JANA Partners Management, LP - 06 Nov 2025 SCHEDULE 13D/A Report for MERCURY SYSTEMS INC Common Stock, par value $0.01 per share (MRCY)

Filing Manager: JANA Partners Management, LP
Reporting Manager: JANA Partners Management, LP
Security: MERCURY SYSTEMS INC Common Stock, par value $0.01 per share
Symbol: MRCY
Shares outstanding: 59,839,458 shares
Disclosed Ownership: 4,966,675 shares
Ownership: 8.3%
Form type: SCHEDULE 13D/A
Filing time: 10 Nov 2025, 18:30:23 UTC
Date of event: 06 Nov 2025
Previous filing: 15 Aug 2025
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
JANA Partners Management, LP	8.3%	4,966,675	4,966,675	0	/s/ Jennifer Fanjiang	Jennifer Fanjiang, Partner, Chief Legal Officer and Chief Compliance Officer	0001998597