Form 4 for MRCY MERCURY SYSTEMS INC

Accepted 2025-05-09 00:00:00 ET · period of report 2025-05-08 · accession 0000902664-25-002228 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
MI	2025-05-09	2025-05-08+	MRCY	JANA Partners Management, LP	Dir, 10%, See Remarks	S - Sale	$46.06	-188.2K	6.86M	-3%	-$8.67M

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Common Stock	2025-05-09	S	D	100,000	$45.87	6,761,313	I See footnote	—	—	(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 (the "JANA Funds"). 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.
2	Common	Common Stock	2025-05-08	S	D	88,152	$46.27	6,861,313	I See footnote	—	—	(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 (the "JANA Funds"). 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.