Insider tradingForm 4

MERCURY SYSTEMS INC (MRCY) Insider Trading

28 open-market trades reported since Aug 19, 2026: 0 purchases worth $0 and 28 sales worth $41.9M.

By insider

Insider	Role	Bought	Sells	Sold	Latest
Stuart Kupinsky	General Counsel	$0	6	$652K	Oct 26, 2026
Steven Ratner	EVP	$0	6	$1.03M	Sep 8, 2026
William L. Ballhaus	CEO	$0	8	$37.7M	Aug 27, 2026
David E. Farnsworth	CFO	$0	4	$2.43M	Aug 21, 2026
Douglas Munro	CAO	$0	4	$165K	Aug 21, 2026

All trades

MRCY insider trades
Filed	Traded	Insider	Role	Type	Shares	Price ($)	Value	Holding	Filing
Oct 26	Oct 21	Stuart KupinskyGeneral Counsel	General Counsel	▼ SELL10b5-1	1,000	76.00	$76K	−1.6%	Form 4 ↗
Sep 23	Sep 21	Stuart KupinskyGeneral Counsel	General Counsel	▼ SELL10b5-1	1,000	86.52	$87K	−1.6%	Form 4 ↗
Sep 8	Sep 3	Steven RatnerEVP	EVP	▼ SELL	4,000	84.51	$338K	−17%	Form 4 ↗
Aug 27	Aug 25	William L. BallhausCEO	CEO	▼ SELL	111,076	87.12	$9.68M	−25%	Form 4 ↗
Aug 27	Aug 26	William L. BallhausCEO	CEO	▼ SELL	49,090	89.10	$4.37M	−12%	Form 4 ↗
Aug 25	Aug 24	William L. BallhausCEO	CEO	▼ SELL	108,209	89.50	$9.68M	−27%	Form 4 ↗
Aug 25	Aug 21	William L. BallhausCEO	CEO	▼ SELL	65,000	92.41	$6.01M	−20%	Form 4 ↗
Aug 25	Aug 21	Stuart KupinskyGeneral Counsel	General Counsel	▼ SELL10b5-1	1,000	95.23	$95K	−1.7%	Form 4 ↗
Aug 25	Aug 21	Steven RatnerEVP	EVP (ind.)	▼ SELL	356	91.36	$33K	All sold	Form 4 ↗
Aug 21	Aug 19	William L. BallhausCEO	CEO	▼ SELL	26,802	100.31	$2.69M	−9.7%	Form 4 ↗
Aug 21	Aug 20	William L. BallhausCEO	CEO	▼ SELL	22,010	97.67	$2.15M	−8.8%	Form 4 ↗
Aug 21	Aug 19	David E. FarnsworthCFO	CFO	▼ SELL	8,155	100.31	$818K	−6.1%	Form 4 ↗
Aug 21	Aug 20	David E. FarnsworthCFO	CFO	▼ SELL	6,612	97.67	$646K	−5.3%	Form 4 ↗
Aug 21	Aug 19	Steven RatnerEVP	EVP	▼ SELL	2,187	100.31	$219K	−8.3%	Form 4 ↗
Aug 21	Aug 19	Stuart KupinskyGeneral Counsel	General Counsel	▼ SELL	1,308	100.31	$131K	−2.2%	Form 4 ↗
Aug 21	Aug 20	Steven RatnerEVP	EVP	▼ SELL	1,026	97.67	$100K	−4.2%	Form 4 ↗
Aug 21	Aug 19	Douglas MunroCAO	CAO	▼ SELL	548	100.31	$55K	−4.0%	Form 4 ↗
Aug 21	Aug 20	Douglas MunroCAO	CAO	▼ SELL	109	97.67	$11K	−0.8%	Form 4 ↗
Aug 19	Aug 18	William L. BallhausCEO	CEO	▼ SELL	24,144	111.36	$2.69M	−8.0%	Form 4 ↗
Aug 19	Aug 18	David E. FarnsworthCFO	CFO	▼ SELL	7,347	111.36	$818K	−5.2%	Form 4 ↗
Aug 19	Aug 17	William L. BallhausCEO	CEO	▼ SELL	3,536	109.95	$389K	−1.2%	Form 4 ↗
Aug 19	Aug 18	Steven RatnerEVP	EVP	▼ SELL	1,971	111.36	$219K	−6.9%	Form 4 ↗
Aug 19	Aug 17	David E. FarnsworthCFO	CFO	▼ SELL	1,345	109.95	$148K	−1.0%	Form 4 ↗
Aug 19	Aug 17	Stuart KupinskyGeneral Counsel	General Counsel	▼ SELL	1,195	109.95	$131K	−2.0%	Form 4 ↗
Aug 19	Aug 18	Stuart KupinskyGeneral Counsel	General Counsel	▼ SELL	1,178	111.36	$131K	−2.0%	Form 4 ↗
Aug 19	Aug 17	Steven RatnerEVP	EVP	▼ SELL	1,084	109.95	$119K	−3.7%	Form 4 ↗
Aug 19	Aug 18	Douglas MunroCAO	CAO	▼ SELL	494	111.36	$55K	−3.5%	Form 4 ↗
Aug 19	Aug 17	Douglas MunroCAO	CAO	▼ SELL	404	109.95	$44K	−2.8%	Form 4 ↗

Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings