Allen Couture - Jul 26, 2023 Form 3 Insider Report for MERCURY SYSTEMS INC (MRCY)

Role: EVP, Execution Excellence
Signature: /s/ Michelle McCarthy, Attorney-in-Fact for Allen Couture
Stock symbol: MRCY
Transactions as of: Jul 26, 2023
Transactions value $: $0
Form type: 3
Date filed: 8/7/2023, 09:27 AM
Next filing: Aug 21, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	MRCY	Common Stock						45.9K	Jul 26, 2023	Direct	F1
holding	MRCY	Common Stock						467	Jul 26, 2023	401K Plan

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

Explanation of Responses:

Id	Content
F1	Includes 22,952 shares of restricted stock that vest in three equal annual installments beginning on October 17, 2023. Also includes 22,952 shares of performance-based restricted stock that will vest on October 17, 2025 assuming on-target performance of pre-established financial objectives for the three-year period ending June 27, 2025. If actual performance under the performance-based restricted stock awards is determined to be above or below the on-target performance level of the awards, then the number of shares that will vest for these awards will range from 0% to 300% of the shares that would have vested for on-target performance.

Content

Includes 22,952 shares of restricted stock that vest in three equal annual installments beginning on October 17, 2023. Also includes 22,952 shares of performance-based restricted stock that will vest on October 17, 2025 assuming on-target performance of pre-established financial objectives for the three-year period ending June 27, 2025. If actual performance under the performance-based restricted stock awards is determined to be above or below the on-target performance level of the awards, then the number of shares that will vest for these awards will range from 0% to 300% of the shares that would have vested for on-target performance.