Who Owns MERCURY SYS INC COM (MRCY)? -- Institutional Holders (2026-06-30)
432 institutions reported holding $8.13B of MERCURY SYS INC COM (MRCY) in SEC 13F filings for 2026-06-30. Largest institutional holders: BlackRock, Inc. ($1.15B), VANGUARD GROUP INC ($723.6M), JANA Partners Management, LP ($484.3M), STATE STREET CORP ($418.0M), Invesco Ltd. ($326.6M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|
| 1 | BlackRock, Inc. | $1.15B | 9.4M | Added |
| 2 | VANGUARD GROUP INC | $723.6M | 5.9M | Added |
| 3 | JANA Partners Management, LP | $484.3M | 4.0M | Trimmed |
| 4 | STATE STREET CORP | $418.0M | 3.4M | Trimmed |
| 5 | Invesco Ltd. | $326.6M | 2.7M | Added |
| 6 | FMR LLC | $225.3M | 1.8M | Added |
| 7 | T. Rowe Price Investment Management, Inc. | $195.2M | 1.6M | Added |
| 8 | GOLDMAN SACHS GROUP INC | $192.8M | 1.6M | Added |
| 9 | Conestoga Capital Advisors, LLC | $181.9M | 1.5M | Trimmed |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | $178.6M | 1.5M | Trimmed |
| 11 | FIRST TRUST ADVISORS LP | $158.9M | 1.3M | Added |
| 12 | PRICE T ROWE ASSOCIATES INC /MD/ | $157.3M | 1.3M | Added |
| 13 | DIMENSIONAL FUND ADVISORS LP | $141.4M | 1.2M | Trimmed |
| 14 | SEGALL BRYANT & HAMILL, LLC | $125.9M | 1.0M | Added |
| 15 | Fisher Asset Management, LLC | $115.5M | 944,069 | Trimmed |
| 16 | FRANKLIN RESOURCES INC | $103.6M | 846,732 | Added |
| 17 | NEUBERGER BERMAN GROUP LLC | $102.1M | 841,556 | Trimmed |
| 18 | MORGAN STANLEY | $99.3M | 811,565 | Added |
| 19 | WELLINGTON MANAGEMENT GROUP LLP | $94.9M | 775,502 | Added |
| 20 | VAN ECK ASSOCIATES CORP | $93.3M | 762,994 | Trimmed |
| 21 | RAYMOND JAMES FINANCIAL INC | $91.6M | 748,808 | Trimmed |
| 22 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $87.6M | 715,977 | Trimmed |
| 23 | LOOMIS SAYLES & CO L P | $83.3M | 681,142 | Added |
| 24 | AMERICAN CENTURY COMPANIES INC | $81.3M | 664,960 | Added |
| 25 | LORD, ABBETT & CO. LLC | $80.9M | 661,714 | Added |
Source: SEC Form 13F filings · as of 2026-06-30