Transaction #2307 · Form 4 · 0000902664-25-004562

MERCURY SYSTEMS INC · Stock award · Common Stock, par value $0.01 per share

MERCURY SYSTEMS INC · Transacted October 22, 2025 · Filed October 24, 2025

Original SEC filing ↗

What does this filing report?

An SEC Form 4 filing for MERCURY SYSTEMS INC records a stock award involving Common Stock, par value $0.01 per share on October 22, 2025. The reported quantity was 2,362. The filing date is October 24, 2025. This is one transaction record; amounts are not allocated among any joint reporting owners.

The acquisition category describes how securities were received. It does not by itself establish a cash purchase of common stock. Read the transaction code definitionsand the original filing before interpreting the amounts.

Transaction details

Company CIK
0001049521
Security type
Non-derivative
Acquisition type
Stock award · Code A
Quantity acquired
2,362
Reported price
0
Reference value
0
Currency
Currency not specified
Ownership
Indirect
Holdings after transaction
5,966,675
Ownership description
See footnotes
SEC acceptance time
Oct 24, 2025, 4:35 PM EDT
10b5-1 indication
Not indicated

Reference value is reported quantity × reported price. It is not a confirmed cash payment or an estimate of a derivative's economic value. A missing currency is not assumed to be USD.

Reporting owners

These are the reporting owners named in the filing. Quantities and amounts are not allocated among co-reporters. Roles reflect this filing, not a current profile.

Company listings

MRCY · Nasdaq

This transaction is not mapped to a specific company listing.

Filing footnotes & remarks

F1
Represents deferred stock units ("DSUs") that vest on the earlier of the first anniversary 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 "Reporting Person") ceases to be a member of the Issuer's board of directors.
F2
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.
F3
JANA 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 Mr. Ostfeld, a Managing Partner and Portfolio Manager of of the Reporting Person, currently serves on the board of directors of the Issuer.

Footnotes are reproduced as plain text from the current source filing. For the full context, read the original SEC filing.

This record was updated Eastern Time. This is the stored record update time, not the transaction date. Report a correction.