnacle’s other filings with the SEC incorporated by reference into this proxy statement/prospectus.

Due to these risks, contingencies and other uncertainties, you are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this proxy statement/prospectus as to the forward-looking statements contained in this proxy statement/prospectus, and as of the date of any document incorporated by reference into this proxy statement/prospectus as to any forward-looking statement incorporated by reference herein. Except as provided by federal securities laws, neither Conagra nor Pinnacle is required to publicly update or revise any forward-looking statement, whether as a result of new information, future events or otherwise. All subsequent written or oral forward-looking statements attributable to Conagra or Pinnacle or any person acting on its or their behalf are expressly qualified in their entirety by the cautionary statements contained or referred to in this section. Conagra and Pinnacle do not undertake any obligation to release publicly any revisions to these forward-looking statements to reflect events or circumstances after the date of this proxy statement/prospectus or to reflect the occurrence of unanticipated events, except as may be required under applicable federal securities laws.

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RISK FACTORS

Conagra stockholders and Pinnacle stockholders should carefully consider the following risk factors and all of the other information contained in or incorporated by reference into this proxy statement/prospectus, including but not limited to, the matters addressed in the section titled “Cautionary Information Regarding Forward-Looking Statements” contained in this proxy statement/prospectus and the matters discussed under “Item 1A. Risk Factors” of Conagra’s Annual Report on Form 10-K for the fiscal year ended May 27, 2018 and Pinnacle’s Annual Report on Form 10-K for the fiscal year ended December 31, 2017, as updated from time to time in Conagra’s and Pinnacle’s subsequent filings with the SEC, which are incorporated by reference into this proxy statement/prospectus. For further information regarding the documents incorporated into this proxy statement/prospectus by reference, please see the section titled “Where You Can Find More Information” contained in this proxy statement/prospectus.

Risk Factors Relating to the Merger

The exchange ratio is fixed and will not be adjusted in the event of any change in either Conagra’s or Pinnacle’s stock price. Because the market price of Conagra common stock may fluctuate, the value of the merger consideration is uncertain.

In the merger, each share of Pinnacle common stock issued and outstanding immediately prior to the effective time of the merger (other than excluded shares) will be converted into the right to receive (i) $43.11 in cash and (ii) 0.6494 shares of Conagra common stock. No fractional shares will be issued in the merger, and Pinnacle stockholders will receive cash in lieu of any fractional shares.

Though the cash portion of the merger consideration is known, because the exchange ratio is fixed, the value of the stock portion of the merger consideration will depend on the market price of Conagra common stock at the effective time of the merger. The exchange ratio will not be adjusted for changes in the market price of the common stock of Conagra or Pinnacle between the date of signing the merger agreement and the closing of the merger. There will be a lapse of time between the date on which Pinnacle stockholders vote on the merger agreement at the special meeting and the date on which Pinnacle stockholders entitled to receive shares of Conagra common stock actually receive those shares. The value of the stock portion of the merger consideration has fluctuated since the date of the announcement of the merger agreement and will continue to fluctuate from the date of this proxy statement/prospectus to the effective time of the merger and thereafter. The closing sale price per share of Pinnacle common stock as of June 26, 2018, the last trading date before the public announcement of the merger agreement, was $67.86, and the closing sale price per share has fluctuated as high as $67.54 and as low as $64.51 between that date and September 14, 2018. The closing sale price per share of Conagra common stock as of June 26, 2018, the last trading date before the public announcement of the merger agreement, was $38.23, and the closing sale price per share has fluctuated as high as $38.25 and as low as $34.64 between that date and September 14, 2018. Accordingly, at the time of the special meeting, the value of the stock portion of the merger consideration will not be known. Stock price changes may result from a variety of factors, including, among others, general market and economic conditions, changes in Conagra’s and Pinnacle’s respective businesses, operations and prospects, cash flows, and financial position, market expectations of the likelihood that the merger will be completed, the timing of the completion, litigation, regulatory considerations, and other factors both within and beyond the control of Conagra and Pinnacle. Moreover, the issuance of additional shares of Conagra common stock in the share issuance could depress the per share price of Conagra common stock. There is no right to terminate the merger agreement, and the merger contemplated thereby, as a result of an increase or decrease in the market price of the shares of Conagra common stock prior to the effective time of the merger.

Pinnacle stockholders are urged to obtain the latest market quotations for shares of Conagra common stock prior to submitting their votes or attending the special meeting.

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The market price of shares of Conagra common stock will continue to fluctuate after the merger.

Upon the closing of the merger, holders of Pinnacle common stock will become holders of shares of Conagra common stock. The market price of shares of Conagra common stock may fluctuate significantly following the closing of the merger and holders of Pinnacle common stock could lose some or all of the value of their investment in Conagra common stock. In addition, the stock market has experienced significant price and volume fluctuations in recent times which, if they continue to occur, could have a material adverse effect on the market for, or liquidity of, the Conagra common stock, regardless of Conagra’s actual operating performance.

Current Pinnacle stockholders will generally have a reduced ownership and voting interest in Conagra after the merger and will generally exercise less influence over management.

Conagra expects to issue to Pinnacle stockholders approximately 77.4 million shares of Conagra common stock in the merger (including shares of Conagra common stock issuable in connection with certain performance based restricted stock awards). Based on the number of shares of common stock of Conagra expected to be outstanding immediately prior to the closing of the merger, but without giving effect to any issuance of shares of Conagra common stock as part of a permanent financing to fund a portion of the cash portion of the merger consideration, Pinnacle stockholders are expected to own approximately 16.5% of the common stock of Conagra immediately following closing of the merger.

Pinnacle stockholders currently have the right to vote for Pinnacle’s directors and on other matters affecting Pinnacle. At the closing of the merger, each Pinnacle stockholder that receives shares of Conagra common stock and is not already a stockholder of Conagra will become a stockholder of Conagra with a percentage ownership that will be significantly smaller than such stockholder’s percentage ownership of Pinnacle prior to the merger. As a result of this reduced ownership percentage, upon closing of the merger, each former Pinnacle stockholder will generally have less voting power in Conagra than they now have in Pinnacle.

The shares of Conagra common stock to be received by Pinnacle stockholders upon the closing of the merger will have different rights from shares of Pinnacle common stock.

Upon the closing of the merger, Pinnacle stockholders will no longer be stockholders of Pinnacle. Instead, former Pinnacle stockholders will become stockholders of Conagra and their rights as Conagra stockholders will be governed by the terms of the Conagra certificate of incorporation and the Conagra bylaws. The terms of the Conagra certificate of incorporation and the Conagra bylaws are in some respects materially different than the terms of the Pinnacle certificate of incorporation and the Pinnacle bylaws, which currently govern the rights of Pinnacle stockholders. See the section titled “Comparison of Stockholders’ Rights” contained in this proxy statement/prospectus for a discussion of the different rights associated with shares of Conagra common stock and shares of Pinnacle common stock.

The market price of shares of Conagra common stock may be affected by factors different from those that historically have affected shares of Pinnacle common stock.

Upon the closing of the merger, holders of Pinnacle common stock will become holders of Conagra common stock. The businesses of Conagra differ from those of Pinnacle in certain respects and, accordingly, the financial position or results of operations and/or cash flows of Conagra after the merger, as well as the market price of shares of Conagra common stock, may be affected by factors different from those currently affecting the financial position or results of operations and/or cash flows of Pinnacle. Following the closing of the merger, Pinnacle will be part of a larger company with other lines of business and a broader geographic footprint, so decisions affecting Pinnacle may be made in respect of the larger combined business as a whole rather than the Pinnacle businesses individually. For a discussion of the businesses of Conagra and Pinnacle and of some important factors to consider in connection with those businesses, see the section titled “The Companies” contained in this proxy statement/prospectus, and the documents incorporated by reference.

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The merger is subject to the receipt of approval from Pinnacle stockholders. Failure to obtain this approval would prevent the closing of the merger.

Before the merger can be completed, Pinnacle stockholders must adopt the merger agreement. There can be no assurance that this approval will be obtained. Failure to obtain the required approval may result in a material delay in, or the abandonment of, the merger. Any delay in completing the merger may materially adversely affect the timing and amount of cost savings and other benefits that are expected to be achieved from the merger.

The merger is subject to a number of conditions to the obligations of both Conagra and Pinnacle to complete the merger, which, if not fulfilled, or not fulfilled in a timely manner, may result in termination of the merger agreement.

The merger agreement contains a number of conditions to the closing of the merger, including, among others:

Many of the conditions to the closing of the merger are not within either Conagra’s or Pinnacle’s control, and neither company can predict when or if these conditions will be satisfied. If any of these conditions are not satisfied or waived prior to April 1, 2019, which may be automatically extended to June 26, 2019 if certain conditions related to regulatory consents and litigation have not been satisfied or waived, it is possible that the merger agreement may be terminated. Although Conagra and Pinnacle have agreed in the merger agreement to use reasonable best efforts, subject to certain limitations, to complete the merger as promptly as practicable, these and other conditions to the closing of the merger may fail to be satisfied. In addition, satisfying the conditions to and the closing of the merger may take longer and could cost more than Conagra and Pinnacle expect. Neither Conagra nor Pinnacle can predict whether and when these other conditions will be satisfied. Any delay in completing the merger may adversely affect the cost savings and other benefits that Conagra expects to achieve if the merger and the integration of the companies’ respective businesses are completed within the expected timeframe.

Conagra may encounter difficulties or high costs associated with securing financing necessary to pay the cash portion of the merger consideration.

Conagra’s obligation to complete the merger is not subject to a financing condition. To the extent necessary, Conagra may fund all or a portion of the cash portion of the merger consideration from borrowings under the bridge credit facility. Conagra intends to replace the availability under the bridge credit facility with permanent or alternative financing. Specifically, in connection with the merger, Conagra expects to incur up to $8.3 billion

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of long-term debt (which includes any funding under the new term loan facility), the proceeds of which would be used to fund the payment of the cash portion of the merger consideration, the repayment of Pinnacle debt, the refinancing of certain Conagra debt, and the payment of related fees and expenses. The permanent financing is also expected to include approximately $600 million of incremental cash proceeds from the issuance of equity and/or divestitures.

There is no guarantee that permanent or alternative financing will be available to Conagra on acceptable terms or at all. Conagra’s ability to obtain financing to replace or supplement the commitment under the bridge credit facility will be subject to various factors, including market conditions, operating performance and credit ratings, and may be subject to restrictions in the agreements relating to Conagra’s outstanding debt.

The receipt of financing by Conagra is not a condition to the closing of the merger or any of the other transactions contemplated by the merger agreement and Conagra will be required to complete the merger (assuming that all of the conditions to its obligations under the merger agreement are satisfied), whether or not the bridge credit facility or other financing is available on acceptable terms or at all.

Uncertainties associated with the merger may cause a loss of management personnel and other key employees which could adversely affect the future business and operations of Conagra following the merger.

Conagra and Pinnacle are dependent on the experience and industry knowledge of their officers and other key employees to execute their business plans. Each company’s success until the merger, and Conagra’s success after the merger, will depend in part upon the ability of Conagra and Pinnacle to retain key management personnel and other key employees. Current and prospective employees of Conagra and Pinnacle may experience uncertainty about their roles within Conagra following the merger or other concerns regarding the timing and the closing of the merger or the operations of Conagra following the merger, any of which may have an adverse effect on the ability of each of Conagra and Pinnacle to attract or retain key management and other key personnel. Accordingly, no assurance can be given that following the merger Conagra will be able to attract or retain key management personnel and other key employees of Conagra and Pinnacle to the same extent that Conagra and Pinnacle have previously been able to attract or retain their own employees.

The business relationships of Conagra and Pinnacle may be subject to disruption due to uncertainty associated with the merger, which could have a material adverse effect on the results of operations, cash flows and financial position of Conagra or Pinnacle following the merger.

Parties with which Conagra or Pinnacle do business may experience uncertainty associated with the merger, including with respect to current or future business relationships with Conagra or Pinnacle following the merger. Conagra’s and Pinnacle’s business relationships may be subject to disruption as customers, distributors, suppliers, vendors and others may attempt to negotiate changes in existing business relationships or consider entering into business relationships with parties other than Conagra or Pinnacle following the merger. These disruptions could have an adverse effect on the results of operations, cash flows and financial position of Conagra or Pinnacle, including an adverse effect on Conagra’s ability to realize the expected cost savings and other benefits of the merger, regardless of whether the merger is completed. The risk, and adverse effect, of any disruption could be exacerbated by a delay in the closing of the merger or termination of the merger agreement.

The pursuit of the merger and the preparation for the integration may place a significant burden on Conagra’s or Pinnacle’s management and internal resources. Any significant diversion of management attention away from ongoing business and any difficulties encountered in the transition and integration process could affect Conagra’s or Pinnacle’s financial results.

The merger agreement subjects Conagra and Pinnacle to restrictions on their respective business activities prior to the effective time of the merger.

The merger agreement subjects Conagra and Pinnacle to restrictions on their respective business activities and obligates Conagra and Pinnacle to generally operate their businesses in the ordinary course, consistent with

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past practice, until the effective time of the merger. These restrictions could prevent Conagra and Pinnacle from pursuing attractive business opportunities that arise prior to the effective time of the merger and are outside the ordinary course of business.

Pinnacle’s directors and executive officers have interests in the merger that may be different from, or in addition to, the interests of Pinnacle stockholders generally.

In considering the proposals to be voted on at the special meeting, you should be aware that Pinnacle’s directors and executive officers have interests in the merger that may be different from, or in addition to, the interests of Pinnacle stockholders generally. These interests include, among others, the treatment of outstanding equity awards pursuant to the merger agreement, potential severance benefits and other payments and rights to ongoing indemnification and insurance coverage. The members of the Pinnacle board were aware of and considered these interests in reaching the determination to approve the merger agreement and recommend that the holders of Pinnacle common stock vote their shares to adopt the merger agreement. For more information, please see the section titled “The Merger Agreement Proposal—Interests of Pinnacle’s Directors and Executive Officers in the Merger” contained in this proxy statement/prospectus.

Lawsuits have been filed against Pinnacle, the Pinnacle board and Conagra and other lawsuits may be filed against Pinnacle, Conagra and/or their respective boards challenging the merger. An adverse ruling in any such lawsuit could result in substantial costs and may delay or prevent the merger from being completed.

On August 7, 2018, a purported stockholder of Pinnacle filed a complaint in a putative class action in the United States District Court for the District of New Jersey, captioned Alexander Rasmussen v. Pinnacle Foods Inc. et al., Case No. 2:18-cv-12501. On August 9, 2018, a purported stockholder of Pinnacle filed a complaint in a putative class action in the United States District Court for the District of New Jersey, captioned Robert H. Paquette v. Pinnacle Foods Inc. et al., Case No. 2:18-cv-12578. On August 9, 2018, a purported stockholder of Pinnacle filed a complaint in a putative class action in the United States District Court for the District of New Jersey, captioned Wesley Lindquist v. Pinnacle Foods Inc. et al., Case No. 2:18-cv-12610. The Rasmussen Action, the Paquette Action and the Lindquist Action allege that Pinnacle’s preliminary proxy statement, filed with the SEC on July 25, 2018, omits material information with respect to the merger, rendering it false and misleading and thus that Pinnacle and the directors of Pinnacle violated Section 14(a) of the Exchange Act as well as Rule 14a-9 under the Exchange Act. The Rasmussen Action, the Paquette Action and the Lindquist Action further allege that the directors of Pinnacle violated Section 20(a) of the Exchange Act.

On August 15, 2018, a purported stockholder of Pinnacle filed a complaint in a putative class action in the Court of Chancery of the State of Delaware, captioned Jordan Rosenblatt v. Pinnacle Foods Inc. et al., Case No. 2018-0605. The Rosenblatt Action alleges that the directors of Pinnacle breached their fiduciary duty of disclosure by filing a preliminary proxy statement that contained materially incomplete and misleading information. The Rosenblatt Action further alleges that Pinnacle, Conagra and Merger Sub aided and abetted the directors’ alleged breach of fiduciary duty.

Defending against these lawsuits, and other lawsuits which may be filed, may result in substantial costs and divert management time and resources. An adverse judgment could result in monetary damages, which could have a negative impact on Conagra’s or Pinnacle’s respective liquidity and financial condition.

One of the conditions to the closing of the merger is the absence of legal proceedings before a specified court or other governmental entity of competent jurisdiction that restrains, enjoins or otherwise prohibits the closing of the merger. Accordingly, if a plaintiff is successful in obtaining an injunction prohibiting the closing of the merger, then that injunction may delay or prevent the merger from being completed, which may adversely affect Conagra’s and Pinnacle’s respective business, financial position and results of operations.

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The closing of the merger may trigger change in control or other provisions in certain agreements to which Pinnacle is a party.

The closing of the merger may trigger change in control or other provisions in certain agreements to which Pinnacle is a party. If Conagra and Pinnacle are unable to negotiate waivers of those provisions, the counterparties may exercise their rights and remedies under the agreements, potentially terminating the agreements or seeking monetary damages. Even if Conagra and Pinnacle are able to negotiate waivers, the counterparties may require a fee for such waivers or seek to renegotiate the agreements on terms less favorable to Pinnacle.

The merger agreement limits Pinnacle’s ability to pursue alternatives to the merger and may discourage other companies from trying to acquire Pinnacle.

The merger agreement contains “no shop” provisions that prohibit Pinnacle from soliciting or initiating discussions with third parties regarding other proposals to acquire Pinnacle, and Pinnacle has agreed to certain terms and conditions restricting its ability to respond to, enter into discussion and negotiation with respect to, and approve and accept, certain unsolicited proposals that constitute or are reasonably likely to lead to a superior proposal. In addition, Conagra generally has an opportunity to offer to modify the terms of the merger in response to any competing acquisition proposals before Pinnacle’s board of directors may withdraw or qualify its recommendation to stockholders for approval of the merger agreement. The merger agreement further provides that, upon termination of the merger agreement under specified circumstances, including termination by Pinnacle to enter into a definitive agreement for a proposal that constitutes a superior proposal or following a change, qualification or withdrawal of its recommendation to Pinnacle stockholders to approve the merger agreement, Pinnacle will be required to pay Conagra a cash termination fee equal to $263,785,600.

These provisions could discourage a potential third-party acquirer that might have an interest in acquiring all or a significant portion of Conagra or Pinnacle from considering or proposing that acquisition, even if it were prepared to pay consideration with a higher per share cash or total value than the total value proposed to be paid or received in the merger. These provisions might also result in a potential third-party acquirer proposing to pay a lower price to the stockholders than it might otherwise have proposed to pay because of the added expense of the termination fee and other fees and expenses that may become payable in certain circumstances. If the merger agreement is terminated and Pinnacle determines to seek another business combination, it may not be able to negotiate a transaction with another party on terms comparable to, or better than, the terms of the merger.

The merger may not occur at all or may not occur in the expected time frame, which may negatively impact Conagra’s or Pinnacle’s stock price and have a material adverse effect on either or both of their results of operations, cash flows and financial position.

The closing of the merger is not assured and is subject to Pinnacle stockholder approval and the satisfaction or waiver of customary closing conditions.

The merger is subject to risks and uncertainties, including the risks that the necessary Pinnacle stockholder approval will not be obtained or that other closing conditions will not be satisfied. If the merger is not completed or if there are significant delays in completing the merger the ongoing businesses of Conagra and Pinnacle may be materially adversely affected and, without realizing any of the benefits of having completed the merger, Conagra and Pinnacle would be subject to a number of risks, including the following:

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If the merger is not completed, the risks described above may materialize and they may have a material adverse effect on Conagra’s or Pinnacle’s results of operations, cash flows, financial position and stock prices.

The unaudited pro forma condensed combined financial information and the unaudited prospective financial information included in this proxy statement/prospectus are based on a number of preliminary estimates and assumptions and the actual results of operations and financial position of Conagra after the merger may differ materially.

The unaudited pro forma condensed combined financial information in this proxy statement/prospectus is presented for illustrative purposes only and is not necessarily indicative of what Conagra’s actual results of operations and financial position would have been had the merger been completed on the dates indicated. The unaudited pro forma condensed combined financial information reflects adjustments, which are based upon preliminary estimates, to record the Pinnacle identifiable assets to be acquired and liabilities to be assumed at fair value, and the resulting goodwill to be recognized. The purchase price allocation reflected is preliminary, and final allocation of the purchase price will be based upon the actual purchase price and the fair value of the assets acquired and liabilities assumed in the merger. Accordingly, the final acquisition accounting adjustments may differ materially from the pro forma adjustments reflected in this document. The unaudited pro forma condensed combined financial information is also based on a number of other estimates and assumptions, including estimates and assumptions of the type and terms of debt to be incurred to pay the cash portion of the merger consideration and the related fees and expenses. If the type or terms of the new debt actually incurred differ materially from the estimates and assumptions set out in the accompanying unaudited pro forma condensed combined financial information, Conagra’s actual results and financial condition after the closing of the merger could differ materially from the results and financial condition contemplated by the unaudited pro forma condensed combined financial information.

The unaudited prospective financial information prepared by Pinnacle in this proxy statement/prospectus was prepared for Pinnacle’s internal purposes and is presented in this proxy statement/prospectus because such forecasts were furnished to the Pinnacle board and its financial advisors. The unaudited prospective financial information is based on numerous variables and assumptions that are inherently uncertain and are beyond the control of each company’s management team, including assumptions with respect to macro-economic trends, interest rates and anticipated growth rates, and is not necessarily indicative of what each company’s actual results of operations, cash flows or financial position would be on the dates indicated. The assumptions used in preparing these forecasts may not prove to be accurate and other factors may affect Conagra’s actual results and financial condition after the closing of the merger, which may cause Conagra’s actual results and financial condition to differ materially from the estimates contained in the unaudited prospective financial information prepared by Pinnacle.

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The merger may involve unexpected costs, unexpected liabilities or unexpected delays.

Conagra and Pinnacle currently expect to incur substantial costs and expenses relating directly to the merger, including debt financing and refinancing costs, fees and expenses payable to financial advisors, professional fees and expenses, insurance premium costs, fees and costs relating to regulatory filings and notices, SEC filing fees, printing and mailing costs and other transaction-related costs, fees and expenses. In addition, the merger and post-merger integration process may give rise to unexpected liabilities and costs, including costs associated with the defense and resolution of possible litigation or other claims, which may significantly increase the related costs and expenses incurred by the combined company.

Risk Factors Relating to Conagra Following the Merger

Conagra may not realize the cost synergies from the merger.

The benefits that are expected to result from the merger will depend, in part, on Conagra’s ability to realize the anticipated growth opportunities and cost synergies as a result of the merger. Conagra’s success in realizing these growth opportunities and cost synergies, and the timing of this realization, depends on the successful integration of Pinnacle. There is a significant degree of difficulty and management distraction inherent in the process of integrating an acquisition as sizable as Pinnacle. The process of integrating operations could cause an interruption of, or loss of momentum in, Conagra’s and Pinnacle’s activities. Members of Conagra’s senior management may be required to devote considerable amounts of time to this integration process, which will decrease the time they will have to manage Conagra, service existing customers, attract new customers, and develop new products or strategies. If senior management is not able to effectively manage the integration process, or if any significant business activities are interrupted as a result of the integration process, the businesses of Conagra and Pinnacle could suffer. There can be no assurance that Conagra will successfully or cost-effectively integrate Pinnacle. The failure to do so could have a material adverse effect on Conagra’s and Pinnacle’s business, financial condition, and results of operations.

Even if Conagra is able to integrate Pinnacle successfully, this integration may not result in the realization of the full benefits that are currently expected from this integration, and there can be no guarantee that these benefits will be achieved within anticipated time frames or at all. For example, Conagra may not be able to eliminate duplicative costs. Moreover, Conagra may incur substantial expenses in connection with the integration of Pinnacle. While it is anticipated that certain expenses will be incurred to achieve cost synergies, such expenses are difficult to estimate accurately, and may exceed current estimates. Accordingly, the benefits from the planned acquisition may be offset by costs incurred to, or delays in, integrating the businesses.

The future results of Conagra following the merger will suffer if Conagra does not effectively manage its expanded operations.

Following the merger, the size of the business of Conagra will increase beyond the current size of either Conagra’s or Pinnacle’s business. Conagra’s future success will depend, in part, upon its ability to manage this expanded business, including challenges related to the management and monitoring of new operations and associated increased costs and complexity. There can be no assurances that Conagra will be successful or that it will realize the expected operating efficiencies, cost savings, revenue enhancements or other benefits currently anticipated from the merger.

Conagra is expected to incur substantial expenses related to the merger and integration.

Conagra expects to achieve annual cost synergies following completion of the merger and expects to incur one-time cash costs estimated at approximately $355 million in connection with the achievement of those cost synergies. As part of the achievement of those cost synergies, there are a large number of processes, policies, procedures, operations, technologies and systems that will need to be integrated, including purchasing,

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accounting and finance, sales, payroll, pricing and benefits. There are many factors beyond Conagra’s control that could affect the total amount or the timing of the integration expenses. Moreover, many of the expenses that will be incurred are, by their nature, difficult to estimate accurately. These expenses could, particularly in the near term, exceed the savings that Conagra expects to achieve from the elimination of duplicative expenses and the realization of economies of scale and cost savings. These integration expenses likely will result in Conagra taking significant charges against earnings following the closing of the merger, and the amount and timing of such charges are uncertain at present.

Conagra will incur a substantial amount of debt to complete the merger. To service its debt, Conagra will require a significant amount of cash. Conagra’s ability to generate cash depends on many factors beyond its control. Conagra also depends on the business of its subsidiaries to satisfy its cash needs. If Conagra cannot generate the required cash, it may not be able to make the necessary payments required under its indebtedness.

At May 27, 2018, Conagra had total debt of approximately $3.8 billion. Conagra has the ability under its existing credit facilities to incur substantial additional indebtedness in the future, and it plans to incur significant additional indebtedness in connection with the completion of the merger. Specifically, in connection with the merger, Conagra expects to incur up to $8.3 billion of long-term debt (which includes any funding under the new term loan facility), the proceeds of which would be used to fund the payment of the cash portion of the merger consideration, the repayment of Pinnacle debt, the refinancing of certain Conagra debt, and the payment of related fees and expenses. Conagra’s ability to make payments on its debt, fund its other liquidity needs, and make planned capital expenditures will depend on its ability to generate cash in the future. Conagra’s historical financial results have been, and it anticipates that its future financial results will be, subject to fluctuations. Conagra’s ability to generate cash, to a certain extent, is subject to general economic, financial, competitive, legislative, regulatory and other factors that are beyond its control. Conagra cannot guarantee that its business will generate sufficient cash flow from its operations or that future borrowings will be available to it in an amount sufficient to enable it to make payments of its debt, fund other liquidity needs and make planned capital expenditures.

The degree to which Conagra is currently leveraged and will be leveraged following the closing of the merger could have important consequences for stockholders. For example, it could:

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Additionally, any failure to comply with covenants in the instruments governing Conagra’s debt could result in an event of default which, if not cured or waived, would have a material adverse effect on Conagra.

A significant portion of Conagra’s operations are conducted through its subsidiaries. As a result, Conagra’s ability to generate sufficient cash flow for its needs is dependent to some extent on the earnings of its subsidiaries and the payment of those earnings to Conagra in the form of dividends, loans or advances and through repayment of loans or advances from Conagra. Conagra’s subsidiaries are separate and distinct legal entities. Conagra’s subsidiaries have no obligation to pay any amounts due on its debt or to provide Conagra with funds to meet its cash flow needs, whether in the form of dividends, distributions, loans or other payments. In addition, any payment of dividends, loans or advances by Conagra’s subsidiaries could be subject to statutory or contractual restrictions. Payments to Conagra by its subsidiaries will also be contingent upon its subsidiaries’ earnings and business considerations. Conagra’s right to receive any assets of any of its subsidiaries upon their liquidation or reorganization will be effectively subordinated to the claims of that subsidiary’s creditors, including trade creditors. In addition, even if Conagra is a creditor of any of its subsidiaries, Conagra’s rights as a creditor would be subordinate to any security interest in the assets of its subsidiaries and any indebtedness of its subsidiaries senior to that held by Conagra. Finally, changes in the laws of foreign jurisdictions in which Conagra operates may adversely affect the ability of some of Conagra’s foreign subsidiaries to repatriate funds to Conagra.

The substantial additional indebtedness that Conagra will incur in connection with the merger could materially adversely affect its financial position after the merger, which may include a decrease in Conagra’s business flexibility, an increase in its borrowing costs and/or a reduction of Conagra’s credit ratings.

Following the closing of the merger, Conagra will have substantially increased debt. This increased level of debt or any further increase in Conagra’s level of debt in connection with the closing of the merger could have the effect, among other things, of reducing Conagra’s flexibility to respond to changing business and economic conditions and will have the effect of increasing Conagra’s interest expense. In addition, if Conagra is unable to timely reduce its level of indebtedness following the merger, Conagra will be subject to increased demands on its cash resources, which could increase its total debt to capitalization ratios, decrease its interest coverage ratios or otherwise result in a breach of certain covenants or otherwise adversely affect the business and financial results of the combined company.

Conagra’s credit ratings impact the cost and availability of future borrowings and, accordingly, Conagra’s cost of capital. Conagra’s credit ratings reflect each rating organization’s opinion of Conagra’s financial strength, operating performance and ability to meet Conagra’s debt obligations. Any contemplated or any actual reduction in Conagra’s credit ratings may limit Conagra’s ability to borrow at interest rates consistent with the interest rates currently available or available to Conagra prior to the merger, even if such reduction does not result in a loss of Conagra’s investment grade rating. Any impairment of Conagra’s ability to obtain future financing on favorable terms could have a material adverse effect on Conagra’s ability to finance the cash portion of the merger consideration through the issuance of debt securities or another alternative to borrowings under the bridge credit facility on terms more favorable than those contemplated by the bridge credit facility, or to refinance the bridge credit facility if drawn.

The merger may result in a loss of customers, suppliers or strategic alliances and may result in the termination of existing contracts.

Following the merger, some of the customers, potential customers, suppliers or strategic partners of Conagra or Pinnacle, as historical businesses, may terminate or scale back their business relationship with Conagra. Some customers may not wish to source a larger percentage of their needs from a single company, or may feel that Conagra is too closely allied with one of their competitors. In addition, Conagra and Pinnacle have contracts with customers, suppliers, vendors, landlords, licensors and other business partners which may require Conagra or Pinnacle to obtain consents from these other parties in connection with the merger, which may not be obtained at all or on favorable terms. If customer or supplier relationships or strategic alliances are adversely affected by the

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merger, or if Conagra, following the merger, loses the benefits of the contracts of Conagra or Pinnacle, Conagra’s business and financial performance could suffer.

Conagra may have to make additional contributions following the closing of the merger to fund pension and other post-retirement benefit plans, including Pinnacle plans.

Conagra and Pinnacle and their respective subsidiaries currently maintain and contribute to defined benefit pension plans and other post-retirement benefit plans that cover various categories of employees and retirees. The obligation to make contributions to fund benefit obligations under these pension and other post-retirement benefit plans is based on actuarial valuations, which are based on certain assumptions, including the long-term return on plan assets and the discount rate. Conagra may have to make additional contributions following the closing of the merger to fund pension and other post-retirement benefit plans, including any such Pinnacle plans. Additional contributions could have a material adverse effect on the results of operations, cash flows and financial position of Conagra.

The market price of shares of Conagra common stock may decline in the future as a result of the sale of shares of Conagra common stock held by former Pinnacle stockholders or current Conagra stockholders.

Based on the number of shares of Pinnacle common stock outstanding as of the date of this proxy statement/prospectus (other than excluded shares), Conagra expects to issue up to approximately 77.4 million shares of Conagra common stock to Pinnacle stockholders in the merger. Following their receipt of shares of Conagra common stock in the merger, former Pinnacle stockholders may seek to sell the shares of Conagra common stock delivered to them. Other Conagra stockholders may also seek to sell shares of Conagra common stock held by them following, or in anticipation of, the closing of the merger. These sales (or the perception that these sales may occur), coupled with the increase in the outstanding number of shares of Conagra common stock, may affect the market for, and the market price of, Conagra common stock in an adverse manner.

The combined company will record goodwill and other intangible assets that could become impaired and result in material non-cash charges to the results of operations of the combined company in the future.

The merger will be accounted for as an acquisition by Conagra in accordance with accounting principles generally accepted in the United States. Under the acquisition method of accounting, the assets and liabilities of Pinnacle and its subsidiaries will be recorded, as of completion, at their respective fair values and added to those of Conagra. The reported financial condition and results of operations of Conagra for periods after the closing of the merger will reflect Pinnacle balances and results after the closing of the merger, but will not be restated retroactively to reflect the historical financial position or results of operations of Pinnacle and its subsidiaries for periods prior to the merger. See the section titled “Unaudited Pro Forma Condensed Combined Financial Information” contained in this proxy statement/prospectus.

Other Risk Factors Relating to Conagra and Pinnacle Stockholders

As a result of entering into the merger agreement, Conagra’s and Pinnacle’s businesses are and will be subject to the risks described above. In addition, Conagra and Pinnacle are, and following the closing of the merger, Conagra will continue to be, subject to the risks described in Conagra’s Annual Report on Form 10-K for the fiscal year ended May 27, 2018 and Pinnacle’s Annual Report on Form 10-K for the fiscal year ended December 31, 2017, as updated from time to time in their subsequent filings with the SEC, including those incorporated by reference into this proxy statement/prospectus. See the section titled “Where You Can Find More Information” contained in this proxy statement/prospectus.

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PINNACLE PROPOSALS

Pinnacle Proposal 1: Merger Agreement Proposal

Pinnacle is asking its stockholders to adopt the merger agreement.

For a summary of and detailed information regarding this proposal, see the information about the merger agreement and the merger throughout this proxy statement/prospectus, including the information set forth in the sections titled “The Merger Agreement Proposal” and “The Merger Agreement”. A copy of the merger agreement is attached to this proxy statement/prospectus as Annex A. You are urged to read the merger agreement carefully and in its entirety.

Under applicable law, Pinnacle cannot complete the merger without the affirmative vote of the holders of a majority of all outstanding shares of Pinnacle common stock entitled to vote thereon. If you abstain from voting, fail to cast your vote, in person or by proxy, or fail to give voting instructions to your broker, bank, trustee or other nominee, it will have the same effect as a vote “AGAINST” the merger agreement proposal.

The Pinnacle board recommends that you vote “FOR” the merger agreement proposal.

Pinnacle Proposal 2: Nonbinding Compensation Proposal

Pinnacle is providing its stockholders with the opportunity to cast a vote, on a nonbinding, advisory basis, to approve the merger-related compensation that may be paid or become payable to Pinnacle’s named executive officers in connection with the merger as disclosed in the table titled “Potential Payments to Named Executive Officers” and the accompanying footnotes contained in this proxy statement/prospectus, as required by Section 14A of the Exchange Act, which was enacted as part of the Dodd-Frank Wall Street Reform and Consumer Protection Act.

The Pinnacle board recommends that Pinnacle stockholders approve the following resolution:

“RESOLVED, that the stockholders of Pinnacle approve, on an advisory, nonbinding basis, the “golden parachute” compensation which will or may be paid to Pinnacle’s named executive officers in connection with the merger, as disclosed pursuant to Item 402(t) of Regulation S-K in the table titled “Potential Payments to Named Executive Officers” and the accompanying footnotes contained in this proxy statement/prospectus”.

The vote on the nonbinding compensation proposal is a vote separate and apart from the vote on the adoption of the merger agreement. Accordingly, you may vote “FOR” the adoption of the merger agreement and abstain or vote against the nonbinding compensation proposal and vice versa. Because the vote on the nonbinding compensation proposal is advisory only, it will not be binding on either Pinnacle or Conagra. Accordingly, if the merger agreement is adopted and the merger is completed, the merger-related compensation that is contractually required to be paid to Pinnacle’s named executive officers will be paid or become payable, subject only to the conditions applicable thereto, regardless of the outcome of the nonbinding, advisory vote of Pinnacle stockholders.

The affirmative vote, in person or by proxy, of holders of a majority of the shares of Pinnacle common stock represented at the special meeting and entitled to vote thereon is required to approve the nonbinding compensation proposal.

The Pinnacle board recommends that you vote “FOR” the nonbinding compensation proposal.

Pinnacle Proposal 3: Adjournment Proposal

Pinnacle is asking its stockholders to approve a proposal to adjourn the special meeting, if necessary or appropriate, to solicit additional proxies if there are insufficient votes to adopt the merger agreement at the time

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of the special meeting. If Pinnacle stockholders approve the adjournment proposal, Pinnacle could adjourn the special meeting and any adjourned session of the special meeting and use the additional time to solicit additional proxies, including proxies from stockholders that have previously returned properly executed proxies voting against adoption of the merger agreement. Among other things, approval of the adjournment proposal could mean that, even if Pinnacle had received proxies representing a sufficient number of votes against adoption of the merger agreement such that the merger agreement proposal would be defeated, Pinnacle could adjourn the special meeting without a vote on the adoption of the merger agreement and seek to convince the holders of those shares to change their votes to vote in favor of adoption of the merger agreement. Additionally, Pinnacle may seek to adjourn the special meeting if a quorum is not present or otherwise at the discretion of the chairman of the special meeting.

The Pinnacle board recommends that you vote “FOR” the adjournment proposal.

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THE COMPANIES

Conagra Brands, Inc.

Conagra is one of North America’s leading branded food companies. Guided by an entrepreneurial spirit, the Company combines a rich heritage of making great food with a sharpened focus on innovation. The Company’s portfolio is evolving to satisfy people’s changing food preferences. Its iconic brands such as Marie Callender’s^®, Reddi-wip^®, Hunt’s^®, Healthy Choice^®, Slim Jim^®, and Orville Redenbacher’s^®, as well as emerging brands, including Alexia^®, Angie’s^® BOOMCHICKAPOP^®, Blake’s^®, Duke’s^® and Frontera^®, offer choices for every occasion.

Conagra’s Grocery & Snacks reporting segment principally includes branded, shelf stable food products sold in various retail channels in the United States.

Conagra’s Refrigerated & Frozen reporting segment principally includes branded, temperature controlled food products sold in various retail channels in the United States.

Conagra’s International reporting segment principally includes branded food products, in various temperature states, sold in various retail and foodservice channels outside of the United States.

Conagra’s Foodservice reporting segment includes branded and customized food products, including meals, entrees, sauces, and a variety of custom-manufactured culinary products packaged for sale to restaurants and other foodservice establishments primarily in the United States.

Conagra’s Commercial reporting segment included commercially branded and private label food and ingredients, which were sold primarily to commercial, restaurant, foodservice, food manufacturing, and industrial customers. The segment’s primary food items included a variety of vegetable, spice, and frozen bakery goods, which were sold under brands such as Spicetec Flavors & Seasonings^®. In the first quarter of fiscal 2017, Conagra sold its Spicetec and JM Swank businesses. These businesses comprised the entire Commercial segment following the presentation of Lamb Weston as discontinued operations.

Conagra was initially incorporated as a Nebraska corporation in 1919 and was reincorporated as a Delaware corporation in January 1976. Conagra’s principal executive offices are located at 222 Merchandise Mart Plaza, Suite 1300, Chicago, Illinois 60654, and its main telephone number is (312) 549-5000.

Pinnacle Foods Inc.

Pinnacle is a leading manufacturer, marketer and distributor of high-quality, branded food products in North America, with annual net sales of approximately $3.1 billion in fiscal 2017. Pinnacle’s brand portfolio enjoys strong household penetration in the United States, where its products can be found in over 85% of U.S. households. Pinnacle’s products are sold through supermarkets, grocery wholesalers and distributors, mass merchandisers, super centers, convenience stores, dollar stores, natural and organic food stores, drug stores, e-commerce websites and warehouse clubs in the United States and Canada, as well as in military channels and foodservice locations. Given Pinnacle’s diverse portfolio of brands with attractive market positions, its business generates significant and stable cash flows that has enabled Pinnacle to pay regular quarterly dividends to its stockholders, reduce its debt and drive value creation through both reinvestment in its existing brands and periodic strategic acquisitions.

Pinnacle’s business is organized into the following four reportable segments: The Frozen segment, The Grocery segment, The Boulder segment and The Specialty segment.

Pinnacle Foods Inc. was incorporated under the name “Crunch Holding Corp.” in Delaware on July 28, 2003. Pinnacle Foods Inc. is a holding company whose sole asset is 100% ownership of Peak Finance Holdings

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LLC, which is a holding company whose sole asset is 100% ownership of Pinnacle Foods Finance LLC. Pinnacle’s principal executive offices are located at 399 Jefferson Road, Parsippany, New Jersey 07054, and its telephone number is (973) 541-6620.

Patriot Merger Sub Inc.

Merger Sub, a wholly owned subsidiary of Conagra, is a Delaware corporation that was formed on June 22, 2018 for the sole purpose of effecting the merger. In the merger, Merger Sub will be merged with and into Pinnacle, with Pinnacle surviving as a wholly owned subsidiary of Conagra.

Its principal executive offices and its telephone number are the same as those of Conagra.

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SPECIAL MEETING OF PINNACLE STOCKHOLDERS

Date and Time of the Special Meeting

The special meeting will be held on October 23, 2018 at 9:00 a.m. (Eastern Daylight Time) at Embassy Suites by Hilton Parsippany, 909 Parsippany Blvd, Parsippany-Troy Hills, NJ 07054.

Purpose of the Special Meeting

At the special meeting, Pinnacle stockholders will be asked to consider and vote on the following proposals:

A copy of the merger agreement is attached as Annex A to this proxy statement/prospectus.

Record Date; Shares Entitled to Vote; Quorum

Stockholders of record as of the close of business on September 4, 2018, the record date for the special meeting, will be entitled to vote the shares of Pinnacle common stock that they held on the record date for the special meeting. At the close of business on the record date, there were 119,122,628 shares of Pinnacle common stock outstanding, held by approximately 17 holders of record. Each holder of shares of Pinnacle common stock is entitled to one vote per share of Pinnacle common stock held as of the record date on each of the proposals presented in this proxy statement.

A majority of the voting power of the issued and outstanding shares of capital stock of Pinnacle entitled to vote at the special meeting, present in person or represented by proxy, constitutes a quorum for the purposes of the special meeting. Abstentions are counted as present and entitled to vote for purposes of determining a quorum. Shares of Pinnacle common stock held in street name will be counted as present for the purpose of determining the existence of a quorum at the special meeting so long as a stockholder has given the bank, broker or other nominee voting instructions on at least one of the proposals brought before the special meeting. The proposals for consideration at the special meeting are considered “non-routine” matters under NYSE Rule 452, and, therefore, no broker non-votes can occur at the meeting. A stockholder’s shares will not be counted as present for the purpose of determining the existence of a quorum if no instructions have been provided on how to vote on any such proposals. A quorum is necessary to transact business at the special meeting. Once a share of Pinnacle common stock is represented at the special meeting, it will be counted for the purpose of determining a quorum at the special meeting and any adjournment of the special meeting, unless a new record date is required to be established. However, if a new record date is set for the adjourned special meeting, then a new quorum will have to be established. In the event that a quorum is not present at the special meeting, it is expected that the special meeting will be adjourned.

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Vote Required; Abstentions and Broker Non-Votes

Adoption of the Merger Agreement

The proposal to adopt the merger agreement must be approved by the affirmative vote of the holders of a majority of the outstanding shares of Pinnacle common stock entitled to vote thereon at the special meeting.

Abstentions will have the same effect as a vote “AGAINST” the merger agreement proposal.

Approval of the Nonbinding Compensation Proposal

Approval of the nonbinding compensation proposal requires the affirmative vote of the holders of a majority of those shares of Pinnacle common stock present in person or by proxy at the special meeting and entitled to vote thereon. The vote to approve the nonbinding compensation proposal is not a condition to the closing of the merger and the nonbinding compensation proposal is advisory in nature and will not be binding on Conagra or Pinnacle. Accordingly, regardless of the outcome of the vote on the nonbinding compensation proposal, if the merger agreement is adopted and the merger is completed, the merger-related compensation may be paid or become payable to Pinnacle’s named executive officers in connection with the merger.

Abstentions will have the same effect as a vote “AGAINST” the nonbinding compensation proposal.

Approval of the Adjournment Proposal

Approval of the adjournment proposal requires the affirmative vote of holders of a majority of those shares of Pinnacle common stock present in person or represented by proxy at the special meeting and entitled to vote thereon, regardless of whether a quorum is present. Unless the Pinnacle board fixes a new record date for the adjourned special meeting, the adjourned special meeting is more than 30 days after the date of the original special meeting, or law otherwise requires, no notice of the adjourned special meeting will be required so long as (i) the time and place to which the special meeting is adjourned, and the means of remote communications, if any, by which holders of Pinnacle common stock may be deemed to be present or represented by proxy and vote at such adjourned meeting are announced at the original special meeting and (ii) at the adjourned special meeting only such business is transacted as might have been transacted at the original special meeting.

Abstentions will have the same effect as a vote “AGAINST” a proposal to adjourn the special meeting.

Broker Non-Votes

Under NYSE rules, brokers who hold shares in “street name” for a beneficial owner of those shares typically have the authority to vote in their discretion on “routine” proposals when they have not received instructions from beneficial owners. However, brokers are not allowed to exercise their voting discretion with respect to the approval of proposals that NYSE determines to be “non-routine” and will not vote on such proposals if the broker has not received instructions from the beneficial owners on how to vote on the proposals. Under NYSE rules, brokers are not permitted to vote on any of the matters to be considered at the special meeting. As a result, your shares will not be voted on any matter unless you affirmatively instruct your bank, broker or other nominee how to vote your shares in one of the ways indicated by your bank, broker or other nominee.

Shares Held by Pinnacle’s Directors and Executive Officers

At the close of business on the record date, directors and executive officers of Pinnacle and their affiliates were entitled to vote approximately 1,540,772 shares of Pinnacle common stock, or approximately 1.29% of the shares of Pinnacle common stock outstanding on that date. Pinnacle’s directors and executive officers who hold shares of Pinnacle common stock have informed Pinnacle that they intend, as of the date hereof, to vote all of their shares of Pinnacle common stock in favor of each of the proposals to be considered at the special meeting, although none of them has entered into any agreement obligating them to do so.

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Pinnacle’s directors and executive officers have interests in the merger that may be different from, or in addition to, the interests of Pinnacle stockholders generally. For more information, please see the section titled “The Merger Agreement Proposal—Interests of Pinnacle’s Directors and Executive Officers in the Merger” contained in this proxy statement/prospectus.

Voting of Proxies

Voting in Person

All Pinnacle stockholders as of the record date may attend the special meeting and vote in person. Seating will be limited. Pinnacle stockholders will need to present proof of ownership of shares of Pinnacle common stock and proper photo identification, such as a driver’s license, to be admitted to the special meeting. If your shares of Pinnacle common stock are held through a broker, bank, trustee or other nominee, you will need to provide proof of ownership, such as a recent account statement or voting instructions form provided by your broker, bank, trustee or other nominee or other similar evidence of ownership, along with proper photo identification. If you are the representative of a corporate or institutional stockholder, you must present valid photo identification along with proof that you are the representative of such stockholder. No cameras, recording equipment, electronic devices, large bags, briefcases or packages will be permitted in the special meeting, except as administered by Pinnacle.

Shares Held by Record Holder

If you are a Pinnacle stockholder of record (that is, if your shares of Pinnacle common stock are registered in your name with Computershare Investor Services, Pinnacle’s transfer agent), you may submit a proxy using one of the methods described below:

A control number, located on your proxy card, is designed to verify your identity and allow you to vote your shares of Pinnacle common stock, and to confirm that your voting instructions have been properly recorded when voting by telephone or electronically over the Internet. Please be aware that, although there is no charge for voting your shares, if you vote by telephone or electronically over the Internet, you may incur costs such as internet access and telephone charges for which you will be responsible.

If you hold shares as the Pinnacle stockholder of record, your vote by written proxy must be received before the polls close at the special meeting and any electronic or telephonic vote must be received by 11:59 p.m. Eastern Daylight Time, on the day before the special meeting. If you hold shares beneficially in “street name” with a broker, bank, trustee or other nominee, please follow the voting instructions provided by your broker, bank, trustee or other nominee.

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Shares Held in “Street Name”

If your shares are held in “street name” through a broker, bank, trustee or other nominee, you may vote through your broker, bank, trustee or other nominee by completing and returning the voting form provided by your broker, bank, trustee or other nominee, or, if such a service is provided by your broker, bank, trustee or other nominee, by telephone or electronically over the Internet. To vote by telephone or over the Internet through your broker, bank, trustee or other nominee, you should follow the instructions on the voting instruction form provided by your broker, bank, trustee or other nominee.

Revocability of Proxies

Whether you have voted by Internet, telephone or mail, if you are a Pinnacle stockholder of record, you may change your vote and revoke your proxy by: (i) sending a written statement to that effect to Pinnacle’s corporate secretary or to any corporate officer of Pinnacle, provided such statement is received no later than October 22, 2018; (ii) voting again by Internet or telephone at a later time before the closing of those voting facilities at 11:59 p.m. (Eastern Daylight Time) on October 22, 2018; (iii) submitting a properly signed proxy card with a later date that is received no later than October 22, 2018; or (iv) voting at the special meeting.

If you hold shares in street name, you may submit new voting instructions by contacting your bank, broker or other nominee.

Recommendation of the Pinnacle Board

The Pinnacle board carefully reviewed and considered the terms and conditions of the merger agreement, the merger and the other transactions contemplated by the merger agreement. The Pinnacle board unanimously approved the merger agreement and declared in the best interest of the Pinnacle stockholders the acquisition of Pinnacle by Conagra by means of the merger and directed that the merger agreement be submitted to the Pinnacle stockholders for their adoption. Accordingly, the Pinnacle board unanimously recommends a vote “FOR” the proposal to approve the merger agreement. For a discussion of the factors that the Pinnacle board considered in determining to recommend the approval of the merger agreement, please see the section titled “The Merger Agreement Proposal—Recommendation of the Pinnacle Board and its Reasons for the Merger” contained in this proxy statement/prospectus.

The Board also recommends a vote “FOR” the nonbinding compensation proposal and a vote “FOR” the adjournment proposal.

Adjournments and Postponements

Although it is not currently expected, the special meeting may be adjourned, including for the purpose of soliciting additional proxies, if there are insufficient votes at the time of the special meeting to approve the proposal to adopt the merger agreement or if a quorum is not present at the special meeting.

Any adjournment of the special meeting requires the affirmative vote of holders of a majority of those shares of Pinnacle common stock present in person or represented by proxy at the special meeting and entitled to vote thereon, regardless of whether a quorum is present.

Any adjournment of the special meeting for the purpose of soliciting additional proxies will allow the Pinnacle stockholders who have already sent in their proxies to revoke them at any time prior to their use at the special meeting as adjourned.

Solicitation of Proxies

Conagra and Pinnacle will each bear their own costs related to the merger and the retention of any information agent or other service provider in connection with the merger, except for the expenses incurred in

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connection with the filing of this document, which will be paid by Conagra, and the expenses incurred in connection with the printing and mailing of this document, which will be paid by Pinnacle. This proxy solicitation is being made by Pinnacle on behalf of the Pinnacle board. Pinnacle has hired MacKenzie Partners, Inc., a proxy solicitation firm, to assist in the solicitation of proxies, and will pay MacKenzie Partners, Inc. a fee of approximately $15,000, plus certain costs associated with additional services, if required. In addition to this mailing, proxies may be solicited by MacKenzie Partners, Inc., directors, officers or employees of Pinnacle or Conagra or their respective affiliates in person, by mail, by telephone or by electronic transmission. None of the directors, officers or employees of Pinnacle or Conagra will be directly compensated for such services.

Questions and Additional Information

If you have any questions concerning the merger, the special meeting or the accompanying proxy statement/prospectus, would like additional copies of the accompanying proxy statement/prospectus or need help voting your shares of Pinnacle common stock, please contact Pinnacle’s proxy solicitor:

MacKenzie Partners, Inc.

1407 Broadway, 27th Floor

New York, NY 10018

Toll-free: (800) 322-2885 or (212) 929-5500

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THE MERGER AGREEMENT PROPOSAL

General

This proxy statement/prospectus is being provided to Pinnacle stockholders in connection with the solicitation of proxies by the Pinnacle board to be voted at the special meeting and at any adjournments or postponements of the special meeting. At the special meeting, Pinnacle will ask its stockholders to (1) vote “FOR” the adoption of the merger agreement proposal, (2) vote “FOR” the nonbinding compensation proposal, and (3) vote “FOR” the adjournment proposal.

The merger will not be completed without the adoption of the merger agreement by Pinnacle stockholders. A copy of the merger agreement is attached as Annex A to this proxy statement/prospectus. You are urged to read the merger agreement in its entirety because it is the legal document that governs the merger. For additional information about the merger agreement, see the section titled “The Merger Agreement” contained in this proxy statement/prospectus.

Effect of the Merger

Upon the closing of the merger, Merger Sub will merge with and into Pinnacle. Pinnacle will be the surviving corporation in the merger and will become a direct wholly owned subsidiary of Conagra.

At the effective time of the merger, each share of Pinnacle common stock issued and outstanding immediately prior to the effective time of the merger (other than excluded shares) will be converted into the right to receive (i) $43.11 in cash and (ii) 0.6494 shares of Conagra common stock. Conagra will not issue any fractional shares of Conagra common stock in the merger. Instead, a Pinnacle stockholder who otherwise would have received a fraction of a share of Conagra common stock will receive a cash payment, without interest, rounded down to the nearest whole cent, equal to such fractional amount multiplied by the average of the closing prices per share of Conagra common stock on NYSE for the ten full trading days ending on the second business day immediately preceding the date on which the effective time of the merger occurs. The exchange ratio is fixed and will not be adjusted to reflect stock price changes prior to the closing of the merger. Conagra stockholders will continue to hold their existing shares of Conagra common stock.

Effect on Pinnacle if the Merger Is Not Completed

If the merger agreement is not adopted or if the merger is not completed for any other reason, Pinnacle stockholders will not receive any payment for their shares of Pinnacle common stock. Instead, Pinnacle will remain an independent public company, shares of Pinnacle common stock will continue to be listed and traded on NYSE and registered under the Exchange Act and Pinnacle will continue to file periodic and current reports with the SEC. In addition, if the merger is not completed, Pinnacle expects that its management will operate the business in a manner similar to that in which it is being operated today and that stockholders will continue to be subject to the same risks and opportunities to which they are currently subject, including, among other things, the nature of the industry on which Pinnacle’s business largely depends, and general industry, economic, regulatory and market conditions.

Furthermore, if the merger is not completed, depending on the circumstances that caused the merger not to be completed, the price of Pinnacle common stock may decline significantly. If that were to occur, it is uncertain when, if ever, the price of Pinnacle common stock would return to the price at which it trades as of the date of this proxy statement/prospectus.

Accordingly, if the merger is not completed, there can be no assurance as to the effect of these risks and opportunities on the future value of your shares of Pinnacle common stock. If the merger is not completed, the Pinnacle board will continue to evaluate and review Pinnacle’s business operations, strategic direction and

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capitalization, among other things, and will make such changes as are deemed appropriate. If the merger agreement is not adopted or if the merger is not completed for any other reason, there can be no assurance that any other transaction acceptable to the Pinnacle board will be offered or that Pinnacle’s business, prospects or results of operation will not be adversely impacted.

If the merger agreement is terminated under certain circumstances, Pinnacle will be obligated to pay Conagra a break-up fee of $263,785,600. For more information, see the section titled “The Merger Agreement—Termination Fee; Liability for Breach” contained in this proxy statement/prospectus.

Merger Consideration

At the effective time of the merger, each share of Pinnacle common stock issued and outstanding immediately prior to the effective time of the merger (other than excluded shares) will be converted into the merger consideration, which is the right to receive (i) $43.11 in cash, without interest, and (ii) 0.6494 shares of Conagra common stock. Conagra will not issue any fractional shares of Conagra common stock in the merger. Instead, a Pinnacle stockholder who otherwise would have received a fraction of a share of Conagra common stock will receive a cash payment, without interest, rounded down to the nearest whole cent, equal to such fractional amount multiplied by the average of the closing prices per share of Conagra common stock on NYSE for the ten full trading days ending on the second business day immediately preceding the date on which the effective time of the merger occurs.

If the merger is completed, Pinnacle stockholders who do not vote in favor of the adoption of the merger agreement at the special meeting, who continuously hold their shares of Pinnacle common stock through the effective time and who properly demand appraisal of their shares of Pinnacle common stock in compliance with the requirements of Section 262 of the DGCL will be entitled to exercise appraisal rights in connection with the merger under Section 262 of the DGCL. This means that holders of shares of Pinnacle common stock who may exercise appraisal rights and who also have properly exercised, perfected and not waived, effectively withdrawn or otherwise lost those appraisal rights are entitled to have their shares of Pinnacle common stock appraised by the Delaware Court of Chancery and to receive payment in cash of the “fair value” of their shares of Pinnacle common stock, exclusive of any element of value arising from the accomplishment or expectation of the merger, together with interest (subject to certain exceptions) to be paid on the amount determined to be fair value, if any, as determined by the Delaware Court of Chancery, so long as those holders comply exactly with the procedures established by Section 262 of the DGCL. For additional information about appraisal rights, see the section titled “Appraisal Rights” contained in this proxy statement/prospectus and the text of Section 262 of the DGCL attached hereto as Annex D.

If, between the date of the merger agreement and the effective time of the merger, the issued and outstanding shares of Pinnacle common stock or securities convertible or exchangeable into or exercisable for shares of Pinnacle common stock or the issued and outstanding shares of Conagra common stock or securities convertible or exchangeable into or exercisable for shares of Conagra common stock changes into a different number of shares or a different class by reason of any reclassification, stock split (including a reverse stock split), stock dividend or distribution, recapitalization, merger, issuer tender or exchange offer, or other similar transaction, then the merger consideration will be equitably adjusted, without duplication, to proportionally reflect such change.

Based upon the closing sale price of shares of Conagra common stock on NYSE of $38.25 on September 14, 2018, the last practicable trading date prior to the date of this proxy statement/prospectus, the value of the merger consideration was approximately $67.95.

Background of the Merger

The Pinnacle board, together with Pinnacle’s management and with the assistance of Pinnacle’s advisors, regularly reviews Pinnacle’s long-term strategic plan and considers various strategic opportunities available to

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Pinnacle and ways to enhance stockholder value, including in light of the business, competitive, regulatory and economic environment and developments in the industry in which Pinnacle operates. These reviews have included discussions as to whether Pinnacle should continue to execute on its strategy as a stand-alone company, pursue various transformative acquisitions or pursue a sale of the entire company. As part of these reviews, the Pinnacle board, together with Pinnacle’s management and with the assistance of Pinnacle’s advisors, has considered what would offer the best avenue to enhance stockholder value along with the potential benefits and risks of any potential course of action.

The board of directors of Conagra (the “Conagra board”), together with Conagra’s management, and with the assistance of Conagra’s advisors, likewise regularly reviews, at various points, Conagra’s long-term strategic plan, competitive position in the industry in which it operates and strategic alternatives, including potential divestitures and spinoffs of non-core assets as well as potential mergers and acquisitions that would further Conagra’s strategic objectives. From time to time, the Conagra board and management with the assistance of Conagra’s advisors have reviewed a potential acquisition of Pinnacle, which was identified as an acquisition target on the basis of its complementary product offerings and culture, and its synergy possibilities. In late calendar year 2016, the Conagra board authorized Sean Connolly, Conagra’s Chief Executive Officer, to approach a representative of Pinnacle regarding a potential acquisition.

In late November 2016, Roger Deromedi, the Chairman of the Pinnacle board, met with Mr. Connolly in Chicago. Mr. Connolly asked Mr. Deromedi whether Pinnacle would be interested in receiving an offer from Conagra. Mr. Deromedi indicated that Mr. Connolly should discuss any potential offer with Mark Clouse, Pinnacle’s Chief Executive Officer. Mr. Connolly did not make an offer at this meeting or provide any details regarding any potential offer.

On January 11, 2017, Mr. Clouse, Craig Steeneck, Pinnacle’s Executive Vice President and Chief Financial Officer and Michael Levitt, Pinnacle’s Senior Vice President of Corporate Development, participated in a conference call with representatives of a food company (“Company A”) to express Pinnacle’s potential interest in acquiring a portfolio of significant assets from Company A. Company A indicated that it would be open to exploring such a potential transaction with Pinnacle.

Between January 2017 and March 2017, representatives of Pinnacle and Company A engaged in preliminary discussions with respect to a potential acquisition by Pinnacle of a portfolio of significant assets from Company A. Pinnacle and Company A identified that a transaction structure involving Pinnacle common shares as consideration could be a viable basis for a potential transaction to proceed. In March 2017, Pinnacle selected Morgan Stanley as Pinnacle’s financial advisor for the purpose of advising on a potential transaction with Company A.

During the first calendar quarter of 2017, Conagra, in conjunction with the Conagra board and Conagra’s financial advisors (Goldman Sachs and Centerview Partners), continued to consider a potential acquisition of Pinnacle. Conagra and the Conagra board considered, among other things, Pinnacle’s strategic fit with Conagra, Pinnacle’s financial performance and synergy potential, and Conagra’s other ongoing priorities, including with respect to capital allocation and portfolio adjustments. On March 10, 2017, Mr. Connolly contacted Mr. Clouse to inform him that Conagra had an offer to discuss with Pinnacle. Mr. Connolly and Mr. Clouse agreed to meet on March 20, 2017.

On March 20, 2017, Mr. Clouse and Mr. Connolly met in New Jersey, and Mr. Connolly delivered to Mr. Clouse an unsolicited non-binding written proposal from Conagra to acquire 100% of the outstanding equity of Pinnacle for $66.00 per share, consisting of 60% cash and 40% newly issued Conagra common stock. Mr. Clouse indicated that he would discuss Conagra’s proposal with the Pinnacle board.

On March 22, 2017, Pinnacle entered into a confidentiality agreement with Company A in order to facilitate continued conversations regarding a potential transaction. Pinnacle and Company A then began exchanging

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certain confidential information about Pinnacle’s business and the assets of Company A that were the subject of the potential transaction.

On March 23, 2017, Pinnacle held a special meeting of the Transaction Committee of the Pinnacle board (which was formed during the Pinnacle board meeting on December 6, 2016 to facilitate the Pinnacle board’s review of prospective merger and acquisition transactions, the “Transaction Committee”), with members of Pinnacle’s management, other directors on the Pinnacle board (which, together with the directors on the Transaction Committee, meant that a majority of the directors of the Pinnacle board were present at the meeting), representatives of its then-current financial advisor which had been engaged for the purpose of advising on potential unsolicited offers and representatives of Cravath, Swaine & Moore LLP (“Cravath”), Pinnacle’s legal advisor, participating. Representatives of Pinnacle’s financial advisor and members of Pinnacle’s management discussed with the Transaction Committee Pinnacle’s financial performance and management’s forecast. The Transaction Committee, with the assistance of representatives of Pinnacle’s financial advisor, members of Pinnacle’s management and the other directors of the Pinnacle board present at the meeting, also discussed and evaluated Conagra’s unsolicited proposal. After discussion, the Transaction Committee (including the other directors of the Pinnacle board present at the meeting) concluded that it would not be in the best interests of Pinnacle to pursue the proposal due to the fact that, among other things, the Transaction Committee believed that the proposal offered by Conagra significantly undervalued Pinnacle and that Pinnacle’s current stand-alone strategy (as well as incremental opportunities arising from potential acquisitions) would provide better growth opportunities for Pinnacle. The Transaction Committee (including the other directors of the Pinnacle board present at the meeting) approved sending a response letter, the draft of which was reviewed and discussed. Pinnacle’s management also discussed possible acquisitions, including a possible transaction with Company A to acquire a portfolio of significant assets from Company A, and a possible acquisition of a food manufacturer (“Company B”).

On March 27, 2017, Mr. Clouse sent Mr. Connolly a letter rejecting Conagra’s March 20, 2017 proposal on the basis that it significantly undervalued Pinnacle and its prospects and would not be in the best interests of Pinnacle and its stockholders.

On April 3, 2017, Mr. Connolly sent Mr. Clouse a letter acknowledging Mr. Clouse’s response, and there were no further discussions with Conagra during 2017.

Between March 2017 and late August 2017, Pinnacle and Company A continued to engage in discussions with respect to a potential acquisition by Pinnacle of a portfolio of significant assets from Company A. In connection with these discussions, on May 18, 2017 Pinnacle and Company A entered into an addendum to the confidentiality agreement providing for a customary one-year standstill provision that would automatically terminate upon either party’s entry into a definitive acquisition agreement with a third party or entry into a definitive acquisition agreement between Pinnacle and Company A. Members of Pinnacle’s management, with the assistance of representatives of Morgan Stanley reviewed with Mr. Deromedi on June 23, 2017 and with the Pinnacle board on August 16, 2017, among other things, the potential acquisition by Pinnacle of a portfolio of significant assets from Company A. In late August 2017, Pinnacle and Company A discontinued discussions with respect to the potential acquisition due to an inability to agree on the key terms of such a transaction.

During 2017, Pinnacle also pursued a number of other potential acquisitions in addition to a potential transaction with Company A. During the spring and summer of 2017, Pinnacle participated in an auction process to purchase Company B. At the same time, Pinnacle participated in an auction process to purchase a manufacturer of specialty food products (“Company C”). Pinnacle was unsuccessful in its bids to acquire Company B and Company C. In the late summer and early fall of 2017, Pinnacle and another manufacturer of specialty food products (“Company D”) engaged in negotiations with respect to a potential acquisition of Company D by Pinnacle. Later that fall, it became apparent that Pinnacle would not be able to reach an agreement with Company D to acquire it.

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On October 26, 2017, Mr. Levitt was contacted by the head of mergers and acquisitions of Company A to discuss re-engaging in conversations with respect to a potential transaction with Company A to acquire the previously discussed portfolio of significant assets from Company A. The representative of Company A provided Mr. Levitt with new information about potential synergies that could be achieved in connection with the potential acquisition and they discussed certain modified governance terms of such a transaction. The companies also discussed the possibility of entering into a term sheet. During November 2017, representatives of Pinnacle and Company A discussed potential elements for inclusion in the term sheet.

On November 21, 2017, Pinnacle held a special meeting of the Transaction Committee, with representatives of Morgan Stanley participating. Representatives of Pinnacle’s management, with the assistance of representatives of Morgan Stanley, discussed the re-engagement with Company A, including the draft term sheet which had been discussed by both companies’ legal and financial advisors and the potential risks or benefits of pursuing a transaction with Company A. After discussion, the Transaction Committee determined it was in the best interests of Pinnacle to continue to pursue such a transaction with Company A.

On November 29, 2017, representatives of Pinnacle’s management, representatives of Morgan Stanley and other outside advisors met with representatives of Company A’s management, representatives of Company A’s financial advisor and other outside advisors.

On November 30, 2017, Pinnacle and Company A executed a non-binding term sheet to purchase a portfolio of significant assets from Company A in a contemplated reverse-morris trust transaction. The non-binding term sheet included a short-term exclusivity provision restricting Pinnacle and Company A from soliciting offers for a possible sale of all or a substantial portion of the assets or capital stock of Pinnacle and such portfolio of significant assets of Company A.

On December 12, 2017, Company A notified Pinnacle that it was no longer interested in pursuing a transaction with Pinnacle regarding such portfolio of significant assets of Company A, citing complexity of the potential reverse-morris trust transaction, and that Company A was thereby terminating the term sheet. The short-term exclusivity provision in the term sheet ceased to be effective at that point.

Subsequent to its last formal communication with Pinnacle on April 3, 2017, Conagra continued to monitor Pinnacle’s performance. Management included Pinnacle as one of several potential acquisition opportunities in its discussions of strategic alternatives with the Conagra board. During a meeting of the Conagra board held on December 11 and 12, 2017, discussion of Pinnacle ensued. At this meeting, the Conagra board outlined the parameters under which Mr. Connolly was authorized to attempt to engage with Pinnacle on an oral basis, to determine whether Pinnacle would be receptive to receiving an acquisition proposal, and the Conagra board authorized Mr. Connolly to contact Pinnacle when the time seemed appropriate, given Conagra’s other priorities and initiatives.

In January 2018, following reports that certain activist investors had begun accumulating shares in Pinnacle, representatives of Pinnacle’s management initiated a process to select financial advisors in connection with evaluating strategic and financial alternatives, including transactions that could result in the sale of all or a substantial portion of the assets or capital stock of Pinnacle. At the conclusion of the process, Pinnacle selected Evercore and Credit Suisse for such roles.

On January 27, 2018, Mr. Clouse and Mr. Connolly were both attendees at a routine industry conference and Mr. Clouse approached Mr. Connolly for an unscheduled conversation. During the conversation, Mr. Clouse asked Mr. Connolly whether Conagra would be interested in exploring possible supply chain opportunities between Pinnacle and Conagra. Mr. Clouse and Mr. Connolly agreed to schedule a formal meeting to discuss potential supply chain opportunities.

On January 29, 2018, Mr. Levitt contacted representatives of Company A to discuss re-engaging in conversations with respect to a potential transaction for Pinnacle to acquire a revised portfolio of significant

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assets from Company A for cash, including the possibility of entering into a term sheet. Between January 29, 2018 and June 1, 2018, representatives of Pinnacle and Company A held a number of meetings and discussions regarding the terms of such a potential transaction.

A regular meeting of the Conagra board was held on February 21 and 22, 2018. During this meeting, Mr. Connolly provided the Conagra board with an update on Pinnacle’s recent financial performance, Mr. Clouse’s outreach regarding a potential supply chain partnership, management’s views on an acquisition of Pinnacle, management’s views on potential alternatives to an acquisition of Pinnacle and possible next steps. The Conagra board discussed these items with Conagra management, and advised Mr. Connolly of their support for him to receive information on Mr. Clouse’s concept of a supply chain partnership, but also on their continued support for his attempt to engage orally with Pinnacle to determine whether Pinnacle would be receptive to receiving an acquisition proposal. The Conagra board also discussed the availability and desirability of alternative strategic transactions.

On April 12, 2018, Mr. Clouse and Mr. Connolly telephonically discussed a potential supply chain partnership.

On April 17, 2018, Mr. Connolly called Mr. Clouse to inform him that Conagra was not interested in limiting the discussion to a potential supply chain partnership. Conagra believed that greater value creation was possible through a potential combination of the companies or, if Pinnacle was not interested, the other potential acquisition opportunities being considered by Conagra. Mr. Connolly advised Mr. Clouse that Conagra would be interested in potentially making an offer to acquire Pinnacle.

After the market closed on April 19, 2018, Jana Partners LLC (“Jana”) filed a Schedule 13D disclosing that Jana had acquired approximately 9.5% of Pinnacle’s shares. The filing also indicated that Jana planned to reach out to the Pinnacle board and management team to discuss certain measures to enhance Pinnacle’s value, including a potential sale. The filing noted that Jana historically maintained a constructive dialogue with Pinnacle and that Jana expected to continue its engagement with Pinnacle in such fashion. On the next trading day after Jana’s Schedule 13D filing, Pinnacle’s stock price increased approximately 10%.

On April 25, 2018, Mr. Clouse and Mr. Connolly spoke telephonically to discuss a potential offer by Conagra to acquire Pinnacle. During the discussion, no terms were discussed, but Mr. Clouse informed Mr. Connolly that if Conagra made a written offer to acquire Pinnacle, Mr. Clouse would discuss the offer with the Pinnacle board.

On May 3, 2018, Conagra held a meeting of the Conagra board, with members of Conagra senior management and representatives of its financial advisors participating, to discuss a potential business combination with Pinnacle. Members of Conagra senior management provided a preliminary overview of Pinnacle’s business and described the strategic opportunity presented by an acquisition of Pinnacle and the potential terms thereof. After discussion, the Conagra board authorized Conagra management to submit a written proposal to Pinnacle for the acquisition of 100% of Pinnacle’s outstanding equity in exchange for consideration consisting of 65% cash and 35% newly issued Conagra common stock.

On May 4, 2018, Conagra sent Pinnacle an unsolicited non-binding proposal to acquire 100% of the outstanding equity of Pinnacle for $66.00 per share, consisting of 65% cash and 35% newly issued Conagra common stock. The proposal indicated that the value represented a 20% premium to Pinnacle’s closing stock price on April 19, 2018 (the last trading day prior to the filing of the Schedule 13D by Jana).

On May 7, 2018, representatives of Pinnacle’s management, Mr. Deromedi and representatives of Jana met to discuss Pinnacle’s business and prospects.

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On May 10, 2018, Mr. Levitt contacted a representative of Company A to continue to discuss a potential transaction with Company A. During the discussion, Mr. Levitt inquired whether Company A would be interested in acquiring Pinnacle. During this conversation, the representative of Company A informed Mr. Levitt that Company A was likely not interested in acquiring Pinnacle because such an acquisition would not be a good strategic fit for Company A.

On May 11, 2018, Pinnacle held a special meeting of the Pinnacle board, with members of Pinnacle’s management, representatives of Evercore, Credit Suisse, who had been selected as Pinnacle’s financial advisors with respect to strategic alternatives, and representatives of Cravath, participating. Representatives of Cravath reviewed the directors’ fiduciary duties and other legal matters in connection with the Pinnacle board’s consideration of Conagra’s non-binding proposal and consideration of other alternatives. Members of Pinnacle’s management described the unsolicited non-binding proposal Pinnacle received from Conagra and reminded the Pinnacle board of the unsolicited non-binding proposal received from Conagra in March 2017, noting that the mix of consideration had changed from 60% cash and 40% newly issued Conagra common stock to 65% cash and 35% newly issued Conagra common stock. Representatives of Evercore and Credit Suisse also discussed Pinnacle’s financial performance, market conditions and Pinnacle’s management forecasts, including certain unaudited prospective financial information for the fiscal years 2018 through 2022 as part of the development of management’s strategic plan (the “2018 Initial Management Case”). Following discussion with members of Pinnacle’s management and representatives of Evercore and Credit Suisse, the Pinnacle board approved the 2018 Initial Management Case. The Pinnacle board, with the assistance of representatives of Evercore and Credit Suisse and members of Pinnacle’s management, also evaluated Conagra’s unsolicited proposal, including the impact of Conagra’s financial assumptions on Conagra’s valuation of Pinnacle, Conagra’s proposal price and the premium offered. The Pinnacle board, with the assistance of representatives of Evercore and Credit Suisse and members of Pinnacle’s management, also discussed the current increased competitive environment for Pinnacle and other food companies and pressures on stock prices and trading multiples as a result of the increasingly competitive environment, particularly in comparison to March 2017, the time of Conagra’s first unsolicited approach. The Pinnacle board, with the assistance of representatives of Evercore and Credit Suisse and members of Pinnacle’s management, also discussed its views that the operating environment for Pinnacle and other food companies had become more challenging since the prior year. After discussion, the Pinnacle board concluded that Conagra’s proposal was not a basis on which Pinnacle would be willing to pursue a strategic combination with Conagra, but that Pinnacle’s management should continue to engage with Conagra to determine whether Conagra would be willing to offer an improved price that reflected the value of Pinnacle. The Pinnacle board reviewed a response letter to Conagra, a draft of which had been circulated to the Pinnacle board prior to the meeting, with members of Pinnacle’s management and representatives of its legal and financial advisors, and following discussion approved sending the response letter to Conagra. Members of Pinnacle’s management also discussed possible acquisitions, including an update on Pinnacle’s continued discussions with Company A and a possible transaction with another food and beverage company (a company Messrs. Clouse, Steeneck and Levitt have each had regular conversations with over the years regarding Pinnacle’s interest in acquiring certain significant assets from them, “Company E”) . The Pinnacle board approved continued engagement with both Company A and Company E.

Following the meeting of the Pinnacle board, also on May 11, 2018, Pinnacle sent its response letter to Conagra rejecting Conagra’s May 4, 2018 proposal on the basis that it undervalued Pinnacle and its prospects and would not be in the best interests of Pinnacle and its stockholders, but indicating that Pinnacle would be prepared to review any future proposal at an increased value.

On May 12 and May 13, 2018, Mr. Clouse and Mr. Connolly discussed Pinnacle’s response letter by phone, and determined to meet in person to discuss certain aspects of Pinnacle’s business and potential synergy opportunities.

On May 15, 2018, Pinnacle and Conagra entered into a confidentiality agreement, which contained a customary mutual standstill provision that would automatically terminate upon either party’s entry into a

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definitive acquisition agreement with a third party or entry into a definitive acquisition agreement between Pinnacle and Conagra.

Also on May 15, Mr. Clouse met with the chief executive officer of Company E to discuss a potential acquisition of a portfolio of significant assets from Company E. Company E indicated that they were focused on other strategic alternatives and would not be able to pursue such a transaction with Pinnacle at that time. During this meeting, Mr. Clouse inquired as to Company E’s interest in acquiring Pinnacle. The chief executive officer of Company E indicated that such a transaction would likely not be consistent with Company E’s current strategic directives but asked Mr. Clouse to let him know if anything changed strategically with respect to Pinnacle in the near term.

On May 16, 2018, Mr. Clouse, Mr. Steeneck and other representatives of Pinnacle met in Chicago, Illinois, with Mr. Connolly, David Marberger, Conagra’s Chief Financial Officer, and other representatives of Conagra, to discuss Pinnacle’s business and potential synergy opportunities in a business combination. At the meeting, Mr. Clouse and Mr. Steeneck presented information about the strategic rationale for a potential transaction, Pinnacle’s products’ brand health and revenue and margin trajectory, as well as a description of potential transaction synergies. At the meeting, Mr. Connolly expressed urgency in determining whether the parties could agree on a price that could form a basis for proceeding with a transaction and indicated that Conagra was evaluating an alternative strategic option.

On May 17, 2018, Mr. Clouse and Mr. Connolly telephonically discussed the possibility that Conagra would provide a revised proposal to Pinnacle. Mr. Clouse requested that any such proposal be in writing.

On May 17 and 18, 2018, the Conagra board met. During its meeting, the Conagra board received a presentation from Conagra’s management regarding the status of the discussions with Pinnacle, the Pinnacle financial and operational information shared during the meeting of May 16, 2018, and a financial analysis for a transaction at an increased valuation. The Conagra board authorized the terms upon which management was to submit an updated non-binding proposal to Pinnacle.

On May 18, 2018, Pinnacle received a revised non-binding proposal from Conagra to acquire 100% of the outstanding equity of Pinnacle for a price of not less than $66.00 per share and not to exceed $68.00 per share, consisting of 65% cash and 35% newly issued Conagra common stock. The proposal indicated that the value represented a range of 20% to 23% premium to Pinnacle’s closing stock price on April 19, 2018 (the last trading day prior to the filing of the Schedule 13D by Jana). Conagra’s revised non-binding proposal included a deadline for Pinnacle to respond by 5:00 p.m. Central Time on May 22, 2018.

On May 21, 2018, Pinnacle held a special meeting of the Pinnacle board, with members of Pinnacle’s management, representatives of Evercore, Credit Suisse and Cravath, participating. Members of Pinnacle’s management described the revised non-binding proposal Pinnacle received from Conagra, as well as Mr. Clouse’s meeting with Company E and continued discussions with Company A. Representatives of Evercore and Credit Suisse also discussed market conditions, Pinnacle’s financial performance and the 2018 Initial Management Case, and potential transactions with Company A, Company E and Conagra’s revised proposal. Following this review, representatives of Evercore and Credit Suisse discussed potential strategic acquirors that may have interest in acquiring Pinnacle, including Company A, Company E and a number of other potential acquirors, focusing on the likely strategic fit, level of interest and financial capacity of each potential acquiror. Members of the Pinnacle board noted that, other than Conagra, there did not appear to be another potential acquiror well-positioned to pursue a transaction with Pinnacle at the time. There was also a discussion of the potential risks to Pinnacle, and to the status of the discussions with Conagra and Company A, arising from any leak resulting from communicating with such other potential acquirors. The Pinnacle board also noted the existence of widespread public speculation concerning a potential sale of Pinnacle, and the fact that other potential bidders had had substantial time and opportunity to approach Pinnacle if they were interested. Based on this discussion, the Pinnacle board concluded that Pinnacle should not approach any other party at that time other

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than Company A and Company E. The Pinnacle board, with the assistance of representatives of Evercore and Credit Suisse and members of Pinnacle’s management, also evaluated the other acquisition opportunities currently available to Pinnacle, including the potential transactions with Company A or Company E, and various considerations related to such opportunities, including timing and financing considerations and certain preliminary financial analyses. The Pinnacle board, with the assistance of representatives of Evercore and Credit Suisse and members of Pinnacle’s management, also evaluated Pinnacle’s prospects on a stand-alone basis, assuming that Pinnacle would not complete a transformative acquisition opportunity. The Pinnacle board, with the assistance of representatives of Evercore and Credit Suisse and members of Pinnacle’s management, also discussed the current increased competitive environment for other food companies and pressures on stock prices and trading multiples, including significant share price declines experienced from selected peers as a result of earnings and announced acquisitions. The Pinnacle board, with the assistance of representatives of Evercore and Credit Suisse and members of Pinnacle’s management, also discussed that both Pinnacle’s then-current stock price and Pinnacle’s stock price prior to the Schedule 13D filing by Jana on April 19, 2018 reflected market speculation of a potential acquisition of Pinnacle. The Pinnacle board also observed that such speculation was evidenced by selected Wall Street analyst price targets prior to April 19, 2018, which speculated a probability of a potential acquisition of Pinnacle and potential acquisition price, even before the Schedule 13D filing by Jana (which led to further market speculation of a potential acquisition of Pinnacle). After discussion, the Pinnacle board concluded that Conagra’s updated proposal was not a basis on which the Pinnacle board would be willing to pursue a strategic combination with Conagra, as the proposed lower end of the range of Conagra’s proposal remained at $66.00 per share. The Pinnacle board further determined that Pinnacle’s management should continue to engage with Conagra to determine whether Conagra would be willing to offer a higher price. The members of the Pinnacle board authorized Pinnacle’s management to reply verbally to Conagra’s updated proposal with an indication that an offer price below $68.00 per share would not provide a basis for a deal with Conagra, and to seek the best achievable price at $68.00 per share or above. The Pinnacle board also approved continuing discussions with Company A regarding a potential transaction to acquire a portfolio of significant assets from Company A.

Thereafter, on May 21, 2018, Company A and Pinnacle entered into a non-binding term sheet to purchase a portfolio of significant assets from Company A for cash. Pinnacle was not subject to any exclusivity provisions, although Company A indicated a June 1 deadline to discuss whether Pinnacle was prepared to engage on an exclusive basis.

On May 22, 2018, Mr. Clouse and Mr. Connolly telephonically discussed Conagra’s May 18, 2018 revised non-binding proposal by phone. During the call, Mr. Clouse delivered the message that had been approved by the Pinnacle board. After further discussion, Mr. Connolly then agreed to revise Conagra’s non-binding proposal to reflect a price of $68.00 per share, indicating that Conagra was not prepared to pay a higher price.

On May 23, 2018, Pinnacle received a revised non-binding proposal from Conagra to acquire 100% of the outstanding equity of Pinnacle for a price of $68.00 per share, consisting of 65% cash and 35% newly issued Conagra common stock. Mr. Clouse then called Mr. Connolly to discuss this revised proposal, and Mr. Clouse and Mr. Connolly agreed to proceed with due diligence and negotiations of definitive documentation for a transaction on the basis of the May 23, 2018 revised non-binding proposal.

On May 24, 2018, Mr. Clouse and Mr. Connolly telephonically discussed the potential timing for a transaction. During the discussion, Mr. Connolly informed Mr. Clouse that Conagra’s preferred timing would be to announce a transaction concurrently with the release of Conagra’s operating results for the fourth quarter of fiscal 2018, then planned for June 28, 2018.

On May 30, 2018, Pinnacle held a regular meeting of the Pinnacle board, with members of Pinnacle’s management, representatives of Evercore, Credit Suisse, and Cravath participating. Members of Pinnacle’s management discussed the revised proposal from Conagra and subsequent discussions with Mr. Connolly. The Pinnacle board, with the assistance of representatives of Evercore and Credit Suisse, representatives of Cravath

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and members of Pinnacle’s management, also discussed the potential transaction structure and process, and whether to conduct outreach to other companies. After discussion, the Pinnacle board concluded that Pinnacle’s management should contact Company E to determine if Company E might be interested in a transaction with Pinnacle. The Pinnacle board, with the assistance of representatives of Evercore and Credit Suisse, also reviewed an update on the potential acquisition opportunity for a portfolio of significant assets of Company A, noting Company A’s deadline of June 1, 2018 for Pinnacle to agree to negotiate a strategic transaction with Company A on an exclusive basis. Following discussion, the Pinnacle board determined that Pinnacle should end discussions with Company A regarding the potential acquisition transaction, and at any appropriate stage, reconfirm whether Company A continued to have no interest in pursuing a transaction to acquire Pinnacle. Representatives of Pinnacle’s management also reviewed with the Pinnacle board Pinnacle’s revised management forecast, which had been updated following completion of the first fiscal quarter of 2018 as was consistent with Pinnacle’s ordinary course review. Because the initial management forecast formed the basis of the 2018 Initial Management Case, which had been previously reviewed with and approved by the Pinnacle board, the Pinnacle board determined that the 2018 Initial Management Case should be updated to reflect the revised management forecast. As described in the section titled “Certain Pinnacle Unaudited Management Financial Forecasts”, the 2018 Modified Management Case reflected such update. The Pinnacle board also reviewed disclosure provided by Evercore and Credit Suisse regarding relationships between Evercore and Credit Suisse, as applicable, and each of Conagra and Pinnacle and determined that, based on the information provided by Evercore and Credit Suisse, as applicable, those relationships would not impair the ability of Evercore and Credit Suisse, respectively, to provide the Pinnacle board with objective advice.

Also on May 30, 2018, to facilitate Conagra’s due diligence process, Pinnacle provided access to an electronic data room responsive to a due diligence request list received by Jones Day, legal advisor to Conagra. The electronic data room included a copy of the 2018 Modified Management Case for the fiscal years 2018 through 2020 only.

Additionally, on May 30, 2018, Jones Day provided Cravath with a draft clean team agreement and an initial draft of the merger agreement. The draft merger agreement contained several provisions that would be unfavorable to Pinnacle and its stockholders, including (i) no requirement for Conagra to make any divestitures or commit to other remedies if necessary in order to obtain antitrust approval, (ii) no ability of the Pinnacle board to change its recommendation in favor of the merger in the absence of a superior proposal, (iii) no ability for Pinnacle to terminate the merger agreement in order to enter into a superior proposal and (iv) a “naked no vote fee” payable by Pinnacle to Conagra in the event that Pinnacle’s stockholders failed to approve the merger in the absence of a superior proposal. The draft merger agreement also specified that a fee would be payable if the Pinnacle board changed its recommendation of the transaction but did not specify the amount. From May 30 until June 25, 2018, representatives of Pinnacle, Cravath, Conagra and Jones Day held numerous discussions and engaged in negotiations regarding the terms of the merger agreement.

On June 1, 2018, Mr. Levitt called a representative of Company A to inform him that Pinnacle was no longer in a position to move forward with the potential transaction to purchase the previously discussed portfolio of significant assets from Company A.

On June 3, 2018, Pinnacle and Conagra entered into a clean team confidentiality agreement to cover certain competitively sensitive confidential information to be exchanged between Pinnacle and Conagra (and their respective advisors).

On June 4, 2018, Mr. Clouse and Mr. Connolly discussed via telephone the diligence process and the status of the potential transaction.

On June 5, 2018, Cravath returned a revised draft of the merger agreement to Jones Day. The revised draft contemplated, among other things, that (i) Conagra would make a more substantial commitment to take actions necessary to obtain antitrust approval, (ii) the Pinnacle board would be permitted to change its recommendation

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in favor of the merger in the absence of a superior proposal if the failure to make such a change would be inconsistent with the directors’ exercise of their fiduciary duties, (iii) Pinnacle would be permitted to terminate the merger agreement in order to enter into a superior proposal, (iv) there would be no requirement for Pinnacle to pay a “naked no vote fee” and (v) a proposed termination fee equal to two percent of Pinnacle’s equity value if the Pinnacle board changed its recommendation or terminated the merger agreement to accept an alternative proposal.

On June 7, 2018, to facilitate Pinnacle’s reverse due diligence process, Conagra provided access for Pinnacle and its advisors to an electronic data room responsive to a reverse due diligence request list received by Cravath.

Also on June 8, 2018, Mr. Clouse contacted the chief executive officer of Company E to discuss whether Company E had any interest in accelerating consideration of a potential transaction with Pinnacle. The chief executive officer of Company E indicated that Company E would discuss internally and get back to Mr. Clouse.

On June 12, 2018, Mr. Clouse, Mr. Steeneck and other representatives of Pinnacle met with Mr. Connolly, Mr. Marberger and other representatives of Conagra in New Jersey to provide them with a Pinnacle management presentation, including an overview of Pinnacle’s business, strategic plan, product pipeline, estimated operating results for the 2018 fiscal year and potential synergies and cost savings to be achieved in connection with a potential transaction.

On June 14, 2018, Jones Day provided Cravath with a revised draft of the merger agreement. The revised draft merger agreement contained several provisions that would be unfavorable to Pinnacle and its stockholders, including (i) no requirement for Conagra to make any divestitures or commit to other structural remedies if necessary in order to obtain antitrust approval above an unidentified threshold, (ii) no ability of the Pinnacle board to change its recommendation in favor of the merger in the absence of a superior proposal, (iii) a “naked no vote fee” payable by Pinnacle to Conagra in the event that Pinnacle’s stockholders failed to approve the merger in the absence of a superior proposal and (iv) a termination fee equal to four percent of Pinnacle’s equity value, payable in certain circumstances in which the Pinnacle board changed its recommendation or entered into an alternative agreement. Further, the representatives of Jones Day conveyed to Cravath that Conagra would be making a counter-proposal on the antitrust commitment standard within the next few days. The revised draft merger agreement included the right for Pinnacle to terminate the merger agreement in order to enter into a superior proposal.

Also on June 14, the chief executive officer of Company E contacted Mr. Clouse and informed him that Company E would not be able to pursue a sale transaction of the previously discussed portfolio of significant assets to Pinnacle at that time and was not interested in pursuing a potential transaction to acquire Pinnacle.

On June 16, 2018, Mr. Clouse and Mr. Connolly telephonically discussed the status of the potential transaction, including the parties’ respective antitrust analyses, various employee-related issues in the merger agreement, the calculation of the exchange ratio, the reverse due diligence workstream and transaction timing. Mr. Connolly emphasized to Mr. Clouse that the results for Conagra’s fourth fiscal quarter, which were to be presented to Pinnacle during a meeting on June 19, 2018 and announced publicly on June 28, 2018, would be positive and could lead to an increase in Conagra’s stock price, implying a lower exchange ratio than Pinnacle might be willing to accept. Accordingly, Mr. Clouse and Mr. Connolly reaffirmed their willingness to work toward entering into a definitive agreement prior to June 28, 2018.

On June 18, 2018, Cravath returned a revised draft of the merger agreement to Jones Day. The revised draft contemplated, among other things, (i) no requirement for Conagra to make any divestitures or commit to other structural remedies above an unidentified threshold if necessary in order to obtain antitrust approval, (ii) no ability of the Pinnacle board to change its recommendation in favor of the merger in the absence of a superior proposal unless there occurred an unanticipated “intervening event”, (iii) there would be no requirement for Pinnacle to pay a “naked no vote fee” and (iv) that the size of termination fee would be discussed.

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On June 19, 2018, representatives of Pinnacle, Conagra, Cravath and Jones Day met in Chicago. At the meeting, representatives of Conagra gave a Conagra management presentation providing an overview of Conagra’s business, strategy, growth opportunities, operating results for the fourth fiscal quarter and 2018 fiscal year and guidance as to certain key financial metrics for Conagra’s 2019 fiscal year prepared by the management of Conagra (the “Conagra Guidance”), which guidance was consistent in all material respects with the guidance contained in Conagra’s earnings release issued on June 27, 2018, and a review of the likely amount of deal synergies Conagra was planning to announce. Following the meeting, Mr. Clouse and Mr. Connolly met one-on-one to discuss some of the open issues in the merger agreement, including the methodology for setting the exchange ratio, the antitrust commitment standard, the size of the termination fee, the inclusion of a “naked no vote fee” and certain employee-related issues. Later that day, Mr. Connolly called Mr. Clouse to inform him, among other things, that Conagra would drop its request for a “naked no vote fee” and would reduce its requested termination fee to 3.3% of Pinnacle’s equity value. Representatives of Conagra and Pinnacle, together with their legal counsel, separately discussed and resolved certain other open items such as the right of the Pinnacle board to change its recommendation if certain “intervening events” occurred.

Also on June 19, at Pinnacle’s request, representatives of Evercore, Pinnacle’s financial advisor, contacted representatives of Company A to determine whether Company A had any interest in acquiring Pinnacle. The representatives of Company A confirmed that Company A was not interested in acquiring Pinnacle because such an acquisition would not be a good strategic fit for Company A at the current valuation levels.

On June 20, 2018, Pinnacle held a meeting of the Pinnacle board, with members of Pinnacle’s management, representatives of Evercore, Credit Suisse and Cravath participating. At the meeting, Mr. Clouse updated the Pinnacle board on the status of the discussions with Conagra, including the methodology for setting the exchange ratio, the antitrust commitment standard, the amount of the termination fee and certain employee-related issues. Representatives of Cravath reviewed with the Pinnacle board certain open terms in the draft merger agreement. Members of Pinnacle’s management, with the assistance of representatives of Evercore and Credit Suisse, discussed with the Pinnacle board their views as to various methodologies for setting the exchange ratio. After discussion, the Pinnacle board concluded that it would be in the best interest of Pinnacle and its stockholders to proceed with finalizing the acquisition of Pinnacle by Conagra, subject to satisfactory resolution of the remaining open business issues.

On June 20 and June 21, 2018, Conagra and Pinnacle exchanged high level summaries of open issues and their respective positions on such open issues, including the methodology for setting the exchange ratio, the antitrust commitment standard and certain employee-related issues. As of the end of June 21, 2018, the parties continued to be in disagreement with respect to the amount of certain of these items, and Conagra cancelled the meeting of its board that had been scheduled for June 22, 2018.

On June 22, 2018, representatives of Conagra and Pinnacle re-engaged with respect to the remaining open items in the transaction and reached resolution on several significant items, including those relating to the antitrust divestiture threshold, and gained closer alignment on the methodology for determining the exchange ratio. Conagra rescheduled the Conagra board call for June 24, 2018, and Mr. Connolly and Mr. Clouse discussed moving up the expected transaction announcement date from June 28, 2018 to June 27, 2018, which they concluded would be in the parties’ mutual interest.

On June 23, 2018, Jones Day provided Cravath with a revised draft of the merger agreement, which reflected the resolution of the business issues that had been resolved over the previous few days, with the exception of the final methodology for setting the exchange ratio and a small number of primarily employment-related issues, which remained open issues. Between June 23 and June 26, 2018, the parties and their advisors continued to negotiate these remaining open issues in the merger agreement.

On June 24, 2018, the Conagra board met with representatives of Conagra management, Conagra’s financial advisors and Jones Day to discuss the status of the discussions with Pinnacle, the financial terms of the transaction, including potential methodologies to calculate the exchange ratio, the legal terms of the transaction,

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including the extent of Conagra’s commitment to obtain antitrust approvals and certain open terms in the merger agreement and the process for raising the consideration necessary to close the transaction. The Conagra board also discussed the go-forward economics and capital structure of Conagra, including potential effects on credit ratings and the various risks presented by the transaction and related capital-raising activities. Representatives of Jones Day reviewed with the Conagra board their applicable fiduciary duties. After discussion with, and input from, members of management and the advisors, the Conagra board authorized senior management to proceed with finalizing the agreement, subject to the satisfactory resolution of open issues.

Separately on June 24, 2018, Mr. Connolly called Mr. Clouse to propose a modest change to the consideration mix between cash and Conagra common stock from the 65% / 35% (respectively) mix included in Conagra’s May 23, 2018 proposal. Mr. Connolly conveyed that based on feedback from certain credit rating agencies, it would be beneficial to the credit rating of the combined company to increase the proportion of stock consideration.

On June 25, 2018, after discussion, representatives of Conagra and Pinnacle agreed to change the mix of merger consideration to 63.4% cash and 36.6% Conagra common stock, with the exchange ratio to be set based on the volume-weighted average price of Conagra common stock for the five consecutive trading days ending June 21, 2018 on NYSE, and to finalize the remaining open issues.

On June 25, 2018, Pinnacle held a meeting of the Pinnacle board, with members of Pinnacle’s management, representatives of Evercore, Credit Suisse and Cravath participating. At the meeting, Mr. Clouse updated the Pinnacle board on the status of the discussions with Conagra, including Conagra’s proposals regarding the methodology for setting the exchange ratio and the mix of stock and cash consideration. Representatives of Cravath reviewed with the Pinnacle board the terms of the proposed merger agreement. Representatives of Evercore and Credit Suisse discussed with the Pinnacle board their respective preliminary financial analyses of Pinnacle and the proposed transaction with Conagra. There was also a report of the final contacts with Company A and Company E, with no responsive interest. After discussion, the Pinnacle board concluded that it would be in the best interest of Pinnacle and its stockholders to proceed with finalizing the acquisition of Pinnacle by Conagra. The Pinnacle board also reviewed updated disclosure provided by Evercore and Credit Suisse regarding relationships between Evercore and Credit Suisse, as applicable, and each of Conagra and Pinnacle and determined that, based on the information provided by Evercore and Credit Suisse, as applicable, those relationships would not impair the ability of Evercore and Credit Suisse, respectively, to provide the Pinnacle board with objective advice.

On June 26, 2018, Pinnacle held a meeting of the Pinnacle board to review and approve the proposed merger with Conagra, with members of Pinnacle’s management, representatives of Evercore, Credit Suisse and Cravath participating. At the meeting, Mr. Clouse updated the Pinnacle board on the resolution of certain outstanding issues, including the final exchange ratio and the final mix of cash and stock consideration. Representatives of Cravath reviewed with the Pinnacle board the changes to the terms of the proposed merger agreement since the prior day. Representatives of Evercore then reviewed and discussed with the Pinnacle board their updated financial analyses with respect to Pinnacle and the proposed merger with Conagra, based on the final merger consideration. Thereafter, at the request of the Pinnacle board, Evercore rendered its oral opinion to the Pinnacle board (which was subsequently confirmed in writing by delivery of Evercore’s written opinion dated the same date) as to, as of June 26, 2018, the fairness of the merger consideration, from a financial point of view, to the holders of Pinnacle common stock entitled to receive such merger consideration. Representatives of Credit Suisse then reviewed and discussed with the Pinnacle board its updated financial analyses with respect to Pinnacle and the proposed merger with Conagra. Thereafter, at the request of the Pinnacle board, Credit Suisse rendered its oral opinion to the Pinnacle board (which was subsequently confirmed in writing by delivery of Credit Suisse’s written opinion to the Pinnacle board dated the same date) as to, as of June 26, 2018, the fairness, from a financial point of view, to the holders of Pinnacle common stock other than the excluded holders of the merger consideration to be received by such holders in the merger pursuant to the merger agreement. After discussion, the Pinnacle board unanimously approved the merger agreement and authorized the execution and delivery of the merger agreement by Pinnacle.

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Later that evening, the Conagra board held a meeting with members of Conagra’s senior management and representatives of Conagra’s financial advisors and Jones Day. With the assistance of Conagra management and the representatives of the Conagra board’s financial and legal advisors, the Conagra board reviewed the final terms and conditions of the merger agreement and the proposed transactions. Following discussion, the Conagra board unanimously approved and declared advisable the merger agreement and the transaction that it contemplates and authorized the execution and delivery of the merger agreement by Conagra.

Following the meetings of the Pinnacle board and the Conagra board, Pinnacle and Conagra executed the merger agreement.

On June 27, 2018, Pinnacle and Conagra issued a joint press release announcing the transaction and their execution of the merger agreement.

Also on June 27, 2018, Jana amended its Schedule 13D filing to applaud the Pinnacle board for their recent steps to realize value for Pinnacle stockholders.

Recommendation of the Pinnacle Board and its Reasons for the Merger

At the special meeting of the Pinnacle board on June 26, 2018, after careful consideration, including detailed discussions with Pinnacle’s management and its legal and financial advisors, the Pinnacle board unanimously:

As described above in the section titled “—Background of the Merger”, prior to and in reaching its determination, the Pinnacle board consulted with and received the advice of its financial advisors and outside counsel, discussed certain issues with Pinnacle’s management and considered a variety of factors weighing positively in favor of the merger, including the following material factors:

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In the course of its deliberations, the Pinnacle board also considered a variety of risks and other countervailing factors related to the merger agreement and the merger, including the following material factors:

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In addition, the Pinnacle board was aware of and considered the fact that Pinnacle’s executive officers have financial interests in the merger that may be different from, or in addition to, those of Pinnacle stockholders generally, including those interests that are a result of employment and compensation arrangements with Pinnacle, as described more fully below in the section titled “—Interests of Pinnacle’s Directors and Executive Officers in the Merger”.

The foregoing discussion of the factors considered by the Pinnacle board is not intended to be exhaustive, but rather includes the material factors considered by the Pinnacle board. The Pinnacle board collectively reached the conclusion to adopt the merger agreement and recommend that the holders of Pinnacle common stock vote their Pinnacle common stock to adopt the merger agreement, in light of the various factors described above and other factors that the members of the Pinnacle board believed were appropriate. In view of the wide variety of factors considered by the Pinnacle board in connection with its evaluation of the merger and the complexity of these matters, the Pinnacle board did not consider it practical, and did not attempt, to quantify, rank or otherwise assign relative weights to the specific factors it considered in reaching its decision and did not undertake to make any specific determination as to whether any particular factor, or any aspect of any particular factor, was favorable or unfavorable to the ultimate determination of the Pinnacle board. Rather, the Pinnacle board made its recommendation based on the totality of the information available to it, including discussions with, and questioning of, Pinnacle’s management and its financial and legal advisors. In considering the factors discussed above, individual members of the Pinnacle board may have given different weights to different factors.

This explanation of the Pinnacle board’s reasons for recommending the approval of the merger agreement and other information presented in this section is forward-looking in nature and, therefore, should be read in light of the factors described in the section titled “Cautionary Information Regarding Forward-Looking Statements” contained in this proxy statement/prospectus.

Opinions of Pinnacle’s Financial Advisors

Opinion of Pinnacle’s Financial Advisor—Evercore Group L.L.C.

At a meeting of the Pinnacle board held on June 26, 2018, Evercore rendered to the Pinnacle board its oral opinion, subsequently confirmed in writing, that as of June 26, 2018 and based upon and subject to the assumptions, limitations, qualifications and conditions described in Evercore’s written opinion, the merger consideration per share of Pinnacle common stock consisting of $43.11 in cash without interest and 0.6494 of a share of Conagra common stock was fair, from a financial point of view, to the holders of shares of Pinnacle common stock entitled to receive such merger consideration.

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The full text of the written opinion of Evercore, dated as of June 26, 2018, which sets forth, among other things, the procedures followed, assumptions made, matters considered and qualifications and limitations on the scope of review undertaken in rendering its opinion, is attached as Annex B to this proxy statement and is incorporated by reference in its entirety into this proxy statement. You are urged to read this opinion carefully and in its entirety. Evercore’s opinion was addressed to, and provided for the information and benefit of, the Pinnacle board in connection with its evaluation of the proposed merger. The opinion does not constitute a recommendation to the Pinnacle board or to any other persons in respect of the proposed merger, including as to how any holder of shares of Pinnacle common stock should vote or act in respect of the proposed merger. Evercore’s opinion does not address the relative merits of the proposed merger as compared to other business or financial strategies that might be available to Pinnacle, nor does it address the underlying business decision of Pinnacle to engage in the proposed merger.

In connection with rendering its opinion Evercore, among other things:

For purposes of its analysis and opinion, Evercore assumed and relied upon, without undertaking any independent verification of, the accuracy and completeness of all of the information publicly available, and all of the information supplied or otherwise made available to, discussed with, or reviewed by Evercore, and Evercore assumed no liability therefor. With respect to the 2018 Management Case, the Conagra Guidance and the Expected Synergies, Evercore assumed that they were reasonably prepared on bases reflecting the best currently

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available estimates and good faith judgments of, with respect to the 2018 Management Case and the Expected Synergies, Pinnacle’s management and, with respect to the Conagra Guidance and the Expected Synergies, management of Conagra, as to the future financial performance of Pinnacle and Conagra, as applicable, and the Expected Synergies. Evercore expressed no view as to the 2018 Management Case, or the Conagra Guidance or the Expected Synergies or the assumptions on which they were based.

For purposes of rendering its opinion, Evercore assumed, in all respects material to its analysis, that the representations and warranties of each party contained in the merger agreement were true and correct, that each party would perform all of the covenants and agreements required to be performed by it under the merger agreement and that all conditions to the closing of the proposed merger would be satisfied without material waiver or modification thereof. Evercore further assumed that all governmental, regulatory or other consents, approvals or releases necessary for the closing of the proposed merger would be obtained without any material delay, limitation, restriction or condition that would have an adverse effect on Pinnacle or the closing of the proposed merger or materially reduce the benefits to the holders of shares of Pinnacle common stock of the proposed merger.

Evercore did not make or assume any responsibility for making any independent valuation or appraisal of the assets or liabilities of Pinnacle or Conagra, nor was Evercore furnished with any such valuations or appraisals, nor did Evercore evaluate the solvency or fair value of Pinnacle or Conagra under any state or federal laws relating to bankruptcy, insolvency or similar matters. Evercore’s opinion is necessarily based upon information made available to Evercore as of June 26, 2018, and financial, economic, market and other conditions as they existed and as could be evaluated as of that date. Subsequent developments may affect Evercore’s opinion and Evercore does not have any obligation to update, revise or reaffirm its opinion.

Evercore was not asked to pass upon, and expressed no opinion with respect to, any matter other than the fairness to the holders of shares of Pinnacle common stock, from a financial point of view, of the merger consideration. Evercore did not express any view on, and its opinion does not address, the fairness of the proposed merger to, or any consideration received in connection therewith by, the holders of any other securities, creditors or other constituencies of Pinnacle, nor as to the fairness of the amount or nature of any compensation to be paid or payable to any of the officers, directors or employees of Pinnacle, or any class of such persons, whether relative to the merger consideration or otherwise. Evercore assumed that any modification to the structure of the merger would not vary in any respect material to its analysis. Evercore’s opinion does not address the relative merits of the merger as compared to other business or financial strategies that might be available to Pinnacle, nor does it address the underlying business decision of Pinnacle to engage in the proposed merger. In arriving at its opinion, Evercore was not authorized to solicit, and did not solicit, interest from any third party with respect to the acquisition of any or all of Pinnacle’s common stock or any business combination or other extraordinary transaction involving Pinnacle. Evercore’s opinion does not constitute a recommendation to the Pinnacle board or to any other persons in respect of the proposed merger, including as to how any holder of shares of Pinnacle common stock should vote or act in respect of the proposed merger. Evercore expresses no opinion as to the price at which shares of Pinnacle common stock or Conagra common stock will trade at any time. Evercore is not a legal, regulatory, accounting or tax expert and has assumed the accuracy and completeness of assessments by Pinnacle and its advisors with respect to legal, regulatory, accounting and tax matters.

Set forth below is a summary of the material financial analyses reviewed by Evercore with the Pinnacle board on June 26, 2018, in connection with rendering its opinion. The following summary, however, does not purport to be a complete description of the analyses performed by Evercore. The order of the analyses described and the results of these analyses do not represent relative importance or weight given to these analyses by Evercore. Except as otherwise noted, the following quantitative information, to the extent that it is based on market data, is based on market data that existed on or before June 25, 2018, and is not necessarily indicative of current market conditions.

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The following summary of Evercore’s financial analyses includes information presented in tabular format. In order to fully understand the analyses, the tables must be read together with the full text of each summary. The tables are not intended to stand-alone and alone do not constitute a complete description of Evercore’s financial analyses. Considering the tables below without considering the full narrative description of Evercore’s financial analyses, including the methodologies and assumptions underlying such analyses, could create a misleading or incomplete view of such analyses.

Summary of Evercore’s Financial Analysis

Selected Public Company Trading Analysis

Evercore reviewed and compared certain financial information regarding Pinnacle to corresponding financial multiples and ratios for the following selected publicly traded companies in the packaged food industry (the “selected companies”):

Although none of the selected companies is directly comparable to Pinnacle, Evercore selected these companies based on its professional judgment because they are packaged food companies with business characteristics that for purposes of its analysis Evercore considered similar to the business characteristics of Pinnacle.

Evercore also reviewed financial multiples and ratios for the following additional publicly traded companies in the packaged food industry (the “additional selected companies”):

Although none of additional selected companies is directly comparable to Pinnacle, Evercore selected these additional companies based on its professional judgment because they are packaged food companies with business characteristics that for purposes of its analysis Evercore considered in some respects similar to the business characteristics of Pinnacle, but less similar than the selected companies listed above.

For Pinnacle and each of the selected companies and the additional selected companies identified above, Evercore calculated enterprise value (defined as equity market capitalization plus total debt, plus preferred equity and noncontrolling interest, less cash and cash equivalents) as a multiple of estimated earnings before interest, taxes, depreciation and amortization (“EBITDA”) for calendar years 2018 and 2019 derived from equity research analysts’ estimates for each company for calendar years 2018 and 2019. Evercore calculated the enterprise value of each company based on its closing share prices as of June 25, 2018 (and also, in the case of Pinnacle, as of April 19, 2018, the last trading day prior to the filing of Schedule 13D by Jana Partners announcing an approximately 9.5% beneficial ownership position in Pinnacle) and financial data regarding each company’s total debt, preferred equity, noncontrolling interest, cash and cash equivalents as reflected in the most recent filings made by such company with the SEC. With respect to General Mills, Inc., total debt was calculated to take into account debt General Mills incurred in connection with its recent acquisition of Blue Buffalo Pet Products, Inc.

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For Pinnacle and each of the selected companies and the additional selected companies, Evercore also calculated the closing share prices as of June 25, 2018 (and also, in the case of Pinnacle, as of April 19, 2018) as a multiple of estimated earnings per share (“EPS”) for calendar years 2018 and 2019 obtained from equity research analysts’ consensus estimates for 2018 and 2019 obtained from FactSet.

The results of these calculations were as follows: