TERADYNE, INC.

600 Riverpark Drive

North Reading, Massachusetts 01864

NOTICE OF ANNUAL MEETING OF SHAREHOLDERS

TO THE SHAREHOLDERS:

The Annual Meeting of Shareholders of Teradyne, Inc., a Massachusetts corporation, will be held on Tuesday, May 8, 2018 at 10:00 A.M. Eastern Time, at the offices of Teradyne, Inc. at 600 Riverpark Drive, North Reading, Massachusetts 01864, for the following purposes:

1. To elect the eight nominees named in the accompanying proxy statement to the Board of Directors to serve as directors for a one-year term.

2. To approve, in a non-binding, advisory vote, the compensation of the Company’s named executive officers.

3. To ratify the selection of the firm of PricewaterhouseCoopers LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2018.

4. To transact such other business as may properly come before the meeting and any postponements or adjournments thereof.

Shareholders entitled to notice of and to vote at the meeting shall be determined as of the close of business on March 15, 2018, the record date fixed by the Board of Directors for such purpose.

By Order of the Board of Directors,

Charles J. Gray, Secretary

March 29, 2018

Shareholders are requested to vote in one of the following three ways: (1) by completing, signing and dating the proxy card provided by Teradyne and returning it by return mail to Teradyne in the enclosed envelope or at the address indicated on the proxy card, (2) by completing a proxy using the toll-free telephone number listed on the proxy card, or (3) by completing a proxy on the Internet at the address listed on the proxy card.

Table of Contents

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TERADYNE, INC.

600 Riverpark Drive

North Reading, Massachusetts 01864

PROXY STATEMENT

March 29, 2018

Proxies in the form provided by Teradyne, Inc. (“Teradyne” or the “Company”) are solicited by the Board of Directors (“Board”) of Teradyne for use at the Annual Meeting of Shareholders to be held on Tuesday, May 8, 2018, at 10:00 A.M. Eastern Time, at the offices of Teradyne, Inc. at 600 Riverpark Drive, North Reading, Massachusetts 01864.

Only shareholders of record as of the close of business on March 15, 2018 (the “Record Date”) will be entitled to vote at this annual meeting and any adjournments thereof. As of the Record Date, 194,727,132 shares of common stock were issued and outstanding. Each share outstanding as of the Record Date will be entitled to one vote, and shareholders may vote in person or by proxy. Delivery of a proxy will not in any way affect a shareholder’s right to attend the annual meeting and vote in person. Any shareholder delivering a proxy has the right to revoke it only by written notice to the Secretary or Assistant Secretary delivered at any time before it is exercised, including at the annual meeting. All properly completed proxy forms returned in time to be cast at the annual meeting will be voted.

Important Notice Regarding the Availability of Proxy Materials for

the Shareholder Meeting to be Held on May 8, 2018

This Proxy Statement and the Accompanying Annual Report on Form 10-K, Letter to Shareholders, and Notice, are available at www.proxyvote.com

At the meeting, the shareholders will consider and vote upon the following proposals put forth by the Board:

1. To elect the eight nominees named in this proxy statement to the Board of Directors to serve as directors for a one-year term.

2. To approve, in a non-binding, advisory vote, the compensation of the Company’s named executive officers.

3. To ratify the selection of the firm of PricewaterhouseCoopers LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2018.

The Board recommends that you vote FOR the proposals listed above.

On or about March 29, 2018, the Company mailed to its shareholders of record as of March 15, 2018 a notice containing instructions on how to access this proxy statement and the Company’s annual report online and to vote. Also on March 29, 2018, the Company began mailing printed copies of these proxy materials to shareholders that have requested printed copies.

If you received a notice by mail, you will not receive a printed copy of the proxy materials in the mail unless you request a copy. Instead, the notice instructs you on how to access and review all of the important information contained in the proxy statement and annual report. The notice also instructs you on how you may submit your

proxy over the Internet. If you received a notice by mail and would like to receive a printed copy of the proxy materials, you should follow the instructions for requesting such materials included in the notice.

If a shareholder completes and submits a proxy, the shares represented by the proxy will be voted in accordance with the instructions for such proxy. If a shareholder submits a proxy card but does not fill out the voting instructions, shares represented by such proxy will be voted FOR the proposals listed above.

Shareholders may vote in one of the following three ways:

1. by completing a proxy on the Internet at the address listed on the proxy card or notice,

2. by completing a proxy using the toll-free telephone number listed on the proxy card or notice, or

3. by completing, signing and dating the proxy card provided by Teradyne and returning it in the enclosed envelope or by return mail to Teradyne at the address indicated on the proxy card.

A majority of the outstanding shares represented at the meeting in person or by proxy shall constitute a quorum for the transaction of business. Abstentions and broker “non-votes” are counted as present or represented for purposes of determining the presence or absence of a quorum for the meeting. A “non-vote” occurs when a nominee holding shares for a beneficial owner votes on one proposal, but does not vote on another proposal because the nominee does not have discretionary voting power and has not received instructions from the beneficial owner. For this annual meeting, on all matters being submitted to shareholders, an affirmative vote of at least a majority of the shares voting on the matter at the meeting is required for approval. The vote on each matter submitted to shareholders is tabulated separately. Abstentions are not included in the number of shares present, or represented, and voting on each separate matter. Broker “non-votes” are also not included. An automated system administered by Teradyne’s transfer agent tabulates the votes.

The Board knows of no other matter to be presented at the annual meeting. If any other matter should be presented at the annual meeting upon which a vote properly may be taken, shares represented by all proxies received by the Board will be voted in accordance with the judgment of those officers named as proxies and in accordance with the Securities and Exchange Commission’s (“SEC’s”) proxy rules. See the section entitled “Shareholder Proposals for 2019 Annual Meeting of Shareholders” for additional information.

PROPOSAL NO. 1 ELECTION OF DIRECTORS

The Board presently consists of nine members, eight of whom are independent directors. Each director is elected annually for a one-year term. Ms. Matz joined the Board effective July 3, 2017. The terms of the directors expire at the 2018 Annual Meeting of Shareholders. The Board, based on the recommendation of the Nominating and Corporate Governance Committee, has nominated all current directors for re-election other than Mr. Christman who is retiring from the Board, effective upon the conclusion of the 2018 Annual Meeting of Shareholders. Teradyne has no reason to believe that any of the nominees will be unable to serve; however, if that should be the case, proxies will be voted for the election of some other person (nominated in accordance with Teradyne’s bylaws) or the Board will decrease the number of directors that currently serve on the Board. If elected, each director will hold office until the 2019 Annual Meeting of Shareholders.

The Board recommends a vote FOR the election to the Board each of Mses. Johnson and Matz and each of Messrs. Bradley, Gillis, Guertin, Jagiela, Tufano and Vallee.

The following table sets forth the nominees to be elected at this annual meeting, the year each person was first appointed or elected, the principal occupation of that person during at least the past five years, that person’s age, any other public company boards on which the nominee serves or has served in the past five years, and the nominee’s qualifications to serve on the Board. In addition to the information presented below regarding each

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nominee’s specific experience, qualifications, attributes and skills that led the Board to the conclusion that he or she should serve as a director, Teradyne also believes that all of its director nominees have a reputation for integrity, honesty and adherence to high ethical standards. They each have demonstrated business acumen and an ability to exercise sound judgment, as well as a commitment of service to Teradyne and the Board. Additionally, Teradyne values the directors’ significant experience on other public company boards of directors and board committees.

Nominees for Directors

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PROPOSAL NO. 2

ADVISORY VOTE ON COMPENSATION OF NAMED EXECUTIVE OFFICERS

The Company is providing shareholders with the opportunity at the 2018 Annual Meeting to vote on the following advisory resolution, commonly known as “Say-on-Pay”:

RESOLVED, that the shareholders of the Company approve, in a non-binding, advisory vote, the compensation of the Company’s named executive officers as disclosed in the Company’s proxy statement under the headings “Compensation Discussion and Analysis” and “Executive Compensation Tables” pursuant to Item 402 of Regulation S-K.

The Company’s Board of Directors has implemented an executive compensation program that rewards performance. The Board of Directors fosters a performance-oriented environment by tying a significant portion of each executive officer’s cash and equity compensation to the achievement of short-term and long-term performance objectives that are important to the Company and its shareholders. The Board of Directors has designed the Company’s executive compensation program to attract, motivate, reward and retain the senior management talent required to achieve the Company’s corporate objectives and increase shareholder value. The Company believes that its compensation policies and practices reflect a pay-for-performance philosophy and are strongly aligned with the long-term interests of shareholders. The Company recommends shareholders read the sections of this proxy statement entitled “Compensation Discussion and Analysis” and “Executive Compensation Tables” before voting on this “Say-on-Pay” advisory proposal.

The performance-based executive compensation program resulted in compensation for the Company’s named executive officers that reflects the Company’s challenging performance goals for 2017 and performance in achieving those goals. The Company increased revenues by 22% to $2.14 billion, generated significant free cash flow and increased its profit rate before interest and taxes, or PBIT, as described in the section of this proxy statement entitled “Compensation Discussion and Analysis”. The Company achieved market share gains in its semiconductor test business, achieved model profitability in its wireless test business and grew its industrial automation business by over 70% year over year. Additionally, in 2017, the Company exceeded its 2020 earnings per share target three years ahead of plan.

The Company’s sustained profitability and free cash flow allowed the Company in 2017 to return $256 million to shareholders through payment of quarterly dividends and share repurchases. The Company has announced a new $1.5 billion share repurchase authorization and plans to repurchase $750 million of shares in 2018 and has announced a 29% increase to its quarterly dividend to $0.09 per share.

The Company’s performance-based variable compensation for 2017 was tied to the Company’s rate of profitability, revenue growth and the achievement of strategic business objectives, including market share gains, revenue and bookings goals, profit and gross margin targets, strategic customer wins and new product launches – the achievement of which positively impact the Company’s long-term performance. In 2016, after multiple years of achieving profitability goals at sustained revenue levels, the Company added a two-year rolling revenue growth rate metric as an element of the variable cash compensation plan to reinforce the importance of achieving short- and long-term revenue growth as well as achieving its profitability goals. Due to the Company’s rate of profitability, revenue growth and achievement of market share and other strategic goals in 2017, executive officers received variable cash compensation payouts ranging from 158% to 181% of target.

In 2017, the Company’s long-term performance criteria for performance-based stock awards included both the prior relative total shareholder return component and a new cumulative PBIT component, each measured at the end of a three-year performance period, consistent with the Company’s long-term goal to deliver profitability and superior return to shareholders. The determination of the final number of shares to be received for these performance-based stock awards will not be determined until January 2020.

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In January 2018, the executive officers achieved 154.5% of their target performance-based stock awards granted in 2015 based on Teradyne’s relative total shareholder return performance measured against the Philadelphia Semiconductor Index during the three-year performance period from January 2015 to January 2018.

The Company’s shareholders voted to approve the Say-on-Pay advisory proposal at the 2017 Annual Meeting of Shareholders with 93% of the votes cast approving the proposal. Notwithstanding this result, the Board of Directors continues to assess the Company’s executive compensation program to ensure it remains aligned with both short-term and long-term performance. For example, in 2018, the Company increased the PBIT rate target for variable cash compensation from 15% to 17% and increased the percentage PBIT required for maximum variable cash compensation payout from 25% to 30% and similarly increased the three-year cumulative PBIT rate component of the long term performance criteria for performance-based stock awards from 15% to 17% and increased the percentage PBIT required for maximum vesting of PBIT determined performance-based stock awards from 25% to 30%.

The performance-based variable cash compensation and equity awards are described in detail in the “Compensation Discussion and Analysis” section of this proxy statement.

The Company will report the results of the “Say-on-Pay” vote in a Form 8-K following the 2018 Annual Meeting of Shareholders. The Company also will disclose in subsequent proxy statements how the Company’s compensation policies and decisions take into account the results of the shareholder advisory vote on executive compensation.

The Board recommends a vote FOR the advisory resolution approving the compensation of the Company’s named executive officers as described in this proxy statement.

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PROPOSAL NO. 3

RATIFICATION OF SELECTION OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The Audit Committee has selected (and the Board of Directors has approved) PricewaterhouseCoopers LLP to serve as Teradyne’s independent registered public accounting firm for the fiscal year ending December 31, 2018. PricewaterhouseCoopers LLP, or its predecessor Coopers & Lybrand L.L.P., has served as Teradyne’s independent registered public accounting firm since 1968. The appointment of PricewaterhouseCoopers LLP is in the best interest of Teradyne’s shareholders. Teradyne expects that a representative from PricewaterhouseCoopers LLP will be at the annual meeting, will have the opportunity to make a statement if so desired and will be available to respond to appropriate questions. The ratification of this selection is not required by the laws of The Commonwealth of Massachusetts, where Teradyne is incorporated, but the results of this vote will be considered by the Audit Committee in selecting an independent registered public accounting firm for future fiscal years.

The Board recommends a vote FOR ratification of the selection of PricewaterhouseCoopers LLP.

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CORPORATE GOVERNANCE AND BOARD OF DIRECTORS

Corporate Governance and Board Policies

Teradyne is committed to good, transparent corporate governance to ensure that the Company is managed for the long-term benefit of its shareholders. The Board of Directors has adopted Corporate Governance Guidelines (“Guidelines”) to provide a framework for the effective governance of Teradyne. The Nominating and Corporate Governance Committee periodically reviews the Guidelines and recommends changes, as appropriate, to the Board of Directors for approval. The Board of Directors has also adopted written charters for its standing committees (Audit, Compensation, and Nominating and Corporate Governance), and the Company has a Code of Conduct applicable to all directors, officers and employees. Copies of the Guidelines, committee charters, and Code of Conduct are available on the Company’s web site at www.teradyne.com under the “Corporate Governance” section of the “Investors” link. Teradyne posts additional information on its web site from time to time as the Board makes changes to Teradyne’s corporate governance policies.

Teradyne has instituted a variety of policies and practices to foster and maintain good corporate governance. The Board reviews these practices on a regular basis. Teradyne’s current policies and practices include the following:

Board Nomination Policies and Procedures

The Nominating and Corporate Governance Committee is responsible for identifying, evaluating and recommending candidates for election to the Board and does not distinguish between nominees recommended by shareholders and other nominees. All nominees must meet, at a minimum, the Board membership criteria described below.

Director nominees are evaluated on the basis of a range of criteria, including (but not limited to): integrity, honesty and adherence to high ethical standards; business acumen, experience and ability to exercise sound judgments and contribute positively to a decision-making process; commitment to understanding Teradyne and its industry, and to regularly attend and participate in Board and Committee meetings; ability to ensure that outside commitments do not materially interfere with duties as a Board member; absence of a conflict of interest or

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appearance of a conflict of interest; and other appropriate considerations. Nominees shall be 74 years or younger as of the date of election or appointment. No director may serve on more than four other public company boards.

The Board seeks nominees with a broad diversity of viewpoints, professional experience, education, geographic representation, backgrounds and skills. The backgrounds and qualifications of directors, considered as a group, should provide a significant composite mix of backgrounds, expertise and experience that will allow the Board to fulfill its responsibilities. The Board values ethnic, cultural, gender, economic, professional and educational diversity in evaluating new candidates and seeks to incorporate a wide range of those attributes in Teradyne’s Board of Directors. Board composition is reviewed regularly to ensure that Teradyne’s directors reflect the knowledge, experience, skills and diversity required for the needs of the Board.

At the 2018 Annual Meeting, shareholders will be asked to consider the election of Marilyn Matz, who has been nominated for election as director for the first time. In July 2017, Ms. Matz was appointed by our Board as a new director. Ms. Matz was originally proposed to the Nominating and Corporate Governance Committee as a potential candidate for the Board by current Board member Edwin J. Gillis.

Shareholders wishing to suggest candidates to the Nominating and Corporate Governance Committee for consideration as potential director nominees may do so by submitting the candidate’s name, experience, and other relevant information to the Nominating and Corporate Governance Committee, 600 Riverpark Drive, North Reading, MA 01864. Shareholders wishing to nominate directors may do so by submitting a written notice to the Secretary at the same address in accordance with the nomination procedures set forth in Teradyne’s bylaws. Additional information regarding the nomination procedure is provided in the section below captioned “Shareholder Proposals for 2019 Annual Meeting of Shareholders”.

Director Independence

Teradyne’s Corporate Governance Guidelines require that at least a majority of the Board shall be independent. To be considered independent, a director must satisfy the definitions pursuant to the SEC rules and the listing standards of the New York Stock Exchange (“NYSE”), meet the standards regarding director independence adopted by Teradyne, and, in the Board’s judgment, not have a material relationship with Teradyne. The standards for determining independence are available on Teradyne’s web site at www.teradyne.com under the “Corporate Governance” section of the “Investors” link.

The Board has determined that the following directors are independent using the criteria identified above: Michael A. Bradley, Daniel W. Christman, Edwin J. Gillis, Timothy E. Guertin, Mercedes Johnson, Marilyn Matz, Paul J. Tufano and Roy A. Vallee. In determining the independence of Teradyne’s directors, the Board reviewed and determined that the following did not preclude a determination of independence under Teradyne’s standards: Ms. Johnson’s position as a director of Micron Technology, Inc., Juniper Networks, Inc., and, until its acquisition by Renesas Electronics Corporation in February 2017, Intersil Corporation, each a Teradyne customer; Mr. Tufano’s position as President, Chief Executive Officer and director of Benchmark Electronics, Inc., one of Teradyne’s customers; and each of Ms. Johnson’s and Mr. Vallee’s position as a director of Synopsys, Inc., one of Teradyne’s suppliers. Teradyne’s business with Micron Technology, Intersil, Juniper Networks, Benchmark Electronics and Synopsys during 2017 was immaterial to Teradyne and to the other companies. Teradyne will continue to monitor its business relationships to ensure they have no impact on the independence of its directors. The Board has determined that Michael A. Bradley met the standards for independence on February 1, 2018 because, as of that date, he had not received compensation from Teradyne related to his employment as the Company’s Chief Executive Officer during a twelve-month period within the last three years. The Board has determined that Mark E. Jagiela is not independent because he is Teradyne’s Chief Executive Officer.

All members of the Company’s three standing committees – the Audit, Compensation and Nominating and Corporate Governance Committee – are required to be independent and have been determined by the Board to be independent pursuant to the SEC rules and the listing standards of the NYSE, as well as Teradyne’s standards.

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The independent directors of the Board and its standing committees periodically meet without management present.

Board Leadership Structure and Self-Assessment

Since May 2014, Mr. Vallee has served as an independent Chair of the Board. The Board believes that having an independent Chair is the preferred corporate governance structure for the Company because it strikes an effective balance between management and independent leadership participation in the Board process.

The Board and each of its committees annually undertake a self-assessment, including an evaluation of its composition, mandate and function.

Code of Ethics

The Code of Conduct is Teradyne’s ethics policy. The Board has established a means for anyone to report violations of the ethics policy on a confidential or anonymous basis. Teradyne’s Code of Conduct is available on Teradyne’s web site at www.teradyne.com under the “Corporate Governance” section of the “Investors” link.

Teradyne maintains an insider trading policy as part of its Code of Conduct. Among other things, the insider trading policy prohibits trading on material non-public information and provides that directors, executive officers and certain other employees are prohibited from buying or selling Teradyne securities during the Company’s non-trading periods, also called “blackout periods”, except pursuant to an approved trading plan.

Teradyne shall disclose any change to or waiver from the Code of Conduct granted to an executive officer or director within four business days of such determination by disclosing the required information on its web site at www.teradyne.com under the “Corporate Governance” section of the “Investors” link.

Board Oversight of Risk

Management is responsible for the day-to-day management of risks to the Company, while the Board of Directors, as a whole and through its committees, has responsibility for the oversight of risk management. Management attends regular Board and committee meetings and discusses with the Board and committees various risks confronting the Company, including operational, legal, market and competitive risks. Management and the Board have not identified any risks arising from Teradyne’s compensation plans, policies and practices for the executives or employees that are reasonably likely to have a material adverse effect on the Company.

Related Party Transactions

Under Teradyne’s written “Conflict of Interest Policy,” which is part of Teradyne’s Code of Conduct, the General Counsel notifies the Audit Committee of any investment or other arrangement to be entered into by Teradyne that could or would be perceived to represent a conflict of interest with any of the executive officers or directors. Every year Teradyne makes an affirmative inquiry of each of the executive officers and directors as to their existing relationships. Teradyne reports any potential conflicts identified through these inquiries to the Audit Committee.

Shareholder Communications with Board of Directors

Shareholders and other interested parties may communicate with one or more members of the Board, including the Chair, or the non-management directors as a group by writing to the Non-Management Directors, Board of Directors, 600 Riverpark Drive, North Reading, MA 01864 or by electronic mail at nonmanagementdirectors@teradyne.com. Any communications that relate to ordinary business matters that are not within the scope of the Board’s responsibilities, such as customer complaints, will be sent to the appropriate executive. Solicitations, junk mail, computer viruses, and obviously frivolous or inappropriate communications will not be forwarded, but will be made available to any director who wishes to review them.

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Under Teradyne’s Corporate Governance Guidelines, each director is expected to attend each annual meeting of shareholders. All directors attended the 2017 Annual Meeting of Shareholders held on May  9, 2017.

Board Meetings

The Board met four times during the year ended December 31, 2017. The non-employee directors, all of whom are independent, held executive sessions in which they met without management after its regularly scheduled meetings during 2017. The Chair of the Board presides over all Board meetings and each executive session. During 2017, each director attended at least 75% of the total number of meetings of the Board and committee meetings held while such person served as a director. Teradyne’s Corporate Governance Guidelines, which are available at www.teradyne.com under the “Corporate Governance” section of the “Investors” link, provide a framework for the conduct of the Board’s business.

Board Committees

The Board has three standing committees: an Audit Committee, a Compensation Committee and a Nominating and Corporate Governance Committee. In accordance with the listing standards of the NYSE, all of the committees are comprised of independent directors. The members of each committee are appointed by the Board based on the recommendation of the Nominating and Corporate Governance Committee. Each committee performs a self-evaluation and reviews its charter annually. Actions taken by any committee are reported to the Board, usually at the next Board meeting following the action. The table below shows the current membership of each of the standing committees:

The Board will appoint committee members for the 2018-2019 term following the election of directors at the 2018 Annual Meeting of Shareholders.

Audit Committee

The Audit Committee has three members, all of whom have been determined by the Board to be independent pursuant to SEC rules and the listing standards of the NYSE, as well as Teradyne’s independence standards. In addition, the Board determined that each member of the Audit Committee is financially literate and an “audit committee financial expert” as defined in the rules and regulations promulgated by the SEC. Mercedes Johnson serves on three public company audit committees in addition to Teradyne’s Audit Committee. The Board has determined that Ms. Johnson’s simultaneous service on three additional audit committees does not impair her ability to effectively serve on Teradyne’s Audit Committee. The Audit Committee’s oversight responsibilities, described in greater detail in its charter, include, among other things:

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The Audit Committee met eleven times during 2017. The responsibilities of the Audit Committee and its activities during 2017 are more fully described in the Audit Committee Report contained in this proxy statement.

Compensation Committee

The Compensation Committee has four members, all of whom have been determined by the Board to be independent pursuant to SEC rules and the listing standards of the NYSE, as well as Teradyne’s independence standards. The Compensation Committee’s primary responsibilities, discussed in greater detail in its charter, include, among other things:

The Compensation Committee has the authority to and does engage the services of independent advisors, experts and others to assist it from time to time. Teradyne’s compensation and benefits group in the Human Resources Department supports the Compensation Committee in its work and assists in administering the compensation plans and programs.

The Compensation Committee met six times during 2017.

The Compensation Committee has retained Compensia, Inc. (“Compensia”), an executive compensation consulting firm, to assist it in carrying out its duties and responsibilities regarding executive and non-employee director compensation. In 2017, this engagement involved preparing (1) an executive officer compensation competitive analysis; (2) a director compensation competitive analysis; (3) a peer group analysis; and (4) a tally sheet analysis for executive officers. To maintain the independence of its advice, Compensia has provided no services to Teradyne other than the services provided to the Compensation Committee. In addition, the Compensation Committee conducts annually a conflict of interest assessment for Compensia and any other independent advisors engaged during the year using the factors applicable to compensation consultations under SEC rules and the listing standards of the NYSE, and, for 2017, no conflict of interest was identified.

The Compensation Committee also uses proprietary compensation surveys prepared by Radford, a global compensation consultant focused on technology companies.

Compensation Committee Interlocks and Insider Participation

The Compensation Committee is comprised entirely of independent directors in accordance with SEC rules and the listing standards of the NYSE, as well as Teradyne’s independence standards. None of Teradyne’s executive officers serves on the Compensation Committee of any of the companies in which the directors are officers.

Nominating and Corporate Governance Committee

The Nominating and Corporate Governance Committee has four members, all of whom have been determined by the Board to be independent pursuant to SEC rules and the listing standards of the NYSE, as well

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as Teradyne’s independence standards. The Nominating and Corporate Governance Committee’s primary responsibilities, discussed in greater detail in its charter, include, among other things:

The Nominating and Corporate Governance Committee identifies director candidates through numerous sources, including recommendations from existing Board members, executive officers, and shareholders and through engagements with executive search firms.

Non-employee directors must notify the Nominating and Corporate Governance Committee if the director experiences a change of position from that held upon first becoming a member of the Board. Upon any such notification, the Nominating and Corporate Governance Committee will review the appropriateness of the director’s continued membership under the circumstances. Teradyne’s Corporate Governance Guidelines also provide that the continuation of a former Chief Executive Officer of the Company on the Board is a matter to be decided by the Board, upon recommendation of the Nominating and Corporate Governance Committee.

The Nominating and Corporate Governance Committee met four times during 2017.

Director Compensation

Teradyne uses a combination of cash and stock-based incentive compensation to attract and retain qualified candidates to serve on the Board. Non-employee directors’ compensation is determined by the Board at the recommendation of the Compensation Committee. Directors who are employees of Teradyne receive no compensation for their service as a director.

Cash Compensation

In 2017, the non-employee directors were compensated at the rate of $70,000 per year. Additional fees paid to certain non-employee directors in 2017 were as follows:

Stock-Based Compensation

Each non-employee director receives an annual equity award having a fair market value equal to $175,000 on the earlier of (i) the date of the Annual Meeting of Shareholders or (ii) the last Thursday in May. This annual equity award, which is delivered in the form of restricted stock units, vests in full on the earlier of (i) the first anniversary of the date of grant or (ii) the date of the following year’s Annual Meeting of Shareholders.

Each new non-employee director is granted an equity award on the date first elected or appointed to the Board having a fair market value equal to $175,000 pro-rated daily to reflect the period between the director’s

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date of election or appointment and the date of the next annual board grant. This equity award, which is also delivered in the form of restricted stock units, vests in full on the date of the next annual equity award grant. The equity award is granted under the shareholder-approved 2006 Equity and Cash Compensation Incentive Plan which limits annual equity awards for non-employee directors to an amount not to exceed $200,000.

Director Deferral Program

The non-employee directors may elect to defer receipt of their cash and/or equity awards and have the compensation invested into (1) an interest bearing account (based on ten-year Treasury note interest rates) or (2) a deferred stock unit (“DSU”) account. If a non-employee director elects to participate in this deferral program, he or she will receive either the cash value of the interest bearing account or the shares of the Company’s common stock underlying the DSU’s within 90 days following the end of his or her board service.

Director Stock Ownership Guidelines

The Company maintains stock retention and stock ownership guidelines to align the interests of the non-employee directors with those of the Company’s shareholders and ensure that the directors have an ongoing financial stake in the Company’s success. Pursuant to the guidelines, the non-employee directors are expected to attain (within five years from the date of initial election to the Board) and maintain an investment level in shares of the Company’s common stock equal to four times their annual cash retainer. All of the non-employee directors other than Ms. Matz, who joined the Board in 2017, met the ownership guidelines as of year-end.

Director Compensation Table for 2017

The table below summarizes the compensation Teradyne paid to the non-employee directors for the fiscal year ended December 31, 2017.

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Section 16(a) Beneficial Ownership Reporting Compliance

Section 16(a) of the Exchange Act requires Teradyne’s directors, executive officers and any person who owns more than 10% of Teradyne’s common stock to file reports of initial common stock ownership and changes in common stock ownership with the SEC and the NYSE. Based solely on a review of these forms and written representations received from the directors and executive officers, Teradyne believes that all Section 16 filing requirements were met during the year January 1, 2017 through December 31, 2017.

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AUDIT AND FINANCIAL ACCOUNTING OVERSIGHT

Audit Committee Report

In 2018, the Audit Committee reviewed Teradyne’s audited financial statements for the fiscal year ended December 31, 2017 and met with both management and PricewaterhouseCoopers LLP (“PwC”), Teradyne’s independent registered public accounting firm, to discuss those financial statements.

The Audit Committee also reviewed the report of management contained in Teradyne’s Annual Report on Form 10-K for the fiscal year ended December 31, 2017 filed with the SEC, as well as PwC’s report included in Teradyne’s Annual Report on Form 10-K related to its audit of (i) the consolidated financial statements and financial statement schedule and (ii) the effectiveness of internal control over financial reporting.

The Audit Committee has discussed with PwC the matters required to be discussed under the rules adopted by the Public Company Accounting Oversight Board (“PCAOB”). The Audit Committee has received the written disclosures and the letter from PwC required by the PCAOB regarding PwC’s communications with the Audit Committee concerning independence, and has discussed with PwC their independence.

Based on these reviews and discussions with management and PwC, the Audit Committee recommended to the Board (and the Board has approved) that Teradyne’s audited financial statements be included in its Annual Report on Form 10-K for the fiscal year ended December 31, 2017.

AUDIT COMMITTEE

Edwin J. Gillis (Chair)

Mercedes Johnson

Paul J. Tufano

The information contained in the report above shall not be deemed to be “soliciting material” or to be “filed” with the SEC, nor shall such information be incorporated by reference into any future filing under the Securities Act of 1933, as amended (the “Securities Act”) or the Exchange Act, except to the extent that Teradyne specifically incorporates it by reference in any such filing.

Principal Accountant Fees and Services

Fees for Services Provided by PricewaterhouseCoopers LLP

The following table sets forth the aggregate fees for services provided by PricewaterhouseCoopers LLP, Teradyne’s independent registered public accounting firm, for the fiscal years ended December 31, 2017 and December 31, 2016.

Audit Fees

Audit Fees are fees related to professional services rendered for the audit of Teradyne’s annual financial statements and internal control over financial reporting for fiscal years 2017 and 2016. These fees include the

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review of Teradyne’s interim financial statements included in its quarterly reports on Form 10-Q and services that are normally provided by PricewaterhouseCoopers LLP in connection with other statutory and regulatory filings or engagements.

Audit-Related Fees

Audit-Related Fees in 2017 were for professional services associated with the new revenue recognition accounting standard. In 2016, fees were for professional services associated with Teradyne’s convertible debt issuance.

Tax Fees

Tax Fees in 2017 and 2016 were for professional services related to global tax planning and compliance matters.

All Other Fees

All Other Fees are fees for services other than audit fees, audit-related fees and tax fees. In 2017, the fees were related to financial statement disclosure and technical accounting software licenses. In 2016, the fees were related to a technical accounting software license.

Audit Committee Pre-Approval of Audit and Permissible Non-Audit Services of Independent Registered Public Accounting Firm

During 2017 and 2016, the Audit Committee pre-approved all audit and other services performed by PricewaterhouseCoopers LLP.

The Audit Committee’s policy is to pre-approve all audit and permissible non-audit services provided by the independent registered public accounting firm in order to ensure that the provision of such services does not impair the independent registered public accounting firm’s independence. These services may include audit services, audit-related services, tax services and other services. In addition to generally pre-approving, on a case-by-case basis, services provided by the independent registered public accounting firm, the Audit Committee adopted a policy for the pre-approval of certain specified services that may be provided by the independent registered public accounting firm. Under this policy, the Audit Committee has pre-approved the independent registered public accounting firm’s engagement for the provision of certain services set forth in a detailed list subject to a dollar limit of either $50,000 or $100,000, depending on the service. The services set forth on the list have been identified in a sufficient level of detail so that management will not be called upon to make a judgment as to whether a proposed service fits within the pre-approved service list. Pursuant to the policy, management informs the Audit Committee, at least annually or more frequently upon its request, if the Company uses any pre-approved service and the fees incurred in connection with that service.

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OWNERSHIP OF SECURITIES

The following table sets forth as of March 15, 2018 information relating to the beneficial ownership of Teradyne’s common stock by each director and executive officer, individually and as a group.

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The following table sets forth certain persons who, based upon Schedule 13G filings made since December 31, 2017, own beneficially more than five percent of Teradyne’s common stock.

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EXECUTIVE COMPENSATION

Compensation Discussion and Analysis

This Compensation Discussion and Analysis provides information regarding the 2017 compensation of Teradyne’s principal executive officer, our principal financial officer, and the three executive officers (other than Teradyne’s principal executive officer and principal financial officer) who were the Company’s most highly-compensated executive officers as of the end of 2017. These individuals were:

These executive officers were our named executive officers for 2017.

This Compensation Discussion and Analysis describes the material elements of Teradyne’s executive compensation program during the fiscal year ended December 31, 2017. It also provides an overview of the Company’s executive compensation philosophy, as well as the Company’s principal compensation policies and practices. Finally, it analyzes how and why the Compensation Committee of the Board of Directors (the “Compensation Committee”) arrived at the specific compensation decisions for the Company’s executive officers, including the named executive officers, in 2017, and discusses the key factors that the Compensation Committee considered in determining the compensation of these executive officers.

2017 Executive Compensation Summary

Teradyne is a leading global supplier of automation equipment for test and industrial applications. The Company designs, develops, manufactures and sells automatic test systems used to test semiconductors, wireless products, data storage and complex electronics systems in the consumer electronics, wireless, automotive, industrial, computing, communications and aerospace and defense industries. Teradyne’s industrial automation products include collaborative robots used by global manufacturing and light industrial customers to improve quality, increase manufacturing efficiency and decrease manufacturing costs. The automatic test equipment and industrial automation markets are highly competitive and are characterized by rapid changes in demand that necessitate adjusting operations and managing spending prudently across business cycles.

In 2017, the Company increased its revenue by 22% from 2016 to $2.14 billion while generating significant free cash flow and increasing its profit rate before interest and taxes (PBIT¹). The Company achieved market share gains in its semiconductor test business, achieved model profitability in its wireless test business, and grew its industrial automation business by over 70% year over year, positioning the Company for sustained profitability and growth. Additionally, in 2017, the Company exceeded its 2020 earnings per share target three years ahead of plan. During 2017, the Company continued to invest for long-term, future growth while maintaining financial discipline.

In 2017, the Company returned $256 million to shareholders through its dividend and share repurchase programs. In January 2018, the Company announced it planned to repurchase $750 million in shares in 2018 pursuant to a $1.5 billion new repurchase program authorized by the Board. Additionally, the Company

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announced a 29% increase to its quarterly dividend to $0.09 per share. The dividend and repurchase programs reflect the Company’s confidence in the business and ability to return capital to its shareholders while retaining sufficient financial flexibility to pursue growth opportunities through internal investments and acquisitions such as Universal Robots.

The Company’s 2017 performance-based variable cash compensation was tied to its rate of profitability, a two-year rolling revenue growth rate metric, and the achievement of strategic business objectives, including market share gains, revenue and bookings goals, profit margin targets, strategic customer wins and new product launches. Teradyne’s performance-based executive compensation program resulted in compensation for the Company’s named executive officers that reflects the Company’s challenging performance goals for 2017 and performance in achieving those goals. Due to the Company’s rate of profitability, revenue growth and achievement of market share and other strategic goals in 2017, executive officers received variable cash compensation payouts ranging from 158% to 181% of target.

The Board of Directors believes that the executive compensation for 2017 is reasonable and appropriate and is justified by the performance of the Company and its achievement of its financial and strategic goals.

The variance in compensation of the named executive officers year over year demonstrates the alignment between pay and performance. For example, the variable cash compensation for the named executive officers from 2010 to 2017 has varied from 79% to 200% of target based on the strength of Company performance and contrasts to compensation received from 2007 to 2009 where executive officers received variable cash compensation well below target in a range from 39% to 74% based on Company performance as compared to target objectives.

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While this variance in compensation indicates that the program effectively rewards the executive officers when there is superior performance by the Company and appropriately adjusts compensation downward in the case of less-than-superior performance, the Board continues to review the executive compensation program and its mix of short- and long-term incentives to ensure it reflects the correct balance between short-term financial performance and long-term shareholder return. The Board also continues to establish challenging performance metrics reflecting the Company’s business objectives and strategy.

In January 2018, the Board increased the PBIT target from 15% to 17% for the performance-based variable cash compensation program and increased the percentage PBIT required for maximum variable cash compensation payout from 25% to 30%. Similarly, the Board increased the three-year cumulative PBIT component of the long-term performance criteria for the performance-based restricted stock units from 15% to 17% and increased the percentage PBIT required for maximum vesting of PBIT determined performance-based stock awards from 25% to 30%.

Teradyne has instituted a variety of compensation policies and practices to foster and maintain best practices for executive compensation. The Compensation Committee reviews these practices on a regular basis. Teradyne’s current policies and practices include the following:

Executive Compensation Objectives

The objective of the executive compensation program is to provide a competitive level of compensation that:

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In setting compensation levels for the executive officers (or in the case of the Chief Executive Officer, in making recommendations to the independent members of the Board), the Compensation Committee takes into account such factors as internal equity, competitive market data (drawn from peer company and survey information), benefits, individual and corporate performance and the general and industry-specific business environment, as well as the roles and responsibilities of each executive officer.

Role of the Compensation Committee

The Compensation Committee’s role is to fulfill certain responsibilities of the Board relating to compensation for the executive officers, and to review and oversee the administration of equity-based incentives, profit sharing, deferred compensation, retirement and pension plans, and other compensatory plans. The Compensation Committee recommends to the independent members of the Board all aspects of the Chief Executive Officer’s compensation and is also responsible for approving all aspects of the other executive officers’ compensation. The Compensation Committee has the authority to select, retain and terminate compensation consultants, independent counsel and such other advisors as it determines necessary to carry out its responsibilities and approve the fees and other terms of retention of any such advisors.

Role of Executive Officers in Determining Executive Pay

The Chief Executive Officer makes individual compensation recommendations for the other executive officers to the Compensation Committee for its review, consideration and determination. The Compensation Committee’s compensation consultant and members of the human resources department provide competitive market information for comparative purposes. The executive officers do not determine any element of their own compensation or their total compensation amount.

Competitive Positioning

To assure its compensation is competitive, Teradyne makes extensive use of comparative data for its worldwide employee programs and its executive officer compensation. This includes data gathered from surveys, compensation consultants and public filings.

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For 2018, the Compensation Committee engaged the independent compensation consulting firm, Compensia, to develop a competitive analysis of Teradyne’s peer companies as well as analyze executive pay packages and advise on the relationship of the Company’s short-term and long-term performance on the pay packages. Compensia recommended to the Compensation Committee a peer group that reflects organizations of comparable size (revenue and market capitalization) and operations (product type and geographic scope) to Teradyne and that provides an appropriate sample size for comparisons. Compensia proposed, and the Compensation Committee reviewed and approved, a peer group that included the 17 companies listed below:

For 2018, Compensia recommended that the Compensation Committee (1) remove from the peer group Fairchild, FEI, and Polycom due to acquisitions, and Lam Research, whose revenue and market capitalization rose above the scoping requirements, and (2) add to the peer group Coherent, Marvell, Maxim Integrated, Microsemi, and MKS Instruments. At the time the peer group was approved, Teradyne remained close to the median of the peer group in terms of both revenue and market capitalization (48^th and 67^th percentiles, respectively).

The Company augmented the peer group with data from the Radford Global Survey. From this survey, the Company used reported data for all semiconductor/semiconductor equipment companies as well as all technology companies between $900 million and $4 billion in annual revenue and between $2 billion and $20 billion in market capitalization.

CEO Pay Ratio

As required by Section 953(b) of the Dodd-Frank Wall Street Reform and Consumer Protection Act, and Item 402(u) of Regulation S-K, Teradyne is providing the following information about the relationship of the annual total compensation of its employees to the annual total compensation of Mr. Jagiela, the Company’s Chief Executive Officer (the “CEO”). The pay ratio information included below is a reasonable estimate calculated in a manner consistent with Item 402(u) of Regulation S-K.

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For 2017, Teradyne’s last completed fiscal year:

To identify the median of the annual total compensation of all its employees (the “median employee”), Teradyne examined the 2017 model cash compensation for all employees, excluding our CEO, who were employed by the Company on Teradyne’s determination date, October 9, 2017. The Company included all employees in all countries, whether employed on a full-time, part-time, temporary or seasonal basis. “Model cash compensation” is the target cash compensation of a Company employee consisting of base salary, target sales commissions, target variable cash compensation, and/or target cash bonuses and benefits. Teradyne used model cash compensation for all employees as its consistently applied compensation measure because model cash compensation is an internal Company measure that reasonably reflects relative annual compensation to identify the median employee. Given its global population, the Company used currency exchange rates as of September 27, 2017 to determine model cash compensation and therefore the median employee. The Company did not use any cost-of-living adjustments in identifying the median employee.

Using model cash compensation as the consistently applied compensation measure, the Company determined the median employee is a field application engineer working in Asia. After identifying the median employee, Teradyne calculated annual total compensation for the median employee using the same methodology it used for the Company’s CEO as set forth in the Summary Compensation Table of this Proxy Statement. As the median employee was not paid in US dollars, the Company used currency exchange rates as of December 27, 2017 to determine the median employee’s annual total compensation.

Executive Compensation Program

The Board has implemented an executive compensation program that fosters a performance-oriented environment by tying a significant portion of each executive officer’s cash and equity compensation to the achievement of short-term and long-term performance targets that are important to the Company and its shareholders. The approach is designed to focus the executive officers on creating shareholder value over the long-term and on delivering exceptional performance throughout fluctuations in business cycles.

The following charts illustrate performance-based target compensation for the Chief Executive Officer and the other named executive officers (as a group) as a percentage of total target compensation for 2017.

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Target Cash Compensation

Target cash compensation includes base salary and performance-based variable cash compensation. Base salary is designed to attract and retain talented executives and to provide a stable source of income. Variable cash compensation links the executive officer’s cash compensation with the Company’s annual and strategic performance objectives and motivates the executive officers to achieve Teradyne’s financial, operating, and long-term growth goals.

Each January, the Compensation Committee sets target cash compensation for each executive officer, other than the Chief Executive Officer. The independent members of the Board set the target cash compensation for the Chief Executive Officer. The goal is that the target total cash compensation for each individual should be competitive with cash compensation of individuals holding similar roles and responsibilities as reflected by the peer group and survey data. The Committee and the Board also consider the performance of the Company relative to its peers, individual performance and the role and responsibilities of the executive officer.

For 2018, the Compensation Committee set performance-based variable cash compensation for executive officers as a percentage of base salary with a range, at target, of 70% to 85% of base salary and the independent members of the Board set the target level for the Chief Executive Officer at 110% of base salary as set forth in the following table.

Executive variable cash compensation is capped at 200% of target to limit actual executive compensation for periods of exceptionally strong performance.

In January, the Compensation Committee also establishes the specific performance measures and formulas for the year’s variable cash compensation program. For 2017, the performance-based variable cash compensation goals were determined by operating division and were based on: 1) a baseline formula for non-GAAP profit rate before interest and taxes or PBIT² percentage; 2) two-year rolling revenue growth rate; and 3) measurable operating, financial and strategic goals. These components are aggregated in the variable cash compensation payout calculation and capped at 200% of target. The performance-based variable cash compensation for the named executive officers is determined by a formula comprised of Company-wide PBIT percentage, Company-wide revenue growth and the performance against key operating, financial and strategic goals by the Company’s business divisions. In 2018, the Board increased the PBIT rate target of the performance-based variable cash compensation program from 15% to 17% and increased the percentage PBIT required for maximum variable cash compensation payout from 25% to 30%. The variable cash compensation for Messrs. Jagiela, Beecher and Gray is calculated by applying a weighted average formula of the performance of all divisions. The variable cash compensation formula for Messrs. Smith and Robbins is divided equally between (a) the weighted average formula of the performance of all divisions and (b) the performance of their respective divisions (Semiconductor Test for Mr. Smith and Wireless Test for Mr. Robbins). In establishing the performance target levels for the

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financial performance measures, the Compensation Committee sets the PBIT percentage rate and the revenue growth rate at a level it believes to be appropriate for the businesses in which the Company operates, and sets other operating and financial goals based on the specific objectives of the Company for the year, as well as certain strategic objectives.

These operating, financial and strategic goals may include strategic customer wins, market share gains, gross margin and profitability goals, new product introductions, engineering project milestones, cost controls and growth targets – the achievement of which positively impact the Company’s long-term performance. Teradyne is not disclosing the specific performance target levels for these goals because they represent confidential, commercially sensitive information that Teradyne does not disclose to the public and it believes, if disclosed, would cause competitive harm. The target levels for such performance measures such as product development, market share, new product introductions, and margin goals for new and existing products are inherently competitive and, if disclosed, would provide valuable insight into specific customers, markets, and areas where Teradyne is focusing.

The Compensation Committee sets operating, financial and strategic goals for the variable cash compensation program to align executive compensation with both the Company’s short-term financial and operating strategy and its long-term profitable growth strategy. In developing the variable cash compensation program, the Compensation Committee takes into account that these goals are difficult to achieve because they are heavily contingent upon multiple factors, including technological innovations, customer demand and the actions of competitors. The target levels for the measures to improve competitive positioning are challenging due to the strong competition within the Company’s markets, while technical and engineering innovations make product development goals difficult to achieve in a fixed time frame. In 2015 and prior years, the operating, financial and strategic target levels increased or decreased the variable cash compensation payout up to 60%. Starting in 2016, the Compensation Committee modified the program so that the revenue growth metric contributes 30% towards the target variable cash compensation payout with the PBIT metric contributing 40% and the operating, financial and strategic goals contributing 30%.

Following the close of each fiscal year, the variable cash pay-out is calculated and presented to the Compensation Committee for review. Based on the performance of the divisions, the Compensation Committee, or the independent members of the Board for the Chief Executive Officer, then determines the variable cash compensation for the named executive officers.

Equity Compensation

Equity compensation is designed to align executive compensation with shareholder return, motivate and reward individual and Company performance, and attract and retain talented individuals. Teradyne’s equity compensation program provides three types of equity incentives: (1) time-based awards which vest in equal amounts annually over four years conditioned upon continued service, supporting the Company’s employee retention efforts; (2) performance-based awards which reward equally at target the achievement of relative total shareholder return and cumulative PBIT percentage, in each case, measured at the end of a three-year performance period; (3) stock options granted at market value which vest in equal amounts annually over four years conditioned upon continued service, where executives benefit from stock appreciation. These equity compensation components are consistent with the Company’s long-term goals to deliver profitability, revenue growth, and superior return to shareholders.

Equity awards are made under the shareholder approved 2006 Equity and Cash Compensation Incentive Plan. The awards granted to the executive officers are based upon each individual’s relative contribution, performance, and responsibility within the organization. The Compensation Committee assesses these factors each year for each executive officer.

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At the beginning of each year, the Compensation Committee approves an overall equity budget to be used for awards to the executive officers, employees and directors. Various factors are used in determining the annual equity award budget, including the total projected compensation expense to be incurred as a result of the equity awards, “overhang” from previously issued and outstanding awards, burn rates and competitive market data from the peer group and compensation surveys. The independent members of the Board determine the award type and level for the Chief Executive Officer and the Compensation Committee determines the award type and level for all other executive officers. Management approves equity awards for all other employees within the overall equity budget pursuant to a delegation of authority from the Compensation Committee.

Since 2006, the equity awards granted to the executive officers have been made in January in order to align the evaluation and award of the equity compensation to the end of the fiscal year. The fair market value for these awards is determined using the closing price on the date of grant as provided by the terms of Teradyne’s equity plans. No employee equity awards are granted during blackout periods, except for new hire grants. New hire grants are automatically issued on the first trading day of the month following the employee’s start date, in accordance with guidelines approved by the Compensation Committee.

Retirement Benefits

Retirement benefits are designed to attract and retain talented employees and reward long-term service to the Company. Retirement benefits provide a long-term savings opportunity for employees on a tax-efficient basis. In the U.S., the Company offers the Teradyne, Inc. Savings Plan (the “401k Plan”). The 401k Plan is available to all employees and provides a discretionary employer matching contribution. Executive officers may participate in the 401k Plan on the same terms as those available for other eligible U.S. employees. For 2017, the Company matched $1 for every $1 contributed by the employee to the Company’s 401k Plan and Supplemental Savings Plan (as defined below) up to 4% of the employee’s compensation (subject to Internal Revenue Service limits) for employees not accruing benefits in the Retirement Plan or SERP (each as defined below), and no match for employees continuing to accrue benefits in the Retirement Plan or SERP.

The Company also maintains a non-qualified Teradyne, Inc. Supplemental Savings Plan (the “Supplemental Savings Plan”) for certain employees whose benefits would otherwise be capped at limits based on restrictions imposed by the Internal Revenue Service. For additional information regarding the Supplemental Savings Plan, see the “Nonqualified Deferred Compensation Table.”

Teradyne also provides a separate retirement plan, the Retirement Plan for Employees of Teradyne, Inc. (the “Retirement Plan”). In 1999, this plan was discontinued for new employees, but participating employees were given the option to elect to continue in the plan or opt out of the plan in order to receive a higher employer match in the 401k Plan. Commencing in 2009, employees who continued in the separate Retirement Plan have received no 401k employer match. No named executive officer is currently earning benefits under the Retirement Plan.

The Company also maintains a defined benefit Supplemental Executive Retirement Plan (“SERP”) for certain senior employees. For additional information, see the “Pension Benefits Table.” Mr. Robbins is the only named executive officer earning benefits under the SERP.

The Company also provides certain other benefits to its retirees. Based on age and service, Messrs. Jagiela, Beecher and Robbins qualify for these broad-based employee benefits. At retirement, they will be eligible to receive a pro-rated amount of variable cash compensation at target through the date of their retirement. In addition, most retirees can continue in the health, dental and vision programs at a partially subsidized rate. The “Pension Benefits Table” lists the present value of accumulated benefits for Messrs. Jagiela and Robbins as of December 31, 2017.

In addition, if a named executive officer dies, suffers permanent disability, retires or is terminated without cause after at least ten years of service and having reached the age of sixty, then (a) one hundred percent of the

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shares issued upon settlement of a performance-based RSU grant awarded more than 365 days prior to the retirement date will vest on the date the amount of shares underlying the performance-based RSU grant are determined at the end of the three-year performance period and (b) a pro-rata portion (based on the number of days the named executive officer was employed by the Company during the 365 day period) of the shares issued upon settlement of a performance-based RSU grant awarded less than 365 days prior to the retirement date will vest on the date the amount of shares underlying the performance-based RSU grant are determined at the end of the three-year performance period.

The Compensation Committee considers the expense of the executive officers’ retirement benefits in determining their overall compensation.

Chief Executive Officer Separation Agreement

Upon his appointment as Chief Executive Officer, Mr. Jagiela entered into an Agreement Regarding Termination Benefits (“Separation Agreement”). The term of this Separation Agreement, entered into on January 22, 2014, is three years, and extends for additional one-year periods unless Teradyne gives notice of non-renewal to Mr. Jagiela. The Separation Agreement contains a three-year, post-employment customer and employee non-hire and non-solicitation restriction and a three-year, post-employment non-competition restriction. In consideration of these restrictions, Mr. Jagiela is eligible to receive severance payments for two years at his annual target compensation rate and continued vesting of non-performance based equity awards for two years and of performance-based equity awards for three years following his termination by Teradyne for any reason other than death, disability or cause, each as defined in the Separation Agreement, or in a circumstance in which Mr. Jagiela would be eligible to payments pursuant to his Change in Control Agreement. During the two-year post-employment period, Mr. Jagiela is also eligible for ongoing health, dental and vision insurance plan coverage, provided on the same terms as those in effect at the date of his termination. If Teradyne terminates Mr. Jagiela’s employment due to his disability and Mr. Jagiela is not eligible to receive payments pursuant to his Change in Control Agreement, he is eligible for a two-year severance payment to the extent he is not eligible to receive disability insurance, which payment is reduced by any compensation Mr. Jagiela receives from other employment.

Change in Control Agreements

The Compensation Committee and the Board have approved a change in control agreement for each executive officer similar to those offered by most peer companies. The independent members of the Board also have approved an Agreement Regarding Termination Benefits with the Chief Executive Officer. The structure and design of these agreements, including the level of payments and benefits provided to the executive officers under the agreements, are intended to be similar to those provided by peer companies.

The change in control agreements provide a retention tool for the executive officers to remain with the Company both during and following the change in control transaction and enable the executive officers to focus on the continuing business operations and the success of a potential business combination that the Board has determined to be in the best interests of the shareholders. This results in stability and continuity of operations during a potentially uncertain time.

Other Benefits

To attract and retain highly qualified employees, the Company offers benefit programs designed to be competitive in each country in which the Company operates. All U.S. employees and executive officers participate in similar healthcare, life and disability insurance, and other welfare programs.

To offer most employees an opportunity to acquire an equity interest in Teradyne, the Company offers an Employee Stock Purchase Plan. This plan allows participating employees to purchase shares of common stock

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through regular payroll deductions of up to 10% of their annual compensation, to a maximum of $25,000 per calendar year, not to exceed 6,000 shares. The purchase price is an amount equal to 85% of the fair market value of the common stock at market close on the last trading day of the purchase period. Each purchase period is a six-month period beginning in January or July and ending in June or December, respectively. Over fifty percent of world-wide employees, including certain executive officers, currently participate in the plan.

Teradyne’s Cash Profit Sharing Plan distributes 10% of Teradyne’s GAAP pre-tax profit (excluding its Wireless Test Division acquired in 2011, the Avionics Interface Technologies business acquired in 2014, and its Industrial Automation Division acquired in 2015) to all eligible employees, as determined by the Compensation Committee, including eligible executive officers. Plan payments are distributed as a consistent percentage of target cash compensation for all participants twice per year subject to any restrictions or exceptions approved by the Compensation Committee.

Stock Ownership Guidelines

The Company maintains stock retention and stock ownership guidelines to align the interests of the executive officers with those of the shareholders and ensure that the executive officers responsible for overseeing operations have an ongoing financial stake in the Company’s success.

Pursuant to these guidelines, the Chief Executive Officer is expected to attain and maintain an investment level in shares of the Company’s common stock equal to three times his annual base salary and all other executive officers are expected to attain and maintain an investment level equal to two times their annual base salary. In each case, such investment levels are expected to be attained within five years from the date upon which the individual becomes subject to the guidelines. Until this ownership guideline is met, the executive officers are expected to retain at least 50% of the shares issued pursuant to an equity award, after taxes.

Shares subject to the stock ownership guidelines do not include any pledged Company stock. The Company maintains a policy prohibiting executives and directors from pledging Teradyne stock.

During the year, the executive officers complied with the stock ownership guidelines, and at year end, all named executive officers other than Mr. Smith (who became subject to the guidelines upon his promotion in February 2016) were at or above the stock ownership guideline levels.

Compensation Recoupment Policy

A compensation recoupment policy is applicable to all the executive officers. Under this policy, the Company may recover incentive compensation that was based on achievement of financial results that were subsequently restated if an executive officer was found to be personally responsible for any fraud or intentional misconduct that caused the restatement. This policy covers variable cash compensation and performance-based equity awards. The Board will review the Company’s compensation recoupment policy following the adoption of regulations by the Securities and Exchange Commission implementing Section 954 of the Dodd-Frank Act.

Impact of Accounting and Tax Treatment on Executive Compensation

Prior to tax year 2018, under Section 162(m) of the Internal Revenue Code of 1986 (the “Code”), publicly-traded corporations could not deduct each year for federal income tax purposes compensation paid to certain executive officers (the Chief Executive Officer and each of the three other most highly-compensated executive officers, other than its chief financial officer) in excess of $1 million per executive. This deduction limitation did not apply, however, to compensation that constituted “qualified performance-based compensation” within the meaning of Section 162(m) of the Code. In designing the Company’s executive compensation programs, the Compensation Committee considering the deductibility of executive compensation under Section 162(m) of the Code, but maintained the flexibility to award and pay non-deductible compensation if the Company believed that such compensation was in the interest of the Company.

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The exemption from Section 162(m)’s deduction limit for “qualified performance-based compensation” has been repealed, effective for taxable years beginning after December 31, 2017, such that compensation paid to the Company’s covered executive officers in excess of $1 million per person per year will not be deductible unless it qualifies for transition relief applicable to certain compensation arrangements in place as of November 2, 2017 and not later modified. In addition, for taxable years beginning after December 31, 2017, the term “covered employees” was expanded to include the Company’s chief financial officer. Further, each individual who is a covered employee of the Company for any tax year beginning after December 31, 2016, will remain a covered employee for all future tax years with the result that except for certain grandfathered arrangements the compensation paid by Teradyne after a covered employee’s termination of employment (including severance pay, non-qualified deferred compensation and death benefits) will no longer be tax deductible to the extent it exceeds the annual $1 million dollar per person limit.

Despite the Compensation Committee’s prior efforts to structure the executive team annual variable cash compensation and performance-based RSUs in a manner initially intended to be exempt from Section 162(m) and therefore not subject to its deduction limits, because of ambiguities and uncertainties as to the application and interpretation of Section 162(m), including the uncertain scope of the transition relief under the legislation repealing Section 162(m)’s exemption from the deduction limit, no assurance can be given that compensation intended to satisfy the requirements for exemption from Section 162(m) in fact will be exempt.

Given the uncertain scope of the transition relief and the absence of any IRS guidance, the full impact of new Section 162(m) on the Company and its executive compensation practices is not yet known. The Compensation Committee will continue to monitor developments and will retain the flexibility to pay non-deductible compensation if it believes that payment of such compensation is in the interests of the Company. Despite the changes to Section 162(m) as a result of the recent tax legislation, the Compensation Committee currently expects (consistent with its executive compensation philosophy) to structure the Company’s executive compensation programs such that a significant portion of executive compensation is linked to the performance of Teradyne.

The Compensation Committee also takes into consideration the accounting treatment of the different forms of awards it may grant to executive officers.

2017 Executive Compensation

In January 2017, the Compensation Committee reviewed the performance of the named executive officers during 2016 and conducted its annual assessment of executive compensation. In addition to the executive officer’s performance during 2016, the Compensation Committee considered competitive market data provided by Compensia, its independent executive compensation consultant, in setting executive compensation for 2017.

2017 Target Cash Compensation

To align cash compensation with the industry and the competitive market, the Compensation Committee, and the independent members of the Board in the case of the Chief Executive Officer, approved increases in the 2017 base salaries and target cash compensation for certain of the named executive officers. The 2016 and 2017 base salaries and target cash compensation for the named executive officers are set forth below:

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The performance-based variable cash compensation in 2017 was determined by operating division and based on the following:

These components were aggregated in the variable cash compensation payout calculation with the revenue growth metric contributing 30%, the PBIT metric contributing 40% and the strategic goals contributing 30%, based upon target performance of each metric. Achievement of a PBIT rate above 15% and of a revenue growth rate above 3% were necessary to result in payments above target for those metrics. Achievement of a 25% PBIT rate and a 10% revenue growth rate would have resulted in maximum payout of 200% of target for those metrics. The operating, financial and strategic goals for 2017 included market share gains, profit margin and gross margin targets, revenue and bookings targets, market penetration with new products and product development milestones in the Company’s various business units. The maximum variable cash compensation payout for the named executive officers was 200% of the target amount.

The variable cash compensation for Messrs. Jagiela, Beecher and Gray was calculated by applying a revenue-weighted average formula of the performance of all divisions. The variable cash compensation formula for Messrs. Smith and Robbins was split equally between (a) the weighted average formula of the performance of all divisions and (b) the performance of their respective divisions (Semiconductor Test for Mr. Smith and Wireless Test for Mr. Robbins).

In January 2018, the Compensation Committee reviewed the Company’s performance against its 2017 performance-based variable cash compensation targets. The divisions’ performances varied from 31% to 194% of target. The variable cash compensation payout for the Semiconductor Test Division, which historically accounts for approximately 70-80% of Teradyne’s revenue and a commensurate portion of the variable cash compensation calculation for the executive officers, exceeded its revenue, market share and PBIT percentage targets which positively impacted the calculation. Once the performance of the divisions was determined, the payout for the named executive officers was calculated by applying a weighted averaging formula of the performance of all divisions.

The Compensation Committee, and the independent members of the Board in the case of the Chief Executive Officer, approved for 2017 (1) a 180% payout of target variable cash compensation for Messrs. Jagiela, Beecher and Gray, (2) a 158% payout of target for Mr. Robbins, and (3) a 181% payout of target for Mr. Smith. Due to the different variable compensation factors for each executive officer, total cash compensation paid was between 25% and 42% above target, depending on the named executive officer. The payout amounts of 2017 performance-based variable cash compensation for each named executive officer can be found under the column “Non-Equity Incentive Plan Compensation” in the Summary Compensation Table.

2017 Equity Awards

In January 2017, the Compensation Committee, and the independent members of the Board in the case of the Chief Executive Officer, approved the 2017 equity awards for the named executive officers. The Compensation Committee and the independent members of the Board continued to award RSUs and stock options for the 2017 equity grant with the same mix of time-based RSUs (40%), performance-based RSUs (50%), and non-qualified stock options (10%) as in 2016.

For the 2017 performance-based RSUs, the Compensation Committee approved performance metrics for the performance-based RSUs split equally between (1) a relative total shareholder return (“TSR”) formula measured at the end of a three-year performance period (using a 45-day price averaging method at both the beginning and

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the end of the three-year performance period) and (2) a three-year cumulative PBIT rate. The Compensation Committee chose the Company’s relative TSR performance and a cumulative PBIT rate as the equal measures for performance-based RSUs consistent with the Company’s long-term goal to deliver profitability and superior return to shareholders. The TSR-based metric aligns the interests of executive officers with the interests of shareholders and provides a significant incentive for the executive officers to focus on increasing long-term shareholder value, while the PBIT-based metric provides an incentive to maintain a high level of profitability over the long-term.

For the 2017 performance-based RSUs, Teradyne’s TSR performance is measured against the NYSE Composite Index (ticker symbol: NYA) which consists of over 1,900 companies listed on the New York Stock Exchange. In 2016, following a review of alternative comparator indices and peer groups, and with input from Compensia, the Compensation Committee changed the TSR index from the Philadelphia Semiconductor Index (ticker symbol: SOX) used for the 2014 and 2015 performance-based RSU awards to the NYA Index because the Committee determined that a comparison against the NYA Index provides a better indicator of Teradyne’s performance than the SOX Index. The NYA Index represents a broad, diverse group of high quality investment alternatives, while the SOX Index is a weighted, specialized index dominated by semiconductor device manufacturers. Teradyne has become an increasingly diverse company expanding beyond its traditional semiconductor test business with the additions of storage and wireless test businesses as well as the 2015 acquisition of Universal Robots which established Teradyne’s industrial automation business. The Compensation Committee concluded that the more diverse NYA Index is a more appropriate benchmark for Teradyne than the narrower SOX Index. Teradyne’s TSR percentage point gain minus that of the NYA Index at the end of the three-year period will determine the number of performance-based RSUs earned based on the TSR-based performance metric. With respect to the portion of the performance-based RSUs subject to vesting based on TSR performance, the TSR measurement allows for payment from 0% to 200% of target shares based on underperforming or exceeding the NYA Index’s three-year return and is capped at four times the grant date value.

The PBIT performance for the 2017 grant of performance-based RSUs has a three-year cumulative target of 15% with a maximum of 25%. With respect to the portion of the performance-based RSUs subject to vesting based on PBIT, the PBIT measurement allows for payment from 0% to 200% of target shares based on cumulative three-year PBIT rate.

The number of performance-based RSUs that may be paid out based on relative TSR performance and PBIT rate are each illustrated below:

The final number of performance-based RSUs earned will be determined by the Compensation Committee and the independent members of the Board, as applicable, upon the completion of the three-year performance period. All of the performance-based RSUs earned will vest at the end of the three-year performance period. No performance-based RSUs will vest if the named executive officer is no longer an employee at the end of the three-year period; provided, however, if the named executive officer’s employment ends prior to the

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determination of the performance percentage due to (1) permanent disability or death or (2) retirement or termination other than for cause, after attaining both at least age sixty and at least ten years of service, then (a) one hundred percent of the shares issued upon settlement of a performance-based RSU grant awarded more than 365 days prior to the last day of employment will vest on the date the amount of shares underlying the performance-based RSU grant are determined at the end of the three-year performance period and (b) a pro-rata portion (based on the number of days the named executive officer was employed by the Company during the 365 day period) of the shares issued upon settlement of a performance-based RSU grant awarded less than 365 days prior to the last day of employment will vest on the date the amount of shares underlying the performance-based RSU grant are determined at the end of the three-year performance period.

To maintain a competitive equity compensation level relative to the competitive market, the 2017 equity award values at target for the named executive officers were increased from the 2016 equity award values at target. Mr. Jagiela’s 2017 equity award at target increased 21.8%, and the awards at target for Messrs. Beecher, Gray, Robbins, and Smith were increased 4.2%, 7.1%, 0.0%, and 41.5% (in each case, for purposes of restricted stock units, value is based on the stock price on the date of grant), respectively.

The specific number of RSUs was calculated based upon the closing market price of the Company’s common stock on the grant date and the specific number of options was calculated based upon the Black-Scholes grant date fair value. The table below sets forth the grant date equity values of the 2017 time-based RSUs, performance-based RSUs and stock options for each named executive officer.

The grant date for the 2017 equity awards approved by the Compensation Committee was January 27, 2017. The 2017 time-based RSU grants for all employees, including named executive officers, vest in equal amounts annually over four years, commencing on the first anniversary of the grant. The performance-based RSUs for 2017 vest on the third anniversary of the grant date with (a) the number of performance-based RSUs that vest based upon the determination of Teradyne’s TSR performance relative to the NYA Index and (b) the number of performance-based RSUs that vest based on three-year cumulative PBIT, in each case, as described above. The stock option grants vest in equal amounts annually over four years, commencing on the first anniversary of the grant date, and have a term of seven years from the date of grant.

The number of performance-based RSUs granted is disclosed in the Grants of Plan Based Awards Table and the value of the performance-based shares granted for each named executive officer is disclosed in the footnotes to the column “Stock Awards” in the Summary Compensation Table.

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2018 Executive Compensation

From November 2017 to January 2018, the Compensation Committee conducted its annual assessment of executive compensation. The Compensation Committee evaluated the performance of the named executive officers during 2017 and concluded that the Company had:

In addition to evaluating the Company’s performance during 2017, the Compensation Committee directed its independent executive compensation consultant, Compensia, to assess executive compensation for 2018 using the compensation peer group and the Radford survey data. The Compensation Committee also took into account the positive results of the shareholder advisory vote on executive compensation by continuing to focus on performance-based compensation.

2018 Target Cash Compensation

The Compensation Committee, and the independent members of the Board in the case of the Chief Executive Officer, approved increases in the 2018 base salaries and target cash compensation for certain of the named executive officers to align cash compensation with the industry and the competitive market. The 2017 and 2018 base salaries and target cash compensation for the named executive officers are set forth below:

The independent members of the Board increased Mr. Jagiela’s base salary by 5.2% and retained his performance-based variable cash compensation target from at 110% of his annual base salary. The Compensation Committee increased the base salary of Messrs. Beecher, Gray, Robbins and Smith by 3.6%, 1.4%, 3.0%, and 18.4%, respectively. Mr. Beecher retained his performance-based variable cash compensation target at 85% of his annual base salary, Mr. Gray retained his performance-based variable cash compensation target at 70% of his annual base salary, and Messrs. Smith and Robbins retained their performance-based variable cash compensation target at 75% of their respective annual base salaries.

The Board continued to use the same structure for determining performance-based variable cash compensation as in 2017, but increased the PBIT rate target from 15% to 17% as well as increased the PBIT rate required to achieve the maximum payout from 25% to 30%. The variable cash compensation for Messrs. Jagiela, Beecher and Gray is calculated by applying a weighted averaging formula of the performance of all divisions. The variable cash compensation formula for Messrs. Smith and Robbins is split equally between (a) the weighted average formula of the performance of all divisions and (b) the performance of their respective divisions (Semiconductor Test for Mr. Smith and Wireless Test for Mr. Robbins).

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The operating, financial and strategic goals for 2018 include market share gains, gross margin targets, profit margin targets, revenue and bookings targets, market penetration with new products and product development milestones in the Company’s various business units. The Compensation Committee believes these business and financial objectives effectively balance short-term profitability with long-term investment and growth. The maximum variable cash compensation payout for the name executive officers remains 200% of the target amount.

2018 Equity Award

In January 2018, the Compensation Committee, and the independent members of the Board in the case of the Chief Executive Officer, approved equity awards for the named executive officers. The Compensation Committee and independent members of the Board retained the same mix of time-based RSUs (40%), performance-based RSUs (50%) and non-qualified stock options (10%) as used in the 2017 equity awards for the 2018 equity awards.

As in 2017, the 2018 performance-based RSUs were calculated using an equal split between (1) a relative total shareholder return (“TSR”) formula measured at the end of a three-year performance period (using a 45-day price averaging method at both the beginning and the end of the three-year performance period) and (2) a three-year cumulative PBIT rate. For the 2018 performance-based RSU grant, Teradyne’s TSR performance will continue to be measured against the NYA Index while the Board increased the three-year cumulative target PBIT rate from 15% to 17% and increased the PBIT rate required to achieve the maximum payout from 25% to 30%. The final number of PBIT and TSR PRSUs that vest will vary based upon the level of performance achieved from 200% to 0% of the target shares. The final number of TSR PRSUs that vest is capped at four times the grant date value.

The final number of performance-based RSUs earned will be determined by the Compensation Committee and the independent members of the Board, as applicable, upon the completion of the three-year performance period. All of the performance-based RSUs earned will vest at the end of the three-year performance period. No performance-based RSUs will vest if the named executive officer is no longer an employee at the end of the three-year period; provided, however, if the named executive officer’s employment ends prior to the determination of the performance percentage due to (1) permanent disability or death or (2) retirement or termination other than for cause, after attaining both at least age sixty and at least ten years of service, then (a) one hundred percent of the shares issued upon settlement of a performance-based RSU grant awarded more than 365 days prior to the last day of employment will vest on the date the amount of shares underlying the performance-based RSU grant are determined at the end of the three-year performance period and (b) a pro-rata portion (based on the number of days the named executive officer was employed by the Company during the 365 day period) of the shares issued upon settlement of a performance-based RSU grant awarded less than 365 days prior to the last day of employment will vest on the date the amount of shares underlying the performance-based RSU grant are determined at the end of the three-year performance period.

To maintain a competitive equity compensation level relative to the competitive market, the 2018 equity award values at target for certain of the named executive officers were increased from the 2017 equity award values at target. Mr. Jagiela’s 2018 equity award increased 5.2%, and the awards for Messrs. Beecher, Gray, Robbins, and Smith were increased 3.0%, 3.2%, 3.0% and 20.0% (in each case, for purposes of restricted stock units, value is based on the stock price on the date of grant), respectively.

The specific number of RSUs was calculated based upon the closing market price of the Company’s common stock on the grant date and the specific number of options was calculated based upon the Black-Scholes

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grant date fair value. The table below sets forth the grant date equity values of the 2018 time-based RSUs, performance-based RSUs and stock options for each named executive officer.

The grant date for the 2018 equity grants approved by the Compensation Committee was January 26, 2018. The time-based RSU awards for all employees, including named executive officers, vest in equal amounts annually over four years, commencing on the first anniversary of the date of grant. The performance-based RSUs for 2018 vest on the third anniversary of the grant date with (a) the number of performance-based RSUs that vest based upon the determination of Teradyne’s three-year TSR performance relative to the NYA Index and (b) the number of performance-based RSUs that vest based on three-year cumulative PBIT, in each case, as described above. The stock options vest in equal amounts annually over four years, commencing on the first anniversary of the date of grant, and have a term of seven years from the date of grant.

2018 Determination of Performance Achievement for 2015 Performance-Based RSU Grant

In January 2018, the Compensation Committee reviewed performance against the 2015 performance-based RSU target: a TSR formula measured against the SOX at the end of the three-year performance period (using a 45-day price averaging method at both the beginning and the end of the three-year performance period) capped at four times the grant date value. On this basis, the Compensation Committee approved the number of the 2015 performance-based RSUs at 154.5% of target which vested in full on January 30, 2018.

Compensation Committee Report

The Compensation Discussion and Analysis has been reviewed with management. Based on the review and discussion with management, the Compensation Committee has recommended to the Board of Directors that the Compensation Discussion and Analysis be included in this proxy statement and in Teradyne’s Annual Report on Form 10-K for the year ended December 31, 2017.

COMPENSATION COMMITTEE

Timothy E. Guertin (Chair)

Daniel W. Christman

Marilyn Matz

Roy A. Vallee

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The information contained in the report above shall not be deemed to be “soliciting material” or to be “filed” with the SEC, nor shall such information be incorporated by reference into any future filing under the Securities Act of 1933, as amended (the “Securities Act”) or the Exchange Act, except to the extent that Teradyne specifically incorporates it by reference in any such filing.

Executive Compensation Tables

Summary Compensation Table for 2017

The table below summarizes the total compensation paid or earned by each of the named executive officers during the fiscal years ended December 31, 2017, 2016, and 2015.

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Grants of Plan-Based Awards Table for 2017

The following table sets forth information concerning plan-based awards to the named executive officers during the fiscal year ended December 31, 2017.