MRCY insider trades & Congress trades
Mercury Systems Inc: public insider filings and Congress disclosures, in one place.
Bourse has recorded 22 open-market insider transactions in Mercury Systems Inc (MRCY) (0 purchases with code P and 22 sales with code S), the most recent on October 21, 2026.
In the last 90 days: 0 purchases by 0 insiders ($0) and 22 sales by 5 ($37.2M).
Insider transactions
SEC Form 4, open-market purchases (P) and sales (S) only. Awards, option exercises and tax withholding are excluded. “After” shows the stock’s return over the month following the trade, where available.
| Date | Insider | Role | Type | Shares | Price | Value | After 1M |
|---|---|---|---|---|---|---|---|
| Oct 21, 2026 | Kupinsky Stuart | EVP, CLO & Corp Sec | Sell | 1,000 | $76.00 | $76K | – |
| Sep 21, 2026 | Kupinsky Stuart | EVP, CLO & Corp Sec | Sell | 1,000 | $86.52 | $87K | −0.1% |
| Sep 3, 2026 | Ratner Steven | EVP, CHRO | Sell | 4,000 | $84.51 | $338K | −0.0% |
| Aug 26, 2026 | Ballhaus William L | Chairman, President & CEO | Sell | 38,276 | $88.91 | $3.40M | −0.1% |
| Aug 26, 2026 | Ballhaus William L | Chairman, President & CEO | Sell | 10,814 | $89.74 | $970K | −0.1% |
| Aug 25, 2026 | Ballhaus William L | Chairman, President & CEO | Sell | 107,628 | $87.09 | $9.37M | −0.1% |
| Aug 25, 2026 | Ballhaus William L | Chairman, President & CEO | Sell | 3,448 | $87.99 | $303K | −0.1% |
| Aug 24, 2026 | Ballhaus William L | Chairman, President & CEO | Sell | 105,471 | $89.47 | $9.44M | −0.1% |
| Aug 24, 2026 | Ballhaus William L | Chairman, President & CEO | Sell | 2,738 | $90.60 | $248K | −0.1% |
| Aug 21, 2026 | Ballhaus William L | Chairman, President & CEO | Sell | 64,796 | $92.40 | $5.99M | −0.1% |
| Aug 21, 2026 | Ballhaus William L | Chairman, President & CEO | Sell | 204 | $93.51 | $19K | −0.1% |
| Aug 21, 2026 | Kupinsky Stuart | EVP, CLO & Corp Sec | Sell | 1,000 | $95.23 | $95K | −0.1% |
| Aug 21, 2026 | Ratner Steven | EVP, CHRO | Sell | 356 | $91.36 | $33K | −0.1% |
| Aug 20, 2026 | Ballhaus William L | Chairman, President & CEO | Sell | 22,010 | $97.67 | $2.15M | −0.1% |
| Aug 20, 2026 | Farnsworth David E. | EVP, CFO | Sell | 6,612 | $97.67 | $646K | −0.1% |
| Aug 20, 2026 | Munro Douglas | SVP, CAO | Sell | 109 | $97.67 | $11K | −0.1% |
| Aug 20, 2026 | Ratner Steven | EVP, CHRO | Sell | 1,026 | $97.67 | $100K | −0.1% |
| Aug 19, 2026 | Ballhaus William L | Chairman, President & CEO | Sell | 26,802 | $100.31 | $2.69M | −0.1% |
| Aug 19, 2026 | Farnsworth David E. | EVP, CFO | Sell | 8,155 | $100.31 | $818K | −0.1% |
| Aug 19, 2026 | Kupinsky Stuart | EVP, CLO & Corp Sec | Sell | 1,308 | $100.31 | $131K | −0.1% |
| Aug 19, 2026 | Munro Douglas | SVP, CAO | Sell | 548 | $100.31 | $55K | −0.1% |
| Aug 19, 2026 | Ratner Steven | EVP, CHRO | Sell | 2,187 | $100.31 | $219K | −0.1% |
Data as of November 8, 2026. Public filings only. A purchase or sale by a politician or an insider does not by itself imply any wrongdoing.
New to these filings? Read how to read a Form 4, how Congress trades are disclosed and what insider cluster buying means. Sources and limits are on the Methodology page.
See these filings as they land
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