Edgar Filing: MANTECH INTERNATIONAL CORP

Schedule 14A

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

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ManTech International Corporation

(Name of Registrant as Specified In Its Charter)

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LOGO

12015 Lee Jackson Highway

Fairfax, VA 22033-3300

April 2, 2012

Dear Stockholder:

You are cordially invited to attend the 2012 Annual Meeting of Stockholders of ManTech International Corporation, which will be held at The Hyatt Fair Lakes, 12777 Fair Lakes Circle, Fairfax, VA 22033, on Thursday, May 10, 2012, at 11 am (EDT).

We have provided details of the business to be conducted at the meeting in the accompanying Notice of Annual Meeting of Stockholders, proxy statement, and form of proxy. We encourage you to read these materials so that you may be informed about the business to come before the meeting.

Your participation is important, regardless of the number of shares you own. In order for us to have an efficient meeting, please sign, date, and return the enclosed proxy card promptly in the accompanying reply envelope. You can find additional information concerning our voting procedures in the accompanying materials.

We look forward to seeing you at the meeting.

Sincerely,

LOGO

George J. Pedersen

Chairman of the Board and Chief Executive Officer

LOGO

12015 Lee Jackson Highway

Fairfax, VA 22033-3300

NOTICE OF ANNUAL MEETING OF STOCKHOLDERS

TO BE HELD MAY 10, 2012

The 2012 Annual Meeting of Stockholders (Annual Meeting) of ManTech International Corporation, a Delaware corporation (the Company), will be held at The Hyatt Fair Lakes, 12777 Fair Lakes Circle, Fairfax, VA 22033, on Thursday, May 10, 2012, at 11 am (EDT), for the following purposes, as more fully described in the proxy statement accompanying this notice:

To elect nine (9) persons as directors of the Company, each to serve for a term of one year, or until their respective successors shall have been duly elected and qualified;

To ratify the appointment of Deloitte & Touche LLP to serve as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2012; and

To transact such other business as may properly come before the Annual Meeting or any adjournments or postponements thereof.

Stockholders of record at the close of business on March 15, 2012 (Record Date) are entitled to vote at the Annual Meeting. A complete list of stockholders eligible to vote at the Annual Meeting will be available for examination by our stockholders during the ten days prior to the Annual Meeting, between the hours of 9 am and 5 pm (EDT), at the offices of the Company at 12015 Lee Jackson Highway, Fairfax, VA 22033-3300.

You are cordially invited to attend the Annual Meeting in person. Whether or not you expect to attend the Annual Meeting, your vote is important. To assure your representation at the Annual Meeting, please sign and date the enclosed proxy card, and return it promptly in the accompanying reply envelope, which requires no additional postage. Should you receive more than one proxy because your shares are registered in different names and addresses, each proxy should be signed and returned to assure that all your shares are voted.

The proxy statement and form of proxy are being mailed on or about April 2, 2012.

By Order of the Board of Directors

LOGO

George J. Pedersen

Chairman of the Board and Chief Executive Officer

Fairfax, Virginia

April 2, 2012

Important Notice Regarding Availability of Proxy Materials for ManTech’s

Annual Meeting of Stockholders to be Held on May 10, 2012:

The Proxy Statement, our Proxy Card and our Annual Report to Shareholders are available at http://investor.mantech.com/annualmeeting

LOGO

12015 Lee Jackson Highway

Fairfax, VA 22033-3300

PROXY STATEMENT FOR

2012 ANNUAL MEETING OF STOCKHOLDERS

The Board of Directors (the Board) of ManTech International Corporation (the Company) is soliciting proxies to be voted at the 2012 Annual Meeting of Stockholders (Annual Meeting) to be held on Thursday, May 10, 2012, at 11 am (EDT), at The Hyatt Fair Lakes, 12777 Fair Lakes Circle, Fairfax, VA 22033, and at any adjournments or postponements thereof.

The mailing address of our principal executive offices is 12015 Lee Jackson Highway, Fairfax, VA 22033-3300. This proxy statement, the accompanying Notice of Annual Meeting of Stockholders, and the enclosed proxy card are first being mailed to our stockholders on or about April 2, 2012 (Mailing Date).

GENERAL INFORMATION

The Board is soliciting proxies to be voted at the Annual Meeting. When we ask you for your proxy, we must provide you with a proxy statement that contains certain information specified by law.

At the Annual Meeting, we will ask you to consider and vote on the following matters:

To elect nine (9) persons as directors of the Company, each to serve for a term of one year, or until their respective successors shall have been duly elected and qualified; and

To ratify the appointment of Deloitte & Touche LLP to serve as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2012.

We do not expect any other items of business because the deadline for stockholder proposals and nominations has already passed. Nonetheless, in case there is an unforeseen need, the accompanying proxy gives discretionary authority to the persons named on the proxy, George J. Pedersen and Jeffrey S. Brown, with respect to any other matters that might be brought before the meeting. Those persons intend to vote that proxy in accordance with their discretion and best judgment.

Record Date and Stockholders Entitled to Vote

Record Date

Stockholders as of the close of business on March 15, 2012 (Record Date) may vote at the Annual Meeting.

Our Stock

We have two classes of outstanding stock: our Class A common stock and our Class B common stock. As of March 15, 2012, a total of 36,884,571 shares were outstanding: 23,691,726 shares of Class A common stock and 13,192,845 shares of Class B common stock. Holders of Class A common stock are entitled to one vote for each share of Class A common stock they hold on the Record Date. Holders of Class B common stock are entitled to ten votes for each share of Class B common stock they hold on the Record Date.

Voting Requirements and Other Matters

Quorum

The holders of a majority in voting power of the common stock entitled to vote at the Annual Meeting must be present, either in person or by proxy, to constitute a quorum for the Annual Meeting. Abstentions and broker non-votes are considered present at the meeting for purposes of determining whether a quorum is present.

How to Vote

You can only vote your shares at the Annual Meeting if you are present either in person or by proxy.

If you vote by mail, you must sign and date each proxy card that you receive, and return it in the prepaid envelope. Sign your name exactly as it appears on the proxy. If you return a proxy card that is not signed, then your vote cannot be counted. If you return a proxy card that is signed and dated, but you do not specify voting instructions, we will vote on your behalf as follows:

FOR the election of the nine (9) directors nominated by our Board and named in this proxy statement (Proposal 1 – Election of Directors);

FOR the ratification of the appointment of Deloitte & Touche, LLP as the Company’s independent registered public accounting firm (Proposal 2 – Ratification of Auditors).

You may vote your shares in person at the Annual Meeting. However, we encourage you to vote by proxy card even if you plan to attend the meeting.

Voting ESOP Shares

Stockholders who are current or former employees participating in our Employee Stock Ownership Plan (ESOP) and have shares of our stock allocated to their account as of the Record Date have the right to direct the plan trustee on how to vote their shares. If you do not send instructions to the plan trustee in a proper manner, or if the instructions are not timely received, the trustee will not vote the shares allocable to your account.

Broker Non-Votes

If your shares are held by a broker, the broker will ask you how you want your shares to be voted. If you give the broker instructions, your shares will be voted as you direct. For Proposal 1 or for any other non-routine matter to come before the Annual Meeting, if you do not give instructions, the broker may not vote your shares at all (a broker non-vote). If you do not give instructions for Proposal 2, which is considered a routine matter, the broker may vote your shares in its discretion.

Broker non-votes will be counted for purposes of calculating whether a quorum is present at the Annual Meeting, but will not be counted for purposes of determining the number of votes cast or votes present in person or represented by proxy. Thus, a broker non-vote will not impact our ability to obtain a quorum or otherwise affect the outcome of votes on the above proposals.

Revoking Your Proxy

If you execute a proxy pursuant to this solicitation, you may revoke it at any time prior to its exercise by (i) delivering written notice to our Corporate Secretary at our principal executive offices before the Annual Meeting; (ii) executing and delivering a proxy bearing a later date to our Corporate Secretary at our principal executive offices; or (iii) voting in person at the Annual Meeting.

Votes Required

Approval of each of the proposals submitted to a vote at the Annual Meeting is subject to the affirmative vote requirement shown in the table below.


Proposal	Vote Required	Broker Discretionary Voting Allowed

Proposal 1–Election of Directors	Plurality	No

Proposal 2–Ratification of Auditors	Majority	Yes

“Plurality” will be determined with respect to votes cast on a particular proposal. If you vote ABSTAIN on any proposal requiring a Plurality, your vote will not be counted in determining the number of votes cast. “Majority” will be determined with respect to votes present in person or represented by proxy, and entitled to vote. If you vote ABSTAIN on any proposal requiring a Majority, your vote will have the same effect as a vote AGAINST that proposal.

Tabulation of Votes

Mr. Michael R. Putnam, our Senior Vice President, Corporate and Regulatory Affairs, has been appointed inspector of elections for the Annual Meeting. Mr. Putnam will separately tabulate the affirmative votes, withheld or negative votes (as applicable), abstentions, and broker non-votes with respect to each of the proposals.

Voting Results

We will announce preliminary voting results at the Annual Meeting. We will disclose the final results on a Form 8-K that we file with the Securities and Exchange Commission (SEC) within four business days following the Annual Meeting.

Ownership by Insiders

As of March 15, 2012, our directors and executive officers beneficially owned an aggregate of 592,480 shares of Class A common stock (such number includes shares of common stock that may be issued upon exercise of outstanding options that are currently exercisable or that may be exercised prior to May 14, 2012) and 13,192,845 shares of Class B common stock, which together constitute approximately 37.4% of our outstanding common stock and 85.2% of the voting control of common stock entitled to vote at the Annual Meeting.

Solicitation

The Board is making this solicitation of proxies on our behalf. In addition to the solicitation of proxies by use of the mail, our officers and employees may solicit the return of proxies by personal interview,

telephone, email or facsimile. We will not pay additional compensation to our officers and employees for their solicitation efforts, but we will reimburse them for any out-of-pocket expenses they incur in their solicitation efforts.

We will request that brokerage houses and other custodians, nominees, and fiduciaries forward our solicitation materials to beneficial owners of our common stock that is registered in their names. We will bear all costs associated with preparing, assembling, printing, and mailing this proxy statement and the accompanying materials, the cost of forwarding our solicitation materials to the beneficial owners of our common stock, and all other costs of solicitation.

CORPORATE GOVERNANCE

Corporate Governance Guidelines

The Board has established and adopted guidelines that it follows in matters of corporate governance (Corporate Governance Guidelines). These Corporate Governance Guidelines assist the Board in the exercise of its responsibilities and provide a framework for the efficient operation of our Company, consistent with the best interests of our stockholders and applicable legal and regulatory requirements. The Nominating and Corporate Governance Committee reviews and reassesses the adequacy of the Corporate Governance Guidelines on an annual basis. We have posted a current copy of our Corporate Governance Guidelines, which was last amended in January 2011, on the Corporate Governance page in the Investors Relations section of our website at www.mantech.com (our Website).

Director Independence

The Board is comprised of a majority of directors who are independent from management. Each of our Audit Committee, Compensation Committee, and Nominating and Corporate Governance Committee is comprised entirely of independent directors.

The Board has conducted an evaluation of director independence, based on the independence standards applicable to Nasdaq-listed companies and applicable SEC rules and regulations. In the course of the Board’s evaluation of the independence of each non-management director, the Board considered any transactions, relationships, and arrangements between each such director (or any member of his or her immediate family) and the Company, its subsidiaries, and its affiliates. The purpose of this evaluation was to determine whether any relationships or transactions exist that could be inconsistent with a determination by the Board that the director has no relationship that would interfere with his or her exercise of independent judgment in carrying out the responsibilities of a director.

As a result of this evaluation, the Board has affirmatively determined that the following directors nominated for election at the Annual Meeting are independent of the Company and its management under the above referenced standards and regulations:


Ø Mary K. Bush		Ø Richard J. Kerr
Ø Barry G. Campbell		Ø Kenneth A. Minihan
Ø Walter R. Fatzinger, Jr.		Ø Stephen W. Porter
Ø David E. Jeremiah

The Board determined that George J. Pedersen, our Chairman of the Board and Chief Executive Officer, is not independent because he is employed by the Company.

The Board determined that Richard L. Armitage is not independent because his brother-in-law is a partner with the Company’s independent auditors, Deloitte & Touche LLP.

Board Leadership Structure

The Board believes that no single leadership model is right for all companies at all times. Depending on the circumstances, different leadership models might be appropriate. Our Corporate Governance Guidelines do not require the role of Chief Executive Officer and Chairman of the Board to be separate or combined. The Board’s policy as to whether the role of the Chief Executive Officer and Chairman

of the Board should be separate or combined is to adopt the practice that best serves the Company at any point in time. The Board currently combines the role of Chairman of the Board with the role of Chief Executive Officer, and has coupled this with a Presiding Independent Director to further strengthen our governance structure. The Board believes this structure provides an effective and efficient leadership model for the Company at this time. Combining the Chairman and CEO roles fosters clear accountability, effective decision-making, and alignment on corporate strategy.

Because we have combined the Chairman and CEO roles, pursuant to our Corporate Governance Guidelines, our independent directors have designated Mr. Campbell to serve as the Presiding Independent Director. Mr. Campbell’s duties as Presiding Independent Director include:

Coordinating the activities of the independent directors (or non-management directors, in certain circumstances);

Calling for meetings or sessions of the independent directors (or non-management directors, in certain circumstances) and coordinating the agenda for such sessions;

Facilitating communications and functioning as principal liaison on Board-wide issues between the independent directors and the Chairman of the Board; and

When necessary, recommending the retention of outside advisors and consultants who report directly to the Board.

Board and Committee Executive Sessions and Independent Directors Meetings

The independent directors (or non-management directors, in certain circumstances) of the Board regularly meet in executive session without the presence of management following the adjournment of Board meetings. The Board holds no fewer than two independent directors meetings annually. The major standing committees of the Board (including the Audit, Compensation, and Nominating and Corporate Governance Committees) also regularly meet in executive session. As Presiding Independent Director, Mr. Campbell presides over the Board’s executive sessions and meetings of our independent directors (or non-management directors, in certain circumstances), and the committee chairmen preside over executive sessions of their respective committees.

Board’s Role in Risk Oversight

The Board oversees the management of risks inherent in the operation of the Company’s business. The Board oversees the management of risk principally through the Audit Committee. Among other activities, the Audit Committee oversees the Company’s enterprise risk management program. The Board has delegated the responsibility for oversight of certain of the Company’s business activities, particularly those designated as classified by the U.S. government or that otherwise present a potential significant risk to the Company, to the Special Programs Oversight Committee. Additionally, the Board has delegated the responsibility for overseeing the assessment of risks associated with the Company’s compensation policies and programs to the Compensation Committee. Each of these committees receives and discusses reports regularly with members of management who are responsible for applicable day-to-day risk management functions of the Company. The Board’s role in risk oversight has not had any effect on the Board’s leadership structure.

Board and Committee Self-Evaluations

Each of the Board and the Audit, Compensation, and Nominating and Corporate Governance Committees conducts an annual self-evaluation. These evaluations are designed to foster candid

discussion regarding the adequacy and effectiveness of the Board and its principal committees, including an assessment of the performance of individual Board and committee members. The Nominating and Corporate Governance Committee is charged with responsibility for overseeing the evaluation process, and reviews the results of such self-evaluations (as reported by the Chairman of the Board and committee chairmen, as applicable) in making recommendations regarding the nomination of incumbent directors for re-election to the Board and the committee composition for each Board term.

Director Nominations

The Nominating and Corporate Governance Committee, which is comprised entirely of independent directors, is responsible for reviewing the qualifications of potential director nominees, and then recommending director candidates for nomination by the Board. Our Nominating and Corporate Governance Committee operates under a written charter that is available on the Corporate Governance page of our Website.

The Nominating and Corporate Governance Committee generally identifies and attracts candidates through its own efforts, and it believes that this method has been effective. However, if in the future the Board determines that it is in the Company’s best interest to use the services of a consultant or a search firm to assist with the identification and selection process, it will do so.

We do not have a formal policy regarding the consideration of diversity in identifying potential director nominees. However, the Nominating and Corporate Governance Committee considers diversity in its broadest sense when evaluating candidates, and evaluates its consideration of diversity as part of the annual self-evaluation process. Our Corporate Governance Guidelines direct that the evaluation of nominees should include (but not be limited to) an assessment of whether a nominee would provide the Board with a diversity of viewpoints, backgrounds, experiences, and other demographics.

The Nominating and Corporate Governance Committee has a policy regarding the consideration of director candidates recommended by our stockholders (Nominations Policy). The Nominations Policy describes the circumstances pursuant to which the Nominating and Corporate Governance Committee will consider Board candidates recommended by our stockholders. The Nominations Policy also describes the procedures to be followed by such stockholders in submitting their recommendations. We have made the Nominations Policy available on the Corporate Governance page of our Website.

Generally, the Nominating and Corporate Governance Committee will consider candidates recommended by stockholders who beneficially own at least 1% of our outstanding stock at the time of recommendation (Qualifying Stockholder). Qualifying Stockholders wishing to recommend candidates to the Nominating and Corporate Governance Committee may do so by submitting a completed Stockholder Recommendation of Candidate for Director Form (Recommendation Form), which is embedded in the Nominations Policy posted on our Website.

Qualifying Stockholders wishing to recommend a nominee for election as director at the next annual meeting of stockholders must submit their completed Recommendation Form at least 120 days in advance of the one-year anniversary of the date of the mailing of this proxy statement. The Nominating and Corporate Governance Committee will only evaluate a candidate if he or she has indicated a willingness to serve as a director and cooperate with the evaluation process.

Code of Ethics

This year, we revised our Standards of Ethics and Business Conduct, which sets forth the policies comprising our code of conduct. The policies in our Standards of Ethics and Business Conduct satisfy the SEC’s requirements for a “code of ethics” applicable to our principal executive officer, principal financial officer, principal accounting officer, controller, and persons performing similar functions, as well as Nasdaq’s requirements for a code of conduct applicable to all directors, officers, and employees. Among other principles, our Standards of Ethics and Business Conduct includes guidelines relating to the ethical handling of actual or potential conflicts of interest, compliance with laws, accurate financial reporting, and procedures for promoting compliance with (and reporting violations of) such standards. A copy of our Standards of Ethics and Business Conduct is available on the Corporate Governance page of our Website. We are required to disclose any amendment to, or waiver from, a provision of our code of ethics applicable to our principal executive officer, principal financial officer, principal accounting officer, controller or persons performing similar functions. We intend to use our Website as a method of disseminating this disclosure, as permitted by applicable SEC rules.

Communication with Directors

We believe that it is important for our stockholders to be able to communicate their concerns to our Board. Stockholders may correspond with any director, committee, or the Board of Directors generally, by writing to the following address: ManTech International Corporation Board of Directors, 12015 Lee Jackson Highway, Fairfax, VA 22033-3300, Attention: Corporate Secretary. Please specify to whom your correspondence should be directed. Our Corporate Secretary has been instructed to promptly forward all correspondences to the relevant director, committee, or the full Board of Directors, as indicated in your correspondence.

Director Attendance at Annual Meeting of Stockholders

We invite all of our directors to attend our annual meeting of stockholders, and we strongly encourage all of them to do so. In furtherance of this policy, we have scheduled one of our regularly scheduled Board meetings on the same day as the Annual Meeting. In 2011, all of our directors attended our annual meeting of stockholders.

Availability of Corporate Governance Documents

We have made available on the Corporate Governance page in the Investor Relations section of our Website a number of important documents related to our governance practices, including:

Corporate Governance Guidelines;

Charters of all six of our standing Board Committees;

Certificate of Incorporation and Bylaws;

Code of Ethics (Standards of Ethics and Business Conduct);

Related Party Transactions Policy;

Stock Option Grant Policy; and

Formal policy regarding the consideration of director candidates recommended by stockholders.

We will also make these materials available in print format to any requesting stockholder.

BOARD OF DIRECTORS

AND COMMITTEES OF THE BOARD OF DIRECTORS

Our Board is currently comprised of nine members, each of whom serves for a one-year term that expires at the Annual Meeting. Additional information about each of our directors can be found below under Proposal 1 – Election of Directors. Set forth below are details regarding each of the Board’s standing committees, director attendance at board and committee meetings, and the compensation of our non-employee directors.

Committees of the Board of Directors

The Board currently has six standing committees: Audit Committee, Compensation Committee, Nominating and Corporate Governance Committee, Retirement Plan Committee, Special Programs Oversight Committee, and Executive Committee.

The Board may establish other committees from time to time. A more detailed discussion of each committee’s composition, purpose, objectives, authority, and responsibilities can be found in its charter, which we make available on the Corporate Governance page of our Website.

LOGO

Audit Committee

The primary functions of the Audit Committee are to oversee (i) the integrity of our financial statements, (ii) our accounting and financial reporting processes, and (iii) audits of our financial statements. The Audit Committee was established in accordance with applicable provisions of the Securities Exchange Act of 1934, as amended (Exchange Act). Our Audit Committee operates under a written charter that is available on the Corporate Governance page of our Website. The Audit Committee reviews and reassesses the adequacy of its charter on an annual basis. The charter was most recently revised and amended in March 2010.

The Board annually reviews the qualifications of our Audit Committee members in light of the Nasdaq listing standards’ definition of independence for audit committee members and applicable SEC rules and regulations. The Board has determined that each member of our Audit Committee is independent, as director independence is specifically defined with respect to audit committee members under the Nasdaq listing standards and applicable SEC rules and regulations.

The Board has also determined that the Company has at least one audit committee financial expert serving on the Audit Committee. The Board has identified each of Messrs. Campbell and Fatzinger, and Ms. Bush as a member of the Audit Committee who (i) qualifies as an “audit committee financial expert” under applicable SEC rules and regulations governing the composition of the Audit Committee, and (ii) satisfies the financial sophistication requirement of the Nasdaq listing standards. All of our Audit Committee members have a working familiarity with basic finance and accounting practices.

During 2011, the Audit Committee held five meetings. The Audit Committee is currently comprised of four directors: Messrs. Campbell, Fatzinger, and Kerr, and Ms. Bush. Mr. Campbell serves as Chairman of the Audit Committee.

Compensation Committee

The primary functions of the Compensation Committee are to (i) oversee the determination, implementation, and administration of the remuneration (including salary, incentive compensation payments, bonuses, equity compensation, and perquisites) of all directors and executive officers of the Company, (ii) review and approve all equity compensation to be paid to other Company employees, and (iii) administer the Company’s stock-based compensation plans. For 2011, the Compensation Committee retained Ernst & Young LLP (E&Y) as the Compensation Committee’s independent compensation consultant to assist with its executive compensation-related responsibilities. The services provided by E&Y in its capacity as the Compensation Committee’s independent compensation consultant included supporting the design of our executive compensation program, providing market consensus data for each of our executive officers, and assisting the Compensation Committee in evaluating the compensation of our non-employee directors.

From time to time, with the consent of the Compensation Committee, the Company’s management has retained personnel at E&Y to perform services that are not related to work performed as the Compensation Committee’s independent compensation consultant (Additional Services), such as conducting financial due diligence in connection with certain merger and acquisition transactions. E&Y receives a fee for the Additional Services. Other than its work for the Compensation Committee, E&Y does not provide any executive, director or other compensation consulting services to the Company, and is not the Company’s auditor. During 2011, the Company’s management engaged E&Y to perform due diligence support on acquisitions. The Compensation Committee has approved the Company’s future use of E&Y for these and other projects, including consulting and advisory services with respect to the Company’s internal systems and, as directed by the chairman of the Compensation Committee, consulting and advisory services related to compensation of the Company’s non-executive officers.

During 2011, the Company paid E&Y the following fees for its services:


Ø Compensation Consulting Services			$42,635
Ø Additional Services			$354,500

Based on its ongoing review of these relationships, as well as policies and procedures implemented by the Compensation Committee and E&Y, and other factors that the Compensation Committee determines to be relevant, the Compensation Committee has concluded that the compensation consulting advice it receives from E&Y is objective and not influenced by E&Y’s other relationships with the Company.

All members of the Compensation Committee are independent directors, within the meaning of applicable Nasdaq listing standards and SEC rules and regulations. All committee members also qualify as “non-employee directors” under Section 16 of the Exchange Act, and as “outside directors” under Section 162(m) of the Internal Revenue Code. During 2011, the Compensation Committee held six meetings. At the direction of the Compensation Committee, certain members of management attend each meeting. The Compensation Committee also meets regularly in executive session without management present. The Compensation Committee is currently comprised of three directors: Messrs. Fatzinger, Campbell, and Jeremiah. Mr. Fatzinger serves as chairman of the Compensation Committee.

The Company’s processes and procedures for the consideration and determination of director and executive compensation (including the roles of the Compensation Committee, management, and the Compensation Committee’s independent compensation consultant) are discussed below in the sections Compensation of Non-Employee Directors and Compensation Discussion and Analysis, respectively.

Nominating and Corporate Governance Committee

The two primary functions of the Nominating and Corporate Governance Committee are (i) to identify individuals qualified to become members of the Board, and recommend persons for the Board to select as nominees for election to the Board, and (ii) to oversee the Company’s corporate governance policies and procedures, and periodically review the Company’s Corporate Governance Guidelines. All members of the Nominating and Corporate Governance Committee are independent directors, within the meaning of applicable Nasdaq listing standards and SEC rules and regulations. During 2011, the Nominating and Corporate Governance Committee held two meetings. The Nominating and Corporate Governance Committee is currently comprised of four directors: Messrs. Porter, Campbell, Kerr, and Minihan. Mr. Porter serves as chairman of the Nominating and Corporate Governance Committee.

Retirement Plan Committee

The primary function of the Retirement Plan Committee is to oversee the administration of the Company’s tax-qualified and non-qualified retirement plans. In 2011, the Retirement Plan Committee held four meetings. The Retirement Plan Committee is currently comprised of four directors: Messrs. Fatzinger, Armitage, and Campbell, and Ms. Bush. Mr. Fatzinger serves as chairman of the Retirement Plan Committee.

Special Programs Oversight Committee

The primary function of the Special Programs Oversight Committee is to provide oversight of certain of the Company’s business activities involving programs designated as classified by the United States government, and related matters. The Special Programs Oversight Committee may also review programs that, in its judgment, present a potential significant risk to the Company. In 2011, the Special Programs Oversight Committee held four meetings. The Special Programs Oversight Committee is currently comprised of five directors: Messrs. Kerr, Armitage, Jeremiah, Minihan, and Pedersen. Mr. Kerr serves as chairman of the Special Programs Oversight Committee.

Executive Committee

The primary function of the Executive Committee is to assist the Board in fulfilling its oversight responsibilities. The Executive Committee is authorized to exercise the powers of the Board in managing the affairs of the Company during intervals between Board meetings, when Board action is necessary or desirable but convening a special Board meeting is not warranted or practical. In 2011, the Executive Committee did not hold any meetings. Currently, the Executive Committee is comprised of four directors: Messrs. Pedersen, Armitage, Fatzinger, and Porter. Mr. Pedersen serves as chairman of the Executive Committee.

Attendance at Board and Committee Meetings

In addition to the committee meetings set forth above, our Board met eight times in 2011. During 2011, each of our incumbent directors attended or participated in at least 75% of the aggregate of (i) the total number of meetings of the Board, and (ii) the total number of meetings held by all committees of the Board on which such director served.

Setting Compensation of Non-Employee Directors

Our Compensation Committee sets compensation for the Company’s non-employee directors. The Compensation Committee generally reviews non-employee director compensation on an annual basis. In conducting this review, the Compensation Committee receives input on market trends for non-employee director compensation from its independent compensation consultant, including with respect to the Company’s compensation peer group (as set forth in the Compensation Discussion & Analysis section of this proxy statement); however, the Committee does not target non-employee director compensation at any particular percentile or percentile range of the market data. A substantial portion of the non-employee directors’ compensation is payable in the form of stock-based compensation, in order to align the interests of the directors with those of the Company’s shareholders.

We do not compensate Mr. Pedersen for his service on the Board or any committee of the Board. In certain circumstances, members of the Board may receive reimbursement for certain expenses incurred in connection with attending Board or committee meetings. For the current Board term (which began in May 2011), the Compensation Committee decided not to make any changes to non-employee director cash compensation levels from those approved for the prior Board term. Consistent with 2010, the Compensation Committee decided that the 2011 annual equity grant to non-employee directors should be made in the form of restricted stock. This decision was based on a combination of factors, including the current equity holdings of each director and market trends for boards in our industry. The compensation paid in 2011 to the non-employee directors for their services are reflected in the tables that follow.

NON-EMPLOYEE DIRECTOR COMPENSATION TABLE

The tables and footnotes below reflect the compensation and other fees paid in 2011 to our non-employee directors for their services.


Name (a)	Fees Paid in Cash¹ ($) (b)		Stock Awards² ($) (c)		All Other Compensation³ ($) (d)		Total ($) (d)
Richard L. Armitage		77,500		133,740		2,520		213,760
Mary K. Bush		76,500		133,740		2,520		212,760
Barry G. Campbell		125,500		133,740		2,520		261,760
Walter R. Fatzinger, Jr.		118,000		133,740		2,520		254,260
David E. Jeremiah		79,000		133,740		2,520		215,260
Richard J. Kerr		90,500		133,740		2,520		226,760
Kenneth A. Minihan		74,500		133,740		2,520		210,760
Stephen W. Porter		87,000		133,740		2,520		223,260

¹	The following table presents the compensation we currently pay to our non-employee directors for their service on our Board and our various standing committees of the Board:


	Annual Retainer (Director/Member)		Additional Annual Retainer (Chairperson)		Meeting Fee
Board of Directors	$	50,000		N/A	$1,500 for each meeting that is attended
Audit Committee	$	12,500	$	20,000	$1,500 for each meeting in excess of 4 per Board term
Compensation Committee	$	7,500	$	10,000	$1,500 for each meeting in excess of 4 per Board term
Nominating and Corporate Governance Committee	$	7,500	$	7,500	$1,500 for each meeting in excess of 4 per Board term
Retirement Plan Committee	$	5,000	$	5,000	$1,500 for each meeting in excess of 4 per Board term
Special Programs Oversight Committee	$	5,000	$	5,000	$1,500 for each meeting in excess of 4 per Board term
Executive Committee	$	10,000		N/A	$1,500 for each meeting in excess of 4 per Board term
Presiding Independent Director	$	5,000		N/A	N/A

The amounts in this column reflect the aggregate fair market value of the restricted stock award granted on May 12, 2011, as computed in accordance with ASC Topic 718, Compensation – Stock Compensation. In 2011, each non-employee director received a grant of restricted stock for 3,000 shares of Class A Common Stock, with a grant price of $44.58 per share (closing price of our common stock on the Nasdaq stock market on the date of grant, May 12, 2011). Each non-employee director had unvested restricted stock awards in the amount of 3,000 shares outstanding as of December 31, 2011. The non-employee directors were not granted any option awards during 2011. The non-employee directors had option awards outstanding as of December 31, 2011 as follows: Mr. Armitage (15,000), Ms. Bush (15,000), Mr. Campbell (15,000), Mr. Fatzinger (37,500), Mr. Jeremiah (32,500), Mr. Kerr (37,500), Mr. Minihan (22,500), and Mr. Porter (37,500).

³	The amounts in this column reflect cash dividends credited but not yet paid on unvested shares of restricted stock.

PROPOSAL 1

ELECTION OF DIRECTORS

General Information

The Board has nominated each of the current directors to serve as a director until the 2013 Annual Meeting of Stockholders. Each nominee is a current member of the Board, has agreed to stand for election and serve if elected, and has consented to be named in this proxy statement.

Substitute Nominees

If any nominee should become unavailable for election or is unable to be a candidate when the election takes place (or otherwise declines to serve), the persons named as proxies may use the discretionary authority provided to them in the proxy to vote for a substitute nominee designated by the Board. At this time, we do not anticipate that any nominee will be unable to be a candidate for election or will otherwise decline to serve.

Vacancies

Under our Amended and Restated Bylaws, the Board has the authority to fill any vacancies that arise, including vacancies created by an increase in the number of directors, or vacancies created by the resignation of a director. Any nominee so elected and appointed by the Board would hold office for the remainder of the term of office of all directors, which term expires annually at our annual meeting of stockholders.

Information Regarding the Nominees for Election as Directors

The name and age (as of the Mailing Date) of each nominee for election as director, as well as certain additional information concerning each nominee’s principal occupation, other affiliations, and business experience during the last five years, are set forth below.

The Board has concluded that each of the incumbent directors should be nominated for re-election based on the specific experience, qualifications, attributes, and skills identified in the biographical information below, in light of the Company’s business and structure.

Nominees for Election as Director


Name	Age	Director Since

George J. Pedersen	76	1968

Mr. Pedersen is a co-founder, Chairman of the Board of Directors and Chief Executive Officer of the Company. Mr. Pedersen has served as a Director of ManTech since 1968, was appointed Chairman of the Board of Directors in 1979, and was named Chief Executive Officer in 1995. Mr. Pedersen was also President of the Company from 1995 until 2004. Mr. Pedersen has previously served on the board of directors of GSE Systems, Inc. (NYSE Amex: GVP), which provides simulation and training solutions for the electric power, oil and gas, and chemical process industries. Mr. Pedersen is also on the board of directors of industry associations, including the National Defense Industrial Association (NDIA).

Mr. Pedersen’s unparalleled knowledge of the Company and its operations, and his experience in providing innovative technologies and solutions for mission-critical national security programs to U.S. government customers for almost half a century, uniquely positions him to serve as the Company’s Chairman of the Board of Directors and Chief Executive Officer. In addition to his operational experience, Mr. Pedersen has an in-depth knowledge and understanding of the U.S. government’s mission requirements and related funding priorities.



Richard L. Armitage	66	2005

Mr. Armitage has served as a Director of ManTech since 2005. From 1995 to 2001, Mr. Armitage served on our Advisory Board. Since 2005, Mr. Armitage has served as President of Armitage International, L.C., which provides multinational clients with critical support in the areas of international business development, strategic planning, and problem-solving. From 2001 through 2005, he served as the Deputy Secretary of State, and prior to that assignment, he was President of Armitage Associates, L.C., a world-wide business and public policy firm. Beginning in the late 1980’s, Mr. Armitage held a variety of high-ranking diplomatic positions, including as Presidential Special Negotiator for the Philippines Military Bases Agreement; as Special Mediator for Water in the Middle East; as a Special Emissary to Jordan’s King Hussein during the 1991 Gulf War; and as an Ambassador, directing U.S. assistance to the new independent states of the former Soviet Union. Mr. Armitage is also a former Assistant Secretary of Defense for International Security Affairs, and a former Assistant Secretary of Defense for East Asia and Pacific Affairs. Mr. Armitage has received numerous U.S. military decorations, has been awarded the Department of Defense Medal for Distinguished Public Service four times, and has received the Presidential Citizens Medal and the Department of State Distinguished Honor Award. In 2005, he was awarded a KBE and became a Knight Commander of the Order of St. Michael and St. George. Mr. Armitage was also appointed as an honorary companion to the Order of Australia (Australian Knighthood) and an honorary companion of the New Zealand Order of Merit. Mr. Armitage currently serves on the board of directors of ConocoPhillips (NYSE: COP), which is one of the largest integrated energy companies in the United States.

Mr. Armitage brings to the Board significant leadership experience and industry expertise. Mr. Armitage has worked in the highest levels of the U.S. government, providing him with critical insight into the needs and operations of U.S. government intelligence, military, and civilian agencies, and other matters relating to foreign affairs. His many years of combined service on our Board and our Advisory Board, as well as his service on the board of directors of ConocoPhillips, give him a significant understanding of the role of the Board and knowledge of the Company and its operations.


Name	Age	Director Since

Mary K. Bush	63	2006

Ms. Bush has served as a Director of ManTech since 2006. In 1991, Ms. Bush founded Bush International, a global consulting firm which advises U.S. companies and foreign governments on international financial markets and banking, and global business strategy. In 2007, she was appointed by the Secretary of the Treasury to the U.S. Treasury Advisory Committee on the Auditing Profession. From 1989 to 1991, Ms. Bush served as Managing Director and Head of the Federal Housing Finance Board, the oversight body for the nation’s 12 Federal Home Loan Banks. Prior to 1989, Ms. Bush was the Vice President and Head of International Finance at the Federal National Mortgage Associate (Fannie Mae). From 1982 to 1984, Ms. Bush served as U.S. Alternate Executive Director of the International Monetary Fund (IMF), a position appointed by the President of the United States and confirmed by the Senate. In that capacity, she worked with the U.S. Treasury Department to formulate policy on IMF lending and global economic matters. Ms. Bush serves on the board of directors of The Pioneer Family of Mutual Funds, Discover Financial Services (NYSE: DFS), and Marriott International, Inc. (NYSE: MAR). Ms. Bush also previously served on the boards of directors of United Airlines (NYSE: UAL), Brady Corporation (NYSE: BRC), Briggs & Stratton Corporation (NYSE: BGG), and MGIC Investment Corporation (NYSE: MTG).

As an experienced financial and operational leader of numerous high profile institutions in a variety of industries, Ms. Bush brings a broad understanding of the operations and business and economic challenges of public companies. Ms. Bush has chaired or served on all significant standing committees of public company boards during her career. Ms. Bush has deep knowledge of financial, investment, and governance matters, and received her MBA in finance from the University of Chicago. Her background and experience, including her experience with public policy matters and providing strategic advisory services in political and international arenas, coupled with her service and leadership in government, affords Ms. Bush with a valuable perspective for service on our Board.



Barry G. Campbell	70	2002

Mr. Campbell has served as a Director of ManTech since 2002. From 1999 to 2001, Mr. Campbell served as a director, President and Chief Executive Officer of Allied Aerospace Industries, Inc., a Virginia-based aerospace and defense engineering firm. From 1993 to 1997, Mr. Campbell served as President and Chief Executive Officer of Vitro Corporation, the largest subsidiary of Tracor, Inc. In 1997 he served as Chairman and Chief Executive Officer of Tracor’s subsidiary, Tracor Systems Technologies, Inc. until the sale of Tracor, Inc. to GEC Marconi, Plc in 1998.

As a former senior executive of public companies and companies in our industry, Mr. Campbell brings management experience, leadership capabilities, financial knowledge, and business acumen to our Board. Mr. Campbell has a deep understanding of the Company and its operations, having served on our Board for nearly a decade and chaired our Audit Committee since 2004. Mr. Campbell’s knowledge of our Company, and his financial and operational experience leading comparable companies in our industry through challenges and opportunities that we regularly face, make him a valued and important contributor to our Board.


Name	Age	Director Since

Walter R. Fatzinger, Jr.	69	2002

Mr. Fatzinger has served as a Director of ManTech since 2002. Mr. Fatzinger joined ASB Capital Management, Inc., an asset management firm, in February 1999, and currently serves as director of the firm. Mr. Fatzinger served as Executive Vice President of Chevy Chase Bank, F.S.B., the parent of ASB Capital Management, Inc., from 1999 to 2002. Mr. Fatzinger currently serves as a director of both Chevy Chase Trust Company and ASB Capital Management, where he is Chairman of the Audit Committee and the Real Estate Investment Activities Committee, and is Chairman Emeritus of the University of Maryland Foundation. Mr. Fatzinger also previously served on the board of directors of Optelecom, Inc., which was a Nasdaq listed company prior to its sale in 2011 (NASDAQ: OPTC).

As a former leader of high-profile companies in the financial industry, Mr. Fatzinger brings to the Board a broad range of capabilities relating to the management, operation, and financial performance of companies. He has led and overseen institutions throughout the many stages of a company’s lifecycle. Mr. Fatzinger also has a deep understanding of the Company and its operations, having served on our Board for more than ten years and chaired our Compensation Committee since 2004. This knowledge and his financial and operational experience make him a valued and important contributor to our Board.



David E. Jeremiah	78	2004

Admiral Jeremiah (Retired) has served as a Director of ManTech since 2004. From 1994 to 2004, Admiral Jeremiah served on our Advisory Board. Admiral Jeremiah served as President, CEO and later Chairman of Technology Strategies & Alliances Corporation, a strategic advisory and investment banking firm engaged primarily in the aerospace, defense, telecommunications, and electronics industries. Admiral Jeremiah serves on the board of directors for a number of private and not for profit boards. He was also a member of many national security commissions, panels, and boards. During his military career, Admiral Jeremiah earned a reputation as an authority on strategic planning, financial management, and the policy implications of advanced technology. From 1990 to 1994, Admiral Jeremiah served as Vice Chairman of the Joint Chiefs of Staff for Generals Powell and Shalikashvili. He has previously served on the boards of directors of Alliant Techsystems (NYSE: ATK) and Todd Pacific Shipyards, which was a NYSE listed company prior to its sale in 2011.

Admiral Jeremiah brings to the Board broad and deep leadership experience and industry knowledge. Admiral Jeremiah has worked in the highest levels of the U.S. government, providing him with critical insight into the needs and operations of various U.S. government intelligence and military agencies. He has also worked extensively in the private sector within the Company’s industry. His many years of combined service on our Board and our Advisory Board, as well as his service on the board of directors of numerous other private and public companies, gives him a significant understanding of the role of the Board, and knowledge of the Company and its operations.


Name	Age	Director Since

Richard J. Kerr	76	2002

Mr. Kerr has served as a Director of ManTech since 2002. From 1994 to 2002, Mr. Kerr served as Chairman of our Advisory Board. From 1996 to 2001, Mr. Kerr served as President of the Security Affairs Support Association, an organization composed of government and industry members that is focused on national security policy. Prior to that, Mr. Kerr worked at the Central Intelligence Agency for 32 years, including as Deputy Director for Central Intelligence. Mr. Kerr headed a small team that assessed intelligence produced prior to the Iraq war, at the request of the Secretary of Defense and Director of Central Intelligence. He currently serves on a commission responsible for monitoring compliance with the Belfast Treaty (Good Friday Agreement). Mr. Kerr currently serves on the board of directors of BAE Systems, Inc., a subsidiary of BAE Systems plc. He also previously served on the boards of directors of MITRE Corporation and LexisNexis.

Mr. Kerr brings to the Board significant leadership experience and industry knowledge, particularly within the Intelligence Community. His continued involvement in the formation of the nation’s security policies has ensured his continued expertise in this area. His many years of combined service on our Board and our Advisory Board, as well as his service on the board of directors of other high-profile companies in our industry, gives him a significant understanding of the role of the Board, and knowledge of the Company, its operations, and the markets it serves. His familiarity with and knowledge of issues relating to the operation of certain Company business activities involving programs designated as classified by the U.S. government gives him the background to chair our Special Programs Oversight Committee.



Kenneth A. Minihan	68	2006

Lieutenant General Minihan (Retired) has served as a Director of ManTech since 2006. Since 2002, Lt. Gen Minihan has served as Managing Director of the Homeland Security Fund for Paladin Capital Group. From 1999-2002, Lieutenant General Minihan served as President of the Security Affairs Support Association. Lieutenant General Minihan served for over thirty years in the Air Force, serving from 1996 to 1999 as the 14^th Director of the National Security Agency/Central Security Service. From 1995 to 1996 he was a Director of the Defense Intelligence Agency. Lieutenant General Minihan is a Founder of the Intelligence and National Security Alliance in Washington, D.C., and serves on the boards of directors of BAE Systems, Inc., a subsidiary of BAE Systems plc, and Lexis Nexis Special Services Inc. He also is a former member of the board of directors of Verint Systems, Inc. (NASDAQ: VRNT) and MTC Technologies, Inc., which was a Nasdaq listed company prior to its sale.

Lieutenant General Minihan brings to the Board an impressive mix of military, government, business, and investment experience in the Company’s industry. His position as Managing Director of the Homeland Security Fund for Paladin Capital Group also gives Lieutenant General Minihan keen insight into merger and acquisition activity within our industry. Lieutenant General Minihan’s industry knowledge is supplemented by his experience serving on numerous other public and private company boards in the defense and government IT services industry, and as a result he has deep understanding of the role of the Board and the Company, as well as the Company’s addressable markets.


Name	Age	Director Since

Stephen W. Porter	73	1991

Mr. Porter has served as a Director of ManTech since 1991. Mr. Porter is Senior Counsel with the law firm of Arnold & Porter, where he has practiced law since June 1993, focusing on real estate, tax, and corporate law. Mr. Porter became a certified public accountant in 1961. Mr. Porter currently serves on the executive committee of the District of Columbia Chamber of Commerce, for which he is currently serving his second term as Chairman of the Board of the District of Columbia Chamber of Commerce. From 1992 to 1994, he served as a member of the Advisory Board of the Center for Strategic and International Studies, a non-partisan public policy institute. In 2007, President Bush appointed Mr. Porter as a Trustee of the National Council on the Arts.

Mr. Porter is the Company’s longest standing non-employee director, having served on the Board for two decades. Mr. Porter brings to the Board historical knowledge about the Company and its operations. In his role on the Board, he has helped guide the Company through its most transformative stages of growth, including the Company’s initial public offering and its acquisitive activity. Mr. Porter also provides the Board with the benefit of significant legal experience and knowledge regarding a public company’s corporate governance activities, and in this regard adds important diversity of experience to the Board.

Recommendation of the Board of Directors

The Board recommends that you vote “FOR” the election of each of the director nominees listed above. All proxies executed and returned will be voted “FOR” all of the director nominees unless the proxy specifies otherwise.

EXECUTIVE OFFICERS

We have set forth below the names and ages (as of the Mailing Date) of each of our current executive officers (other than our Chairman of the Board and Chief Executive Officer, George Pedersen), and their respective positions with us. Biographical information for each of our executive officers is also presented below. The biographical and other required information for Mr. Pedersen is presented in the Information Regarding the Nominees for Election as Directors section of this proxy statement.

Our executive officers serve at the discretion of the Board of Directors.


Name	Age	Position

Kevin M. Phillips	50	Executive Vice President & Chief Financial Officer

Mr. Phillips is Executive Vice President and Chief Financial Officer of ManTech International Corporation. Prior to being named Chief Financial Officer in 2005, Mr. Phillips served as Corporate Vice President and Chief of Staff for ManTech, in which capacity he played an active role in the integration of acquisitions and other strategic business issues. Mr. Phillips joined ManTech in February 2003. He was formerly the Chief Financial Officer of CTX Corporation, a provider of information technology and software strategies and solutions to the national intelligence community. Mr. Phillips spent seven years as part of CTX Corporation’s executive management team. Prior to that, he held various roles including controllerships at IT service providers to the government.



John J. Fitzgerald	58	Senior Vice President, Finance & Controller

Since April 2004, John Fitzgerald has been the Company’s Senior Vice President of Finance and Controller. In July 2006, he was promoted to Principal Accounting Officer. Previously, he was Vice President and Controller at DynCorp. Prior to that, he was Vice President and Controller at Litton/PRC Inc. a division of Litton Industries Inc. from 1992-1997. He has also held various senior financial positions, including Chief Financial Officer at other companies. He started his career at Ernst & Ernst.



Louis M. Addeo	60	Group President - TSG

Mr. Addeo is President of our Technical Services Group (TSG). Mr. Addeo joined ManTech in March 2009. Prior to joining ManTech, from 2007 until January 2009, Mr. Addeo served as Chief Operating Officer of Serco, North America, a subsidiary of Serco Group, a 40,000 person organization operating in 30 countries. From 2001 to 2006, Mr. Addeo served as the President of AT&T Government Solutions, a $1.5 billion business segment providing a broad array of complex business IT and services solutions to federal, civilian, Department of Defense (DoD), and Intelligence Community customers. Mr. Addeo previously served in a variety of other capacities during his almost 30-year tenure with AT&T.


Name	Age	Position

L. William Varner	60	Group President - MCTS

Mr. Varner was named President of the ManTech Mission, Cyber & Technology Solutions Group (MCTS) in September 2009. From 2004 until September 2009, Mr. Varner was a Vice President, Corporate Officer, and Executive Director of the Intelligence Operations operating unit of Northrop Grumman/TASC, a $400 million organization which specialized in highly technical engineering and operations support to the Intelligence Community. While at TASC, he grew his operating unit substantially, and his team earned Capability Maturity Model Integration Level 5 certification in software development. Prior to his service with the Intelligence Operations Operating Unit, Mr. Varner was a Vice President of the Signal and Information Processing Business Unit for TASC. He joined TASC in 1978 and held positions of increasing responsibility in project, program, and line management before becoming a senior executive.



Terrence M. Ryan	53	Group President - SEAT

Mr. Ryan was named President of the ManTech Systems Engineering & Advanced Technology Group (SEAT) in September 2009. He joined ManTech from Mercury Federal Systems, a company providing ISR system and technology solutions to the federal government, where he served as President and Chairman beginning in March 2007. Prior to March 2007, he served in various senior management roles at SAIC, SRA and Adroit Systems, including as President, CEO and Director of Adroit. He also served as the DoD Director of Intelligence, Surveillance and Reconnaissance.

COMPENSATION COMMITTEE REPORT

The Compensation Committee of ManTech’s Board of Directors has reviewed and discussed with ManTech’s management the Compensation Discussion and Analysis that follows this report. Based on such review and discussions, the Compensation Committee recommended to ManTech’s Board of Directors that the Compensation Discussion and Analysis be included in this proxy statement and incorporated into ManTech’s Form 10-K.

Compensation Committee Members

Walter R. Fatzinger, Jr., Chair

Barry G. Campbell

Adm. David E. Jeremiah, USN Ret.

COMPENSATION DISCUSSION AND ANALYSIS

The following discussion and analysis contains statements regarding individual and Company performance targets and goals. These targets and goals are disclosed in the limited context of our compensation program. These targets and goals are not statements of our expectations or estimates of results or other guidance. Investors should not apply the targets and goals to any other context.

This section describes the compensation for our Chief Executive Officer and Chief Financial Officer in 2011, as well as each of our three most highly compensated executive officers employed at the end of 2011, all of whom we refer to as our named executive officers. Our named executive officers for 2011 are George J. Pedersen, Chairman of the Board and Chief Executive Officer, Kevin M. Phillips, Executive Vice President and Chief Financial Officer, and Louis M. Addeo, L. William Varner, III, and Terrence M. Ryan, our three business group presidents who also serve as the chief operating officers for their respective groups.

Executive Summary

In 2011, ManTech’s named executive officers led the Company through a number of important efforts to strengthen the Company’s overall long-term growth profile and position the Company to deliver significant value to its stockholders in a challenging market for government services providers. These efforts included completing strategic acquisitions, closing a new revolving credit facility (enhancing the Company’s strong capital position and financial flexibility and providing an increased ability to drive growth), and initiating a regular cash dividend program. In addition, our named executive officers directly contributed to the Company’s solid 2011 operating results, as measured by an increase in revenues of 10.2%, net income growth of 6.6%, and operating cash flow of $221 million. For a more detailed description of our fiscal year 2011 financial results, see Management’s Discussion and Analysis of Financial Condition and Results of Operations in our 2011 Annual Report on Form 10-K.

We continually evaluate the individual elements of our executive compensation program in light of market conditions and governance requirements, and we make changes where appropriate for our business. Our core compensation program elements have remained substantially unchanged over the last several years, as we believe our executive compensation structure has continued to contribute to the Company’s outstanding financial performance. For 2011, as in prior years, we utilized performance measures for our annual incentive compensation program that relate to overall Company performance for our Chief Executive Officer and Chief Financial Officer, and a combination of overall Company

performance and applicable business group performance for our business group presidents. Additionally, we streamlined the performance measures in our incentive compensation program in order to focus our named executive officers on profitability while continuing to meet the Company’s growth targets.

Our executive compensation program is based upon a strong foundation of seeking to provide compensation that is based on performance, while at the same time avoiding compensation opportunities that could encourage unacceptable levels of risk. Our focus on performance is exemplified by our compensation philosophy (as described below), as well as by the non-discretionary component of our annual incentive compensation program, which is designed to provide significant incentive payments only under circumstances evidencing truly exemplary and outstanding performance.

Objectives of Our Executive Compensation Program

Our executive compensation program is designed to support our key business objectives of creating value for, and promoting the interests of, our stockholders. In order to align the interests of our executives with those of our stockholders, we believe that our executive compensation program must provide our executive officers with competitive compensation opportunities that are based upon their contributions to the development and financial and operational success of the Company, as well as their personal performances.

Specifically, per our compensation philosophy, we believe that our executive compensation program should:

Reflect the competitive marketplace, so we are able to attract, retain, and motivate talented executives;

Be tied in substantial part to financial performance, so that our executives are held accountable through their compensation for the performance of the Company and (if applicable) the business groups for which they are responsible;

Appropriately balance short- and long-term incentives, with short-term incentive compensation target amounts based on role or level of contribution, and have a meaningful portion of the total target compensation for the senior executive team focused on long-term performance;

Align the interests of management with shareholders through stock-based compensation (primarily grants of stock options); and

Consider qualitative factors beyond the quantitative financial metrics that serve as the basis for the non-discretionary portion of our annual incentive compensation program in the determination of whether discretionary bonus payments to individual executives are appropriate.

Executive Compensation Setting Process

The Compensation Committee has primary responsibility for setting the compensation of our executive officers. In making executive compensation decisions, the Compensation Committee consults with our CEO and other members of our management team, and relies upon the assistance of E&Y, which serves as the Compensation Committee’s independent compensation consultant. For additional information about E&Y, see the Compensation Committee section of this proxy statement.

The Compensation Committee believes that the input of management is an important part of the executive compensation setting process. As a result, the Compensation Committee requested that management provide initial recommendations with respect to the 2011 compensation packages for each named executive officer. These recommendations included types and amounts of compensation for each executive, as well as appropriate goals for each of the 2011 performance metrics, as determined by the Compensation Committee. In setting each executive’s compensation opportunities for 2011, the Compensation Committee considered management’s recommendation in light of, and in addition to, other factors, including the executive’s individual experience, role and responsibilities, performance, and prior compensation levels, as well as retention and other specific management needs of the Company.

In furtherance of our commitment to minimize risk associated with our compensation program, our Compensation Committee also works closely with management during the compensation setting process to identify, monitor, and mitigate any such risks. The Compensation Committee has concurred with management’s conclusion that the Company’s policies and procedures with respect to executive officer compensation are not reasonably likely to have a material adverse effect on the Company. For additional information about our process for evaluating compensation-related risk, see the Compensation Risk Management section of this proxy statement.

In evaluating the reasonableness of its compensation decisions and the Company’s compensation programs generally, the Compensation Committee takes into account the compensation practices of, and the competitive market for executives at, companies with which we compete for talent. To this end, the Compensation Committee asked E&Y to perform an analysis of the Company’s 2011 executive compensation program, including a review of the overall competitiveness of proposed compensation levels to prevailing market standards for executive officers. The market information included in this analysis was based on published compensation surveys for similarly-sized companies within the business software and services industry (as sorted and refined by E&Y on a position-by-position basis), as well as proxy analysis of the Company’s compensation peer group, and was used to generate “market consensus” figures for each of our executive officer’s total cash compensation (base salary and annual incentive) and, where available, total direct compensation (total cash compensation plus long-term incentives). Market consensus figures were presented at both the 50^th and 75^th percentiles of the market data to provide general information on a market competitive range of compensation for each position.

E&Y does not identify to us the individual companies that comprise the published survey data for each executive’s position. The Compensation Committee, in consultation with E&Y and management, determined the compensation peer group used to produce the proxy analysis. The primary basis for selecting the peer group was to identify public companies with which we compete directly for executive talent, customers, market share, capital, and shareholders. For 2011, our compensation peer group was substantially the same as for 2010, after eliminating DynCorp International, Inc. (due to its acquisition by Cerberus Capital Management) and Stanley, Inc. (due to its acquisition by CGI). The 2011 compensation peer group consisted of the following 10 companies:


Ø Computer Sciences Corporation	Ø SAIC, Inc.	Ø SRA International
Ø Harris Corporation	Ø CACI International, Inc.	Ø Unisys Corp
Ø L-3 Communications	Ø ICF International
Ø NCI, Inc.	Ø MAXIMUS, Inc.

The Compensation Committee did not consider the market consensus figures for the purposes of benchmarking or otherwise targeting any component of executive compensation or total executive compensation at a particular percentile of market, and instead used market consensus figures only as a reference point in its determination of the types and amount of compensation for the executive officers, in light of the Compensation Committee’s own evaluation of the circumstances with respect to each executive officer. Factors that may cause the individual executive’s compensation to fall outside of the market consensus figures presented to the Compensation Committee include competitive factors, the Company’s financial and operating performance, the individual executive’s position or performance, the Company’s general view on the appropriate proportion of cash-based compensation for its executives, and other factors that may inform the Committee’s determination of the best way to align our executive officers’ interests with those of our stockholders. For example, Mr. Pedersen’s total direct compensation historically has been below the market competitive range because he does not receive any long-term equity grants from the Company, a significant component of total direct compensation among our compensation peer group.

2011 Named Executive Officer Compensation

Our compensation program utilizes three principal types of compensation: base salary, annual cash incentive payments, and long term incentive compensation. While we do pay some compensation through employee benefits and perquisites, these forms of compensation generally do not represent a significant portion of the total compensation we pay our executives.

Base Salary

We pay our named executive officers base salaries that reflect the requirements of the marketplace. We also take into account the individual executive’s experience, base salary in the prior year, personal performance, internal pay equity considerations, and (if applicable) size and other factors related to the business group for which the executive is responsible. The consideration given to each of these factors differs from individual to individual, as deemed appropriate.

Each of our named executive officers received a salary increase, based on the factors listed above, in April 2011 as part of our regular salary setting process. The final 2011 base salaries for our named executive officers are shown in the following chart:


Executive	2011 Base Salary

Mr. Pedersen		$1,900,000
Mr. Phillips		$700,000
Mr. Addeo		$750,000
Mr. Varner		$645,000
Mr. Ryan		$645,000

Annual Incentive Compensation Program

Our named executive officers have the potential to earn annual cash incentive payments through our annual incentive compensation program. Our annual incentive program has both non-discretionary and discretionary components. The non-discretionary component of each executive’s annual incentive compensation opportunity was established pursuant to, and governed by, the Company’s 2011 Executive Incentive Compensation Plan. On an annual basis, the Committee also considers for each executive whether a discretionary bonus payment is appropriate.

We make our incentive payments annually, when earned, and after our financial results for the year have been finally determined. We have chosen to make annual incentive compensation payments in the form of cash rather than stock, as the stock compensation component of our compensation program is designed to provide a longer-term incentive for our named executive officers.

Non-Discretionary Incentive Compensation Payments

The material elements of the non-discretionary component of our annual incentive program are as follows:

A uniform, systematic, and measurable process for determining the amount of incentive compensation to be paid;

Company and business group performance objectives that support the goals and objectives for the Company as a whole;

Compensation Committee discretion to reduce the amount of the non-discretionary portion of a named executive officer’s annual cash incentive payment that would otherwise be payable upon the executive’s achievement of the pre-established goals.

Structure of 2011 Non-Discretionary Incentive Opportunities

For 2011, we used the following performance measures at both the Company-level and business group-level for the non-discretionary component of our annual incentive program:


Revenue		Revenue is the principal means by which we measure our overall growth, which is an important factor at this point in the life of the Company. Because of profit margin limitations that apply to government contracts, increasing our revenue is the principal method by which we can increase our profits.

EBIT		Earnings before interest and taxes (EBIT) is the principal method by which we measure our profitability and monitor our ability to achieve returns for our stockholders.

Bookings		Bookings refers to the total value of all contracts, including renewals and customer purchases in excess of prior contracted commitments, awarded during the year. Generally, for ID/IQ (Indefinite Delivery/Indefinite Quantity) contracts we only include in our Bookings executed task orders and an estimate of revenues for solutions that we believe we will be asked to provide in the future under the terms of such contracts for which we have an established pattern of revenues. We do not include in our Bookings contracts that we have won but that are being protested. Awards of new contracts and the renewal of existing contracts are an important measure of our ability to increase our revenues.

For 2011, the non-discretionary annual incentives for each of Mr. Pedersen (our Chairman of the Board and CEO) and Mr. Phillips (our Executive Vice President and CFO) were based solely on Company-level performance measures. By using only Company-level performance measures, the incentives for these executives were balanced for all aspects of the Company’s business, and were intended to encourage them to attend to the entire business of the Company and make decisions for the benefit of the entire Company. The percentage achievement of each of the Company-level performance goals is multiplied by a weighting factor, and the resulting products are added to determine an overall Company-level performance score. The Company-level performance measures, associated weighting factors, and goals for 2011 are shown in the table below.

Company-Level Performance Measures


*Performance Measure*	*Weighting*			*Goal* *(dollars in thousands)*
Revenue		40	%		$3,116,039
EBIT		40	%		$238,006
Bookings		20	%		$3,996,251

The non-discretionary annual incentives for Messrs. Addeo, Varner, and Ryan were based on a combination of the Company-level performance goals described above and performance goals for the business group for which each executive was responsible (the TSG business group for Mr. Addeo, the MCTS business group for Mr. Varner, and the SEAT business group for Mr. Ryan). By using both Company-level and business group-level measures, the incentives were intended to encourage these executives to make decisions that benefit both their business groups and the Company as a whole. The overall performance score for the Company-level goals and the overall performance score for the business group-level goals are each multiplied by a weighting factor, and then added together to determine a composite performance score. For 2011, the overall Company-level and business group level performance scores were equally weighted. The business group-level performance measures, associated weighting factors, and goals are shown in the table below.

Business Group-Level Performance Measures


*Performance Measure*	*Weighting*			*Mr. Addeo*		*Mr. Varner*		*Mr. Ryan*
*Performance Measure*	*Weighting*			*Goal (dollars in thousands)*
Revenue		40	%	$	1,925,000	$	656,080	$	534,959
EBIT¹		40	%
Bookings		20	%	$	2,365,000	$	875,219	$	756,032

EBIT goals for the business groups were set in proportion to the Company-level goal for that measure, taking into account the size, customers, contract types, and other attributes of the relevant business group. EBIT goals were designed to be challenging to meet at targeted performance, with the maximum score attainable only under circumstances indicating extraordinary performance.

The performance score for each of our named executive officers is converted by fixed formula to an annual incentive award amount. For 2011, the non-discretionary incentive award opportunity for each of our named executive officers at threshold, target, and maximum performance levels is set forth in the following table.

Non-Discretionary Incentive Award Opportunities


*Executive*	Threshold Performance Score (90% - 93%)		Target Performance Score (100%)		Maximum Performance Score (107% - 110%)

Mr. Pedersen	$	1,240,000	$	2,470,000	$	4,330,000
Mr. Phillips	$	340,000	$	665,000	$	1,160,000
Mr. Addeo	$	360,000	$	713,000	$	1,250,000
Mr. Varner	$	280,000	$	548,000	$	960,000
Mr. Ryan	$	280,000	$	548,000	$	960,000

2011 Non-Discretionary Incentive Compensation Results

Calculation of the overall Company-level performance score for 2011 is shown in the table below.

Company-Level Performance Score


*Performance Measure*	*Weighting*			*% Achievement*			*Score*

Revenue		40	%		92	%		37	%
EBIT		40	%		96	%		38	%
Bookings		20	%		75	%		15	%

*Company-Level Performance Score*								90	%

The non-discretionary annual incentive payments for Messrs. Pedersen and Phillips were based solely on the Company-level performance score. As a result, Mr. Pedersen received a non-discretionary annual incentive payment equal to $1,240,000, and Mr. Phillips received a non-discretionary annual incentive payment equal to $340,000.

Calculation of each of the business group-level performance scores for 2011 is shown in the table below.

Business-Group Level Performance Scores


*Performance Measure*	*Weighting*			*Mr. Addeo*						*Mr. Varner*						*Mr. Ryan*
*Performance Measure*	*Weighting*			*% Achievement*			*Score*			*% Achievement*			*Score*			*% Achievement*			*Score*
Revenue		40	%		97	%		39	%		85	%		34	%		85	%		34	%
EBIT		40	%		100	%		40	%		92	%		37	%		84	%		34	%
Bookings		20	%		64	%		13	%		105	%		21	%		71	%		14	%

*Business Group-Level Performance Score*								92	%					92	%					82	%

Each business-group performance score was multiplied by a weighting factor of 50%, and then added together with the equally weighted Company-level performance score to yield a composite performance score. Based on each of their achievement of a composite performance score of 91%, Mr. Addeo was paid a non-discretionary annual incentive payment equal to $360,000 and Mr. Varner was paid a non-discretionary annual incentive payment equal to $280,000. Because his composite score did not meet or exceed the threshold score, Mr. Ryan did not receive a non-discretionary annual incentive payment for 2011.

The Compensation Committee did not exercise its negative discretion to reduce the amount of the 2011 non-discretionary incentive compensation payment to any of the Company’s named executive officers.

Discretionary Incentive Compensation Payments

As part of our annual incentive compensation program, the Compensation Committee also considers whether a discretionary bonus payment is appropriate for each of our named executive officers. In determining the amount of any discretionary bonus payments, the Compensation Committee may take into account any objective or subjective factors that the Committee deems appropriate, including individual contributions and other qualitative or quantitative factors not captured by the non-discretionary component of our annual incentive compensation program.

For 2011, the Compensation Committee awarded discretionary bonuses to our named executive officers as follows.


*Executive*		*2011 Discretionary Payment*

Mr. Pedersen		$610,000
Mr. Phillips		$160,000
Mr. Addeo		$265,000
Mr. Varner		$130,000
Mr. Ryan		$410,000

The size of the discretionary awards for each of the named executive officers was determined based on a combination of factors and the Compensation Committee’s assessment of the individual officer’s achievements for the year, particularly in light of circumstances and events that were not anticipated at the time the annual incentive compensation program for 2011 was finalized, including sustained budgetary uncertainty, prolonged delays in procurement decisions, and changes to the procurement practices of certain of our customers. The discretionary awards were utilized, as designed, to capture and reward individual performance that the non-discretionary component of our incentive compensation program did not capture.

Corporate Named Executive Officers

Mr. Pedersen (CEO)

was awarded the discretionary payment referenced above based on a number of factors, including his successful actions to identify additional markets and opportunities for the Company to pursue both organic and acquisition-related growth, which enhanced the competitive positioning of the Company, as well as his continuing strategic leadership of the Company.

Mr. Phillips (CFO)

was awarded the discretionary payment referenced above based on several factors, including the Company’s strengthened financial position as a result of entering into a favorable new 5-year $500 million credit facility, strong operating cash flows, G&A cost controls, and maintenance of a solid balance sheet that can support favorable shareholder returns through acquisitions and a reasonable dividend program.

Business Group Presidents

In determining the size of the discretionary awards made to our business group presidents, the Compensation Committee considered the successful execution of their increased responsibilities in connection with their serving as the chief operating officers for their respective groups in 2011. Additionally, the Compensation Committee considered the following:

Mr. Addeo (TSG)

was awarded the discretionary payment referenced above in consideration of his continued effective leadership of the Company’s largest business group, as evidenced by an increase in his group’s prime contract mix, as well as in consideration of his role in certain actions aimed at enhancing the Company’s strategic long-term positioning in the market.

Mr. Varner (MCTS)

was awarded the discretionary payment referenced above in consideration of his group’s expansion of cyber security work within

key customer bases, success in winning significant awards that position the Company for expansion in certain growth markets, and strengthened customer relationships within the intelligence community, as well as his leadership with respect to developing differentiating capabilities for the Company.

Mr. Ryan (SEAT)

was awarded the discretionary payment referenced above in consideration of his activities related to improving his group’s cash management and operating margins, high percentage of recompete awards, and identification of emerging technologies and capabilities for future support of the Company’s customers, as well as his leadership with respect to efforts to identify government appropriation and budget priorities and pursue core and adjacent markets in an increasingly uncertain budget environment.

In light of these factors, the Compensation Committee determined that the size of the discretionary awards to each of the named executive officers was appropriate.

Long-Term Incentives

We provide long-term incentives to our named executive officers primarily through annual equity grants in the form of stock options. The grants are designed to align the interests of our named executive officers with those of our stockholders and provide these officers with a significant incentive to manage the Company from the perspective of an owner with an equity stake in the Company. The Compensation Committee makes all equity grants to our named executive officers.

We generally use stock options as long-term incentives because stock options provide value to our executives only if our stock price increases. Standard features of stock option awards granted to our named executive officers generally include the following:

Vesting in equal annual installments over three years, beginning on first anniversary of grant date

Accelerated vesting on death or disability

Granted on one of four quarterly grant dates each year

Exercise price equal to the closing price of our stock on Nasdaq on the grant date

Expiration of the award five years from the date of grant

Generally, the amount of an annual option grant to a named executive officer is based on the executive’s personal performance and the performance of any business group for which the executive was responsible in the last fiscal year. The amount of the grant may also depend on the executive’s position, responsibilities, and current base salary, as well as on internal pay equity considerations, the need to attract or retain the executive, and whether the executive has been recently promoted or hired. On occasion, the Compensation Committee may also consider the number of options or shares held by the executive with the goal of maintaining an appropriate level of equity incentive for that individual. However, the Compensation Committee does not adhere to any specific guidelines with respect to the level of stock or option holdings of our named executive officers.

The annual equity grants to our named executive officers in March 2011 were as follows: Messrs. Phillips and Addeo received 30,000 stock options each, and Messrs. Varner and Ryan received 25,000

stock options each. In addition to the annual equity grant, in November 2011 each of Messrs. Phillips, Addeo, Varner, and Ryan received a grant of 15,000 stock options in connection with a broad retention effort involving grants of stock options to certain officers and managers of the Company.

Consistent with past practice, because of the level of Mr. Pedersen’s stock ownership as Company founder, the Compensation Committee determined that Mr. Pedersen would not receive any equity grants in 2011.

Employee Benefits and Perquisites

Our named executive officers participate in the same employee benefit programs as other employees. We do not have any supplemental retirement plan paid for by the Company for our named executive officers.

Our executive perquisites generally involve limited expenses and payments for car allowances or the use of Company cars. Mr. Pedersen is entitled to receive certain contributions and other benefits under the terms of his Retention Agreement, as described below. We do not provide any tax gross ups with respect to perquisites provided to our named executive officers.

Agreements with Our Named Executive Officers

CEO Compensation and Retention Agreement

The Compensation Committee determines the compensation of the CEO based on the terms of his retention agreement and the Compensation Committee’s evaluation of the same factors applied to the other named executive officers. For 2011, as has been the case historically, our CEO’s total annual cash compensation was materially greater than the annual cash compensation for our other named executives because of Mr. Pedersen’s responsibilities for the overall strategy of our Company, his active role in the operations of the Company, and in recognition that he has not participated in any equity-based compensation programs due to his substantial stock holdings.

We entered into the retention agreement with our CEO at the time of our initial public offering in 2002 for the purpose of providing stable management following the offering. The retention agreement is for an indefinite term, and provides for an annual base salary of at least $1,000,000, to be reviewed annually by the Company and established for the upcoming year based substantially on the same factors and general compensation policies applicable to the Company’s other named executive officers. The retention agreement provides that Mr. Pedersen is entitled to receive contributions to qualified and non-qualified retirement plans, insurance programs, and perquisites on the same terms they have been provided in previous years, including items such as the lease of an executive type of vehicle for business and personal use, a portion of an employee’s time spent on non-corporate matters on behalf of Mr. Pedersen (including attending to chauffeur/valet services and other assistance as required from time to time), and club memberships. With Mr. Pedersen’s consent, Mr. Pedersen does not participate in either our ESOP or 401(k) Plan, and the Company no longer maintains a non-qualified retirement plan on his behalf.

If we terminate Mr. Pedersen’s employment without cause, we are required to pay Mr. Pedersen a lump sum amount equal to one year’s base salary at the rate in effect immediately prior to his termination of employment ($1,900,000 for 2011). Mr. Pedersen agrees not to compete with us and not to solicit our customers or employees during the term of his employment and through the severance period.

Change in Control Agreements

During 2011, the Company had change in control agreements in place with certain of its executive officers. Upon notice provided under the terms of the agreements, all such change in control agreements expired in accordance with their terms prior to the end of 2011 without any payments to the executives thereunder.

Retention Agreements with Our Business Group Presidents

In 2010, we entered into retention agreements with Messrs. Addeo, Varner and Ryan. Under these agreements, each executive was entitled to receive a lump-sum cash payment of $250,000 if he remained employed with ManTech through December 31, 2011. All obligations under such agreements were satisfied as of December 31, 2011, and the agreements terminated on such date in accordance with their terms.

Other Compensation Matters

Say-on-Pay

At the 2011 annual meeting of stockholders, more than 99% of the advisory votes cast by stockholders on the compensation of our named executive officers (Say-on-Pay) were in favor of our 2010 named executive officer compensation, as described in our 2011 proxy statement. Our stockholders also voted in favor of a frequency of every three years for future Say-on-Pay votes, as was recommended by our Board of Directors. The Compensation Committee considered the final 2011 meeting results, and determined that no changes to our executive compensation policies or decisions should be made in response to the vote and that our stockholders should be provided a Say-on-Pay vote every three years. Accordingly, the next Say-on-Pay vote will be held at our 2014 annual meeting of stockholders.

Tax and Accounting Considerations

We have considered the potential impact of Section 162(m) of the Internal Revenue Code of 1986, as amended (Section 162(m)), in structuring our executive compensation program. Generally, the stock options and non-discretionary amounts we pay our named executives under our annual incentive compensation program are fully deductible under Section 162(m). To the extent we pay a named executive officer annual compensation in the form of salary, discretionary or retention bonuses, and/or grants of non-performance based restricted stock in excess of $1 million in the aggregate, such amounts are generally non-deductible (other than payments to our CFO, all of whose compensation is fully deductible under Section 162(m)). Our policy is to pay our executives in the manner that we think is in the best interests of the Company, while taking into account the implications of Section 162(m), as appropriate. This may result in the payment of salary or bonuses, or grants of equity, that are not tax deductible.

Recovery of Incentive Payments

We are subject to the requirements of Section 304 of the Sarbanes Oxley Act of 2002, which provides for the recovery of certain incentive compensation payments made to our CEO or CFO in the event of an accounting restatement arising because of material non-compliance with financial reporting requirements due to misconduct. We have never had occasion to recover an incentive compensation payment to our CEO or CFO under this provision, and have not established any other policy regarding the forfeiture or recovery of incentive compensation. We expect to implement a clawback policy in accordance with the requirements of Section 954 of the Dodd-Frank Wall Street Reform and Consumer Protection Act and the guidance issued by the SEC and national securities exchanges thereunder.

SUMMARY COMPENSATION TABLE

On the Summary Compensation Table below, the cash payments made under our executive compensation program to our named executive officers are reported as follows:

The Non-Equity Incentive Plan Compensation column is used to report the non-discretionary incentive payments earned under our 2011 Executive Incentive Compensation Plan. Such amounts were calculated and paid based on pre-established performance goals.

The Bonus column is used to report discretionary bonus amounts paid under our annual incentive program for 2011, as well as other bonus payments we made to our named executive officers during 2011.


Name and Principal Position (a)	Year (b)		Salary ($) (c)		Bonus¹ ($) (d)		Stock Awards ($) (e)		Option Awards² ($) (f)		Non-Equity Incentive Plan Compensation ($) (g)		All other Compensation³ ($) (h)		Total ($) (i)
George J. Pedersen		2011		1,850,784		610,000		0		0		1,240,000		151,947		3,852,731
Chairman of the Board and		2010		1,691,206		170,000		0		0		1,224,000		184,940		3,270,146
Chief Executive Officer		2009		1,666,394		162,500		0		0		893,750		128,586		2,851,230
(Principal Executive Officer)

Kevin M. Phillips		2011		675,391		160,000		0		417,450		340,000		15,232		1,608,073
Executive Vice President and		2010		590,017		206,000		500,500		217,000		294,000		9,795		1,817,312
Chief Financial Officer		2009		486,286		308,119		0		492,800		302,500		17,497		1,607,202
(Principal Financial Officer)

Louis M. Addeo		2011		737,698		515,000		0		417,450		360,000		21,409		2,051,557
Group President		2010		626,550		325,000		0		637,900		175,000		21,795		1,786,245
		2009		430,972		300,000		0		1,156,350		154,000		26,206		2,067,528

L. William Varner, III		2011		633,890		380,000		0		364,250		280,000		23,630		1,681,771
Group President		2010		488,087		400,000		0		497,600		0		12,557		1,398,244
		2009		122,597		235,000		0		486,000		0		8,694		852,291

Terrence M. Ryan		2011		617,808		660,000		0		364,250		0		23,849		1,665,908
Group President		2010		503,364		400,000		0		497,600		0		15,362		1,416,325

Bonus payments for 2011 reported in this column represent discretionary bonus payments made under our annual incentive compensation program. The amount shown in this column for each of Messrs. Addeo, Varner and Ryan for 2011 also includes a one-time $250,000 retention bonus payment. These retention bonus payments were made pursuant to the terms of the retention agreements described in the Compensation Discussion and Analysis section of this proxy statement.

The amounts in this column reflect the aggregate grant date fair value of each stock option award, as computed in accordance with ASC Topic 718, Compensation – Stock Compensation. See Note 10 to the Financial Statements in ManTech’s 2011 Annual Report on Form 10-K for the valuation method for options granted in 2011, 2010 and 2009. The options granted in 2011 are also reported in the Grants of Plan-Based Awards table on page 34.

All Other Compensation for 2011 consists of the following amounts: (a) matching contributions made to the ManTech 401(k) Plan in the amounts of $7,508, $6,845, $12,293, and $6,209 for Messrs. Phillips, Addeo, Varner, and Ryan, respectively (Mr. Pedersen voluntarily did not participate in the Company’s 401(k) Plan in 2011); (b) contributions to the Employee Stock Ownership Plan in the amount of $1,531 for each of Messrs. Phillips, Addeo, Varner and Ryan (Mr. Pedersen does not participate in the Company’s Employee Stock Ownership Plan); (c) payments of life insurance premiums of $593, $539, $652, and $652 for Messrs. Phillips, Addeo, Varner, and Ryan, respectively; (d) cash dividends credited but not yet paid on unvested shares of restricted stock in the amount of $5,600 for Mr. Phillips; and (d) perquisites in the amount of $151,947, $12,494, $9,152, and $15,458 for Messrs. Pedersen, Addeo, Varner, and Ryan, respectively. The perquisites for Mr. Pedersen consist of: (i) $105,409 for the portion of the total cost to the Company of employees’ time spent on non-corporate matters on behalf of Mr. Pedersen (primarily as a driver), (ii) $26,867 for tax preparation fees, (iii) automobile expenses, and (iv) a club membership. The perquisites for Mr. Addeo consist of: (i) medical and dental insurance premiums, (ii) automobile expenses, and (iii) a club membership. The perquisites for Mr. Varner consist of: (i) automobile expenses, and (ii) a club membership. The perquisites for Mr. Ryan consist of: (i) medical and dental insurance premiums, and (ii) automobile expenses. For tax preparation fees, the amount reported is the dollar amount paid by the Company. For employees’ time, the aggregate incremental cost is determined by using the employee’s salary and overhead costs for the year to calculate an hourly cost and allocating that cost based on the percentage of time spent on these matters compared to the employees’ total time.

GRANTS OF PLAN-BASED AWARDS


Name (a)	Grant Date (b)		Estimated Possible Payouts Under Non-Equity Incentive Plan Awards¹						All Other Option Awards: Number of Securities Underlying Options (#)² (f)		Exercise or Base Price of Option Awards ($/Sh)³ (g)		Grant Date Fair Value of Stock and Option Awards ($)⁴ (h)
Name (a)	Grant Date (b)		Threshold ($) (c)		Target ($) (d)		Maximum ($) (e)				Exercise or Base Price of Option Awards ($/Sh)³ (g)		Grant Date Fair Value of Stock and Option Awards ($)⁴ (h)
George J. Pedersen
2011 Incentive Compensation Program⁵				1,240,000		2,470,000		4,330,000

Kevin M. Phillips
2011 Incentive Compensation Program⁵				340,000		665,000		1,160,000
2011 Option Grant		3/15/11								30,000		41.45		319,200
		11/4/11								15,000		33.53		98,250

Louis M. Addeo
2011 Incentive Compensation Program⁵				360,000		713,000		1,250,000
2011 Option Grant		3/15/11								30,000		41.45		319,200
		11/4/11								15,000		33.53		98,250

L. William Varner, III
2011 Incentive Compensation Program⁵				280,000		548,000		960,000
2011 Option Grant		3/15/11								25,000		41.45		266,000
		11/4/11								15,000		33.53		98,250

Terrence M. Ryan
2011 Incentive Compensation Program⁵				280,000		548,000		960,000
2011 Option Grant		3/15/11								25,000		41.45		266,000
		11/4/11								15,000		33.53		98,250

¹	The criteria for all plan awards were established under the ManTech International Corporation Management Incentive Plan, 2006 Restatement.

The numbers of securities included in this column represent stock option awards that vest over three years, with 1/3 of the total grant vesting on each of the first three anniversary dates of the grant, and that expire five years after the grant date. Vesting and continuation of the options are subject to earlier cancellation in the event of termination of service. All options would fully vest on the officer’s death or disability.

³	For 2011, the exercise price of all option awards was the closing price of our common stock on the Nasdaq Stock Market on the grant date.

⁴

⁵

The amounts in this row represent the potential payouts under our 2011 Incentive Compensation Plan. Actual payouts are shown in the Non-Equity Incentive Plan Compensation column of the Summary Compensation Table on page 33. The awards were based on the performance factors described in the Compensation Discussion and Analysis section of this proxy statement, under the heading Non-Discretionary Incentive Compensation Payments.

OUTSTANDING EQUITY AWARDS AT FISCAL YEAR-END


Name (a)	Grant Date		Option Awards								Stock Awards
Name (a)	Grant Date		Number of Securities Underlying Unexercised Options (#) Exercisable (b)		Number of Securities Underlying Unexercised Options (#) Unexercisable¹ (c)		Option Exercise Price ($) (d)		Option Expiration Date (e)		Number of Shares of Stock That Have Not Vested (#)² (f)		Market Value of Shares of Stock That Have Not Vested ($)³ (g)
George J. Pedersen				—		—		—		—		—		—

Kevin M. Phillips		3/15/2010		—		—		—		—		6,667		208,277
		11/4/2011		0		15,000		33.53		11/4/2016		—		—
		3/15/2011		0		30,000		41.45		3/15/2016		—		—
		8/2/2010		6,667		13,333		39.95		8/2/2015		—		—
		3/13/2009		26,667		13,333		43.94		3/13/2014		—		—
		3/14/2008		30,000		0		42.00		3/14/2013		—		—
		3/15/2007		20,000		0		34.05		3/15/2012		—		—
		3/15/2005		10,000		0		23.95		3/15/2015		—		—

Louis M. Addeo		11/4/2011		0		15,000		33.53		11/4/2016		—		—
		3/15/2011		0		30,000		41.45		3/15/2016		—		—
		8/2/2010		6,667		13,333		39.95		8/2/2015		—		—
		3/15/2010		10,000		20,000		50.05		3/15/2015		—		—
		8/3/2009		16,667		8,333		54.16		8/3/2014		—		—
		5/4/2009		10,000		5,000		35.00		5/4/2014		—		—
		3/13/2009		33,333		16,667		43.94		3/13/2014		—		—

L. William Varner, III		11/4/2011		0		15,000		33.53		11/4/2016		—		—
		3/15/2011		0		25,000		41.45		3/15/2016		—		—
		8/2/2010		6,667		13,333		39.95		8/2/2015		—		—
		3/15/2010		6,667		13,333		50.05		3/15/2015		—		—
		11/2/2009		26,667		13,333		44.19		11/2/2014		—		—

Terrence M. Ryan		11/4/2011		0		15,000		33.53		11/4/2016		—		—
		3/15/2011		0		25,000		41.45		3/15/2016		—		—
		8/2/2010		6,667		13,333		39.95		8/2/2015		—		—
		3/15/2010		6,667		13,333		50.05		3/15/2015		—		—
		11/2/2009		26,667		13,333		44.19		11/2/2014		—		—

The numbers of securities included in this column represent the unvested portion of stock option awards that vest over three years, with 1/3 of the total grant vesting on each of the first three anniversary dates of the grant. Vesting and continuation of the options are subject to cancellation in the event of termination of service. All options would fully vest on the officer’s death or disability.

The number of unvested shares of stock included in this column represents a restricted stock award that vests over three years, with 1/3 of the total grant vesting on each of the first three anniversary dates of the grant. Vesting and continuation of the shares are subject to cancellation in the event of termination of service. All shares of restricted stock would fully vest on the officer’s death or disability.

³	The value reflected in this column is based on a per share price of $31.24 (the closing price of our stock on December 31, 2011).

OPTION EXERCISES AND STOCK VESTED


Name (a)	Option Awards				Stock Awards
Name (a)	Number of Shares Acquired on Exercise (#) (b)		Value Realized on Exercise ($)¹ (c)		Number of Shares Acquired on Vesting (#) (d)		Value Realized on Vesting ($)² (e)
George J. Pedersen		—		—		—		—
Kevin M. Phillips		25,000		254,000		3,333		138,153
Louis M. Addeo		—		—		—		—
L. William Varner, III		—		—		—		—
Terrence M. Ryan		—		—		—		—

¹	The value reflected in this column is based on the closing price of our stock on January 4, 2011 ($40.23) and the exercise price of the options ($30.07).

²	The value reflected in this column is based on the closing price of our stock on March 15, 2011 ($41.45).

POTENTIAL PAYMENTS ON TERMINATION OR CHANGE IN CONTROL

Retention Agreements

Under his retention agreement (as further described in the Compensation Discussion and Analysis section of this proxy statement), Mr. Pedersen, if terminated without cause, is entitled to a lump sum amount equal to his base salary (which was $1,900,000 as of December 31, 2011). For this purpose, cause means (i) a material violation by Mr. Pedersen of the retention agreement, which he fails to cure to the Company’s reasonable satisfaction within thirty (30) days after the Company delivers written notice specifically identifying such violation; (ii) Mr. Pedersen’s willful failure to act in a manner consistent with his responsibilities or with the best interests of the Company, which he fails to cure to the Company’s reasonable satisfaction within thirty (30) days after the Company delivers written demand for satisfactory performance that specifically identifies the manner in which the Company believes that he has not satisfactorily performed his duties; or (iii) Mr. Pedersen’s conviction of a felony (other than an offense related to the operation of an automobile that results only in a fine, license suspension or other non-custodial penalty) or other serious crime involving moral turpitude.

Under the retention agreements with each of Messrs. Addeo, Varner, and Ryan (as further described in the Compensation Discussion and Analysis section of this proxy statement), if the applicable named executive officer had been terminated without good cause (as defined in the agreement), or had died or become disabled, on the last business day of fiscal year 2011, he would have been entitled to acceleration of the retention payment amount ($250,000). The retention payments were subsequently made to each of these named executive officers in satisfaction of the retention agreements, and such agreements are no longer in effect.

Equity Awards

Each of Messrs. Phillips, Addeo, Varner, and Ryan hold unvested stock options which, under the standard terms of our stock option awards, would become vested on the applicable named executive officer’s death or disability. Under the standard terms of our restricted stock awards, Mr. Phillips would also become vested in any unvested shares of restricted stock on his death or disability. Amounts for these and other benefits payable to the named executive officers had they died or become disabled on the last business day of fiscal year 2011 are shown below.

POTENTIAL POST-TERMINATION PAYMENTS


Name	Termination Event	Severance Payment		Accelerated Retention Payment		Life Insurance Death Benefit¹		Maximum LTD Annual Benefit²		Number of Options Accelerated		Aggregate Spread³		Shares of Stock Vested		Market Value for Shares of Stock Vested³
George J. Pedersen	Termination w/o Cause		$1,900,000		—		—		—		—		—		—		—
	Death		—		—		$625,000		—		—		—		—		—
	Disability		—		—		—		$180,000		—		—		—		—

Kevin M. Phillips	Death		—		—		$1,250,000		—		71,666		$0		6,667		$208,277
	Disability		—		—		—		$180,000		71,666		$0		6,667		$208,277

Louis M. Addeo	Termination w/o Good Cause		—		$250,000
	Death		—		—		$1,250,000		—		108,333		$0		—		—
	Disability		—		—		—		$180,000		108,333		$0		—		—

L. William Varner, III	Termination w/o Good Cause		—		$250,000
	Death		—		—		$1,250,000		—		79,999		$0		—		—
	Disability		—		—		—		$180,000		79,999		$0		—		—

Terrence M. Ryan	Termination w/o Good Cause		—		$250,000
	Death		—		—		$1,250,000		—		79,999		$0		—		—
	Disability		—		—		—		$180,000		79,999		$0		—		—

¹	Upon the death of the named executive officer as of December 31, 2011, the amounts in this column would have been payable from life insurance policies for which the Company paid the premiums.

Upon the permanent disability of the named executive officer as of December 31, 2011, the amounts in this column would have been payable from a disability insurance policy for which the Company pays the premiums. Long-term disability pays 60% of salary, up to a maximum monthly benefit of $15,000. The benefit is generally payable until age 67.

³	Based on a per share price of $31.24 (the closing price of our stock on December 31, 2011).

COMPENSATION RISK MANAGEMENT

As part of its oversight of the Company’s executive compensation program, the Compensation Committee considers the impact of that program’s structure on the Company’s risk profile. In this regard, the Compensation Committee oversees management’s evaluation of whether the Company’s compensation policies and programs pose risks that are reasonably likely to have a material adverse effect on the Company. In conducting this evaluation, management reviews the Company’s overall compensation structure and may take into account such factors as the overall mix of compensation, the performance metrics that are used under the Company’s employee incentive programs, the length of the performance periods under such programs, and the overall relationship of the Company’s compensation programs to the Company’s business risk. At the Compensation Committee’s direction, management undertakes such a review annually, or whenever the Company considers new compensation policies or programs for its employees. Management reports any findings of risk related to the Company’s compensation structure, as well as any factors that may mitigate the risk posed by the particular compensation policy or program. Based on this review, the Company concluded that its compensation policies and procedures are not reasonably likely to create risks that would have a material adverse effect on the Company.

AUDIT COMMITTEE REPORT

The Audit Committee reviews ManTech’s financial reporting process on behalf of the Board. Management has the primary responsibility for establishing and maintaining adequate internal financial controls, for preparing the financial statements, and for the public reporting process. Deloitte & Touche LLP (D&T), the Company’s independent registered public accounting firm for 2011, is responsible for expressing an opinion on the conformity of the financial statements with generally accepted accounting principles. Additionally, D&T is responsible for expressing an opinion on the effectiveness of the Company’s internal control over financial reporting.

In this context, we have reviewed and discussed with both management and the independent registered public accounting firm the Company’s audited financial statements, management’s assessment of the effectiveness of the Company’s internal control over financial reporting, and D&T’s evaluation of the Company’s internal control over financial reporting, in each case for the year ended December 31, 2011. The Audit Committee has discussed with D&T those matters required to be discussed by the Securities and Exchange Commission and Statement on Auditing Standards No. 61, Communication with Audit Committees, as amended, and as adopted by the Public Company Accounting Oversight Board in Rule 3200T.

D&T has provided us with the written disclosures and the letter from the independent registered public accounting firm pursuant to applicable requirements of the Public Company Accounting Oversight Board regarding the independent public accounting firm’s communications with the Audit Committee concerning independence. The Audit Committee has discussed with D&T the auditor’s independence from the Company and its management. The Audit Committee has concluded that D&T’s provision of audit and non-audit services to the Company is compatible with D&T’s independence.

Based upon the considerations, reviews, and discussions referred to above, we recommended to the Board of Directors (and the Board of Directors approved) the inclusion of the audited financial statements for the year ended December 31, 2011 in the Company’s Annual Report on Form 10-K for 2011.

The Audit Committee of the Board of Directors

Barry G. Campbell, Chairman

Mary K. Bush

Walter R. Fatzinger, Jr.

Richard J. Kerr

PROPOSAL 2

RATIFICATION OF APPOINTMENT OF

INDEPENDENT AUDITORS

The Audit Committee of the Board of Directors is responsible for selecting and appointing our independent registered public accounting firm. The Audit Committee has appointed the firm of Deloitte & Touche LLP to serve as our independent registered public accounting firm for the fiscal year ending December 31, 2012, subject to the ratification of such appointment by the stockholders at the Annual Meeting. Although stockholder approval is not required by our bylaws or otherwise, we are submitting the appointment of D&T for ratification in order to obtain the views of our stockholders.

In the event the stockholders fail to ratify the appointment, the Audit Committee will reconsider its appointment. Even if the selection is ratified, the Audit Committee may, in its discretion, appoint a different independent registered public accounting firm at any time during the year if the Audit Committee believes that a change would be in the best interests of the Company and its stockholders.

In appointing D&T as our independent registered public accounting firm for the fiscal year ending December 31, 2012, the Audit Committee considered whether D&T’s provision of non-audit services to the Company is compatible with maintaining the auditor’s independence.

D&T served as our independent registered public accounting firm in 2011. We expect that representatives of D&T will be present at the Annual Meeting, and will be available to respond to appropriate questions. Those representatives will also have an opportunity to make a statement or comment on the financial statements if they wish to do so.

Policy Regarding Audit Committee Pre-Approval of Audit and Permitted Non-audit Services

Our Audit Committee charter contains the Audit Committee’s policies for pre-approval of audit and permitted non-audit services performed by our independent registered public accounting firm. The requirement for pre-approval, in part, allows us to assess whether the provision of such services might impair the independence of our independent registered public accounting firm.

The Audit Committee approves the annual audit services engagement and (if necessary) any material changes in terms, conditions, and fees resulting from changes in audit scope or other matters.

The chairman of the Audit Committee has been authorized by the Audit Committee to pre-approve any services arising during the year that were not pre-approved by the Audit Committee at the time of the annual audit services engagement. Services that are pre-approved by the Audit Committee chairman are then communicated to the full Audit Committee at the Audit Committee’s next regularly scheduled meeting.

For each proposed service, the independent registered public accounting firm is required to provide back-up documentation detailing the service. The Audit Committee regularly reviews summary reports provided to us by our independent auditor. During 2011, all services performed by D&T were approved by the Audit Committee pursuant to the Audit Committee’s pre-approval policies.

Fees Paid to Deloitte & Touche LLP

The following table presents the aggregate fees that we were billed for professional services rendered by Deloitte & Touche LLP, the member firms of Deloitte Touche Tohmatsu, and their respective affiliates (collectively, the Deloitte Entities) for the fiscal years ended December 31, 2010 and 2011.


Type of Fees	2010		2011
Audit Fees	$	1,422,206	$	1,368,903
Audit-Related Fees		236,113		160,444
Tax Fees		137,975		86,443
All Other Fees		0		0

TOTAL	$	1,796,294	$	1,615,790

In the table above, in accordance with the definitions and rules of the SEC, each type of fee is defined as follows.

Audit Fees are fees that we were billed by the Deloitte Entities for professional services rendered for the audit of our consolidated financial statements that are included in our Annual Reports on Form 10-K, the audit of the Company’s internal control over financial reporting, and the review of financial statements included in our Quarterly Reports on Form 10-Q.

Audit-Related Fees consist of fees that we were billed by the Deloitte Entities for assurance and related services that are reasonably related to the performance of the audit or review of our financial statements. Audit-Related Fees include services performed in connection with the audits of our 401(k) plans, Employee Stock Ownership Plan, and other benefit plans.

Tax Fees are fees that we were billed by the Deloitte Entities for professional services rendered for tax compliance, tax advice, and tax planning.

All Other Fees are fees that we were billed by the Deloitte Entities for products and services that were not included in the first three categories.

Recommendation of the Board of Directors

The Board recommends that you vote “FOR” the ratification of the appointment of Deloitte & Touche LLP to serve as our independent registered public accounting firm for the fiscal year ending December 31, 2012. All proxies executed and returned will be voted “FOR” the ratification of the appointment of Deloitte & Touche LLP unless the proxy specifies otherwise.

CERTAIN RELATIONSHIPS AND RELATED PERSON TRANSACTIONS

Review and Approval of Transactions with Related Persons

The Audit Committee has established a policy and associated procedures for the review, approval, and monitoring of all transactions involving the Company and “Related Parties” (the Policy). Under the Policy, a Related Party is any director, executive officer, director nominee, 5% or greater stockholder, or an immediate family member of any of these people. With certain exceptions that are detailed in the Policy, a Related Party Transaction is any arrangement, transaction or relationship in which the Company is a participant and any Related Party has or will have a direct or indirect interest (other than solely as a result of being a director or less than 10% beneficial owner of another entity).

Under the Policy, the Audit Committee is responsible for reviewing and approving all Related Party Transactions. If a director is involved in the proposed transaction, he or she will not participate in discussions and decisions about the proposed transaction. In determining whether to approve a proposed Related Party Transaction, the Audit Committee will take into account, among other factors:

the material facts and circumstances of the transaction (such as the nature of the Related Party’s interest, the value of the proposed transaction, the benefit to the Company, and whether the transaction is on terms comparable to an arms-length transaction);

any potential impact on a director’s independence;

public disclosure issues; and

any anticipated perception issues related to the transaction.

If the Audit Committee approves a Related Party Transaction, and the transaction is anticipated to be continuing, the Audit Committee may establish guidelines for senior management to follow in those continuing dealings with the Related Party. In such cases, the Audit Committee is responsible for periodically (and at least annually) reviewing and assessing the ongoing relationships to ensure they are in compliance with the Audit Committee’s guidelines and that the Related Party Transaction remains appropriate. Additionally, the Audit Committee has adopted certain “standing approvals” for some common Related Party Transactions involving de minimis amounts (including certain types of compensation decisions for employees who are family members of Related Parties and charitable contributions to entities that have relationships with Related Parties) that fall below the minimum threshold for public disclosure.

The Policy requires that transactions that exceed the minimum threshold for disclosure in our proxy statement under the relevant SEC rules shall be disclosed in accordance with the applicable laws, rules, and regulations.

Related Party Transactions

Employee Relationships

Ms. Christine Lancaster, our Assistant Vice President and Assistant Corporate Secretary, is the daughter of Mr. George Pedersen, our Chairman of the Board and CEO. Ms. Lancaster has been employed by us on a full-time basis since 1986. For 2011, Ms. Lancaster received salary compensation of $133,910 and a bonus of $13,000.

Transactions with New River Systems

Mr. Kent Warren, who is the son-in-law of Mr. Pedersen, has a 49% ownership interest in New River Systems, a disabled veteran-owned small business that provides technical services and specializes in enterprise integration, systems engineering, ERP, and program management. During 2011, the Company maintained certain contractual relationships with New River Systems, including a mentor/protégé arrangement that was approved by the Defense Contract Management Agency. The Company’s various contractual relationships with New River Systems were terminated prior to the end of 2011. New River Systems received $882,391 in payment for services in 2011.

Compensation Committee Interlocks and Insider Participation

No members of our Compensation Committee in fiscal year 2011 were officers or employees of the Company or former officers of the Company, and no members of our Compensation Committee had any relationship with the Company during fiscal year 2011 requiring disclosure as a related party transaction under the SEC’s rules.

None of our executive officers in fiscal year 2011 served as a director or member of the compensation committee (or other board committee performing equivalent functions) of any other entity which had an executive officer serving as one of our directors or member of our Compensation Committee.

BENEFICIAL OWNERSHIP OF OUR STOCK

Ownership by Our Directors and Executive Officers

The following table sets forth certain information known to us regarding the beneficial ownership of our common stock as of March 15, 2012 by each of the following:

Our named executive officers (identified in the Summary Compensation table)

Our directors and director nominees

Our current directors and executive officers, as a group

We have determined beneficial ownership in accordance with the rules and regulations of the Exchange Act.

Unless otherwise indicated, the persons included in the table below have sole voting and investment power over the shares reported. In addition, because Class B Common Stock may be voluntarily converted into Class A Common Stock on a share-for-share basis, each share of Class B Common Stock also represents beneficial ownership of a share of Class A Common Stock. However, for purposes of this presentation, share amounts and ownership percentages are presented without regard to convertibility. The address for each person in the table below is the mailing address of our principal executive offices: 12015 Lee Jackson Highway, Fairfax, VA 22033-3300.


Name	Class A Common Stock							Class B Common Stock				Total Voting Power^2,3
Name	Total Shares Beneficially Owned¹		Number of Option Shares¹		Percent of Class²			Total Shares Beneficially Owned		Percent of Class		Total Voting Power^2,3
George J. Pedersen		—		—		—			13,192,845		100%		84.8	%
Kevin M. Phillips		109,634		96,667		*			—		—		*
Louis M. Addeo		118,454		118,334		*			—		—		*
L. William Varner, III		55,087		55,000		*			—		—		*
Terrence M. Ryan		55,087		55,000		*			—		—		*
Richard L. Armitage		17,500		12,500		*			—		—		*
Mary K. Bush		16,800		12,500		*			—		—		*
Barry G. Campbell		17,500		12,500		*			—		—		*
Walter R. Fatzinger, Jr		43,025		35,000		*			—		—		*
David E. Jeremiah		35,000		30,000		*			—		—		*
Richard J. Kerr		40,000		35,000		*			—		—		*
Kenneth A. Minihan		25,000		20,000		*			—		—		*
Stephen W. Porter		38,000		35,000		*			—		—		*
All directors and executive officers as a group (14 persons):		592,480		538,502		2.4	%		13,192,845		100%		84.9	%

Shares of common stock subject to options that are or will become exercisable within 60 days after March 15, 2012 comprise the number of shares listed under the column Number of Option Shares, and such shares are also included in computing the total shares of Class A Common Stock beneficially owned by such individual under the column Total Shares Beneficially Owned.

²	An asterisk indicates that the total beneficial ownership of the class of stock or the total voting power of our outstanding common stock (in each case, including shares subject to options that may be exercised within 60 days) is less than 1%.

³	The holders of our Class A Common Stock are entitled to one (1) vote per share, and the holders of our Class B Common Stock are entitled to ten (10) votes per share.

⁴

Includes (i) 49,917 shares of Class B Common Stock held by the ManTech Special Assistance Fund, Inc., a fund over which Mr. Pedersen has voting and investment control, and as to which Mr. Pedersen disclaims beneficial ownership, and (ii) 1,168 shares of Class B Common Stock held by Mr. Pedersen’s wife, Marilyn A. Pedersen.

⁵	Includes 2,225 shares of Class A Common Stock held by Fidelity Brokerage Services LLC for Helen C. Fatzinger, as to which Mr. Fatzinger disclaims beneficial ownership.

Ownership by Holders of More Than 5% of Our Class A Common Stock

The following table details certain information with regard to the beneficial ownership of the owners of more than 5% of our outstanding Class A Common Stock, as of December 31, 2011.


Name and Address	Number of Shares Owned and Nature of Beneficial Ownership			Percent of Outstanding Class A Common Stock¹			Percent of Outstanding Class B Common Stock¹			Total Voting Power¹
George J. Pedersen		13,192,845						100	%		84.8	%
12015 Lee Jackson Hwy, Fairfax, VA 22033
Royce & Associates, LLC		3,539,438	²		15.0	%					2.3	%
745 Fifth Avenue, New York, NY 10151
Neuberger Berman Group LLC		2,516,619	³		10.6	%					1.6	%
605 Third Avenue, New York, NY 10158
BlackRock, Inc		1,701,056	⁴		7.2	%					1.1	%
40 East 52^nd Street, New York, NY 10022
New South Capital Management, Inc		1,504,801	⁵		6.4	%					1.0	%
999 S. Shady Grove Rd., Suite 501, Memphis, TN 38120
Artisan Partners Holdings LP		1,349,568	⁶		5.7	%					0.9	%
875 East Wisconsin Avenue, Suite 800, Milwaukee, WI 53202
Third Avenue Management LLC		1,260,262	⁷		5.3	%					0.8	%
622 Third Avenue, 32nd Floor, New York, NY 10017

Based on 23,638,218 shares of Class A Common Stock and 13,192,845 shares of Class B Common Stock outstanding on December 31, 2011. The holders of our Class A Common Stock are entitled to one (1) vote per share, and the holders of our Class B Common Stock are entitled to ten (10) votes per share. The Class B shares may be converted by their holder into Class A shares at any time.

²	As reported on a Schedule 13G/A filed by Royce & Associates, LLC on January 18, 2012. According to such Schedule 13G/A, Royce & Associates, LLC has sole voting and dispositive power with respect to all 3,539,438 shares.

As reported on a Schedule 13G/A filed by Neuberger Berman Group LLC on February 15, 2012. According to such Schedule 13G/A, Neuberger Berman Group, LLC and Neuberger Berman, LLC have shared voting power with respect to 2,253,746 of these shares, and shared dispositive power with respect to all 2,516,619 of these shares; Neuberger Berman Management LLC reported shared voting and shared dispositive power with respect to 2,229,246 of these shares; and Neuberger Berman Equity Funds reported shared voting and shared dispositive power with respect to 1,963,900 of these shares.

⁴	As reported on a Schedule 13G/A filed by Blackrock, Inc. on February 10, 2012. According to such Schedule 13G/A, Blackrock, Inc. has sole voting and dispositive power with respect to all 1,701,056 of these shares.

⁵

As reported on a Schedule 13G filed by New South Capital Management, Inc. on February 14, 2012. According to such Schedule 13G, New South Capital Management, Inc. has sole voting power with respect to 1,217,426 of these shares and sole dispositive power with respect to all 1,504,801 of these shares.

⁶

As reported on a Schedule 13G filed by Artisan Partners Holdings LP on February 7, 2012. According to such Schedule 13G, Artisan Partners Holdings LP, Artisan Investment Corporation, Artisan Partners Limited Partnership, Artisan Investments GP LLC, ZFIC, Inc., Andrew A. Ziegler, and Carlene M. Ziegler have shared voting power with respect to 1,290,468 of these shares, and shared dispositive power with respect to all 1,349,568 of these shares.

⁷	As reported on a Schedule 13G filed by Third Avenue Management LLC on February 14, 2012. According to such Schedule 13G, Third Avenue Management LLC has the sole voting and dispositive power with respect to all 1,260,262 of these shares.

SECTION 16(A) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE

Section 16(a) of the Securities Exchange Act of 1934, as amended, requires our officers and directors, and persons who own more than 10% of our equity securities, to file reports of ownership and changes in ownership with the SEC, and to furnish us with copies of such Section 16 reports that they file.

Based solely upon our review of copies of such reports received by the SEC, and written representations from our officers and directors that no other reports were required for them, we believe that our officers, directors, and 10% stockholders complied with their Section 16(a) filing obligations for 2011 and timely filed all reports required to be filed pursuant to Section 16(a) for 2011.

STOCKHOLDER PROPOSALS

In order for a stockholder proposal to be considered for inclusion in our proxy statement for our 2013 Annual Meeting of Stockholders pursuant to Rule 14a-8(e) of the Exchange Act, the proposal must be received by our Corporate Secretary at 12015 Lee Jackson Highway, Fairfax, VA 22033-3300, no later than December 3, 2012. The stockholder proposal, including any accompanying supporting statement, may not exceed 500 words. Notice of any stockholder proposal to be submitted outside of the Rule 14a-8 process mentioned above must be received by our Corporate Secretary between December 3, 2012 and February 1, 2013 in order to be considered timely. As to all such matters for which we do not receive notice on or prior to that date, discretionary authority to vote on such proposal shall be granted to the persons designated in our proxy relating to the 2013 Annual Meeting of Stockholders. However, if we determine to change the date of the 2013 Annual Meeting of Stockholders by more than 30 days from May 10, 2013, we will provide stockholders with a reasonable time before we begin to print and mail our proxy materials for the 2013 Annual Meeting of Stockholders, so that our stockholders have an opportunity to make proposals in accordance with the rules and regulations of the SEC.

INCORPORATION BY REFERENCE AND OTHER INFORMATION

We have included our Annual Report on Form 10-K for the fiscal year ended December 31, 2011 (and our audited financial statements for such fiscal year) with this proxy statement; however, the Annual Report and the audited financial statements are not incorporated by reference into this proxy statement, do not constitute a part of the proxy soliciting material, and are not subject to the liabilities of Section 18 of the Exchange Act. You may request additional copies of the accompanying Annual Report, without charge, by contacting our investor relations department.

Available Information

You may obtain a copy of our Annual Report on Form 10-K for the fiscal year ended December 31, 2011 (including the financial statements, financial statement schedules, and exhibits), without charge, by sending a written request to our Corporate Secretary, Jeffrey S. Brown, at ManTech International Corporation, 12015 Lee Jackson Highway, Fairfax, VA 22033-3300, or by calling (703) 218-6000.

Additionally, our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, and amendments to those reports filed with or furnished to the SEC pursuant to Section 13(a) or 15(d) of the Exchange Act are available free of charge on the Corporate Governance page of our Website, as soon as reasonably practicable after we electronically file such reports with the SEC. Information contained on our Website is not a part of this proxy statement.

By Order of the Board of Directors

LOGO

George J. Pedersen

Chairman of the Board and Chief Executive Officer

Fairfax, Virginia

April 2, 2012

LOGO

MANTECH INTERNATIONAL CORPORATION PROXY FOR ANNUAL MEETING OF STOCKHOLDERS - MAY 10, 2012 (This Proxy is solicited by the Board of Directors of the Company) The undersigned Stockholder of ManTech International Corporation hereby appoints George J. Pedersen and Jeffrey S. Brown, or either of them, his/her true and lawful agents and proxies, each with the full power of substitution, to represent and to vote as specified in this proxy all Common Stock of the Company that the undersigned stockholder would be entitled to vote if present in person at the Annual Meeting of Stockholders of ManTech International Corporation to be held at The Hyatt Fair Lakes Circle, 12777 Fair Lakes Circle, Fairfax, Virginia 22033, on Thursday, May 10, 2012 at 11:00 a.m. (EDT). WHEN THIS PROXY IS PROPERLY EXECUTED, THE SHARES TO WHICH THIS PROXY RELATES WILL BE VOTED AS SPECIFIED. IF NO SPECIFICATION IS MADE, THE SHARES TO WHICH THIS PROXY RELATES WILL BE VOTED “FOR ALL NOMINEES” WITH RESPECT TO THE ELECTION OF DIRECTORS IN PROPOSAL 1 AND “FOR” THE RATIFICATION OF THE APPOINTMENT OF DELOITTE & TOUCHE LLP IN PROPOSAL 2, AND THIS PROXY AUTHORIZES THE ABOVE DESIGNATED PROXIES TO VOTE IN THEIR DISCRETION ON SUCH OTHER BUSINESS AS MAY PROPERLY COME BEFORE THE MEETING OR ANY ADJOURNMENTS OR POSTPONEMENTS THEREOF TO THE EXTENT AUTHORIZED BY RULE 14a-4(c) PROMULGATED UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED. (Continued and to be signed on the reverse side.) 14475

LOGO

ANNUAL MEETING OF STOCKHOLDERS OF MANTECH INTERNATIONAL CORPORATION May 10, 2012 NOTICE OF INTERNET AVAILABILITY OF PROXY MATERIAL: The Notice of Meeting, proxy statement and proxy card are available at http://investor.mantech.com/annualmeeting Please sign, date and mail your proxy card in the envelope provided as soon as possible. Please detach and mail in the envelope provided. 20930000000000000000 3 051012 THE BOARD OF DIRECTORS RECOMMENDS A VOTE “FOR ALL NOMINEES” IN PROPOSAL 1 AND “FOR” IN PROPOSAL 2. PLEASE SIGN, DATE AND RETURN PROMPTLY IN THE ENCLOSED ENVELOPE. PLEASE MARK YOUR VOTE IN BLUE OR BLACK INK AS SHOWN HERE 1. Proposal 1 - Election of Directors: NOMINEES: FOR ALL NOMINEES O George J. Pedersen O Richard L. Armitage WITHHOLD AUTHORITY O Mary K. Bush FOR ALL NOMINEES O Barry G. Campbell O Walter R. Fatzinger, Jr. FOR ALL EXCEPT O David E. Jeremiah (See instructions below) O Richard J. Kerr O Kenneth A. Minihan O Stephen W. Porter FOR AGAINST ABSTAIN 2. Proposal 2 - Ratify the appointment of Deloitte & Touche LLP to serve as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2012. 3. In their discretion, the proxies are authorized to vote upon such other business as may properly come before the Annual Meeting or any adjournment thereof. The undersigned acknowledges receipt of the accompanying Notice of Annual Meeting of Stockholders and Proxy Statement, in which Proposals 1 and 2 are fully explained. PLEASE MARK, SIGN, DATE AND RETURN THIS CARD PROMPTLY USING THE ENCLOSED RETURN ENVELOPE. INSTRUCTIONS: To withhold authority to vote for any individual nominee(s), mark “FOR ALL EXCEPT” and fill in the circle next to each nominee you wish to withhold, as shown here: To change the address on your account, please check the box at right and indicate your new address in the address space above. Please note that changes to the registered name(s) on the account may not be submitted via this method. Signature of Stockholder Date: Signature of Stockholder Date: Note: Please sign exactly as your name or names appear on this Proxy. When shares are held jointly, each holder should sign. When signing as executor, administrator, attorney, trustee or guardian, please give full title as such. If the signer is a corporation, please sign full corporate name by duly authorized officer, giving full title as such. If signer is a partnership, please sign in partnership name by authorized person.