Mercury Systems Inc. (MRCY) Ownership & Trading Activity
Institutional holders, insider transactions, and congressional trades for MRCY. 13F holdings as of 2026-06-30.
Top Institutional Holders
| Institution | Shares | Value | Change |
|---|---|---|---|
| BlackRock | 9,370,902 | $1.1B | INCREASED |
| Vanguard | 5,923,187 | $725M | INCREASED |
| Jana Partners Management | 3,958,849 | $484M | DECREASED |
| State Street | 3,418,290 | $418M | DECREASED |
| T. Rowe Price | 2,881,280 | $352M | INCREASED |
Recent Insider Trades
| Insider | Type | Shares | Value | Date |
|---|---|---|---|---|
| Stuart Kupinsky (EVP, CLO & Corp Sec) | SELL | 1,000 | $87K | 2026-09-21 |
| Steven Ratner (EVP, CHRO) | SELL | 4,000 | $338K | 2026-09-03 |
| William L Ballhaus (Chairman, President & CEO) | EXERCISE | 68,476 | $3M | 2026-08-25 |
| William L Ballhaus (Chairman, President & CEO) | EXERCISE | 153,676 | $7M | 2026-08-25 |
| William L Ballhaus (Chairman, President & CEO) | SELL | 10,814 | $970K | 2026-08-25 |
Full institutional holdings, insider history, and congressional trades for Mercury Systems Inc. on SentiSense.