Filed Pursuant to Rule 424(b)(3)
Registration No. 333-228829

MERGER PROPOSAL—YOUR VOTE IS VERY IMPORTANT

On October 12, 2018, Harris Corporation, which is referred to as Harris, and L3 Technologies, Inc., which is referred to as L3, entered into an Agreement and Plan of Merger, as it may be amended from time to time, which is referred to as the merger agreement, pursuant to which they agreed to combine their respective businesses in a merger of equals. The combined company will be a global defense technology leader, focused on developing differentiated and mission critical solutions for customers around the world. Pursuant to the terms of the merger agreement, Leopard Merger Sub Inc., a wholly-owned subsidiary of Harris and a party to the merger agreement, will merge with and into L3, which transaction is referred to as the merger, with L3 surviving as a wholly-owned subsidiary of Harris. Following the merger, Harris will change its name to “L3 Harris Technologies, Inc.,” and Harris, L3 and their respective subsidiaries will operate as a combined company, which is referred to as the combined company, under this name.

Upon successful completion of the merger, each issued and outstanding share of L3 common stock will be converted into the right to receive 1.30 shares of Harris common stock, which number is referred to as the exchange ratio. This exchange ratio is fixed and will not be adjusted for changes in the market price of either Harris common stock or L3 common stock between the dates of signing of the merger agreement and completion of the merger. Harris stockholders will continue to own their existing Harris shares. As of the date of this joint proxy statement/prospectus, based on the estimated number of shares of Harris common stock and L3 common stock that will be outstanding immediately prior to the completion of the merger, we estimate that Harris stockholders will own approximately 54% and L3 stockholders will own approximately 46% of the issued and outstanding shares of the combined company immediately following the completion of the merger. Both Harris’ and L3’s common stock is traded on the NYSE, under the symbols “HRS” and “LLL,” respectively. The common stock of the combined company will be listed on the NYSE under a symbol to be agreed upon by Harris and L3. We encourage you to obtain updated quotes for the Harris common stock and the L3 common stock.

Harris and L3 will each hold special meetings of their respective stockholders in connection with the proposed merger, which are referred to as the Harris stockholder meeting and the L3 stockholder meeting, respectively.

At the Harris stockholder meeting, Harris stockholders will be asked to consider and vote on (1) the proposal to approve the issuance of shares of Harris common stock to L3 stockholders pursuant to the merger agreement, which is referred to as the Harris share issuance proposal, (2) the proposal to adopt amendments to certain provisions of Harris’ certificate of incorporation, which is referred to as the Harris charter amendment proposal, (3) the proposal to approve, on a non-binding advisory basis, specific compensatory arrangements between Harris and its named executive officers relating to the merger and (4) the proposal to adjourn the Harris stockholder meeting to solicit additional proxies if there are not sufficient votes to approve the Harris share issuance proposal or the Harris charter amendment proposal or to ensure that any supplement or amendment to the accompanying joint proxy statement/prospectus is timely provided to Harris stockholders. The Harris board of directors unanimously recommends that Harris stockholders vote “FOR” each of the proposals to be considered at the Harris stockholder meeting.

At the L3 stockholder meeting, L3 stockholders will be asked to consider and vote on (1) the proposal to adopt the merger agreement, which is referred to as the L3 merger agreement proposal, (2) the proposal to approve, on a non-binding advisory basis, specific compensatory arrangements between L3 and its named executive officers relating to the merger and (3) the proposal to adjourn the L3 stockholder meeting to solicit additional proxies if there are not sufficient votes to approve the L3 merger agreement proposal or to ensure that any supplement or amendment to the accompanying joint proxy statement/prospectus is timely provided to L3 stockholders. The L3 board of directors unanimously recommends that L3 stockholders vote “FOR” each of the proposals to be considered at the L3 stockholder meeting.

We cannot complete the merger unless the L3 stockholders approve the L3 merger agreement proposal and the Harris stockholders approve both the Harris share issuance proposal and the Harris charter amendment proposal. Your vote on these matters is very important, regardless of the number of shares you own. Whether or not you plan to attend your respective stockholder meeting in person, please promptly mark, sign and date the accompanying proxy and return it in the enclosed postage-paid envelope or authorize the individuals named on your proxy card to vote your shares by calling the toll-free telephone number or by using the Internet as described in the instructions included with your proxy card.

The accompanying joint proxy statement/prospectus provides you with important information about the stockholder meetings, the merger, and each of the proposals. We encourage you to read the entire document carefully, in particular the “Risk Factors” section beginning on page 44 for a discussion of risks relevant to the merger.

We look forward to the successful completion of the merger.

Sincerely,

William M. Brown Chairman, President and Chief Executive Officer Harris Corporation	Christopher E. Kubasik Chairman, Chief Executive Officer and President L3 Technologies, Inc.

Neither the U.S. Securities and Exchange Commission nor any state securities commission has approved or disapproved of the merger or the Harris common stock to be issued in the merger or determined if this joint proxy statement/prospectus is accurate or complete. Any representation to the contrary is a criminal offense.

This joint proxy statement/prospectus is dated February 25, 2019 and is first being mailed to Harris and L3 stockholders on or about February 25, 2019.

Harris Corporation
1025 West NASA Boulevard

Melbourne, Florida 32919
(321) 727-9100

NOTICE OF SPECIAL MEETING OF STOCKHOLDERS
TO BE HELD ON APRIL 4, 2019

To the Stockholders of Harris Corporation:

Notice is hereby given that Harris Corporation, which is referred to as Harris, will hold a special meeting of its stockholders, which is referred to as the Harris stockholder meeting, at the Harris Global Innovation Center located at 1025 West NASA Boulevard, Melbourne, Florida 32919, on April 4, 2019, beginning at 10:00 a.m. Eastern time, for the purpose of considering and voting on the following proposals:

Harris will transact no other business at the Harris stockholder meeting except such business as may properly be brought before the Harris stockholder meeting or any adjournment or postponement thereof. The accompanying joint proxy statement/prospectus, including the merger agreement attached thereto as Annex A, contains further information with respect to these matters.

Only holders of record of Harris common stock at the close of business on February 22, 2019 are entitled to notice of and to vote at the Harris stockholder meeting and any adjournments or postponements thereof.

The Harris board of directors has unanimously approved and declared advisable the merger agreement and the transactions contemplated by the merger agreement on the terms and subject to the conditions set forth in the merger agreement. The Harris board of directors unanimously recommends that Harris stockholders vote “FOR” the Harris share issuance proposal, “FOR” the Harris charter amendment proposal, “FOR” the Harris compensation proposal and “FOR” the Harris adjournment proposal.

Your vote is very important, regardless of the number of shares of Harris common stock you own. We cannot complete the transactions contemplated by the merger agreement without approval of the Harris share issuance proposal and the Harris charter amendment proposal. Assuming a quorum is present, the approval of the Harris share issuance proposal requires the affirmative vote of a majority of votes cast on the proposal, and the approval of the Harris charter amendment proposal requires the affirmative vote of a majority of the outstanding shares of Harris common stock entitled to vote on such proposal.

Whether or not you plan to attend the Harris stockholder meeting in person, we urge you to please promptly mark, sign and date the accompanying proxy and return it in the enclosed postage-paid envelope or authorize the individuals named on the proxy card to vote your shares by calling the toll-free telephone number or by using the Internet as described in the instructions included with the proxy card. If your shares are held in the name of a bank, broker or other nominee, please follow the instructions on the voting instruction card furnished by such bank, broker or other nominee. If you choose to vote your shares in person at the Harris stockholder meeting, please bring the enclosed proxy card and proof of identification. The use of video, still photography or audio recording at the Harris stockholder meeting is not permitted. For the safety of attendees, all bags, packages and briefcases are subject to inspection. Your compliance is appreciated.

If you have any questions about the merger, please contact Harris at (321) 727-9100 or write to Harris Corporation, Attn: Corporate Secretary, 1025 West NASA Boulevard, Melbourne, Florida 32919.

If you have any questions about how to vote or direct a vote in respect of your shares of Harris common stock, you may contact our proxy solicitor, Georgeson LLC, at (866) 297-1410.

	By Order of the Board of Directors,
	Scott T. Mikuen, Senior Vice President, General Counsel and Corporate Secretary

Melbourne, Florida

Dated: February 25, 2019

L3 Technologies, Inc.
600 Third Avenue
New York, New York 10016
(212) 697-1111

NOTICE OF SPECIAL MEETING OF STOCKHOLDERS
TO BE HELD ON APRIL 4, 2019

To the Stockholders of L3 Technologies, Inc.:

Notice is hereby given that L3 Technologies, Inc., which is referred to as L3, will hold a special meeting of its stockholders, which is referred to as the L3 stockholder meeting, at the offices of Simpson Thacher & Bartlett LLP, located at 425 Lexington Avenue, New York, New York 10017, on April 4, 2019, beginning at 10:00 a.m., Eastern time, for the purpose of considering and voting on the following proposals:

L3 will transact no other business at the L3 stockholder meeting except such business as may properly be brought before the L3 stockholder meeting or any adjournment or postponement thereof. The accompanying joint proxy statement/prospectus, including the merger agreement attached thereto as Annex A, contains further information with respect to these matters.

Only holders of record of L3 common stock at the close of business on February 22, 2019 are entitled to notice of and to vote at the L3 stockholder meeting and any adjournments or postponements thereof.

The L3 board of directors has unanimously approved and declared advisable the merger agreement and the transactions contemplated by the merger agreement on the terms and subject to the conditions set forth in the merger agreement. The L3 board of directors unanimously recommends that L3 stockholders vote “FOR” the L3 merger agreement proposal, “FOR” the L3 compensation proposal and “FOR” the L3 adjournment proposal.

Your vote is very important, regardless of the number of shares of L3 common stock you own. We cannot complete the transactions contemplated by the merger agreement without approval of the L3 merger agreement proposal. Assuming a quorum is present, the approval of the L3 merger agreement proposal requires the affirmative vote of a majority of the outstanding shares of L3 common stock entitled to vote on the L3 merger agreement proposal.

Whether or not you plan to attend the L3 stockholder meeting in person, we urge you to please promptly mark, sign and date the accompanying proxy and return it in the enclosed postage-paid envelope or authorize the individuals named on the proxy card to vote your shares by calling the toll-free telephone number or by using the Internet as described in the instructions included with the proxy card. If your shares are held in the name of a bank, broker or other nominee, please follow the instructions on the voting instruction card furnished by such bank, broker or other nominee. If you choose to vote your shares in person at the stockholder meeting, please

bring the enclosed proxy card and proof of identification. The use of video, still photography or audio recording at the stockholder meeting is not permitted. For the safety of attendees, all bags, packages and briefcases are subject to inspection. Your compliance is appreciated.

If you have any questions about the merger, please contact L3 at (212) 697-1111 or write to L3 Technologies, Inc., Attn: Corporate Secretary, 600 Third Avenue, New York, New York 10016.

If you have any questions about how to vote or direct a vote in respect of your shares of L3 common stock, you may contact our proxy solicitor, Innisfree M&A Incorporated, toll-free at (877) 717-3898 or call collect at (212) 750-5833.

	By Order of the Board of Directors,
	Ann D. Davidson, Senior Vice President and Chief Legal Officer

New York, New York

Dated: February 25, 2019

REFERENCES TO ADDITIONAL INFORMATION

This joint proxy statement/prospectus incorporates important business and financial information about Harris and L3 from other documents that Harris and L3 have filed with the U.S. Securities and Exchange Commission, which is referred to as the SEC, and that are contained in or incorporated by reference into this joint proxy statement/prospectus. For a listing of documents incorporated by reference into this joint proxy statement/prospectus, please see the section entitled “Where You Can Find More Information” beginning on page 215. This information is available for you free of charge to review through the SEC’s website at www.sec.gov.

Any person may request a copy of this joint proxy statement/prospectus and any of the documents incorporated by reference into this joint proxy statement/prospectus or other information concerning Harris or L3, without charge, by written or telephonic request directed to the appropriate company or its proxy solicitor at the following contacts:

In order for you to receive timely delivery of the documents in advance of the special meeting of Harris stockholders to be held on April 4, 2019, which is referred to as the Harris stockholder meeting, or the special meeting of L3 stockholders to be held on April 4, 2019, which is referred to as the L3 stockholder meeting, as applicable, you must request the information no later than March 28, 2019.

The contents of the websites of the SEC, Harris, L3 or any other entity are not being incorporated into this joint proxy statement/prospectus. The information about how you can obtain certain documents that are incorporated by reference into this joint proxy statement/prospectus at these websites is being provided only for your convenience.

ABOUT THIS JOINT PROXY STATEMENT/PROSPECTUS

This document, which forms part of a registration statement on Form S-4 filed with the SEC by Harris (File No. 333-228829), constitutes a prospectus of Harris under Section 5 of the Securities Act of 1933, as amended, which is referred to as the Securities Act, with respect to the shares of common stock of Harris to be issued to L3 stockholders pursuant to the Agreement and Plan of Merger, dated as of October 12, 2018, by and among Harris, L3 and Merger Sub, as it may be amended from time to time, which is referred to as the merger agreement. This document also constitutes a joint proxy statement of Harris and L3 under Section 14(a) of the Securities Exchange Act of 1934, as amended, which is referred to as the Exchange Act. It also constitutes a notice of meeting with respect to the L3 stockholder meeting and a notice of meeting with respect to the Harris stockholder meeting.

Harris has supplied all information contained or incorporated by reference into this joint proxy statement/prospectus relating to Harris, and L3 has supplied all such information relating to L3. Harris and L3 have both contributed to the information related to the merger contained in this joint proxy statement/prospectus.

You should rely only on the information contained in or incorporated by reference into this joint proxy statement/prospectus. Harris and L3 have not authorized anyone to provide you with information that is different from that contained in or incorporated by reference into this joint proxy statement/prospectus. This joint proxy statement/prospectus is dated February 25, 2019, and you should not assume that the information contained in this joint proxy statement/prospectus is accurate as of any date other than such date unless otherwise specifically provided herein.

Further, you should not assume that the information incorporated by reference into this joint proxy statement/prospectus is accurate as of any date other than the date of the incorporated document. Neither the mailing of this joint proxy statement/prospectus to Harris stockholders or L3 stockholders nor the issuance by Harris of shares of its common stock pursuant to the merger agreement will create any implication to the contrary.

This joint proxy statement/prospectus does not constitute an offer to sell, or a solicitation of an offer to buy, any securities, or the solicitation of a proxy, in any jurisdiction to or from any person to whom it is unlawful to make any such offer or solicitation in such jurisdiction.

All references in this joint proxy statement/prospectus to “Harris” refer to Harris Corporation, a Delaware corporation; all references to “Merger Sub” refer to Leopard Merger Sub Inc., a Delaware corporation and wholly-owned subsidiary of Harris formed for the purpose of effecting the merger as described in this joint proxy statement/prospectus. All references in this joint proxy statement/prospectus to “L3” refer to L3 Technologies, Inc., a Delaware corporation. All references in this joint proxy statement/prospectus to “combined company” or “L3 Harris” refer to Harris immediately following completion of the merger and the other transactions contemplated by the merger agreement. All references in this joint proxy statement/prospectus to “Harris common stock” refer to the common stock of Harris, par value $1.00 per share, and all references in this joint proxy statement/prospectus to “L3 common stock” refer to the common stock of L3, par value $0.01 per share.

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QUESTIONS AND ANSWERS

The following are some questions that you, as a stockholder of Harris or a stockholder of L3, may have regarding the merger and the other matters being considered at the special meetings of each company’s stockholders and brief answers to those questions. You are urged to carefully read this joint proxy statement/prospectus and the other documents referred to in this joint proxy statement/prospectus in their entirety because this section may not provide all the information that is important to you regarding these matters. Additional important information is contained in the annexes to, and the documents incorporated by reference into, this joint proxy statement/prospectus. You may obtain the information incorporated by reference in this joint proxy statement/prospectus, without charge, by following the instructions under the section entitled “Where You Can Find More Information” beginning on page 215.

In order to complete the merger, among other things:

Harris is holding a special meeting of its stockholders, which is referred to as the Harris stockholder meeting, to obtain approval of the Harris share issuance proposal and the Harris charter amendment proposal. Harris stockholders will also be asked to approve, on an advisory (non-binding) basis, the merger-related executive officer compensation payments that will or may be paid by Harris to its named executive officers in connection with the merger, which is referred to as the Harris compensation proposal, and to approve the proposal to adjourn the Harris stockholder meeting to solicit additional proxies if there are not sufficient votes at the time of the Harris stockholder meeting to approve the Harris share issuance proposal and the Harris charter amendment proposal or to ensure that any supplement or amendment to this joint proxy statement/prospectus is timely provided to Harris stockholders, which is referred to as the Harris adjournment proposal.

L3 is holding a special meeting of its stockholders, which is referred to as the L3 stockholder meeting, to obtain approval of the L3 merger agreement proposal. L3 stockholders will also be asked to approve, on an advisory (non-binding) basis, the merger-related executive officer compensation payments that will or may be paid by L3 to its named executive officers in connection with the merger, which is referred to as the L3 compensation proposal, and to approve the proposal to adjourn the L3 stockholder meeting to solicit additional proxies if there are not sufficient votes at the time of the L3 stockholder meeting to approve the L3 merger agreement proposal or to ensure that any supplement or amendment to this joint proxy statement/prospectus is timely provided to L3 stockholders, which is referred to as the L3 adjournment proposal.

Your vote is very important.

The L3 stockholder meeting will be held at the offices of Simpson Thacher & Bartlett LLP, located at 425 Lexington Avenue, New York, New York 10017, on April 4, 2019, at 10:00 a.m.

If you choose to vote your shares in person at your respective company’s stockholder meeting, please bring your enclosed proxy card and proof of identification. The use of video, still photography or audio recording at each of the stockholder meetings is not permitted. For the safety of attendees, all bags, packages and briefcases are subject to inspection.

Even if you plan to attend your respective company’s stockholder meeting, L3 and Harris recommend that you vote your shares in advance as described below so that your vote will be counted if you later decide not to or become unable to attend the applicable stockholder meeting. Shares held in “street name” may be voted in person by you only if you obtain a signed legal proxy from your bank, broker or other nominee giving you the right to vote the shares.

At the L3 stockholder meeting, stockholders of L3 will be asked to consider and vote on the following proposals:

The approval of the L3 merger agreement proposal, the approval of the Harris share issuance proposal and the approval of the Harris charter amendment proposal are conditions to the obligations of L3 and Harris to complete the merger. None of the approvals of the Harris compensation proposal, the L3 compensation proposal, the Harris adjournment proposal or the L3 adjournment proposal are conditions to the obligations of L3 or Harris to complete the merger.

For Harris stockholders, if you do not return or submit your proxy or vote at the stockholder meeting as provided in this joint proxy statement/prospectus, the effect will be the same as a vote “AGAINST” the Harris charter amendment proposal. The Harris board of directors unanimously recommends that you vote “FOR” the Harris share issuance proposal, “FOR” the Harris charter amendment proposal, “FOR” the Harris compensation proposal and “FOR” the Harris adjournment proposal.

For L3 stockholders, if you do not return or submit your proxy or vote at the stockholder meeting as provided in this joint proxy statement/prospectus, the effect will be the same as a vote “AGAINST” the L3 merger agreement proposal. The L3 board of directors unanimously recommends that you vote “FOR” the L3 merger agreement proposal, “FOR” the L3 compensation proposal and “FOR” the L3 adjournment proposal.

If the merger is completed, Harris stockholders will not receive any merger consideration, and their shares of Harris common stock will constitute shares of the combined company.

Because Harris will issue a fixed number of shares of Harris common stock in exchange for each share of L3 common stock, the value of the merger consideration that L3 stockholders will receive in the merger will depend on the market price of shares of Harris common stock at the time the merger is completed. The market price of shares of Harris common stock when L3 stockholders receive those shares after the merger is completed could be greater than, less than or the same as the market price of shares of Harris common stock on the date of this joint proxy statement/prospectus or at the time of the stockholder meetings. Accordingly, you should obtain current stock price quotations for Harris common stock and L3 common stock before deciding how to vote with respect to the approval of the share issuance and the adoption of the charter amendment in the case of Harris stockholders or the adoption of the merger agreement in the case of L3 stockholders. Each of Harris’ and L3’s common stock is traded on the New York Stock Exchange, which is referred to as the NYSE, under the symbols “HRS” and “LLL,” respectively. Harris and L3 will cooperate in good faith to identify a ticker symbol under which shares of common stock of the combined company will trade on the NYSE after completion of the merger.

For more information regarding the merger consideration to be provided to L3 stockholders if the merger is completed, see the section entitled “The Merger Agreement—Merger Consideration” beginning on page 129.

Each equity award described above is referred to as a Harris equity award.

Each equity award described above is referred to as an L3 equity award.

In considering the recommendations of the Harris board of directors, Harris stockholders should be aware that Harris directors will directly benefit from the merger. In addition, Harris directors and executive officers have interests in the merger that are different from, or in addition to, their interests as Harris stockholders. For a more complete description of these interests, see the information provided in the section entitled “Interests of Harris’ Directors and Executive Officers in the Merger” beginning on page 166.

In considering the recommendations of the L3 board of directors, L3 stockholders should be aware that L3 directors will directly benefit from the merger. In addition, L3 directors and executive officers have interests in the merger that are different from, or in addition to, their interests as L3 stockholders. For a more complete description of these interests, see the information provided in the section entitled “Interests of L3’s Directors and Executive Officers in the Merger” beginning on page 174.

A “broker non-vote” occurs on an item when (a) a bank, broker or other nominee has discretionary authority to vote on one or more proposals to be voted on at a meeting of stockholders, but is not permitted to vote on other proposals without instructions from the beneficial owner of the shares and (b) the beneficial owner fails to provide the bank, broker or other nominee with such instructions. Because none of the proposals currently scheduled to be voted on at either the Harris stockholder meeting or the L3 stockholder meeting are routine matters for which brokers may have discretionary authority to vote, Harris and L3 do not expect there to be any broker non-votes at the Harris stockholder meeting or the L3 stockholder meeting, respectively.

Harris Proposal 2: Harris charter amendment proposal. Assuming a quorum is present, the adoption of the charter amendment by stockholders of Harris requires the affirmative vote of a majority of the outstanding shares of Harris common stock entitled to vote on such proposal. Accordingly, a Harris stockholder’s abstention from voting, a broker non-vote or the failure of a Harris stockholder to vote (including the failure of a Harris stockholder who holds shares in “street name” through a bank, broker or other nominee to give voting instructions to that bank, broker or other nominee) will have the same effect as a vote “AGAINST” the Harris charter amendment proposal.

Harris Proposal 3: Harris compensation proposal. Assuming a quorum is present, approval of the Harris compensation proposal requires the affirmative vote of the majority of shares present in person or represented by proxy at the Harris stockholder meeting and entitled to vote on the subject matter. A Harris stockholder’s abstention from voting will have the same effect as a vote “AGAINST” the Harris compensation proposal, while a broker non-vote or the failure of a Harris stockholder to vote (including the failure of a Harris stockholder who holds shares in “street name” through a bank, broker or other nominee to give voting instructions to that bank, broker or other nominee) will have no effect on the Harris compensation proposal.

Harris Proposal 4: Harris adjournment proposal. The Harris stockholder meeting may be adjourned to solicit additional proxies if there are not sufficient votes at the time of the Harris stockholder meeting to approve the Harris share issuance proposal and the Harris charter amendment proposal or to ensure that any supplement or amendment to this joint proxy statement/prospectus is timely provided to the Harris stockholders. Whether or not a quorum is present, the affirmative vote of the holders of a majority of the voting shares of Harris common stock represented at the Harris stockholder meeting is required to adjourn the Harris stockholder meeting. A Harris stockholder’s abstention from voting will have the same effect as a vote “AGAINST” the Harris adjournment proposal, while a broker non-vote or the failure of a Harris stockholder to vote (including the failure of a Harris stockholder who holds shares in “street name” through a bank, broker or other nominee to give voting instructions to that bank, broker or other nominee) will have no effect on the Harris adjournment proposal.

L3 Proposal 2: L3 compensation proposal. Assuming a quorum is present, approval of the L3 compensation proposal requires the affirmative vote of a majority of the votes cast at the L3 stockholder meeting on this proposal. Accordingly, an L3 stockholder’s abstention from voting, a broker non-vote or the failure of an L3 stockholder to vote (including the failure of an L3 stockholder who holds shares in “street name” through a bank, broker or other nominee to give voting instructions to that bank, broker or other nominee) will have no effect on the L3 compensation proposal.

L3 Proposal 3: L3 adjournment proposal. The L3 stockholder meeting may be adjourned to solicit additional proxies if there are not sufficient votes at the time of the L3 stockholder meeting to approve the L3 merger agreement proposal or to ensure that any supplement or amendment to this joint proxy statement/prospectus is timely provided to the L3 stockholders. Whether or not there is a quorum, approval of the L3 adjournment proposal requires the affirmative vote of a majority in voting power of the shares of L3 common stock represented at the L3 stockholder meeting. Accordingly, an L3 stockholder’s abstention from voting will have the same effect as a vote “AGAINST” the proposal, while a broker non-vote or the failure of an L3 stockholder to vote (including the failure of an L3 stockholder who holds shares in “street name” through a bank, broker or other nominee to give voting instructions to that bank, broker or other nominee) will have no effect on the L3 adjournment proposal. The chairman of the L3 stockholder meeting may also adjourn the meeting, whether or not there is a quorum.

Shares in “street name.” Shares held in “street name” may be voted in person by you only if you obtain a signed legal proxy from your bank, broker or other nominee giving you the right to vote the shares. If you choose to vote your shares in person at the Harris stockholder meeting or L3 stockholder meeting, as applicable, please bring proof of identification.

Even if you plan to attend the Harris stockholder meeting or the L3 stockholder meeting, as applicable, Harris and L3 recommend that you vote your shares in advance as described below so that your vote will be counted if you later decide not to or become unable to attend the respective stockholder meeting. The use of video, still photography or audio recording at either stockholder meeting is not permitted at either stockholder meeting. For the safety of attendees, all bags, packages and briefcases are subject to inspection. Your compliance is appreciated.

Harris stockholders who hold shares of Harris common stock through the Harris Corporation Retirement Plan, which is referred to as the Harris Retirement Plan, may attend the Harris stockholder meeting, but may not vote such shares in person. Harris stockholders who hold shares of Harris common stock through the Harris Retirement Plan should submit voting instructions for those shares to the trustee of the Harris Retirement Plan by using the Internet, telephone or by mail and by following the instructions contained together with the proxy card as further explained in the section entitled “The Harris Stockholder Meeting—Methods of Voting” on page 62.

L3 stockholders who hold shares of L3 common stock through an L3 401(k) Plan may attend the L3 stockholder meeting, but may not vote such shares in person. L3 stockholders who hold shares of L3 common stock through an L3 401(k) Plan should submit a proxy for such shares by using the Internet, telephone or by mail and by following the instructions contained together with the proxy card as further explained in the section entitled “The L3 Stockholder Meeting—Methods of Voting” on page 73.

Additional information on attending the stockholder meetings can be found under the section entitled “The Harris Stockholder Meeting” on page 60 and under the section entitled “The L3 Stockholder Meeting” on page 71.

Additional information on voting procedures can be found under the section entitled “The Harris Stockholder Meeting” on page 60 and under the section entitled “The L3 Stockholder Meeting” on page 71.

If your shares of common stock in Harris or L3 are held by a bank, broker or other nominee, you are considered the beneficial owner of shares held in “street name,” and your bank, broker or other nominee is considered the stockholder of record with respect to those shares. Your bank, broker or other nominee will send you, as the beneficial owner, a package describing the procedure for voting your shares. You should follow the instructions provided by them to vote your shares. You are invited to attend the Harris stockholder meeting or the L3 stockholder meeting, as applicable, however, you may not vote these shares in person at the respective stockholder meeting unless you obtain a signed legal proxy, executed in your favor, from your bank, broker or other nominee that holds your shares, giving you the right to vote the shares at the applicable stockholder meeting.

other nominees are prohibited from exercising their voting discretion with respect to non-routine matters, which includes all the proposals currently scheduled to be considered and voted on at each of the Harris and L3 stockholder meetings. As a result, absent specific instructions from the beneficial owner of such shares, banks, brokers and other nominees are not empowered to vote such shares.

For Harris stockholders, the effect of not instructing your bank, broker or other nominee how you wish to vote your shares will be the same as a vote “AGAINST” the Harris charter amendment proposal, but will not be counted as “FOR” or “AGAINST” and, assuming a quorum is present at the Harris stockholder meeting, will have no effect on, the Harris share issuance proposal, the Harris compensation proposal or the Harris adjournment proposal.

For L3 stockholders, the effect of not instructing your bank, broker or other nominee how you wish to vote your shares will be the same as a vote “AGAINST” the L3 merger agreement proposal, but will not be counted as “FOR” or “AGAINST” and, assuming a quorum is present at the L3 stockholder meeting, will have no effect on, the L3 compensation proposal or the L3 adjournment proposal.

Additional information about the methods of voting can be found under the section entitled “The Harris Stockholder Meeting—Methods of Voting” beginning on page 62.

Additional information about the methods of voting can be found under the section entitled “The Harris Stockholder Meeting—Methods of Voting” beginning on page 62.

Your proxy will serve as voting instructions for the shares of L3 common stock reflecting your proportional interest in the L3 common stock held in the plan as of the record date. The trustee will vote shares of L3 common stock reflecting your proportional interest in the L3 common stock in the L3 401(k) Plan as instructed on the proxy. If you hold an interest in L3 common stock through an L3 401(k) Plan and you do not provide voting instructions, the trustee will vote the shares in the same proportion as the shares of L3 common stock held by the L3 401(k) Plan for which voting instructions have been received from other participants in the plan, except as otherwise required by law.

Additional information about the methods of voting can be found under the section entitled “The L3 Stockholder Meeting—Methods of Voting” beginning on page 73.

Record Holders. For shares held directly, please complete, sign, date and return each proxy card (or cast your vote by telephone or Internet as provided on each proxy card) or otherwise follow the voting instructions provided in this joint proxy statement/prospectus in order to ensure that all of your shares of Harris common stock or L3 common stock are voted.

Shares in “street name.” For shares held in “street name” through a bank, broker or other nominee, you should follow the procedures provided by your bank, broker or other nominee to vote your shares.

Execution or revocation of a proxy will not in any way affect your right to attend the applicable stockholder meeting and vote in person. Written notices of revocation and other communications with respect to the revocation of proxies should be addressed:

If your shares are held in the name of a bank, broker or other nominee and you previously provided voting instructions to your bank, broker or other nominee, you should follow the instructions provided by your bank, broker or other nominee to revoke or change your voting instructions.

Because individual circumstances may differ, it is recommended that you consult your own tax advisor to determine the particular tax effects of the merger to you.

You should read the section entitled “Material U.S. Federal Income Tax Consequences” beginning on page 181 for a more complete discussion of the material U.S. federal income tax consequences of the merger.

TAX MATTERS ARE COMPLICATED AND THE TAX CONSEQUENCES OF THE MERGER WILL DEPEND ON THE FACTS OF YOUR OWN SITUATION. YOU SHOULD CONSULT YOUR OWN TAX ADVISOR AS TO THE SPECIFIC TAX CONSEQUENCES OF THE MERGER TO YOU IN YOUR PARTICULAR CIRCUMSTANCES.

consummate the merger is also conditioned on, among other things, the receipt of the required tax representation letter from the other party, although this condition would nevertheless not be satisfied if such receiving party’s counsel, due to a change in law, is unable to deliver an opinion based on such representation letters to the effect that for U.S. federal income tax purposes the merger will qualify as a “reorganization” within the meaning of Section 368(a) of the Code and such receiving party is unable to obtain such an opinion from an alternative tax counsel pursuant to the merger agreement, the absence of a material adverse effect on the other party, the truth and correctness of the representations and warranties made by the other party on the date of the merger agreement and on the closing date (subject to certain materiality qualifiers) and the performance by the other party in all material respects of its obligations under the merger agreement. In addition, the obligation of L3 to consummate the merger is conditioned on the implementation, at the effective time of the merger, of the governance-related matters described in the section entitled “The Merger—Governance of the Combined Company” beginning on page 124. For a more complete summary of the conditions that must be satisfied or waived prior to completion of the merger, see the section entitled “The Merger Agreement—Conditions to the Completion of the Merger” beginning on page 149.

L3 may declare and pay one regular quarterly cash dividend per quarter as follows:

L3 will coordinate with Harris on the declaration, setting of record dates and payment dates of dividends on shares of L3 common stock so that holders of shares of L3 common stock do not receive dividends on both shares of L3 common stock and Harris common stock received in the merger in respect of any calendar quarter or fail to receive a dividend on either shares of L3 common stock or Harris common stock received in the merger in respect of any calendar quarter.

For more information regarding the payment of dividends, see the section entitled “The Merger Agreement—Conduct of Business Prior to the Effective Time” beginning on page 136.

deliver to you the Harris common stock (in book-entry form) and cash in lieu of fractional shares to which you are entitled. More information may be found in the sections entitled “The Merger—Exchange of Shares” beginning on page 126 and “The Merger Agreement—Exchange Procedures” beginning on page 130.

SUMMARY

For your convenience, provided below is a brief summary of certain information contained in this joint proxy statement/prospectus. This summary highlights selected information from this joint proxy statement/prospectus and does not contain all of the information that may be important to you as a Harris stockholder or an L3 stockholder. To understand the merger fully and for a more complete description of the terms of the merger, you should read carefully this entire joint proxy statement/prospectus, its annexes and the other documents to which you are referred. Items in this summary include a page reference directing you to a more complete description of those items. You may obtain the information incorporated by reference into this joint proxy statement/prospectus without charge by following the instructions under the section entitled “Where You Can Find More Information” beginning on page 215.

The Parties to the Merger (Page 59)

L3 Technologies, Inc.

L3 Technologies, Inc., a Delaware corporation is an agile innovator and leading provider of global intelligence, surveillance and reconnaissance, communications and electronic systems for military, homeland security and commercial aviation customers. With approximately 31,000 employees worldwide, L3 develops advanced defense technologies and commercial solutions in pilot training, aviation security, night vision and electro optics/infrared, weapons, maritime systems and space. L3’s principal executive offices are located at 600 Third Avenue, New York, New York 10016 and its telephone number is (212) 697-1111.

Harris Corporation

Harris Corporation, a Delaware corporation, is a leading technology innovator, solving customers’ toughest mission-critical challenges by providing solutions that connect, inform and protect. Harris operates in three segments: communication systems, electronic systems and space and intelligence systems. Harris supports government and commercial customers in more than 100 countries, with its largest customers being various departments and agencies of the U.S. government and their prime contractors. Harris’ products, systems and services have defense and civil government applications, as well as commercial applications. Harris’ principal executive offices are located at 1025 West NASA Boulevard, Melbourne, Florida 32919 and its telephone number is (321) 727-9100.

Leopard Merger Sub Inc.

Leopard Merger Sub Inc., a Delaware corporation and a wholly-owned subsidiary of Harris, was formed solely for the purpose of facilitating the merger. Merger Sub has not carried on any activities or operations to date, except for those activities incidental to its formation and undertaken in connection with the merger and the other transactions contemplated by the merger agreement. By operation of the merger, Merger Sub will be merged with and into L3, with L3 surviving the merger as a wholly-owned subsidiary of Harris. Merger Sub’s principal executive offices are located at c/o Harris Corporation, 1025 West NASA Boulevard, Melbourne, Florida 32919 and its telephone number is (321) 727-9100.

The Merger and the Merger Agreement (Pages 80 and 128)

The terms and conditions of the merger are contained in the merger agreement, a copy of which is attached as Annex A to this joint proxy statement/prospectus. You are encouraged to read the merger agreement carefully and in its entirety, as it is the primary legal document that governs the merger.

Pursuant to the merger agreement, Merger Sub will merge with and into L3. At the effective time, the separate existence of Merger Sub will cease, and L3 will be the surviving corporation and a wholly-owned subsidiary of the combined company, which will be renamed “L3 Harris Technologies, Inc.” Following the merger, L3 common stock will be delisted from the NYSE, deregistered under the Exchange Act and will cease to be publicly traded.

Exchange Ratio (Page 80)

In the merger, each share of L3 common stock (other than excluded shares, as defined in the section entitled “The Merger—Exchange Ratio” beginning on page 80) will be converted into the right to receive 1.30 shares of Harris common stock, which ratio is referred to as the exchange ratio, and which amount of Harris common

stock is referred to as the merger consideration. The exchange ratio is fixed, which means that it will not change between now and the date of completion of the merger, regardless of whether the market price of either Harris or L3 common stock changes. No fractional shares of Harris common stock will be issued upon the conversion of shares of L3 common stock pursuant to the merger agreement. Each L3 stockholder that otherwise would have been entitled to receive a fraction of a share of Harris common stock will be entitled to receive cash in lieu of a fractional share.

Harris stockholders will continue to own their existing shares, which will not be affected by the merger and which will constitute shares of the combined company following completion of the merger.

For more information on the exchange ratio, see the section entitled “The Merger—Exchange Ratio” beginning on page 80 and “The Merger Agreement—Merger Consideration” beginning on page 129.

Treatment of Existing Harris Equity Awards (Page 129)

Harris Stock Options

At the effective time, any vesting conditions applicable to each outstanding Harris stock option, whether vested or unvested, granted prior to October 12, 2018, will, automatically and without any action on the part of the holder thereof, be deemed satisfied and accelerated in full, and each such award shall remain outstanding as an option to purchase shares of Harris common stock.

Harris Restricted Shares

At the effective time, any vesting conditions applicable to each outstanding Harris restricted share granted prior to October 12, 2018 will, automatically and without any action on the part of the holder thereof, be deemed satisfied and accelerated in full.

Harris RSUs

At the effective time, any vesting conditions applicable to each Harris RSU granted prior to October 12, 2018 will, automatically and without any action on the part of the holder thereof, be deemed satisfied and accelerated in full, with each Harris RSU settled in one share of Harris common stock upon completion of the merger.

Harris DSUs

At the effective time, each Harris DSU credited to each Harris director (or former director) will, automatically and without any action on the part of the holder thereof, be settled in accordance with the terms of the applicable Harris directors’ plan, with each Harris director (or former director) paid a lump sum cash payment in respect of the Harris DSUs, plus the amount equal to the remaining balance in his or her directors’ deferred compensation account no later than 90 days following the effective time.

Harris PSUs

At the effective time, any vesting conditions applicable to each Harris PSU will, automatically and without any action on the part of the holder thereof, be deemed satisfied and accelerated in full with respect to a number of shares of Harris common stock based on the greater of the target and actual level of performance through the effective time (as reasonably determined by the Harris compensation committee after consultation with L3), with each Harris PSU settled in one share of Harris common stock upon completion of the merger.

Harris Dividend Equivalent Rights

Any Harris dividend equivalent rights associated with any Harris restricted share, Harris RSU, Harris DSU or Harris PSU will either be paid in cash or treated in the same manner as the award to which such dividend equivalent rights relate, in each case, pursuant to the terms of the relevant Harris plan immediately prior to the effective time.

Treatment of Existing L3 Equity Awards (Page 129)

L3 Stock Options

At the effective time of the merger, any service-based or performance-based vesting conditions applicable to each outstanding L3 stock option, granted prior to October 12, 2018, will be deemed satisfied and accelerated in full, and each L3 stock option will be converted into an option to purchase a number of shares of Harris

common stock equal to the product (rounded down to the nearest whole number) of (a) the number of shares of L3 common stock subject to the option and (b) the exchange ratio, at an exercise price per share (rounded up to the nearest whole cent) equal to (i) the exercise price per share of L3 common stock of the L3 stock option divided by (ii) the exchange ratio.

L3 RSUs Granted Prior to October 12, 2018

At the effective time of the merger, any vesting conditions applicable to outstanding L3 RSUs, granted prior to October 12, 2018, will be deemed satisfied and accelerated in full, and each L3 RSU will be converted into the right of the holder to receive a number of shares of Harris common stock equal to the product (rounded to the nearest whole number) of the number of shares of L3 common stock subject to the L3 RSUs multiplied by the exchange ratio. The settlement in respect of the L3 RSUs will be made within 10 business days after the closing of the merger.

L3 RSUs and L3 Restricted Stock Awards Granted On or After October 12, 2018

At the effective time of the merger, outstanding L3 RSUs and L3 restricted stock awards granted on or after October 12, 2018, will be converted into restricted stock units denominated in shares of Harris common stock or restricted stock awards of Harris common stock equal to the number of L3 RSUs or the number of shares of L3 restricted stock, as applicable, multiplied by the exchange ratio. Such restricted stock units and restricted stock awards will continue to vest through the last day of the original vesting period applicable to the L3 RSUs or L3 restricted stock awards, as applicable, subject to the executive’s continued employment. These awards will be subject to accelerated vesting in the event of certain qualifying terminations following the merger.

L3 PSUs

At the effective time of the merger, any vesting conditions applicable to a portion of L3 PSUs, granted prior to October 12, 2018, determined to have been earned based on the greater of the target and actual level of performance through the effective time (as reasonably determined by the L3 compensation committee in consultation with Harris), prorated to reflect the reduced service period through the effective time, will be deemed satisfied and accelerated in full and will be converted into the right of the holder to receive a number of shares of Harris common stock equal to the product (rounded to the nearest whole number) of the number of shares of L3 common stock subject to the prorated portion of the L3 PSUs multiplied by the exchange ratio. The settlement in respect of such L3 PSUs will be made within 10 business days after the closing of the merger.

The remaining portion of the earned L3 PSUs will be converted into time-vesting restricted stock units in respect of a number of shares of Harris common stock equal to the number of shares of L3 common stock subject to the remaining L3 PSUs multiplied by the exchange ratio. Such restricted stock units will continue to vest through the last day of the original performance period applicable to the L3 PSUs, subject to the executive’s continued employment. These awards will be subject to accelerated vesting in the event of certain qualifying terminations following the merger.

L3 Dividend Equivalent Rights

At the effective time, any L3 dividend equivalent rights associated with any L3 RSU or L3 PSU will either be paid in cash or treated in the same manner as the award to which the dividend equivalent rights relate, in each case pursuant to the terms of the relevant L3 plan immediately prior to the effective time.

L3 ESPP

L3 has amended the L3 ESPP to provide that the offering period that began in July 2018 and ended in December 2018 will be the final offering period for the plan. The final investment date for the L3 ESPP was December 31, 2018, and each L3 ESPP participant’s accumulated contributions were used to purchase shares of L3 common stock on that date. No further offering periods under the L3 ESPP will commence and at the effective time of the merger, the L3 ESPP will terminate in its entirety.

Harris’ Reasons for the Merger (Page 95)

Harris’ board of directors unanimously recommends that Harris stockholders vote “FOR” the Harris share issuance proposal (Harris Proposal 1) and “FOR” the Harris charter amendment proposal (Harris Proposal 2).

In reaching its decision to approve and declare advisable the merger agreement and the transactions contemplated thereby, including the charter amendment as attached to this joint proxy statement/prospectus, the amended bylaws as attached to the merger agreement and the merger on the terms and subject to the conditions set forth in the merger agreement and to recommend that the holders of shares of Harris common stock adopt the charter amendment and approve the share issuance on the terms and subject to the conditions set forth in the merger agreement, the Harris board of directors consulted with Harris’ senior management and its outside legal and financial advisors, and considered a number of factors it believed supported its decision to enter into the merger agreement, including, without limitation, those listed in the section entitled “The Merger—Recommendation of the Harris Board of Directors; Harris’ Reasons for the Merger” beginning on page 95.

L3’s Reasons for the Merger (Page 99)

L3’s board of directors unanimously recommends that L3 stockholders vote “FOR” the merger agreement proposal (L3 Proposal 1).

The L3 board of directors unanimously approved and declared advisable the merger agreement, the merger and the other transactions contemplated by the merger agreement and determined that the merger agreement, the merger and the other transactions contemplated by the merger agreement are fair to, and in the best interests of, L3 and its stockholders. In reaching its decision to approve and declare advisable the merger agreement, the merger and the other transactions contemplated thereby and to recommend the adoption of the merger agreement to L3 stockholders, L3’s board of directors consulted with L3’s senior management, as well as outside legal and financial advisors, and considered a number of factors it believed supported its decision to enter into the merger agreement, including without limitation those listed in the section entitled “The Merger—Recommendation of the L3 Board of Directors; L3’s Reasons for the Merger” beginning on page 99.

Opinion of Harris’ Financial Advisor (Page 104 and Annex C)

Harris retained Morgan Stanley & Co. LLC, which is referred to as Morgan Stanley, as its financial advisor in connection with the transactions contemplated by the merger agreement. Morgan Stanley delivered its oral opinion to the Harris board of directors on October 12, 2018, which opinion was subsequently confirmed in a written opinion dated October 12, 2018, that, as of the date of such opinion, and subject to the various assumptions made, procedures followed, matters considered, and qualifications and limitations on the scope of the review undertaken by Morgan Stanley as set forth in its written opinion, the exchange ratio pursuant to the merger agreement was fair from a financial point of view to Harris.

The full text of Morgan Stanley’s written opinion, dated October 12, 2018, which sets forth assumptions made, procedures followed, matters considered and limitations on the scope of review undertaken by Morgan Stanley in rendering its opinion, is attached as Annex C to this joint proxy statement/prospectus and is incorporated by reference herein in its entirety. Harris stockholders should read Morgan Stanley’s opinion carefully and in its entirety for a discussion of the assumptions made, procedures followed, matters considered and qualifications and limitations on the scope of the review undertaken by Morgan Stanley in rendering its opinion. This summary is qualified in its entirety by reference to the full text of such opinion. Morgan Stanley’s opinion was directed to the Harris board of directors, in its capacity as such, and addressed only the fairness from a financial point of view to Harris of the exchange ratio pursuant to the merger agreement as of the date of such opinion. Morgan Stanley’s opinion did not address any other aspects or implications of the merger. Morgan Stanley’s opinion did not in any manner address the price at which Harris common stock would trade following the consummation of the merger or at any time, and Morgan Stanley expressed no opinion or recommendation to any holder of shares of Harris common stock or L3 common stock as to how such holder should vote at the Harris stockholder meeting or the L3 stockholder meeting, respectively, or whether to take any other action with respect to the merger.

For additional information, see the section entitled “The Merger—Opinion of Harris’ Financial Advisor” beginning on page 104 and Annex C.

Opinion of L3’s Financial Advisor (Page 111 and Annex D)

L3 retained Goldman Sachs & Co. LLC, which is referred to as Goldman Sachs, as its financial advisor in connection with the transactions contemplated by the merger agreement. Goldman Sachs delivered its oral opinion, subsequently confirmed in writing, to L3’s board of directors that, as of October 12, 2018 and based

upon and subject to the factors and assumptions set forth therein, the exchange ratio pursuant to the merger agreement was fair from a financial point of view to the holders (other than Harris and its affiliates) of L3 common stock.

The full text of the written opinion of Goldman Sachs, dated October 12, 2018, which sets forth assumptions made, procedures followed, matters considered and limitations on the review undertaken in connection with the opinion, is attached as Annex D to this joint proxy statement/prospectus and is incorporated by reference herein in its entirety, which is referred to as the Goldman Sachs opinion. Goldman Sachs provided advisory services and its opinion for the information and assistance of L3’s board of directors in connection with its consideration of the merger. The Goldman Sachs opinion is not a recommendation as to how any holder of L3’s common stock should vote with respect to the merger or any other matter.

For additional information, see the section entitled “The Merger—Opinion of L3’s Financial Advisor” beginning on page 111 and Annex D.

Proxy Solicitation Costs (Pages 64 and 74)

Harris and L3 are soliciting proxies to provide an opportunity to all Harris stockholders and L3 stockholders to vote on agenda items at the respective stockholder meetings, whether or not they are able to attend their respective stockholder meetings or an adjournment or postponement thereof. Harris’ and L3’s directors, officers and other employees may solicit proxies in person, by telephone, electronically, by mail or other means, but they will not be specifically compensated for doing this. Harris and L3 also may be required to reimburse banks, brokers and other persons for expenses they incur in forwarding proxy materials to obtain voting instructions from beneficial stockholders. Harris has also hired Georgeson to assist in the solicitation of proxies, and L3 has hired Innisfree to assist in the solicitation of proxies. The total cost of solicitation of proxies will be borne by Harris and L3. For a description of the costs and expenses to Harris and L3 of soliciting proxies, see “The Harris Stockholder Meeting—Proxy Solicitation Costs” on page 64 and “The L3 Stockholder Meeting—Proxy Solicitation Costs” on page 74.

The Harris Stockholder Meeting (Page 60)

The Harris stockholder meeting will be held on April 4, 2019 at 10:00 a.m., Eastern time, at the Harris Global Innovation Center located at 1025 West NASA Boulevard, Melbourne, Florida 32919. The purposes of the Harris stockholder meeting are as follows:

Completion of the merger is conditioned on the approval of the share issuance and adoption of the charter amendment by Harris’ stockholders. Approval of the advisory proposal concerning the merger-related compensation arrangements for Harris’ named executive officers is not a condition to the obligation of either L3 or Harris to complete the merger.

Only holders of record of issued and outstanding shares of Harris common stock as of the close of business on February 22, 2019, the record date for the Harris stockholder meeting, are entitled to notice of, and to vote at, the Harris stockholder meeting or any adjournment or postponement of the Harris stockholder meeting. Harris stockholders may cast one vote for each share of Harris common stock that Harris stockholders owned as of that record date.

Assuming a quorum is present at the Harris stockholder meeting, the Harris share issuance proposal requires the affirmative vote of a majority of votes cast on the proposal. An abstention will have the same effect as a vote

“AGAINST” the Harris share issuance proposal, while a broker non-vote or other failure to vote will have no effect on the outcome of the Harris share issuance proposal.

Assuming a quorum is present at the Harris stockholder meeting, the Harris charter amendment proposal requires the affirmative vote of a majority of the outstanding shares of Harris common stock entitled to vote on such proposal. A failure to vote, a broker non-vote or an abstention will have the same effect as a vote “AGAINST” the Harris charter amendment proposal.

Assuming a quorum is present at the Harris stockholder meeting, approval of the Harris compensation proposal requires the affirmative vote of the majority of shares present in person or represented by proxy at the Harris stockholder meeting and entitled to vote on the subject matter. An abstention will have the same effect as a vote “AGAINST” the Harris compensation proposal, while a broker non-vote or other failure to vote will have no effect on the outcome of the Harris compensation proposal.

Whether or not there is a quorum, the approval of the Harris adjournment proposal requires the affirmative vote of the holders of a majority of the voting shares of Harris common stock represented at the Harris stockholder meeting. Accordingly, an abstention will have the same effect as a vote “AGAINST” the Harris adjournment proposal, while a broker non-vote or other failure to vote will have no effect on the outcome of the Harris adjournment proposal.

The L3 Stockholder Meeting (Page 71)

The L3 stockholder meeting will be held on April 4, 2019, beginning at 10:00 a.m., Eastern time, at the offices of Simpson Thacher & Bartlett LLP, located at 425 Lexington Avenue, New York, New York 10017. The purposes of the L3 stockholder meeting are as follows:

Completion of the merger is conditioned on adoption of the merger agreement by L3’s stockholders. Approval of the advisory proposal concerning the merger-related compensation arrangements for L3’s named executive officers is not a condition to the obligation of either L3 or Harris to complete the merger.

Only holders of record of issued and outstanding shares of L3 common stock as of the close of business on February 22, 2019, the record date for the L3 stockholder meeting, are entitled to notice of, and to vote at, the L3 stockholder meeting or any adjournment or postponement of the L3 stockholder meeting. L3 stockholders may cast one vote for each share of L3 common stock that L3 stockholders owned as of that record date.

Assuming a quorum is present at the L3 stockholder meeting, the L3 merger agreement proposal requires the affirmative vote of a majority of the outstanding shares of L3 common stock entitled to vote thereon. Shares of L3 common stock not present, and shares present and not voted, whether by broker non-vote, abstention or otherwise, will have the same effect as votes cast “AGAINST” the proposal to approve the merger agreement.

Assuming a quorum is present at the L3 stockholder meeting, approval of the L3 compensation proposal requires the affirmative vote of a majority of the votes cast at the L3 stockholder meeting on this proposal. Accordingly, an L3 stockholder’s abstention from voting, broker non-votes or an L3 stockholder’s other failure to vote, will have no effect on the outcome of the L3 compensation proposal.

Whether or not there is a quorum, the approval of the L3 adjournment proposal requires the affirmative vote of a majority in voting power of the shares of L3 common stock represented at the L3 stockholder meeting. Accordingly, an abstention will have the same effect as a vote “AGAINST” the L3 adjournment proposal, while a broker non-vote or other failure to vote will have no effect on the outcome of the L3 adjournment proposal.

Interests of Harris’ Directors and Executive Officers in the Merger (Page 166)

In considering the Harris board of directors’ recommendation to vote for the proposals to approve the share issuance and adopt the charter amendment, Harris stockholders should be aware that Harris’ directors and

executive officers have interests in the merger that are different from, or in addition to, those of Harris stockholders generally. These interests include, among others:

Members of the Harris board of directors were aware of and considered these interests, among other matters, in evaluating and negotiating the merger agreement and the merger, and in recommending to Harris stockholders that the share issuance be approved and charter amendment be adopted. For more information, see the section entitled “Interests of Harris’ Directors and Executive Officers in the Merger” beginning on page 166. The interests are described in more detail below, and certain of them are quantified in the narrative and in the section entitled “Interests of Harris’ Directors and Executive Officers in the Merger—Quantification of Payments and Benefits to Harris’ Named Executive Officers—Golden Parachute Compensation” beginning on page 172.

Interests of L3’s Directors and Executive Officers in the Merger (Page 174)

In considering the L3 board of directors’ recommendation to vote for the proposal to approve the merger agreement, L3 stockholders should be aware that the directors and executive officers of L3 have interests in the merger that are different from, or in addition to, the interests of L3 stockholders generally. These interests include, among others:

the earned cash award (based on the reduced service period through the effective time) will be paid in cash within 30 days after the effective time of the merger. The remaining portion of the earned cash award will vest at the end of the performance period, subject to the award holder’s continued service through the end of the performance period. These awards will be subject to accelerated vesting in the event of certain qualifying terminations following the merger.

The L3 board of directors was aware of these interests and considered them, among other matters, in evaluating and negotiating the merger agreement and approving the merger, and in recommending the adoption of the merger agreement by L3 stockholders. For more information, see the section entitled “Interests of L3’s Directors and Executive Officers in the Merger” beginning on page 174. The interests are described in more detail below, and certain of them are quantified in the narrative and in the section entitled, “Interests of L3’s Directors and Executive Officers in the Merger—Quantification of Payments and Benefits to L3’s Named Executive Officers—Golden Parachute Compensation” beginning on page 179.

Governance of the Combined Company (Page 124, Annex A and Annex B)

The merger agreement and the charter amendment, copies of which are attached to this joint proxy statement/prospectus as Annex A and Annex B, respectively, contain certain provisions relating to the governance of the combined company following completion of the merger, which reflect the merger of equals structure of the proposed business combination.

Board of Directors

As of the effective time, the board of directors of the combined company will consist of 12 directors, including:

Each of the Harris designees and the L3 designees must meet the independence standards of the NYSE with respect to the combined company as of the effective time. From the closing until the third anniversary of the closing, any action to change the number of directors or fill any board vacancy requires approval of at least 75% of the then-serving directors of the combined company.

As of the date of this joint proxy statement/prospectus, other than as set forth above, the individuals to serve on the board of directors of the combined company at the effective time have not been determined.

Executive Chairman, Vice Chairman and Lead Independent Director

From the closing until the third anniversary of the closing, the Harris CEO will serve as the executive chairman of the board of directors of the combined company and the L3 CEO will serve as the vice chairman of the board of directors of the combined company, with the removal of either of the foregoing individuals during such time requiring the approval of at least 75% of the then-serving independent directors of the combined company.

As of the effective time, one of the L3 designees, as designated by L3 prior to the effective time, will serve as the lead independent director of the board of directors of the combined company, with the removal of such individual prior to the third anniversary of the closing requiring the approval of at least 75% of the then-serving independent directors excluding the lead independent director.

Committees of the Board of Directors

During the period from the closing until the third anniversary of the closing, the board of directors of the combined company will have four standing committees: the audit committee, the compensation committee, the nominating and governance committee and the finance committee. As of the effective time, each such committee will have an equal number of former Harris directors and former L3 directors, with at least four total members, and the members of each committee will be designated and approved by at least 75% of the then-serving directors until the third anniversary of the closing.

As of the effective time, the chairperson of each of the audit committee and the nominating and governance committee will be a former L3 director, and the chairperson of each of the finance committee and the compensation committee will be a former Harris director.

Chief Executive Officer

From the closing until the second anniversary of the closing, unless at least 75% of the then-serving independent directors adopt a resolution to the contrary, the Harris CEO will serve as the chief executive officer of the combined company.

From the second anniversary of the closing until his resignation, removal or other permanent cessation of service, the L3 CEO will serve as the chief executive officer of the combined company, unless prior to the third anniversary of the closing, at least 75%, and after the third anniversary of the closing, a majority, of the then-serving independent directors adopt a resolution to the contrary.

President and Chief Operating Officer

From the closing until the second anniversary of the closing, unless at least 75% of the then-serving independent directors adopt a resolution to the contrary, the L3 CEO will serve as the president and chief operating officer of the combined company.

Headquarters

As of the effective time, the headquarters of the combined company will be located in Melbourne, Florida.

Name

As of the effective time, the name of the combined company will be “L3 Harris Technologies, Inc.”

For a more complete description of the governance arrangements of the combined company, please see the sections entitled “The Merger—Governance of the Combined Company” beginning on page 124 and “The Merger Agreement—Combined Company Governance Matters” beginning on page 133.

Certain Beneficial Owners of Harris Common Stock (Page 208)

At the close of business on February 22, 2019, directors and executive officers of Harris beneficially owned and were entitled to vote approximately 481,235 shares of Harris common stock, collectively representing 0.4% of the shares of Harris common stock outstanding on February 22, 2019. Although none of them has entered into any agreement obligating them to do so, Harris currently expects that all of its directors and executive officers will vote their shares “FOR” the Harris share issuance proposal, “FOR” the Harris charter amendment proposal, “FOR” the Harris compensation proposal and “FOR” the Harris adjournment proposal. For more information regarding the security ownership of Harris directors and executive officers, see the information provided in the section entitled “Certain Beneficial Owners of Harris Common Stock—Security Ownership of Harris Directors and Executive Officers” beginning on page 208.

Certain Beneficial Owners of L3 Common Stock (Page 210)

At the close of business on February 22, 2019, directors and executive officers of L3 beneficially owned and were entitled to vote approximately 361,069 shares of L3 common stock, collectively representing 0.46% of the shares of L3 common stock outstanding on February 22, 2019. Although none of them has entered into any agreement obligating them to do so, L3 currently expects that all of its directors and executive officers will vote their shares “FOR” the L3 merger agreement proposal, “FOR” the L3 compensation proposal, and “FOR” the L3 adjournment proposal. For more information regarding the security ownership of L3 directors and executive officers, see the information provided in the section entitled “Certain Beneficial Owners of L3 Common Stock—Security Ownership of L3 Directors and Executive Officers” beginning on page 210.

Reasonable Best Efforts and Regulatory Approvals (Page 122)

Harris and L3 have agreed to cooperate with each other and use, and will cause their respective subsidiaries to use, their respective reasonable best efforts to take or cause to be taken all actions, and do or cause to be done all things reasonably necessary, proper or advisable on its part under the merger agreement and applicable law to consummate and make effective the transactions contemplated by the merger agreement as soon as reasonably practicable, including preparing and filing as promptly as reasonably practicable and advisable all documentation to effect all necessary notices, reports and other filings and to obtain as promptly as reasonably practicable all consents, registrations, approvals, permits and authorizations necessary or advisable to be obtained from any third party or any governmental entity in order to consummate such transactions.

As part of the original formation of L3 in 1997, Lockheed Martin Corporation, which is referred to as LMC, agreed to guarantee certain pension obligations that L3 assumed as part of its formation. Following the announcement of the proposed merger, LMC contacted L3 to discuss the implications of the merger on LMC’s guaranty of these obligations. L3 and LMC are engaged in ongoing discussions to evaluate whether and the extent to which the merger agreement affects LMC’s guaranty obligations. While L3 cannot predict the outcome of such discussions, L3 currently does not believe that the resolution of this matter will prevent or delay the completion of the merger or materially adversely affect the combined company’s business, financial condition, results of operations and cash flows.

Harris and L3 are required under the merger agreement to accept or agree to certain conditions (as described in the section entitled “The Merger Agreement—Cooperation; Efforts to Consummate” beginning on page 144), including potential asset divestitures, in order to obtain such regulatory approvals.

The completion of the merger is subject to the receipt of antitrust clearance, or the making of advisable filings, in the United States, the European Union, Australia, Canada and Turkey, and the authorizations, consents, orders, approvals, filings and declarations and all expirations of all waiting periods required in such jurisdictions are referred to as the requisite regulatory approvals, except that:

With respect to the United States, under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended, which is referred to as the HSR Act, and the rules promulgated thereunder, the merger may not be completed until notification and report forms have been filed with the Federal Trade Commission, which is referred to as the FTC, and the Department of Justice, which is referred to as the DOJ, and the applicable waiting period (or any extensions thereof) has expired or been terminated. Harris and L3 each filed a notification and report form under the HSR Act, which is referred to as an HSR notification, with the FTC and the DOJ on November 9, 2018. Harris voluntarily withdrew its HSR notification effective as of December 10, 2018 and re-filed its HSR notification on December 11, 2018, which is referred to as the re-filed notification. As part of the DOJ's review of the merger, L3 and Harris each received on January 10, 2019 a request for additional information and documentary materials, which is referred to as the second request, from the DOJ, which extends the waiting period under the HSR Act until 30 days after both L3 and Harris have complied with the second request or such later time as the parties may agree with the DOJ, unless the waiting period is terminated earlier. L3 and Harris continue to expect the merger to close in the previously announced timeframe of mid-calendar year 2019.

With respect to the regulatory approvals or advisable filings in the European Union, Australia, Canada, Turkey and, under certain circumstances, the United Kingdom and Germany, the merger may not be completed until cleared or otherwise authorized by the competent authorities or the applicable waiting period has expired or advisable filings have been made. With respect to these jurisdictions, Harris and L3 filed the appropriate submissions with the Competition Bureau in Canada on February 8, 2019 and intend to prepare and file additional notices and applications to satisfy the filing requirements and to obtain the regulatory clearances that are required or advisable.

As part of the regulatory approval process, Harris is proactively exploring a possible sale of its Night Vision business.

Although not a condition to the closing of the merger, in January 2019, Harris and L3 filed applications with the Federal Communications Commission, which is referred to as the FCC, to transfer control of certain of L3's licenses to Harris. Harris and L3 expect that these transfer requests will be granted expeditiously.

Ownership of the Combined Company after the Merger (Page 123)

As of the date of this joint proxy statement/prospectus, based on the estimated number of shares of common stock of Harris and L3 that will be outstanding immediately prior to the completion of the merger and the exchange ratio of 1.30, Harris and L3 estimate that holders of shares of Harris common stock as of immediately prior to the completion of the merger will hold, in the aggregate, approximately 54% of the issued and outstanding shares of common stock of the combined company immediately following the completion of the merger, and holders of shares of L3 common stock as of immediately prior to the completion of the merger will hold, in the aggregate, approximately 46% of the issued and outstanding shares of common stock of the combined company immediately following the completion of the merger.

No Appraisal Rights (Page 205)

Neither Harris stockholders nor L3 stockholders are entitled to dissenters’ rights under the DGCL.

Information about how Harris stockholders may vote on the proposals solicited in connection with the merger can be found under the section entitled “The Harris Stockholder Meeting” beginning on page 60. Information about how L3 stockholders may vote on the proposals solicited in connection with the merger can be found under the section entitled “The L3 Stockholder Meeting” beginning on page 71.

Conditions to the Completion of the Merger (Page 149)

Each party’s obligation to effect the merger is subject to the satisfaction at closing or waiver at or prior to closing of each of the following conditions:

In addition, the obligations of L3 to effect the merger are subject to the satisfaction or waiver of the following additional conditions:

For a more complete summary of the conditions that must be satisfied or waived prior to completion of the merger, see the section entitled “The Merger Agreement—Conditions to the Completion of the Merger” beginning on page 149.

No Solicitation of Acquisition Proposals (Page 140)

Harris and L3 have agreed that neither Harris nor L3, nor any of their respective subsidiaries, will, and that they will use their respective reasonable best efforts to cause their and their respective subsidiaries’ representatives (as defined in the section entitled “The Merger Agreement—No Solicitation of Acquisition Proposals” beginning on page 140) not to, directly or indirectly:

Notwithstanding the restrictions described above, prior to the time, but not after, in the case of L3, the required L3 vote is obtained or, in the case of Harris, the required Harris vote is obtained, in response to an unsolicited, bona fide written acquisition proposal received after the date of the merger agreement that did not arise from or in connection with a breach of the above obligations, Harris or L3, as applicable, may:

in each case only if, prior to doing so, the Harris board of directors or L3 board of directors, as applicable, determines in good faith after consultation with its outside legal counsel that (a) based on the information then available and after consultation with its financial advisor such acquisition proposal either constitutes a superior proposal (as defined in the section entitled “The Merger Agreement—No Solicitation of Acquisition Proposals” beginning on page 140) or would reasonably be expected to result in a superior proposal and (b) failure to take such action would be inconsistent with the directors’ fiduciary duties under applicable law.

No Change of Recommendation (Page 142)

Harris and L3 have agreed that, except as otherwise set forth in the merger agreement, neither the Harris board of directors nor the L3 board of directors, including any committee thereof, will:

Notwithstanding anything in the merger agreement to the contrary, prior to the time, in the case of L3, the required L3 vote is obtained or, in the case of Harris, the required Harris vote is obtained, the L3 board of directors or the Harris board of directors, as applicable, may effect a change of recommendation if:

Prior to making any change of recommendation, Harris or L3, as applicable, is required to deliver to the other a written notice of such action and the basis for such change of recommendation four business days in advance stating in writing that the Harris board of directors or the L3 board of directors, as applicable, intends to consider whether to take such action and (a) in the case of a superior proposal, provide the notice required for receipt of an acquisition proposal and (b) in the case of an intervening event, include a reasonably detailed description of the intervening event. After giving such notice and prior to effecting such change of recommendation, Harris or L3, as applicable, must negotiate in good faith with the other (to the extent the other wishes to negotiate) to make such revisions to the terms of the merger agreement that would permit the Harris board of directors or the L3 board of directors, as applicable, not to effect a change of recommendation in response thereto. At the end of such four-business-day period, prior to and as a condition to taking action to effect a change of recommendation, the Harris board of directors or L3 board of directors, as applicable, must take into consideration any changes to the terms of the merger agreement proposed in writing by the other party and any other information offered by the other party in response to the notice and must determine in good faith

after consultation with its outside legal counsel and its financial advisor that (a) such superior proposal would continue to constitute a superior proposal or such intervening event remains in effect and (b) the failure to effect a change of recommendation in response to such superior proposal or intervening event would be inconsistent with the directors’ fiduciary duties under applicable law, in each case, if such changes offered in writing by the other party were to be given effect.

Any material amendment to any acquisition proposal will be deemed to be a new acquisition proposal for the purposes of the obligations described above except that references to “four business days” will be deemed to be references to “two business days.”

Nothing described in this section will prevent Harris or L3 from complying with its disclosure obligations under United States federal or state law with regard to an acquisition proposal or making any “stop, look and listen” or similar communication of the type contemplated by Rule 14d-9(f) of the Exchange Act, except that neither Harris nor L3 may effect a change of recommendation except as described in this section.

Termination of the Merger Agreement (Page 150)

Termination by Mutual Consent

The merger agreement may be terminated and the merger and the other transactions contemplated by the merger agreement may be abandoned at any time prior to the effective time by mutual written consent of L3 and Harris by action of their respective boards of directors.

Termination by Either Harris or L3

Either Harris or L3 may terminate the merger agreement by action of its respective board of directors at any time prior to the effective time if:

Termination by Harris

Harris may terminate the merger agreement and the merger may be abandoned at any time prior to the effective time by action of the Harris board of directors:

Termination by L3

L3 may terminate the merger agreement and the merger may be abandoned at any time prior to the effective time by action of the L3 board of directors:

Termination Fees (Page 152)

L3 will be required to pay to Harris a termination fee of $590 million if the merger agreement is terminated (with each following termination right as defined in the section entitled “The Merger Agreement—Termination of the Merger Agreement” beginning on page 150):

Harris will be required to pay to L3 a termination fee of $700 million if the merger agreement is terminated (with each following termination right as defined in the section entitled “The Merger Agreement—Termination of the Merger Agreement” beginning on page 150):

Accounting Treatment (Page 126)

Harris and L3 each prepare their respective financial statements in accordance with accounting principles generally accepted in the United States, which are referred to as GAAP. The merger will be accounted for using the acquisition method of accounting, and Harris will be treated as the accounting acquirer.

Material U.S. Federal Income Tax Consequences (Page 181)

For U.S. federal income tax purposes, the merger is intended to be treated as a “reorganization” within the meaning of Section 368(a) of the Code. Generally, for U.S. federal income tax purposes, if you are a U.S. holder (as defined in the section entitled “Material U.S. Federal Income Tax Consequences” beginning on page 181) of L3 common stock, you will only recognize gain or loss equal to the difference between (a) the sum of cash you receive in lieu of fractional shares of Harris common stock and (b) your adjusted tax basis in such fractional share of Harris common stock. If you are a non-U.S. holder (as defined in the section entitled “Material U.S. Federal Income Tax Consequences” beginning on page 181) of L3 common stock, the merger will generally not result in tax to you under U.S. federal income tax laws unless you have certain connections to the United States. Because individual circumstances may differ, it is recommended that you consult your own tax advisor to determine the particular tax effects of the merger to you.

You should read the section entitled “Material U.S. Federal Income Tax Consequences” beginning on page 181 for a more complete discussion of the material U.S. federal income tax consequences of the merger.

Comparison of Stockholders’ Rights (Page 185)

Upon completion of the merger, L3 stockholders receiving shares of Harris common stock will become stockholders of the combined company, and their rights will be governed by Delaware law and the governing corporate documents of the combined company in effect at the effective time, the forms of which are exhibits to the merger agreement attached as Annex A to this joint proxy statement/prospectus. L3 stockholders will have different rights once they become stockholders of the combined company due to differences between the governing corporate documents of L3 and the proposed governing corporate documents of the combined company. These differences are described in more detail under the section entitled “Comparison of Stockholders’ Rights” beginning on page 185.

Listing of Harris Common Stock; Delisting and Deregistration of L3 Common Stock (Page 127)

If the merger is completed, the shares of Harris common stock to be issued in the merger will be listed for trading on the NYSE. Harris and L3 have agreed to cooperate in good faith to identify a ticker symbol under which shares of common stock of the combined company will trade on the NYSE after completion of the merger, which Harris will cause to be reserved prior to or as of the effective time.

In addition, if the merger is completed, L3 common stock will be delisted from the NYSE and deregistered under the Exchange Act.

Litigation Related to the Merger (Page 127)

Following the public announcement of the merger, purported stockholders of L3 have filed three putative class action lawsuits and one individual lawsuit against L3 and the members of L3’s board of directors (and, in the case of one of the putative class actions, also against Harris and Merger Sub). The lawsuits contain substantially similar allegations contending, among other things, that the registration statement on Form S-4, of which this joint proxy statement/prospectus forms a part, misstates or fails to disclose certain allegedly material information in violation of federal securities laws. The lawsuits seek injunctive relief enjoining the merger, damages and costs, among other remedies. L3, Harris, Merger Sub and the L3 board of directors believe these lawsuits are without merit and intend to defend against them vigorously. The defendants have not yet answered or otherwise responded to the complaints.

Risk Factors (Page 44)

In evaluating the merger agreement, the merger or the issuance of shares of Harris common stock in the merger, you should carefully read this joint proxy statement/prospectus and give special consideration to the factors discussed in the section entitled “Risk Factors” beginning on page 44.

SELECTED HISTORICAL CONSOLIDATED FINANCIAL DATA OF HARRIS

The following table presents selected historical consolidated financial data for Harris as of and for the fiscal years ended June 29, 2018, June 30, 2017, July 1, 2016, July 3, 2015 and June 27, 2014 and as of and for the two quarters ended December 28, 2018 and December 29, 2017. The selected historical consolidated financial data as of and for the fiscal years ended June 29, 2018 and June 30, 2017 were derived from Harris’ audited consolidated financial statements included in its Current Report on Form 8-K filed with the SEC on December 13, 2018, which is incorporated herein by reference. The selected historical consolidated financial data as of December 28, 2018 and for the two quarters ended December 28, 2018 and December 29, 2017 were derived from Harris’ unaudited condensed consolidated financial statements included in Harris’ Quarterly Report on Form 10-Q for the quarter ended December 28, 2018, incorporated herein by reference. Harris’ unaudited condensed consolidated financial statements as of December 28, 2018 and for the two quarters ended December 28, 2018 and December 29, 2017 include, in Harris’ opinion, all adjustments consisting of normal and recurring adjustments considered necessary for a fair presentation of the results for these periods.

Harris’ audited consolidated financial statements included in its Annual Report on Form 10-K for the fiscal year ended June 29, 2018 did not reflect the adoption of ASC 606, Revenue from Contracts with Customers, or ASU 2017-07, Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, each of which Harris adopted effective June 30, 2018 on a retrospective basis. As a result, Harris has recast its audited financial statements for the fiscal years ended June 29, 2018 and June 30, 2017 in its Current Report on Form 8-K filed with the SEC on December 13, 2018 to reflect the retrospective adoption of ASC 606 and ASU 2017-07. The selected historical consolidated financial data for the fiscal years ended July 1, 2016, July 3, 2015 and June 27, 2014 have not been recast to reflect the adoption of ASC 606 or ASU 2017-07 and have been derived from Harris’ Annual Report on Form 10-K for the fiscal year ended June 29, 2018.

The selected historical consolidated financial data is not necessarily indicative of future results of Harris and should be read together with the other information contained in the section entitled “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and the consolidated financial statements and related notes in Harris’ Current Report on Form 8-K filed with the SEC on December 13, 2018 and Quarterly Report on Form 10-Q for the quarter ended December 28, 2018, each of which is incorporated herein by reference.

See the section entitled “Where You Can Find More Information” beginning on page 215.

SELECTED HISTORICAL CONSOLIDATED FINANCIAL DATA OF L3

The following table presents selected historical consolidated financial data for L3 as of and for the years ended December 31, 2017, 2016, 2015, 2014 and 2013 and as of and for the three quarters ended September 28, 2018 and September 29, 2017. The selected historical consolidated financial data as of and for each of the years ended December 31, 2017, 2016, 2015, 2014 and 2013 were derived from L3’s Current Report on Form 8-K filed on November 13, 2018, incorporated herein by reference. The selected historical consolidated financial data as of September 28, 2018 and for the three quarters ended September 28, 2018 and September 29, 2017 were derived from L3’s unaudited condensed consolidated financial statements included in L3’s Quarterly Report on Form 10-Q for the quarter ended September 28, 2018, incorporated herein by reference. L3’s unaudited condensed consolidated financial statements as of September 28, 2018 and for the three quarters ended September 28, 2018 and September 29, 2017 include, in L3’s opinion, all adjustments consisting of normal and recurring adjustments considered necessary for a fair presentation of the results for these periods.

Effective January 1, 2018, L3 adopted ASC 606, using the modified retrospective transition method. In accordance with the modified retrospective transition method, the statement of operations and per share data for the three quarters ended September 28, 2018 is presented under ASC 606, while the statement of operations and per share data for the three quarters ended September 29, 2017, and all other prior periods, are presented under ASC 605, Revenue Recognition, the accounting standard in effect for L3 for periods ending prior to January 1, 2018. Furthermore, under the modified retrospective transition method, the balance sheet data at September 28, 2018 is presented under ASC 606, while the balance sheet data at September 29, 2017 and all prior periods are presented under ASC 605. The cumulative effect of the change in accounting for periods prior to January 1, 2018 was recognized through retained earnings at the date of adoption. Note 3, New Accounting Standards Implemented, to L3’s Quarterly Report on Form 10-Q for the quarter ended September 28, 2018, incorporated herein by reference, presents the cumulative effect of the changes on L3’s December 31, 2017 balance sheet.

The selected historical consolidated financial data set forth below is not necessarily indicative of future results of L3 and should be read together with the other information contained in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and the consolidated financial statements and related notes included in L3’s Current Report on Form 8-K filed on November 13, 2018 and Quarterly Report on Form 10-Q for the quarter ended September 28, 2018, each of which is incorporated herein by reference. L3’s results of operations, cash flows and financial condition are affected significantly, in some periods, by business acquisitions, the more significant of which are described in the documents incorporated herein by reference.

See the section entitled “Where You Can Find More Information” beginning on page 215.

SELECTED UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

The following table shows a summary of the unaudited pro forma condensed combined financial information about the financial condition and results of operations of the combined company, after giving effect to the merger, which were prepared using the acquisition method of accounting with Harris as the accounting acquirer of L3. See the section entitled “The Merger—Accounting Treatment” beginning on page 126. The unaudited pro forma condensed combined balance sheet as of December 28, 2018 is based on the individual historical consolidated balance sheets of Harris and L3, and has been prepared to reflect the merger as if it had occurred on December 28, 2018, which was the end of Harris’ second quarter of fiscal 2019. The unaudited pro forma condensed combined statements of income for the two quarters ended December 28, 2018 and the fiscal year ended June 29, 2018 combine the historical results of operations of Harris and L3, and have been prepared to reflect the merger as if it had occurred on July 1, 2017, the first day of Harris’ fiscal 2018.

Harris’ fiscal year ends on the Friday nearest June 30, and L3’s fiscal year ends on December 31. As a consequence of Harris’ and L3’s different fiscal years:

The following selected unaudited pro forma condensed combined financial information has been prepared for illustrative purposes only and is not necessarily indicative of what the combined company’s operating results or financial position would actually have been had the merger been completed as of the dates indicated. In addition, the selected unaudited pro forma condensed combined financial information includes adjustments which are preliminary and may be revised. The selected unaudited pro forma condensed combined financial information does not purport to project the future financial position or operating results of the combined company. Future results may vary significantly from the results reflected because of various factors, including those discussed in the section entitled “Risk Factors” beginning on page 44.

The following selected unaudited pro forma condensed combined financial information has been developed from and should be read in conjunction with the section entitled “Unaudited Pro Forma Condensed Combined Financial Statements” and the notes related thereto beginning on page 154 and with the historical consolidated financial statements of Harris and L3 and related notes that have been filed with the SEC, certain of which are incorporated by reference into this joint proxy statement. See the section entitled “Where You Can Find More Information” beginning on page 215.

COMPARATIVE HISTORICAL AND UNAUDITED PRO FORMA PER SHARE DATA

The following selected unaudited pro forma per share information for the fiscal year ended June 29, 2018 and the two quarters ended December 28, 2018 reflects the merger and related transactions as if they had occurred on July 1, 2017. The book value per share amounts in the table below reflect the merger as if it had occurred on December 28, 2018. The information in the table is based on, and should be read together with, the historical financial information that Harris and L3 have presented in their respective filings with the SEC and with the unaudited pro forma condensed combined financial information contained in the section entitled “Unaudited Pro Forma Condensed Combined Financial Statements” and the notes related thereto beginning on page 154. See also the section entitled “Where You Can Find More Information” beginning on page 215.

The unaudited pro forma combined per share data is presented for illustrative purposes only and is not necessarily indicative of actual or future financial condition or results of operations that would have been realized if the merger had been completed as of the dates indicated or will be realized upon the completion of the merger. The summary pro forma information is preliminary, based on initial estimates of the fair value of assets acquired (including intangible assets) and liabilities assumed, and is subject to change as more information regarding the fair values is obtained, which changes could be materially different than the initial estimates. The L3 equivalent pro forma data are calculated by multiplying the pro forma combined per share data by the exchange ratio.

Both Harris and L3 declared and paid dividends during the periods presented. Following the completion of the merger, the declaration of dividends will be at the discretion of the combined company’s board of directors and will be determined after consideration of various factors, including earnings, cash requirements, the financial condition of the combined company, the DGCL, government regulations and other factors deemed relevant by the combined company’s board of directors.

COMPARISON OF HARRIS AND L3 MARKET PRICES AND
IMPLIED VALUE OF MERGER CONSIDERATION

The following table sets forth the closing sale price per share of Harris common stock and L3 common stock as reported on the NYSE as of October 12, 2018, the last trading day prior to the public announcement of the merger, and on February 22, 2019, the last practicable trading day before the filing of this joint proxy statement/prospectus with the SEC. The table also shows the estimated implied value of the per share consideration proposed for each share of L3 common stock as of the same two dates. This implied value was calculated by multiplying the closing price of a share of Harris common stock on the relevant date by the exchange ratio of 1.30 shares of Harris common stock for each share of L3 common stock.

The market prices of Harris common stock and L3 common stock have fluctuated since the date of the announcement of the merger agreement and will continue to fluctuate prior to the completion of the merger. No assurance can be given concerning the market prices of Harris common stock or L3 common stock before completion of the merger or of the common stock of the combined company after completion of the merger. Because the exchange ratio is fixed and will not be adjusted for changes in the market prices of either Harris common stock or L3 common stock, the market price of Harris common stock (and, therefore, the value of the merger consideration) when received by L3 stockholders after the merger is completed could be greater than, less than or the same as shown in the table above. Accordingly, these comparisons may not provide meaningful information to Harris stockholders and L3 stockholders in determining how to vote with respect to the proposals described in this joint proxy statement/prospectus. Harris stockholders and L3 stockholders are encouraged to obtain current market quotations for Harris common stock and L3 common stock and to review carefully the other information contained in this joint proxy statement/prospectus or incorporated by reference into this joint proxy statement/prospectus. For more information, see the section entitled “Where You Can Find More Information” beginning on page 215.

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS

This registration statement on Form S-4, of which this joint proxy statement/prospectus forms a part, and the documents to which L3 and Harris refer you to in this registration statement, as well as oral statements made or to be made by L3 and Harris, include certain “forward-looking statements” within the meaning of, and subject to the safe harbor created by, Section 27A of the Securities Act, Section 21E of the Exchange Act and the Private Securities Litigation Reform Act of 1995, which are referred to as the safe harbor provisions with respect to the businesses, strategies and plans of Harris and L3, their expectations relating to the merger and their future financial condition and performance. Statements included in or incorporated by reference into this registration statement, of which this joint proxy statement/prospectus forms a part, that are not historical facts are forward-looking statements, including statements about the beliefs and expectations of the management of each of Harris and L3. Harris and L3 use words such as “anticipates,” “believes,” “plans,” “expects,” “projects,” “future,” “intends,” “may,” “will,” “likely,” “should,” “could,” “estimates,” “predicts,” “potential,” “continue,” “guidance,” and similar expressions to identify these forward-looking statements that are intended to be covered by the safe harbor provisions. Harris and L3 caution investors that any forward-looking statements are subject to risks and uncertainties that may cause actual results and future trends to differ materially from those matters expressed in, or implied or projected by, such forward-looking statements, which speak only as of the date of this joint proxy statement/prospectus. Investors are cautioned not to place undue reliance on these forward-looking statements. Among the risks and uncertainties that could cause actual results to differ from those described in forward-looking statements are the following:

For further discussion of these and other risks, contingencies and uncertainties applicable to Harris and L3, see the section entitled “Risk Factors” beginning on page 44 and in Harris’ and L3’s other filings with the SEC incorporated by reference into this joint proxy statement/prospectus. See also the section entitled “Where You Can Find More Information” beginning on page 215 for more information about the SEC filings incorporated by reference into this joint proxy statement/prospectus.

All subsequent written or oral forward-looking statements attributable to Harris or L3 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. Neither L3 nor Harris is under any obligation, and each expressly disclaims any obligation, to update, alter, or otherwise revise any forward-looking statements, whether written or oral, that may be made from time to time, whether as a result of new information, future events, or otherwise, except as may be required by law. Readers are cautioned not to place undue reliance on these forward-looking statements which speak only as of the date hereof.

RISK FACTORS

In deciding whether to vote for the adoption of the merger agreement, in the case of L3 stockholders, or the approval of the share issuance and the adoption of the charter amendment, in the case of Harris stockholders, you are urged to carefully consider all of the information included or incorporated by reference in this joint proxy statement/prospectus, which are listed in the section entitled “Where You Can Find More Information” beginning on page 215. You should also read and consider the risks associated with each of the businesses of Harris and L3 because these risks will also affect the combined company. The risks associated with the business of Harris can be found in the Harris Annual Report on Form 10-K for the fiscal year ended June 29, 2018 and the risks associated with the business of L3 can be found in the L3 Annual Report on Form 10-K for the year ended December 31, 2017, as such risks may be updated or supplemented in each company’s subsequently filed Quarterly Reports on Form 10-Q or Current Reports on Form 8-K (excluding any information and exhibits furnished under Item 2.02 or 7.01 thereof), each of which are incorporated by reference into this joint proxy statement/prospectus. In addition, you are urged to carefully consider the following material risks relating to the merger, the business of Harris, the business of L3 and the business of the combined company.

Risks Relating to the Merger

Because the exchange ratio is fixed and will not be adjusted in the event of any change in either Harris’ or L3’s stock price, the value of the shares of the combined company is uncertain.

Upon completion of the merger, each share of L3 common stock outstanding immediately prior to the merger, other than excluded shares (as defined in the section entitled “The Merger—Exchange Ratio” beginning on page 80), will be converted into and become exchangeable for 1.30 shares of Harris common stock. This exchange ratio is fixed in the merger agreement and will not be adjusted for changes in the market price of either Harris common stock or L3 common stock. The market prices of Harris common stock and L3 common stock have fluctuated since the date of the announcement of the merger agreement and will continue to fluctuate from the date of this joint proxy statement/prospectus to the date of the Harris stockholder meeting and the L3 stockholder meeting, respectively, and the date the merger is consummated, and the market price of the common stock of the combined company will continue to fluctuate thereafter.

Because the value of the merger consideration will depend on the market price of Harris common stock at the time the merger is completed, L3 stockholders will not know or be able to determine at the time of the L3 stockholder meeting the market value of the merger consideration they would receive upon completion of the merger. Similarly, Harris stockholders will not know or be able to determine at the time of the Harris stockholder meeting the market value of the shares of Harris common stock to be issued pursuant to the merger agreement compared to the market value of the shares of L3 common stock that are being exchanged.

Stock price changes may result from a variety of factors, including, among others:

Many of these factors are beyond Harris’ and L3’s control, and neither Harris nor L3 are permitted to terminate the merger agreement solely due to a decline in the market price of the other party. You are urged to obtain current market quotations for Harris common stock and L3 common stock in determining whether to vote for approval of the share issuance and the adoption of the charter amendment in the case of Harris stockholders or for the adoption of the merger agreement in the case of L3 stockholders. In addition, see the section entitled “Comparison of Harris and L3 Market Prices and Implied Value of Merger Consideration” beginning on page 41.

The market price for shares of common stock of the combined company following the completion of the merger may be affected by factors different from, or in addition to, those that historically have affected or currently affect the market prices of shares of Harris common stock and L3 common stock.

Upon consummation of the merger, Harris stockholders and L3 stockholders will both hold shares of common stock in the combined company. Harris’ businesses differ from those of L3, and L3’s businesses differ from those of Harris, and, accordingly, the results of operations of the combined company will be affected by some factors that are different from those currently or historically affecting the results of operations of Harris and those currently or historically affecting the results of operations of L3. The results of operations of the combined company may also be affected by factors different from those that currently affect or have historically affected either Harris or L3. For a discussion of the businesses of each of Harris and L3 and some important factors to consider in connection with those businesses, please see the section entitled “The Parties to the Merger” beginning on page 59 and the documents and information included elsewhere in this joint proxy statement/prospectus or incorporated by reference into this joint proxy statement/prospectus and listed under the section entitled “Where You Can Find More Information” beginning on page 215.

The shares of common stock of the combined company to be received by L3 stockholders as a result of the merger will have rights different from the shares of L3 common stock.

Upon consummation of the merger, the rights of L3 stockholders, who will become stockholders of the combined company, will be governed by the certificate of incorporation and bylaws of the combined company. The rights associated with L3 common stock are different from the rights which will be associated with the common stock of the combined company. See the section entitled “Comparison of Stockholders’ Rights” beginning on page 185 for a discussion of these rights.

Harris stockholders and L3 stockholders will each have reduced ownership and voting interest in and will exercise less influence over management of the combined company.

Harris stockholders currently have the right to vote in the election of the Harris board of directors and on other matters affecting Harris, and L3 stockholders currently have the right to vote in the election of the L3 board of directors and on other matters affecting L3. Upon consummation of the merger, each Harris stockholder and each L3 stockholder will become a stockholder of the combined company with a percentage ownership of the combined company that is smaller than such stockholder’s percentage ownership of Harris or L3, as applicable, immediately prior to the merger. As of the date of this joint proxy statement/prospectus, based on the estimated number of shares of common stock of Harris and L3 that will be outstanding immediately prior to the completion of the merger and the exchange ratio of 1.30, Harris and L3 estimate that holders of shares of Harris common stock as of immediately prior to the completion of the merger will hold, in the aggregate, approximately 54% of the issued and outstanding shares of common stock of the combined company immediately following the completion of the merger, and holders of shares of L3 common stock as of immediately prior to the completion of the merger will hold, in the aggregate, approximately 46% of the issued and outstanding shares of common stock of the combined company immediately following the completion of the merger. Because of this, each share of Harris common stock and each share of L3 common stock will represent a smaller percentage ownership of the combined company than it represented in Harris or L3, respectively. In addition, directors of Harris and directors of L3, as of immediately prior to the effective time, will respectively constitute half of the combined company’s board of directors. Accordingly, Harris stockholders and L3 stockholders will have less influence on the management and policies of the combined company than they now have on the management and policies of Harris or L3, as applicable.

Until the completion of the merger or the termination of the merger agreement in accordance with its terms, Harris and L3 are each prohibited from entering into certain transactions and taking certain actions that might otherwise be beneficial to Harris or L3 and their respective stockholders.

After the date of the merger agreement and prior to the effective time, the merger agreement restricts Harris and L3 from taking specified actions without the consent of the other party and requires that the business of each company and its respective subsidiaries be conducted in all material respects in the ordinary course of business consistent with past practice. These restrictions may prevent Harris or L3 from making appropriate changes to their respective businesses or organizational structures or from pursuing attractive business opportunities that may arise prior to the completion of the merger and could have the effect of delaying or preventing other strategic

transactions. Adverse effects arising from the pendency of the merger could be exacerbated by any delays in consummation of the merger or termination of the merger agreement. See the section entitled “The Merger Agreement—Conduct of Business Prior to the Effective Time” beginning on page 136.

Obtaining required approvals and satisfying closing conditions may prevent or delay completion of the merger.

The merger is subject to a number of conditions to closing as specified in the merger agreement. These closing conditions include, among others, approval for listing on the NYSE of the shares of Harris common stock to be issued pursuant to the merger agreement, the expiration or earlier termination any applicable waiting period, and the receipt of approvals under, domestic and certain foreign antitrust and competition laws, the absence of governmental restraints or prohibitions preventing the consummation of the merger, the effectiveness of the registration statement on Form S-4 registering the Harris common stock issuable in the merger and absence of any stop order or proceedings by the SEC with respect thereto. The obligation of each of L3 and Harris to consummate the merger is also conditioned on, among other things, the receipt by such party of the required tax representation letter from the other party, although this condition would nevertheless not be satisfied if such receiving party’s counsel, due to a change in law, is unable to deliver an opinion based on such representation letters to the effect that for U.S. federal income tax purposes the merger will qualify as a “reorganization” within the meaning of Section 368(a) of the Code, and such receiving party is unable to obtain such an opinion from an alternative tax counsel pursuant to the merger agreement, the absence of a material adverse effect on the other party, the truth and correctness of the representations and warranties made by the other party on the date of the merger agreement and on the closing date (subject to certain materiality qualifiers), and the performance by the other party in all material respects of its obligations under the merger agreement. In addition, the obligation of L3 to consummate the merger is conditioned on the implementation, at the effective time of the merger, of the governance-related matters described in the section entitled “The Merger—Governance of the Combined Company” beginning on page 124. No assurance can be given that the required stockholder, governmental and regulatory consents and approvals will be obtained or that the required conditions to closing will be satisfied, and, if all required consents and approvals are obtained and the conditions are satisfied, no assurance can be given as to the terms, conditions and timing of the consents and approvals. Any delay in completing the merger could cause the combined company not to realize, or to be delayed in realizing, some or all of the benefits that Harris and L3 expect to achieve if the merger is successfully completed within its expected time frame. For a more complete summary of the conditions that must be satisfied or waived prior to completion of the merger, see the section entitled “The Merger Agreement—Conditions to the Completion of the Merger” beginning on page 136.

Harris and L3 must obtain certain regulatory approvals and clearances to consummate the merger, which, if delayed, not granted or granted with unacceptable conditions, could prevent, substantially delay or impair consummation of the merger, result in additional expenditures of money and resources or reduce the anticipated benefits of the merger.

Under the provisions of the HSR Act, the merger may not be completed until the expiration of a statutory waiting period, or the early termination of that waiting period, following the parties’ filing of their respective notification and report forms. Harris and L3 each filed an HSR notification with the FTC and the DOJ on November 9, 2018. Harris voluntarily withdrew its HSR notification effective as of December 10, 2018 and re-filed its HSR notification on December 11, 2018. As part of the DOJ’s review of the merger, L3 and Harris each received on January 10, 2019 the second request from the DOJ, which extends the waiting period under the HSR Act until 30 days after both L3 and Harris have complied with the second request or such later time as the parties may agree with the DOJ, unless the waiting period is terminated earlier. The DOJ could also seek to enjoin completion of the merger or impose conditions on its approval such as requiring the divestiture of assets, businesses or product lines of Harris or L3.

The completion of the merger could be substantially delayed. The votes to adopt the merger agreement, approve the share issuance, and adopt the charter amendment could therefore occur substantially in advance of obtaining regulatory approval. A delay could, among other things, increase the chance that: an event occurs that constitutes a material adverse effect with respect to Harris or L3 and thereby may cause the failure of an L3 closing condition or Harris closing condition, respectively; other adverse effects with respect to Harris or L3

could occur, such as the loss of key personnel, potentially affecting the success of the combined company; or an event could occur that causes a failure of a Harris closing condition or L3 closing condition or that adversely impacts the value of Harris common stock, and thus has a negative impact on the value of the merger consideration.

The completion of the merger is also contingent upon obtaining the requisite regulatory approvals, or the making of advisable filings, in the other jurisdictions described in the section entitled “The Merger—Reasonable Best Efforts and Regulatory Approvals” beginning on page 122. With respect to these jurisdictions, Harris and L3 filed the appropriate submissions with the Competition Bureau in Canada on February 8, 2019 and intend to prepare and file additional notices and applications to satisfy the filing requirements and to obtain the regulatory clearances that are required or advisable. Failure to obtain the necessary clearance in any of these jurisdictions could substantially delay or prevent the consummation of the merger, which could negatively impact both Harris and L3.

As a condition to granting the necessary approvals or clearances, certain governmental agencies may impose requirements, limitations or costs or require divestitures or place restrictions on the conduct of the business of the combined company after the completion of the merger. Any one of these requirements, limitations, costs, divestitures or restrictions could jeopardize or delay the completion of or reduce the anticipated benefits of the merger.

Under the merger agreement, Harris and L3 generally must use their respective reasonable best efforts to obtain all regulatory approvals required to complete the merger as soon as reasonably practicable. Harris and L3 have agreed to dispose of assets, operations or businesses if reasonably necessary, proper or advisable so as to permit the consummation of the merger, although neither L3 nor Harris is required to effect any such disposition if not conditioned upon the completion of the merger or if, individually or in the aggregate with any other such dispositions, would reasonably be expected to be materially adverse to the condition, properties, assets, operations, liabilities or results of operations of the combined company (without taking into account any proceeds received from such disposition). As part of the regulatory approval process, Harris is proactively exploring a possible sale of its Night Vision business.

Although not a condition to the closing of the merger, in January 2019, Harris and L3 filed applications with the Federal Communications Commission, which is referred to as the FCC, to transfer control of certain of L3's licenses to Harris. Harris and L3 expect that these transfer requests will be granted expeditiously, although failure of the FCC to grant these requests could adversely affect the combined company.

Failure to attract, motivate and retain executives and other key employees could diminish the anticipated benefits of the merger.

The success of the merger will depend in part on the retention of personnel critical to the business and operations of the combined company due to, for example, their technical skills or management expertise. Competition for qualified personnel can be intense.

Current and prospective employees of Harris and L3 may experience uncertainty about their future role with Harris and L3 until strategies with regard to these employees are announced or executed, which may impair Harris’ and L3’s ability to attract, retain and motivate key management, sales, marketing, technical and other personnel prior to and following the merger. Employee retention may be particularly challenging during the pendency of the merger, as employees of Harris and L3 may experience uncertainty about their future roles with the combined company. If Harris and L3 are unable to retain personnel, including Harris’ and L3’s key management, who are critical to the successful integration and future operations of the companies, Harris and L3 could face disruptions in their operations, loss of existing customers, loss of key information, expertise or know-how, and unanticipated additional recruitment and training costs. In addition, the loss of key personnel could diminish the anticipated benefits of the merger.

At the effective time, each of L3’s and Harris’ equity awards will, in accordance with the terms and conditions that were applicable to such awards prior thereto, generally vest and be settled in Harris common stock, in the case of L3 equity awards, after giving effect to the exchange ratio. In addition, each of Harris’ and L3’s executive officers are entitled to receive severance benefits upon a qualifying termination of employment following the completion of the merger. Each of Harris’ and L3’s executive officers could potentially terminate

his or her employment following specified circumstances set forth in the applicable Harris CIC severance agreement or L3 change in control severance plan, including certain changes in such executive’s duties or responsibilities (except with respect to certain contemplated changes in connection with the merger for Mr. Brown and Mr. Kubasik), compensation or office location, and become entitled to receive severance. See the section entitled “Interests of Harris’ Directors and Executive Officers in the Merger” beginning on page 166 and the section entitled “Interests of L3’s Directors and Executive Officers in the Merger” beginning on page 174 for a further discussion of some of these issues.

If key employees of Harris or L3 depart, the integration of the companies may be more difficult and the combined company’s business following the merger may be harmed. Furthermore, the combined company may have to incur significant costs in identifying, hiring and retaining replacements for departing employees and may lose significant expertise and talent relating to the business of each of Harris or L3, and the combined company’s ability to realize the anticipated benefits of the merger may be adversely affected. In addition, there could be disruptions to or distractions for the workforce and management associated with activities of labor unions or integrating employees into the combined company. Accordingly, no assurance can be given that the combined company will be able to attract or retain key employees of Harris and L3 to the same extent that those companies have been able to attract or retain their own employees in the past.

The merger, including uncertainty regarding the merger, may cause customers, suppliers or strategic partners to delay or defer decisions concerning Harris and L3 and adversely affect each company’s ability to effectively manage their respective businesses.

The merger will happen only if the stated conditions are met, including the adoption of the merger agreement by L3’s stockholders, the approval of the share issuance and the adoption of the charter amendment by Harris’ stockholders and the receipt of regulatory approvals, among other conditions. Many of the conditions are outside the control of Harris and L3, and both parties also have certain rights to terminate the merger agreement. Accordingly, there may be uncertainty regarding the completion of the merger. This uncertainty may cause customers, suppliers, vendors, strategic partners or others that deal with Harris and L3 to delay or defer entering into contracts with Harris and L3 or making other decisions concerning Harris and L3 or seek to change or cancel existing business relationships with Harris and L3, which could negatively affect their respective businesses. Any delay or deferral of those decisions or changes in existing agreements could have a material adverse effect on the respective businesses of Harris and L3, regardless of whether the merger is ultimately completed.

In addition, the merger agreement restricts Harris, L3 and their respective subsidiaries from making certain acquisitions and taking other specified actions until the merger occurs without the consent of the other parties. These restrictions may prevent Harris and L3 from pursuing attractive business opportunities or strategic transactions that may arise prior to the completion of the merger. See the section entitled “The Merger Agreement—Conduct of Business Prior to the Effective Time” beginning on page 136 for a description of the restrictive covenants to which each of Harris and L3 is subject.

The opinions rendered to Harris and L3 from their respective financial advisors will not reflect changes in circumstances between the dates of such opinions and the completion of the merger.

Morgan Stanley delivered its oral opinion to the Harris board of directors on October 12, 2018, which opinion was subsequently confirmed in a written opinion dated October 12, 2018, that, as of the date of such opinion, and subject to the various assumptions made, procedures followed, matters considered, and qualifications and limitations on the scope of the review undertaken by Morgan Stanley as set forth in its written opinion, the exchange ratio pursuant to the merger agreement was fair from a financial point of view to Harris. Goldman Sachs delivered its oral opinion, subsequently confirmed in writing, to L3’s board of directors that, as of October 12, 2018 and based upon and subject to the factors and assumptions set forth therein, the exchange ratio pursuant to the merger agreement was fair from a financial point of view to the holders (other than Harris and its affiliates) of L3 common stock.

Neither Harris nor L3 has obtained, nor will obtain, an updated opinion regarding the fairness, from a financial point of view, of the exchange ratio as of the date of this joint proxy statement/prospectus or prior to the completion of the merger from Morgan Stanley or from Goldman Sachs. Each of Morgan Stanley’s opinion and Goldman Sachs’s opinion was necessarily based on economic, monetary, market and other conditions as in

effect on, and the information made available to Morgan Stanley and Goldman Sachs, as applicable, only as of the dates of the respective opinions of Morgan Stanley and Goldman Sachs and does not address the fairness of the exchange ratio, from a financial point of view, at the time the merger is completed. Changes in the operations and prospects of Harris or L3, general economic, monetary, market and other conditions and other factors that may be beyond the control of Harris and L3, and on which the opinion of Morgan Stanley and the opinion of Goldman Sachs was based, may alter the value of Harris or L3 or the prices of shares of Harris common stock or L3 common stock by the time the merger is completed. The opinions of Morgan Stanley and Goldman Sachs do not speak as of any date other than the respective dates of such opinions. The recommendation of the Harris board of directors that Harris stockholders vote “FOR” the Harris share issuance proposal, “FOR” the Harris charter amendment proposal and “FOR” the Harris compensation proposal and the recommendation of the L3 board of directors that L3 stockholders vote “FOR” the L3 merger agreement proposal and “FOR” the L3 compensation proposal are each made as of the date of this joint proxy statement/prospectus. For a description of the opinion that L3 and Harris received from their respective financial advisors, please see the sections entitled “The Merger—Opinion of Harris’ Financial Advisor” beginning on page 104 and “The Merger—Opinion of L3’s Financial Advisor” beginning on page 111.

Whether or not the merger is completed, the announcement and pendency of the merger could cause disruptions in the businesses of Harris and L3, which could have an adverse effect on their respective businesses and financial results.

Whether or not the merger is completed, the announcement and pendency of the merger could cause disruptions in the businesses of Harris and L3. Specifically:

In addition, Harris and L3 have each diverted significant management resources in an effort to complete the merger and are each subject to restrictions contained in the merger agreement on the conduct of their respective businesses. If the merger is not completed, Harris and L3 will have incurred significant costs, including the diversion of management resources, for which they will have received little or no benefit.

The merger agreement may be terminated in accordance with its terms and the merger may not be consummated.

Either Harris or L3 may terminate the merger agreement under certain circumstances, including, among other reasons, if the merger is not completed by September 30, 2019 (which date may be extended to December 31, 2019 if certain regulatory approvals are not obtained by September 30, 2019). In addition, if the merger agreement is terminated under certain circumstances specified in the merger agreement, L3 may be required to pay Harris a termination fee of $590,000,000, including certain circumstances in which the L3 board of directors effects a change of recommendation (as defined in the section entitled “The Merger Agreement—No Change of Recommendation” beginning on page 142) or L3 enters into an agreement with respect to a superior proposal (as defined in the section entitled “The Merger Agreement—No Solicitation of Acquisition Proposals” beginning on page 140) following the termination of the merger agreement. In addition, if the merger agreement is terminated under certain circumstances specified in the merger agreement, Harris may be required to pay L3 a termination fee of $700,000,000, including certain circumstances in which the Harris board of directors effects a change of recommendation or Harris enters into an agreement with respect to a superior proposal following the termination of the merger agreement. See the section entitled “The Merger Agreement—Termination of the Merger Agreement” beginning on page 150 and the section entitled “The Merger Agreement—Termination Fees” beginning on page 152 for a more complete discussion of the circumstances under which the merger agreement could be terminated and when a termination fee may be payable by Harris or L3.

The termination of the merger agreement could negatively impact Harris or L3.

If the merger is not completed for any reason, including as a result of L3 stockholders failing to adopt the merger agreement or Harris stockholders failing to approve the share issuance or adopt the charter amendment,

the ongoing businesses of Harris and L3 may be adversely affected and, without realizing any of the benefits of having completed the merger, Harris and L3 would be subject to a number of risks, including the following:

The directors and executive officers of Harris and L3 have interests and arrangements that may be different from, or in addition to, those of Harris and L3 stockholders generally.

When considering the recommendations of the boards of directors of Harris or L3, as applicable, with respect to the proposals described in this joint proxy statement/prospectus, stockholders should be aware that the directors and executive officers of each of Harris and L3 may have interests in the merger, which are different from, or in addition to, those of Harris stockholders and L3 stockholders, generally. These interests include the continued employment of certain executive officers of Harris and L3 by the combined company, the continued service of certain independent directors and executive directors of Harris and L3 as directors of the combined company, the treatment in the merger of outstanding equity, equity-based and incentive awards, severance arrangements, other compensation and benefit arrangements and the right to continued indemnification of former Harris and L3 directors and officers by the combined company.

Harris stockholders and L3 stockholders should be aware of these interests when they consider the recommendations of the respective Harris and L3 boards of directors that they vote to approve the Harris share issuance and adopt the charter amendment, in the case of Harris, or that they adopt the merger agreement, in the case of L3. The Harris board of directors was aware of these interests when it approved and declared advisable the merger agreement and the transactions contemplated thereby on the terms and subject to the conditions set forth in the merger agreement and recommended that Harris stockholders approve the share issuance and adopt the charter amendment. The interests of Harris directors and executive officers are described in more detail in the section entitled “Interests of Harris’ Directors and Executive Officers in the Merger” beginning on page 166. Likewise, the L3 board of directors was aware of these interests when it approved and declared advisable the merger agreement, the merger and the transactions contemplated thereby on the terms and subject to the conditions set forth in the merger agreement, determined that the merger agreement, the merger and the transactions contemplated by the merger agreement were fair to, and in the best interests of, L3 and L3 stockholders and recommended that L3 stockholders adopt the merger agreement. The interests of L3 directors and executive officers are described in more detail in the section entitled “Interests of L3’s Directors and Executive Officers in the Merger” beginning on page 174.

Harris or L3 may waive one or more of the closing conditions without re-soliciting stockholder approval.

Harris or L3 may determine to waive, in whole or part, one or more of the conditions of its obligations to consummate the merger. Harris and L3 currently expect to evaluate the materiality of any waiver and its effect on Harris or L3 stockholders, as applicable, in light of the facts and circumstances at the time to determine whether any amendment of this joint proxy statement/prospectus or any re-solicitation of proxies or voting cards

is required in light of such waiver. Any determination whether to waive any condition to the merger or as to re-soliciting stockholder approval or amending this joint proxy statement/prospectus as a result of a waiver will be made by Harris or L3, as applicable, at the time of such waiver based on the facts and circumstances as they exist at that time.

The merger agreement contains provisions that could discourage a potential competing acquirer that might be willing to pay more to acquire or merge with either Harris or L3.

The merger agreement contains “no shop” provisions that restrict each of Harris’ and L3’s ability to, among other things (each as described under the section entitled “The Merger Agreement—No Solicitation of Acquisition Proposals” beginning on page 140):

Furthermore, there are only limited exceptions to the requirement under the merger agreement that neither Harris’ board of directors nor L3’s board of directors adversely withhold, withdraw, qualify or modify the Harris recommendation or the L3 recommendation, as applicable (each as defined in the section entitled “The Merger Agreement—Representations and Warranties” beginning on page 133). Although Harris’ board of directors is permitted to effect a change of recommendation, after complying with certain procedures set forth in the merger agreement, in response to a superior proposal if it determines in good faith that a failure to do so would be inconsistent with its fiduciary duties, its doing so would entitle L3 to terminate the merger agreement and collect a termination fee from Harris in the amount of $700,000,000. Although L3’s board of directors is permitted to effect a change of recommendation, after complying with certain procedures set forth in the merger agreement, in response to a superior proposal if it determines in good faith that a failure to do so would be inconsistent with its fiduciary duties, its doing so would entitle Harris to terminate the merger agreement and collect a termination fee from L3 in the amount of $590,000,000. For more information, see the sections titled “The Merger Agreement—Termination of the Merger Agreement” beginning on page 150 and “The Merger Agreement—Termination Fees” beginning on page 152.

These provisions could discourage a potential competing acquirer from considering or proposing an acquisition or merger, even if it were prepared to pay consideration with a higher value than that implied by the exchange ratio in the merger, or might result in a potential competing acquirer proposing to pay a lower per share price than it might otherwise have proposed to pay because of the added expense of the termination fee.

Each of Harris and L3 will incur significant transaction, merger-related and restructuring costs in connection with the merger.

Harris and L3 have incurred and expect to incur a number of non-recurring costs associated with combining the operations of the two companies, as well as transaction fees and other costs related to the merger. These costs and expenses include fees paid to financial, legal and accounting advisors, facilities and systems consolidation costs, severance and other potential employment-related costs, including payments that may be made to certain Harris executives and L3 executives, filing fees, printing expenses and other related charges. Some of these costs are payable by Harris and L3 regardless of whether the merger is completed.

The combined company also will incur restructuring and integration costs in connection with the merger. The costs related to restructuring will be expensed as a cost of the ongoing results of operations of either Harris or L3 or the combined company. Although Harris and L3 expect that the elimination of duplicative costs, as well as the realization of other efficiencies related to the integration of the businesses, may offset incremental transaction, merger-related and restructuring costs over time, any net benefit may not be achieved in the near term or at all. Many of these costs will be borne by Harris and/or L3 even if the merger is not completed. While both Harris and L3 have assumed that a certain level of expenses would be incurred in connection with the merger and the other transactions contemplated by the merger agreement, there are many factors beyond their control that could affect the total amount or the timing of the integration and implementation expenses.

Harris stockholders and L3 stockholders will not be entitled to appraisal rights in the merger.

Appraisal rights are statutory rights that, if applicable under law, enable stockholders to dissent from an extraordinary transaction, such as a merger, and to demand that the corporation pay the fair value for their shares as determined by a court in a judicial proceeding instead of receiving the consideration offered to the stockholders in connection with the transaction. Under the DGCL, stockholders do not have appraisal rights if the shares of stock they hold are either listed on a national securities exchange or held of record by more than 2,000 holders. Notwithstanding the foregoing, appraisal rights are available if stockholders are required by the terms of the merger agreement to accept for their shares anything other than (a) shares of stock of the surviving corporation, (b) shares of stock of another corporation that will either be listed on a national securities exchange or held of record by more than 2,000 holders, (c) cash in lieu of fractional shares or (d) any combination of the foregoing.

Because the merger is of Merger Sub with and into L3 and holders of Harris common stock will continue to hold their shares following completion of the merger, holders of Harris common stock are not entitled to appraisal rights.

Because shares of Harris common stock are listed on the NYSE, a national securities exchange, and are expected to continue to be so listed, and because L3 stockholders are not required by the terms of the merger agreement to accept for their shares anything other than shares of Harris common stock and cash in lieu of fractional shares, holders of L3 common stock will not be entitled to appraisal rights in the merger. See the section entitled “No Appraisal Rights” beginning on page 205.

Litigation filed against L3, the L3 board of directors, Harris and Merger Sub could prevent or delay the consummation of the merger or result in the payment of damages following completion of the merger.

In connection with the merger, purported stockholders of L3 have filed three putative class action lawsuits and one individual lawsuit against one or more of L3, the members of L3’s board of directors, Harris and Merger Sub. Among other remedies, the plaintiffs in these lawsuits seek to enjoin the merger. The outcome of any such litigation is uncertain. If a dismissal is not granted or a settlement is not reached, these lawsuits could prevent or delay completion of the merger and result in substantial costs to L3 and Harris, including any costs associated with indemnification. Additional lawsuits in connection with the merger may be filed against L3, Harris, Merger Sub and/or their respective directors and officers, which additional lawsuits could also prevent or delay the consummation of the merger and result in additional costs to L3 and Harris. The ultimate resolution of these lawsuits cannot be predicted with certainty, and an adverse ruling in any such lawsuit may cause the merger to be delayed or not to be completed, which could cause Harris and L3 not to realize some or all of the anticipated benefits of the merger. The defense or settlement of any lawsuit or claim that remains unresolved at the time the merger is consummated may adversely affect the combined company’s business, financial condition, results of operations and cash flows. L3 and Harris cannot currently predict the outcome of or reasonably estimate the possible loss or range of loss from any these lawsuits or claims. See “The Merger—Litigation Related to the Merger” beginning on page 127 for more information about the lawsuits that have been filed related to the merger.

Risks Relating to the Combined Company

The failure to successfully combine the businesses of Harris and L3 may adversely affect the combined company’s future results.

The success of the merger will depend, in part, on the ability of the combined company to realize anticipated benefits from combining the businesses of Harris and L3. To realize these anticipated benefits, the

businesses of Harris and L3 must be successfully combined. If the combined company is not able to achieve these objectives, the anticipated benefits of the merger may not be realized fully or at all or may take longer to realize than expected.

The combined company may not be able to retain customers or suppliers or customers or suppliers may seek to modify contractual obligations with the combined company, which could have an adverse effect on the combined company’s business and operations.

As a result of the merger, the combined company may experience strain in relationships with customers and suppliers that may harm the combined company’s business and results of operations. Certain customers or suppliers may seek to terminate or modify contractual obligations following the merger whether or not contractual rights are triggered as a result of the merger. There can be no guarantee that customers and suppliers will remain with or continue to have a relationship with the combined company or do so on the same or similar contractual terms following the merger. If any of the customers or suppliers seek to terminate or modify contractual obligations or discontinue the relationship with the combined company, then the combined company’s business and results of operations may be harmed. Furthermore, the combined company will not have long-term arrangements with many of its significant suppliers. If the combined company’s suppliers were to seek to terminate or modify an arrangement with the combined company, including as a result of bankruptcy of any such suppliers due to poor economic conditions, then the combined company may be unable to procure necessary supplies from other suppliers in a timely and efficient manner and on acceptable terms, or at all.

The combined company may be exposed to increased litigation, which could have an adverse effect on the combined company’s business and operations.

The combined company may be exposed to increased litigation from stockholders, customers, suppliers, consumers and other third parties due to the combination of Harris’ business and L3’s business following the merger. Such litigation may have an adverse impact on the combined company’s business and results of operations or may cause disruptions to the combined company’s operations.

Combining the businesses of Harris and L3 may be more difficult, costly or time-consuming than expected and the combined company may fail to realize the anticipated benefits of the merger, which may adversely affect the combined company’s business results and negatively affect the value of the common stock of the combined company following the merger.

The success of the merger will depend on, among other things, the ability of Harris and L3 to combine their businesses in a manner that facilitates growth opportunities and realizes cost savings. Harris and L3 have entered into the merger agreement because each believes that the merger and the other transactions contemplated by the merger agreement are fair to and in the best interests of its respective stockholders and that combining the businesses of Harris and L3 will produce benefits and cost savings.

However, Harris and L3 must successfully combine their respective businesses in a manner that permits these benefits to be realized. In addition, the combined company must achieve the anticipated growth and cost savings without adversely affecting current revenues and investments in future growth. If the combined company is not able to successfully achieve these objectives, the anticipated benefits of the merger may not be realized fully, or at all, or may take longer to realize than expected.

An inability to realize the full extent of the anticipated benefits of the merger and the other transactions contemplated by the merger agreement, as well as any delays encountered in the integration process, could have an adverse effect upon the revenues, level of expenses and operating results of the combined company, which may adversely affect the value of the common stock of the combined company after the completion of the merger.

In addition, the actual integration may result in additional and unforeseen expenses, and the anticipated benefits of the integration plan may not be realized. Actual growth and cost savings, if achieved, may be lower than what Harris and L3 expect and may take longer to achieve than anticipated. If Harris and L3 are not able to adequately address integration challenges, they may be unable to successfully integrate their operations or realize the anticipated benefits of the integration of the two companies.

The failure to integrate successfully the businesses and operations of Harris and L3 in the expected time frame may adversely affect the combined company’s future results.

Harris and L3 have operated and, until the completion of the merger, will continue to operate independently. There can be no assurances that their businesses can be integrated successfully. It is possible that the integration process could result in the loss of key Harris employees or key L3 employees, the loss of customers, the disruption of either company’s or both companies’ ongoing businesses, inconsistencies in standards, controls, procedures and policies, unexpected integration issues, higher than expected integration costs and an overall post-completion integration process that takes longer than originally anticipated. Specifically, the following issues, among others, must be addressed in integrating the operations of Harris and L3 in order to realize the anticipated benefits of the merger so the combined company performs as expected:

In addition, at times the attention of certain members of either company’s or both companies’ management and resources may be focused on completion of the merger and the integration of the businesses of the two companies and diverted from day-to-day business operations, which may disrupt each company’s ongoing business and the business of the combined company.

Furthermore, the board of directors and executive leadership of the combined company will consist of former directors and executive officers from each of Harris and L3. Combining the boards of directors and management teams of each company into a single board and a single management team could require the reconciliation of differing priorities and philosophies.

The Harris and L3 unaudited prospective financial information is inherently subject to uncertainties, the unaudited pro forma financial data included in this document is preliminary and the combined company’s actual financial position and results of operations after the merger may differ materially from these estimates and the unaudited pro forma financial data included in this joint proxy statement/prospectus. Specifically, the unaudited pro forma combined financial data does not reflect the effect of any divestitures that may be required in connection with the merger.

The unaudited pro forma combined financial statements and unaudited pro forma per share data included in this joint proxy statement/prospectus are presented for illustrative purposes only, contain a variety of adjustments, assumptions and preliminary estimates and are not necessarily indicative of what the combined company’s actual

financial position or results of operations would have been had the merger been completed on the dates indicated. The combined company’s actual results and financial position after the merger may differ materially and adversely from the unaudited pro forma financial data included in this joint proxy statement/prospectus. Specifically, the unaudited pro forma combined financial information does not reflect the effect of any divestitures that may be required in connection with the merger. For more information, see the sections entitled “Comparative Historical and Unaudited Pro Forma Per Share Data” beginning on page 40 and “Unaudited Pro Forma Condensed Combined Financial Statements” beginning on page 154.

While presented with numeric specificity, the Harris and L3 unaudited prospective financial information provided in this joint proxy statement/prospectus is based on numerous variables and assumptions (including, but not limited to, those related to industry performance and competition and general business, defense industry, economic, market and financial conditions and additional matters specific to Harris’ or L3’s business, as applicable) that are inherently subjective and uncertain and are beyond the control of the respective management teams of Harris and L3. As a result, actual results may differ materially from the unaudited prospective financial information. Important factors that may affect actual results and cause these unaudited projected financial forecasts to not be achieved include, but are not limited to, risks and uncertainties relating to Harris’ or L3’s business, as applicable (including each company’s ability to achieve strategic goals, objectives and targets over applicable periods), defense industry performance, general business and economic conditions. For more information see the sections entitled “The Merger—Harris Unaudited Financial Projections” beginning on page 117, “The Merger—L3 Unaudited Financial Projections” beginning on page 119 and “The Merger—Certain Estimated Synergies” beginning on page 121.

Harris and L3 will incur significant transaction and merger-related costs in connection with the merger.

Harris and L3 have incurred and expect to incur a number of non-recurring costs associated with the merger. These costs and expenses include fees paid to financial, legal and accounting advisors, facilities and systems consolidation costs, severance and other potential employment-related costs, including payments that may be made to certain Harris executives and certain L3 executives, filing fees, printing expenses and other related charges. Some of these costs are payable by Harris and L3 regardless of whether the merger is completed. There are also a large number of processes, policies, procedures, operations, technologies and systems that must be integrated in connection with the merger and the integration of the two companies’ businesses. While both Harris and L3 have assumed that a certain level of expenses would be incurred in connection with the merger and the other transactions contemplated by the merger agreement, there are many factors beyond their control that could affect the total amount or the timing of the integration and implementation expenses.

There may also be additional unanticipated significant costs in connection with the merger that the combined company may not recoup. These costs and expenses could reduce the realization of efficiencies, strategic benefits and additional income Harris and L3 expect to achieve from the merger. Although Harris and L3 expect that these benefits will offset the transaction expenses and implementation costs over time, this net benefit may not be achieved in the near term or at all.

The revenue of the combined company will depend on Harris’ and L3’s ability to maintain certain levels of government business. The loss of contracts with U.S. and non-U.S. government agencies could adversely affect the combined company’s revenue.

Both Harris and L3 derive the substantial majority of their revenues from contracts or subcontracts with various U.S. government agencies, including the U.S. Department of Defense. A significant reduction in the purchase of Harris’ or L3’s products or services by these agencies could have a material adverse effect on the businesses of the combined company following the merger. For the fiscal years ended June 29, 2018, June 30, 2017 and July 1, 2016, approximately 75%, 74% and 77%, respectively, of Harris’ revenues were derived directly or indirectly from contracts with the U.S. government and its agencies. Additionally, for the fiscal years ended December 31, 2017, 2016 and 2015, approximately 70%, 69% and 70%, respectively, of L3’s total sales were derived directly or indirectly from contracts with the U.S. government and its agencies. Therefore, the development of the combined company’s business in the future will depend upon the continued willingness of the U.S. government and its prime contractors to commit substantial resources to government programs and, in particular, upon the continued purchase of the combined company’s products or services and other products or services which incorporate the combined company’s products or services, by the U.S. government. In particular, the current funding demands on the U.S. government may lead to lower levels of government defense spending.

The risk that governmental purchases of the combined company’s products or services may decline stems from the nature of the combined company’s business with the U.S. government, in which the U.S. government may:

In addition, Harris and L3 are subject to the following risks in connection with government contracts: