Douglas Munro - 12 Nov 2025 Form 4 Insider Report for MERCURY SYSTEMS INC (MRCY)

Role: SVP, CAO
Signature: /s/ Douglas Munro
Issuer symbol: MRCY
Transactions as of: 12 Nov 2025
Net transactions value: -$97,570
Form type: 4
Filing time: 13 Nov 2025, 17:10:13 UTC
Previous filing: 17 Sep 2025
Next filing: 19 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Munro Douglas	SVP, CAO	50 MINUTEMAN ROAD, ANDOVER	/s/ Douglas Munro	13 Nov 2025	0002011703

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MRCY	Common Stock	Sale	$97,570	-1,329	-8.3%	$73.42	14,678	12 Nov 2025	Direct	F1
holding	MRCY	Common Stock						222	12 Nov 2025	401K Plan

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	This transaction was executed in multiple trades at prices ranging from $73.415 to $73.424. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.