UNITED STATES SECURITIES AND EXCHANGE COMMISSION ----------------------
FORM 4 Washington, D.C. 20549 | OMB APPROVAL |
|---------------------|
| OMB Number: |
{} Check this box if STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 3235-0287 |
no longer subject to | Expires: |
Section 16. Form 4 or | November 30, 2011 |
Form 5 obligations may | Estimated average |
continue. See Instruction | burden hours per |
1(b). | response 0.5 |
Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section -----------------------
17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the
(Print or Type Responses) Investment Company Act of 1940
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|1. Name and Address of | 2. Issuer Name and Ticker or Trading Symbol | 5. Relationship of Reporting Person(s) |
| Reporting Person* | | to Issuer (Check all applicable) |
|JANA Partners Management, |MERCURY SYSTEMS INC MRCY | __X__ Director __X__ 10% Owner |
|LP | | _____ Officer __X__ Other |
|--------------------------|---------------------------------------------------|
|(Last) (First) (Middle)|3. Date of Earliest Transaction (Month/Day/Year) | (give title below) (specify below)|
| | 10-23-2024 | See Remarks |
|767 5TH AVENUE,8TH FLOOR |---------------------------------------------------| |
| (Street) |4.If Amendment, Date Original Filed(Month/Day/Year)|-------------------------------------------------|
| | | 6. Individual or Joint/Group Filing |
|NEW YORK - NY - 10153 | | (Check Applicable Line) |
| (City) (State) (Zip) | | _X_ Form filed by One Reporting Person |
| | | ___ Form filed by More than One |
| | | Reporting Person |
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Table I -- Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
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| 1. | 2. | 2a. | 3. | 4. | 5. | 6. | 7. |
| Title of | Trans- | Deemed | Transaction | Securities Acquired | Amount of Sec | Ownership | Nature of |
| Security | action | Execut. | Code | (A) or Disposed of (D) | Beneficially | Form: | Indirect |
| (Instr. 3) | Date | Date | (Instr. 8) | (Instr. 3, 4 and 5) |Owned Following| Direct | Beneficial |
| |----------|----------|---------|----|----------|-----|--------| Transaction(s)| (D) or | Ownership |
| | (Month/ | (Month/ | | | | (A) | | | Indirect | (Instr. 4) |
| | Day/ | Day/ | | | | or | | (Instr. 3 and | (I) | |
| | Year) | Year) | Code | V | Amount | (D) | Price | 4) | Instr. 4) | |
---------------------------------------------------------------------------------|-----------------------------------------------
|Common Stock |10-23-2024| |A | |4,832 |A |$0 | |I |See footnote |
| | | | | |#1 | | | | |#2 |
|--------------------------------------------------------------------------------|-----------------------------------------------|
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
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|1. |2. | 3. | 3a. |4. | 5. | 6. | 7. |8. |9. |10. |11. |
|Title of|Conver- | Trans- | Deemed |Trans- | Number of | Date | Title and |Price |Number |Owner- |Nature of|
|Deriv- |sion or | action | Execu. |action | Deriv- | Exercisable | Amount of |of |of |ship |Indirect |
|ative |Exercise| Date | Date |Code | ative | and Expira- | Underlying |Deriv- |Deriv- |Form |Benefici.|
|Security|Price of| (Month/ | (Month/ |(Instr.| Securities | tion Date | Securities |ative |ative |of |Ownership|
|(Instr. |Deriv- | Day/ | Day/ |8) | Acquired | (Month/Day/ | (Instr. 3 |Secur- |Secur- |Deriv- |(Instr. 4|
| 3) |ative | Year) | Year) | | (A) or | Year) | and 4) |ity |ities |ative | |
| |Security| | | | Disposed of |----------------|--------------|(Instr.|Bene- |Secur- | |
| | | | |-------| (D) (Instr. | | | | | 5) |ficially|ity | |
| | | | | | | 3, 4 and 5) | | | |Amount | |Owned |Direct | |
| | | | | | |--------------| | | |or | |folowing|(D) or | |
| | | | | | | | |Date |Expira- | |Number | |reported|Indirect| |
| | | | | | | | |Exer- |tion | |of | |tran.(s)|(I) | |
| | | | |Code| V| (A) | (D) |cisable|Date |Title |Shares | |(Inst.4)|Instr. 4| |
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+----------------------------------------------------------------------------------+
| | Relationships |
| Reporting Owner Name / Address +----------+----------+----------+-------- -+
| | Director |10% Owner | Officer | Other |
+--------------------------------------+----------+----------+----------+----------+
|JANA Partners Management, LP | X | X | |See Remark|
| | | | |s |
|767 5TH AVENUE | | | | |
|8TH FLOOR | | | | |
|NEW YORK NY 10153 | | | | |
|--------------------------------------+----------+----------+----------+----------|
Explanation of Responses:
1 Represents deferred stock units ("DSUs") that vest on the earlier of the first anni
versary of the grant date and the next annual meeting of shareholders. Vested DSUs do
not convert into shares of common stock until the date on which Scott Ostfeld ("Mr.
Ostfeld"), the Managing Partner of JANA Partners Management, LP ("JANA" or the "Repor
ting Person") ceases to be a member of the Issuer's Board of Directors.
2 Mr. Ostfeld has assigned all rights to any shares issuable pursuant to the grant to
the Reporting Person. Pursuant to the assignment, settlement of the award on vesting
will be made to the Reporting Person.
Remarks:
The Reporting Person may be deemed to be a director by deputization for purposes of Section 16 under the Securities Exchange Act of 1934 by virtue of the fact that Scott Ostfeld, a Partner of the Reporting Person, currently serves on the board of directors of the Issuer.
Signatures
/s/ JANA Partners Management, LP, by Jennifer Fanjiang, Part / 10-25-2024
ner, Chief Legal Officer and Chief Compliance Officer
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** Signature of Reporting Person Date
* If the form is filed by more than one reporting person, seeInstruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations.
See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.
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