MRCY
MERCURY SYSTEMS INC
NASDAQ · Industrials · Aerospace & Defense · US
$75.99
+2.32%0
Insider buys (3m)
31
Insider sells (3m)
-$41.9M
Net value (3m)
-20.2%
Price return (3m)
Form 4 filings
| Date | Insider | Activity | Shares | Price |
|---|---|---|---|---|
| Oct 16, 2026 | Nearhos Barry R · director | A-Award | 235 | $0.00 |
| Sep 23, 2026 | KUPINSKY STUART · officer: EVP, CLO & Corp Sec | Sale | 1,000 | $87 |
| Sep 15, 2026 | Ballhaus William L · director, officer: Chairman, President & CEO | A-Award | 23,629 | $0.00 |
| Sep 15, 2026 | Farnsworth David E. · officer: EVP, CFO | A-Award | 8,212 | $0.00 |
| Sep 15, 2026 | KUPINSKY STUART · officer: EVP, CLO & Corp Sec | A-Award | 5,619 | $0.00 |
| Sep 15, 2026 | Ratner Steven · officer: EVP, CHRO | A-Award | 5,187 | $0.00 |
| Sep 15, 2026 | Munro Douglas · officer: SVP, CAO | A-Award | 2,882 | $0.00 |
| Sep 8, 2026 | Ratner Steven · officer: EVP, CHRO | Sale | 4,000 | $85 |
| Aug 27, 2026 | Ballhaus William L · director, officer: Chairman, President & CEO | Sale | 3,448 | $88 |
| Aug 27, 2026 | Ballhaus William L · director, officer: Chairman, President & CEO | Sale | 10,814 | $90 |
| Aug 27, 2026 | Ballhaus William L · director, officer: Chairman, President & CEO | Sale | 107,628 | $87 |
| Aug 27, 2026 | Ballhaus William L · director, officer: Chairman, President & CEO | M-Exempt | 68,476 | $43 |
| Aug 27, 2026 | Ballhaus William L · director, officer: Chairman, President & CEO | Sale | 38,276 | $89 |
| Aug 27, 2026 | Ballhaus William L · director, officer: Chairman, President & CEO | M-Exempt | 153,676 | $43 |
| Aug 25, 2026 | Ballhaus William L · director, officer: Chairman, President & CEO | M-Exempt | 140,650 | $42 |
| Aug 25, 2026 | KUPINSKY STUART · officer: EVP, CLO & Corp Sec | Sale | 1,000 | $95 |
| Aug 25, 2026 | Ballhaus William L · director, officer: Chairman, President & CEO | M-Exempt | 11,348 | $43 |
| Aug 25, 2026 | Ballhaus William L · director, officer: Chairman, President & CEO | Sale | 204 | $94 |
| Aug 25, 2026 | Ballhaus William L · director, officer: Chairman, President & CEO | Sale | 105,471 | $89 |
| Aug 25, 2026 | Ballhaus William L · director, officer: Chairman, President & CEO | Sale | 64,796 | $92 |
| Aug 25, 2026 | Ballhaus William L · director, officer: Chairman, President & CEO | M-Exempt | 92,850 | $42 |
| Aug 25, 2026 | Ratner Steven · officer: EVP, CHRO | Sale | 356 | $91 |
| Aug 25, 2026 | Ballhaus William L · director, officer: Chairman, President & CEO | Sale | 2,738 | $91 |
| Aug 21, 2026 | Farnsworth David E. · officer: EVP, CFO | Sale | 8,155 | $100 |
| Aug 21, 2026 | Ratner Steven · officer: EVP, CHRO | Sale | 1,026 | $98 |
| Aug 21, 2026 | Ballhaus William L · director, officer: Chairman, President & CEO | Sale | 22,010 | $98 |
| Aug 21, 2026 | KUPINSKY STUART · officer: EVP, CLO & Corp Sec | Sale | 1,308 | $100 |
| Aug 21, 2026 | Ballhaus William L · director, officer: Chairman, President & CEO | Sale | 26,802 | $100 |
| Aug 21, 2026 | Munro Douglas · officer: SVP, CAO | Sale | 109 | $98 |
| Aug 21, 2026 | Farnsworth David E. · officer: EVP, CFO | Sale | 6,612 | $98 |
Institutional positioning
13F filings over the trailing two quarters
New 145Increased 261Reduced 255Sold out 41
| Filer | Action | Shares | Filed |
|---|---|---|---|
| BlackRock, Inc. | Increased | 9,370,902 | Aug 7, 2026 |
| BLACKROCK, INC. | Increased | 8,920,325 | May 13, 2026 |
| JANA PARTNERS MANAGEMENT, LP | Reduced | 4,107,424 | May 15, 2026 |
| JANA Partners Management, LP | Reduced | 3,958,849 | Aug 14, 2026 |
| STATE STREET CORP | Increased | 3,865,719 | May 15, 2026 |
| STATE STREET CORP | Reduced | 3,418,290 | Sep 22, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 3,031,459 | Aug 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 2,910,904 | May 8, 2026 |
| Invesco Ltd. | Increased | 2,669,450 | Aug 14, 2026 |
| INVESCO LTD. | Increased | 2,441,578 | May 12, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 2,422,629 | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 2,403,818 | May 15, 2026 |
| CONESTOGA CAPITAL ADVISORS, LLC | Reduced | 1,918,591 | Apr 24, 2026 |
| FMR LLC | Increased | 1,842,103 | Aug 13, 2026 |
| T. Rowe Price Investment Management, Inc. | Increased | 1,595,711 | Aug 14, 2026 |
Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Oct 16, 2026