MERCURY SYSTEMS INC — Director's Dealing 2017

May 9, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MERCURY SYSTEMS INC (MRCY)
CIK: 0001049521
Period of Report: 2017-05-08

Reporting Person: THIBAUD DIDIER M C (EVP, COO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-05-08	Common Stock	M	30000	$13.07	Acquired	418694	Direct
2017-05-08	Common Stock	S	30000	$40.4138	Disposed	388694	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-05-08	NQ Stock Option (Right to buy)	$13.07	M	30000	Disposed	2017-06-05	Common Stock (30000)	Direct

Footnotes

F1: The exercise of the stock option and sale of the underlying shares reported herein was pursuant to a 10b5-1 stock trading plan for a stock option expiring on June 5, 2017.

F2: The price reported in Colum 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $40.13 to $40.73, inclusive.