JANA Partners Management, LP - 03 Mar 2026 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: 59,632,145 shares
Disclosed Ownership: 4,114,618 shares
Ownership: 6.9%
Form type: SCHEDULE 13D/A
Filing time: 04 Mar 2026, 21:46:26 UTC
Date of event: 03 Mar 2026
Previous filing: 10 Nov 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	6.9%	4,114,618	4,114,618	0	/s/ Jennifer Fanjiang	Jennifer Fanjiang, Partner, Chief Legal Officer and Chief Compliance Officer	0001998597