13 insiders reported 102 Form 4 transactions for MERCURY SYSTEMS INC (MRCY) over the past 18 months (most recent 2026-09-23). Recent activity: KUPINSKY STUART (EVP, CLO & Corp Sec) Sell 1,000 shares, KUPINSKY STUART (EVP, CLO & Corp Sec) Buy 5,619 shares, Ballhaus William L (Chairman, President & CEO) Buy 23,629 shares, Farnsworth David E. (EVP, CFO) Buy 8,212 shares, Ratner Steven (EVP, CHRO) Buy 5,187 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-23 | KUPINSKY STUART | EVP, CLO & Corp Sec | Sell | 1,000 | $86,520 |
| 2026-09-15 | KUPINSKY STUART | EVP, CLO & Corp Sec | Buy | 5,619 | $0 |
| 2026-09-15 | Ballhaus William L | Chairman, President & CEO | Buy | 23,629 | $0 |
| 2026-09-15 | Farnsworth David E. | EVP, CFO | Buy | 8,212 | $0 |
| 2026-09-15 | Ratner Steven | EVP, CHRO | Buy | 5,187 | $0 |
| 2026-09-15 | Munro Douglas | SVP, CAO | Buy | 2,882 | $0 |
| 2026-09-08 | Ratner Steven | EVP, CHRO | Sell | 4,000 | $338,030 |
| 2026-08-27 | Ballhaus William L | Chairman, President & CEO | Buy | 153,676 | $6.6M |
| 2026-08-27 | Ballhaus William L | Chairman, President & CEO | Sell | 107,628 | $9.4M |
| 2026-08-27 | Ballhaus William L | Chairman, President & CEO | Sell | 3,448 | $303,400 |
| 2026-08-27 | Ballhaus William L | Chairman, President & CEO | Buy | 68,476 | $2.9M |
| 2026-08-27 | Ballhaus William L | Chairman, President & CEO | Sell | 38,276 | $3.4M |
| 2026-08-27 | Ballhaus William L | Chairman, President & CEO | Sell | 10,814 | $970,492 |
| 2026-08-25 | KUPINSKY STUART | EVP, CLO & Corp Sec | Sell | 1,000 | $95,230 |
| 2026-08-25 | Ballhaus William L | Chairman, President & CEO | Buy | 92,850 | $3.9M |
| 2026-08-25 | Ratner Steven | EVP, CHRO | Sell | 356 | $32,524 |
| 2026-08-25 | Ballhaus William L | Chairman, President & CEO | Sell | 64,796 | $6.0M |
| 2026-08-25 | Ballhaus William L | Chairman, President & CEO | Sell | 204 | $19,076 |
| 2026-08-25 | Ballhaus William L | Chairman, President & CEO | Buy | 140,650 | $5.9M |
| 2026-08-25 | Ballhaus William L | Chairman, President & CEO | Buy | 11,348 | $487,964 |
| 2026-08-25 | Ballhaus William L | Chairman, President & CEO | Sell | 105,471 | $9.4M |
| 2026-08-25 | Ballhaus William L | Chairman, President & CEO | Sell | 2,738 | $248,063 |
| 2026-08-21 | Farnsworth David E. | EVP, CFO | Sell | 8,155 | $817,995 |
| 2026-08-21 | KUPINSKY STUART | EVP, CLO & Corp Sec | Sell | 1,308 | $131,200 |
| 2026-08-21 | Ballhaus William L | Chairman, President & CEO | Sell | 26,802 | $2.7M |
Source: SEC Form 4 filings · as of 2026-09-23