JANA Partners Management, LP - 06 Nov 2025 Form 4 Insider Report for MERCURY SYSTEMS INC (MRCY)

Signature
/s/ JANA Partners Management, LP, by Jennifer Fanjiang, Partner, Chief Legal Officer and Chief Compliance Officer
Issuer symbol
MRCY
Transactions as of
06 Nov 2025
Net transactions value
-$75,450,000
Form type
4
Filing time
10 Nov 2025, 18:05:15 UTC
Previous filing
24 Oct 2025
Next filing
25 Nov 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
JANA Partners Management, LP Director, Other* 888 SEVENTH AVENUE, 24TH FLOOR, NEW YORK /s/ JANA Partners Management, LP, by Jennifer Fanjiang, Partner, Chief Legal Officer and Chief Compliance Officer 10 Nov 2025 0001998597

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MRCY Common Stock, par value $0.01 per share Sale $75,450,000 -1,000,000 -17% $75.45 4,966,675 06 Nov 2025 See footnote F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The transaction reported herein was effected for the purpose of rebalancing the holdings of funds and accounts managed by JANA (as defined below).
F2 JANA Partners Management, LP ("JANA" or the "Reporting Person") is a private money management firm which beneficially owns the securities reported herein through various accounts under its management and control. JANA Partners Management GP, LLC (the "GP") is the general partner of JANA. Barry Rosenstein is the Founder of the GP and JANA. JANA, the GP and Barry Rosenstein disclaim any beneficial ownership of any of the Issuer's securities reported herein except to the extent of their pecuniary interest therein, if any.

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 Managing Partner and Portfolio Manager of the Reporting Person, currently serves on the board of directors of the Issuer.