SEC Form 4 · accession 0001049521-26-000050
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
William L Ballhaus
Officer — Chairman, President & CEO · Director
Period of report
Aug 17, 2026
Accepted (ET)
Aug 19, 2026 · 6:24 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 | 3,536 | $109.9509 | D | 301,153 | D | |
| Common StockF1,F2 | Aug 18, 2026 | S | 24,144 | $111.3577 | D | 277,009 | D | |
| Common Stock | holding | — | — | — | 1,403 | I | 401K Plan | |
| Common Stock | holding | — | — | — | 7,066 | I | By Milestone Road Holdings, LLC |
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.