1 | P a g e   COR-P04-05      Mercury Systems, Inc.   Company Policy Effective Date: May 1, 2024  COR-P04-05 Approver: Stuart H. Kupinsky  Securities Trades by  Company Personnel  Authorized By: EVP, Chief Legal Officer  The Need For A Policy Statement. This Statement sets forth the policy of Mercury  Systems, Inc. and its subsidiaries (collectively, “Mercury”) regarding insider trading and the  disclosure of information concerning Mercury. Federal securities laws prohibit the executive  officers, directors, and employees of a public company from trading in the securities of that  company on the basis of material, non-public information. For many years, the Securities  and Exchange Commission (“SEC”) and the U.S. attorneys have vigorously pursued  violations of insider trading laws. The individuals directly involved in such violations can, of  course, be held liable for them. In addition, Mercury may be fined up to $25 million for  failing to prevent violations by company personnel. In light of the severity of the possible  sanctions both to our personnel and to Mercury itself, we have adopted the policies and  procedures set forth in this Policy Statement. Our objective is to avoid even the appearance  of improper conduct on the part of anyone employed by, or associated with, Mercury.   This Policy Statement is applicable to all executive officers, directors, and employees of  Mercury. While these policies and procedures must be followed, they are not intended to  replace the primary responsibility of each executive officer, director, and employee to  understand and comply with the prohibitions against insider trading under federal and state  securities laws. If you have any questions on any of these policies and procedures, or on  your obligations under the securities laws generally, please contact our Chief Legal Officer,  who is the Compliance Officer for purposes of ensuring compliance with this Policy  Statement. In some situations it may be necessary for you to consult legal counsel  regarding securities law requirements.   The Consequences. The consequences of insider trading violations can be staggering.  Persons who trade on inside information (or tip information to others) may be required to:  disgorge the profit gained or the loss avoided by the trading; pay the loss suffered by the  persons who, contemporaneously with the purchase or sale of securities that are the subject  of such violation, have purchased (where such violation is based on a sale of securities) or  sold (where such violation is based on a purchase of securities) securities of the same class;  pay civil penalties of up to three times the profit gained or loss avoided; pay a criminal  penalty of up to $5 million (up to $25 million for Mercury); and serve a jail term of up to 20  years. Mercury may and/or the supervisors of the person violating the rules may also be  required to pay major civil or criminal penalties and could under certain circumstances be  subject to private lawsuits by contemporaneous traders for damages suffered as a result of  illegal insider trading or tipping by persons under Mercury’s control.   Violation of this Policy Statement or any federal or state insider trading laws may subject  the person violating such policy or laws to disciplinary action by Mercury up to and including  termination. Mercury reserves the right to determine, in its own discretion and on the basis  of the information available to it, whether this Policy Statement has been violated. Mercury  may determine that specific conduct violates this Policy Statement, whether or not the  conduct also violates the law. It is not necessary for Mercury to await the filing or conclusion  of a civil or criminal action against the alleged violator before taking disciplinary action.  
 
 
       2 | P a g e   COR-P04-05      Needless to say, any of the above consequences, or even an SEC investigation that does not  result in prosecution, can tarnish one’s reputation and irreparably damage a career.   Our Policy. If an executive officer, director, or any employee has material, non-public  information relating to Mercury, it is our policy that neither that person nor any related  person may buy or sell securities of Mercury or engage in any other action to take  advantage of, or pass on to others, that information. Transactions that may be necessary or  justifiable for independent reasons (such as the need to raise money for an emergency  expenditure) are no exception. Even the appearance of an improper transaction must be  avoided to preserve our reputation for adhering to the highest standards of conduct. This  prohibition does not apply to the exercise of stock options, but does apply to cashless  exercises which involve a sale of stock and to the use of outstanding Mercury securities to  constitute part or all of the exercise price of an option.   Material Information. Information about Mercury is “material” if it could reasonably be  expected to affect the investment or voting decisions of a stockholder or investor, or if the  disclosure of the information could reasonably be expected to significantly alter the total  mix of information in the marketplace about Mercury. In short, any information which could  reasonably be expected to affect the price of the stock. Common examples of information  that will frequently be regarded as material are: financial performance information and  significant changes in financial performance; future (near-term) growth projections;  strategic plans; news of a pending or proposed merger, acquisition, joint venture, or tender  offer; news of a significant sale of assets or the disposition of a subsidiary; changes in  dividend policies, the declaration of a stock split, or the offering of additional securities;  changes in management; significant changes in products or product lines; the gain or loss of  a substantial program, customer, or supplier; and supplier or inventory issues. Either  positive or negative information may be material.   Twenty-Twenty Hindsight. Remember, if your securities transactions become the subject  of scrutiny, they will be viewed after-the-fact with the benefit of hindsight. As a result,  before engaging in any transaction you should carefully consider how regulators and others  might view your transaction in hindsight.   Transactions by Related Persons. This Policy Statement applies to securities trades by  your spouse, child, parent, sibling, or other family member living in the same household, all  persons who execute trades on your behalf, and investment funds, trusts, retirement plans,  partnerships, corporations, and other entities over which you have the ability to influence or  direct investment decisions concerning securities.   Tipping Information to Others. Whether the information is proprietary information about  Mercury or information that could have an impact on our stock price, executive officers,  directors, and employees must not pass the information on to others. The above penalties  apply, whether or not you derive any benefit from another’s actions.   When Information Is Public. As you can appreciate, it is also improper for an executive  officer, director, or employee to enter a trade immediately after Mercury has made a public  announcement of material information, including earnings releases. Because Mercury’s  stockholders and the investing public should be afforded the time to receive the information  and digest it, you should not engage in any transactions until 24 hours after the information  has been disseminated in a manner making it available to investors generally (such as  through an SEC filing or press release).   
 
 
       3 | P a g e   COR-P04-05      Blackout Periods. In order to avoid even the appearance of impropriety, it is Mercury’s  policy that all executive officers, directors, and certain “restricted employees” shall not buy  or sell securities of Mercury during a “blackout period.” The recurring quarterly earnings  blackout normally runs from two weeks (14 calendar days) prior to the end of the quarter or  fiscal year end, until 24 hours after the distribution of the earnings release. Depending on  the circumstances, additional blackout periods may be established based on material events  involving Mercury. “Restricted employees” are those employees designated in writing from  time to time by the Chief Executive Officer, Chief Financial Officer, or Chief Legal Officer as  persons who may have access to material, non-public information. You will be notified if you  are designated as a restricted employee prior to any blackout period.  This prohibition does not apply to the exercise of stock options, but does apply to cashless  exercises which involve a sale of stock and to the use of outstanding Mercury securities to  constitute part or all of the exercise price of an option. In addition, this prohibition does not  apply to a sale of stock to satisfy the minimum required tax withholding triggered by the  vesting of restricted stock during a blackout period; provided, however, that you may not  sell more shares than the minimum number required to satisfy your minimum tax  withholding obligations related to the vesting of restricted stock during the blackout period.     Special Procedures. Executive officers, directors, and certain employees of Mercury as  designated in writing from time to time by either of the Chief Executive Officer, Chief  Financial Officer, or Chief Legal Officer, must comply with special procedures regarding the  pre-clearance of securities trades. If you are required to comply with these procedures, you  will be notified and will receive a copy of the procedures.   No Short Sales, Purchases or Sales of Derivative Securities, or Holding Mercury  Securities in a Margin Account. No executive officer, director, or employee subject to the  special procedures noted above may at any time sell any securities of Mercury that are not  owned by such person at the time of the sale (a “short sale”). Also, no such executive  officer, director, or designated employee may buy or sell puts, calls, or other derivative  securities of Mercury at any time. In addition, no such executive officer, director, or  designated employee may hold Mercury securities in a brokerage margin account.   Executive Officers, Board Members, and Affiliates of Mercury (Section 16  Reporting Persons). Members of this group must also comply with the requirements of  Section 16 of the Securities Exchange Act of 1934, as amended, and the regulations  promulgated thereunder relating to purchases and sales of Mercury stock within a six-month  period. Members of this group must generally make all sales of stock in compliance with  Rule 144 promulgated under the Securities Act of 1933, as amended. Legal counsel should  be consulted for clarification of Rule 144 procedures. This Policy Statement is not intended  to describe the requirements of Rule 144 insofar as that rule may impact sales of your  Mercury stock, nor is this Policy Statement intended to explain the prohibitions on short- swing trading set forth in Section 16. It should be noted that violations of Section 16 can  result in the forfeiture of profit on stock transactions to Mercury. Accordingly, persons  subject to Section 16 should seek legal counsel before engaging in any transaction in  Mercury stock.   Continuation of Restrictions. These restrictions continue to apply to executive officers,  directors, and employees of Mercury following the termination of any such individual’s  service to or employment with Mercury until any material, non-public information possessed  by such individual has become public or is no longer material, whichever is earlier.  
 
 
       4 | P a g e   COR-P04-05      Unauthorized Disclosure; Prohibition on Commenting on Mercury on Social Media,  Internet Chat Rooms, and Websites. While we encourage our stockholders and potential  investors to obtain information about Mercury, we believe that information should come  from our publicly-filed SEC reports, press releases, and external website or from a  designated Mercury spokesperson, rather than from speculation or unauthorized disclosures  by executive officers, directors, or employees of Mercury. For this reason, all such  disclosures shall be made in accordance with Mercury’s Public Disclosure Policy.  Confidential Information. Mercury also has strict policies relating to safeguarding the  confidentiality of its internal, proprietary information. These policies include procedures  regarding identifying, marking, and safeguarding confidential information and employee  confidentiality agreements. You should comply with these policies at all times.  Reporting of Violations. If you violate this Policy Statement or any federal or state laws  governing insider trading, or know of any such violation by any executive officer, director,  or employee of Mercury, you must report the violation immediately to our Compliance  Officer at (978) 967-1631. However, if the conduct in question involves the Compliance  Officer, if you have reported such conduct to the Compliance Officer and do not believe that  he has dealt with it properly, or if you do not feel that you can discuss the matter with the  Compliance Officer, you may raise the matter with our Chief Executive Officer at (978) 967- 3675.  Waivers. A waiver of any provision of this Policy Statement in a specific instance may be  authorized in writing by the Compliance Officer, and any such waiver shall be reported to  Mercury’s Board of Directors.  Modifications. Mercury may at any time change this Policy Statement or adopt such other  policies or procedures which it considers appropriate to carry out the purposes of its insider  trading policy. Mercury will deliver notice of any such change to you by email (or other  delivery option selected by Mercury). You will be deemed to have received, be bound by,  and agree to revisions of this Policy Statement when such revisions have been delivered or  otherwise made available to you.  Company Assistance. Any person who has questions about specific transactions or this  Policy Statement generally may obtain additional guidance from the Compliance Officer. It  must be emphasized that the policies and procedures set forth in this Policy Statement  present only a general framework within which you may buy and sell securities of Mercury  without violating insider trading laws. Ultimate responsibility for adhering to this Policy  Statement and avoiding improper transactions rests with you. You should not, therefore,  rely totally on the policies and procedures set forth herein, but rather, you should obtain  additional guidance whenever necessary and, if any questions remain as to the applicability  of insider trading laws, you should abstain from trading in Mercury’s securities.   * * * * *  Your failure to observe this Policy Statement could lead to significant legal  problems, and could have other serious consequences, including the termination  of your employment.