SEC Form 4 · accession 0001049521-26-000052
MERCURY SYSTEMS INC · MRCY
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
A later amendment supersedes this filing — read the amendment. The figures below are kept as originally reported (version chain, not an overwrite).
Reporting owner
Stuart Kupinsky
Officer — EVP, CLO & Corp Sec
Period of report
Aug 17, 2026
Accepted (ET)
Aug 19, 2026 · 6:26 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001049521
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF1,F2 | Aug 17, 2026 | S | 1,195 | $109.9509 | D | 59,838 | D | |
| Common StockF1,F2 | Aug 18, 2026 | S | 1,178 | $111.3577 | D | 58,660 | D | |
| Common Stock | holding | — | — | — | 1,233 | I | 401K Plan |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1Represents shares sold as part of a sell-to-cover program to satisfy tax withholding obligations upon the vesting of stock awards.
- F2Represents the per share price attributed to sales of shares on behalf of all participants under the sell-to-cover program on the transaction date indicated.