Ballhaus William L

SEC Form 4 insider

Chairman, President & CEO · MERCURY SYSTEMS INC ($MRCY)

2 theses · first seen Aug 18, 2026

Window	Theses	Resolved	Wins	Win rate	Avg return	Median return
1d	1	1	1	100%	-6.9%	-6.9%
3d	0	0	0	—	—	—
1w	0	0	0	—	—	—
1m	0	0	0	—	—	—
3m	0	0	0	—	—	—
6m	0	0	0	—	—	—
1y	0	0	0	—	—	—

Past performance does not predict future results. Informational only, not investment advice.

Thesis history

$MRCYSEC Form 4bearish

Ballhaus William L · Chairman, President & CEO at MERCURY SYSTEMS INC · 3h ago1 prior · awaiting results

Sold 48,812 @ $99.12 avg · $4,838,193 · 2026-08-19

Form 4: Ballhaus William L sold MRCY

Ballhaus William L (Chairman, President & CEO at MERCURY SYSTEMS INC) reported an open-market sale of 48,812 shares of MRCY at an average $99.12, roughly $4,838,193, in a Form 4 filed 2026-08-21.

At post $91.36Now $91.360.0% since postedas of Aug 21, 4:59 PM ET

View filing on SEC.gov →

$MRCYSEC Form 4bearish

Ballhaus William L · Chairman, President & CEO at MERCURY SYSTEMS INC · 2d ago1 prior · awaiting results

Sold 27,680 @ $111.18 avg · $3,077,407 · 2026-08-17

Form 4: Ballhaus William L sold MRCY

Ballhaus William L (Chairman, President & CEO at MERCURY SYSTEMS INC) reported an open-market sale of 27,680 shares of MRCY at an average $111.18, roughly $3,077,407, in a Form 4 filed 2026-08-19.

At post $101.25Now $91.36-9.8% since postedas of Aug 21, 4:59 PM ET

1d-6.9%

3d—

1w—

1m—

3m—

6m—

1y—

View filing on SEC.gov →

End of results.