Updated Jul 16, 2026 · Last SEC filing 2026-05-27
MERCURY SYSTEMS INC (MRCY) has filed 5 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-05-27. 1 Form 8-K material event filings were reported by MRCY in the last 90 days. 2 Form 144 notices of proposed sale were filed for MRCY stock. InsiderAlpha tracks every MRCY SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0001049521 |
|---|
| Form 4 filings (90d) | 5 |
|---|---|
| Form 8-K filings (90d) | 1 |
| Form 144 notices (90d) | 2 |
| Latest Form 4 filing | 2026-05-27 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| LANCE HOWARD L | Director | S — Open-market sale | 1.2K | $98.50 | $123K | SEC | |
| LANCE HOWARD L | Director | S — Open-market sale | 8.0K | $99.95 | $800K | SEC | |
| Carvalho Orlando D | Director | S — Open-market sale | 7.0K | $89.36 | $626K | SEC | |
| Ratner Steven | EVP, CHRO | S — Open-market sale | 2.0K | $92.46 | $185K | SEC | |
| Farnsworth David E. | EVP, CFO | S — Open-market sale | 3.6K | $84.87 | $308K | SEC | |
| Nearhos Barry R | Director | A — Grant or award | 245 | $0.00 | — | SEC | |
| Ratner Steven | EVP, CHRO | A — Grant or award | 437 | $0.00 | — | SEC | |
| JANA Partners Management, LP | Director | S — Open-market sale | 100.9K | $89.68 | $9.05M | SEC | |
| JANA Partners Management, LP | Director | S — Open-market sale | 168.6K | $90.12 | $15.20M | SEC | |
| JANA Partners Management, LP | Director | S — Open-market sale | 182.5K | $94.05 | $17.17M | SEC | |
| LANCE HOWARD L | Director | S — Open-market sale | 4.8K | $88.98 | $430K | SEC | |
| Munro Douglas | SVP, CAO | S — Open-market sale | 582 | $83.56 | $49K | SEC | |
| KUPINSKY STUART | EVP, CLO & Corp Sec | S — Open-market sale | 2.3K | $83.56 | $191K | SEC | |
| JANA Partners Management, LP | Director | S — Open-market sale | 400.0K | $81.00 | $32.40M | SEC | |
| Nearhos Barry R | Director | A — Grant or award | 474 | $0.00 | — | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for MERCURY SYSTEMS INC (MRCY). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| LANCE HOWARD L | 2 | $923K |
| Nearhos Barry R | 1 | — |
| Farnsworth David E. | 1 | $308K |
| Ratner Steven | 1 | $185K |
| Carvalho Orlando D | 1 | $626K |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in MRCY insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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