According to SEC filings for the period ending December 2025, Mercury Systems Inc (NASDAQ:MRCY) is held by 9 institutional firms.
| Owner Name | Date | Shares Held | Change (QoQ) | Change (%) | Value (USD) |
|---|---|---|---|---|---|
| BlackRock, Inc. | 30 Sep, 2025 | 8,477,158 | 228,189 | 2.77% | $656,131,994.00 |
| JANA Partners Management, LP | 30 Sep, 2025 | 5,959,481 | -793,932 | -11.76% | $461,263,829.00 |
| VANGUARD GROUP INC | 30 Sep, 2025 | 5,731,033 | 221,093 | 4.01% | $443,581,953.00 |
| STATE STREET CORP | 30 Sep, 2025 | 3,055,358 | -191,215 | -5.89% | $236,484,709.00 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 30 Sep, 2025 | 2,487,957 | -2,207,726 | -47.02% | $192,567,872.00 |
| Conestoga Capital Advisors, LLC | 30 Sep, 2025 | 2,279,909 | -279,026 | -10.90% | $176,464,957.00 |
| DIMENSIONAL FUND ADVISORS LP | 30 Sep, 2025 | 1,743,814 | -87,561 | -4.78% | $134,960,384.00 |
| FIRST TRUST ADVISORS LP | 30 Sep, 2025 | 1,532,822 | 751,813 | 96.26% | $118,640,422.00 |
| Invesco Ltd. | 30 Sep, 2025 | 1,527,443 | 943,736 | 161.68% | $118,224,089.00 |
| T. Rowe Price Investment Management, Inc. | 30 Sep, 2025 | 1,521,669 | 552,854 | 57.06% | $117,778.00 |
| FMR LLC | 30 Sep, 2025 | 1,483,473 | 314,381 | 26.89% | $114,820,778.00 |
| GEODE CAPITAL MANAGEMENT, LLC | 30 Sep, 2025 | 1,321,485 | 56,475 | 4.46% | $102,296,019.00 |
| BAMCO INC /NY/ | 30 Sep, 2025 | 1,295,284 | 60,483 | 4.90% | $100,254,982.00 |
| GOLDMAN SACHS GROUP INC | 30 Sep, 2025 | 1,239,435 | 182,521 | 17.27% | $95,932,269.00 |
| Neuberger Berman Group LLC | 30 Sep, 2025 | 1,046,469 | -9,951 | -0.94% | $80,899,847.00 |
| LOOMIS SAYLES & CO L P | 30 Sep, 2025 | 884,615 | -107,995 | -10.88% | $68,469,201.00 |
| MORGAN STANLEY | 30 Sep, 2025 | 876,397 | -51,774 | -5.58% | $67,833,189.00 |
| Fisher Asset Management, LLC | 30 Sep, 2025 | 875,279 | 153,946 | 21.34% | $67,746,594.00 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 30 Sep, 2025 | 866,077 | 822,089 | 1,868.89% | $67,035.00 |
| SNYDER CAPITAL MANAGEMENT L P | 30 Sep, 2025 | 781,404 | -176,498 | -18.43% | $60,480,670.00 |