Mercury Systems Inc. (MRCY) Ownership & Trading Activity
Institutional holders, insider transactions, and congressional trades for MRCY. 13F holdings as of 2026-06-30.
In 13F filings for the quarter ended June 30, 2026, 380 institutions reported holding MRCY, with 65.6 million shares worth $8.0 billion in aggregate.
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 |
|---|---|---|---|---|
| Scott Ostfeld (Director) | AWARD | 2,348 | 2026-10-28 | |
| Orlando D Carvalho (Director) | AWARD | 2,348 | 2026-10-28 | |
| Lisa S Disbrow (Director) | AWARD | 2,348 | 2026-10-28 | |
| Howard L Lance (Director) | AWARD | 2,348 | 2026-10-28 | |
| Jean A Bua (Director) | AWARD | 2,348 | 2026-10-28 |
Full institutional holdings, insider history, and congressional trades for Mercury Systems Inc. on SentiSense.