Mercury Systems Inc
MRCY- Exchange
- Nasdaq
- Industry
- Electronic Components & Accessories
- SEC CIK
- 0001049521
In the last 90 days, Mercury Systems Inc insiders filed 0 open-market purchases and 16 sales; 392 institutions reported holding it in 13F filings for Q2 2026, worth $8.01B in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in Mercury Systems Inc as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 357
- +16 vs. Q4 2025
- Shares held
- 65.2M
- +6.52M (+11.1%) vs. Q4 2025
- Total value
- $4.75B
- +$463.1M (+10.8%) vs. Q4 2025
- New holders
- 58
- 134 more added
- Sold out
- 42
- 120 more reduced
6 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MRCY on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 392 | $8.01B |
| Q1 2026 | 357 | $4.75B |
| Q4 2025 | 347 | $4.72B |
| Q3 2025 | 326 | $5.02B |
| Q2 2025 | 285 | $3.50B |
| Q1 2025 | 253 | $2.72B |
| Q4 2024 | 243 | $2.66B |
| Q3 2024 | 245 | $2.33B |
| Q2 2024 | 232 | $1.75B |
| Q1 2024 | 222 | $1.84B |
| Q4 2023 | 219 | $2.23B |
| Q3 2023 | 217 | $2.22B |
| Q2 2023 | 236 | $1.95B |
| Q1 2023 | 245 | $2.94B |
| Q4 2022 | 236 | $2.61B |
| Q3 2022 | 235 | $2.33B |
| Q2 2022 | 254 | $3.65B |
| Q1 2022 | 253 | $3.77B |
| Q4 2021 | 252 | $3.14B |
| Q3 2021 | 251 | $2.51B |
| Q2 2021 | 255 | $3.48B |
| Q1 2021 | 282 | $3.75B |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Mercury Systems Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 8,920,325 | $650.4M | 0.01% | +308,687+3.6% | Added |
| JANA Partners Management, LP | 4,107,424 | $299.5M | 17.96% | −852,057−17.2% | Reduced |
| State Street Corp | 3,865,719 | $281.8M | 0.01% | +442,119+12.9% | Added |
| Vanguard Portfolio Management LLC | 2,910,904 | $212.2M | 0.01% | +2,910,904 | New |
| Invesco Ltd. | 2,441,578 | $178.0M | 0.02% | +530,836+27.8% | Added |
| Vanguard Capital Management LLC | 2,403,818 | $175.3M | 0.00% | +2,403,818 | New |
| Conestoga Capital Advisors, LLC | 1,918,591 | $139.9M | 2.79% | −256,216−11.8% | Reduced |
| T. Rowe Price Investment Management, Inc. | 1,579,832 | $115.2M | 0.08% | +36,981+2.4% | Added |
| Geode Capital Management, LLC | 1,525,716 | $111.3M | 0.01% | +157,057+11.5% | Added |
| Dimensional Fund Advisors LP | 1,227,975 | $89.5M | 0.02% | −247,846−16.8% | Reduced |
| Goldman Sachs Group Inc | 1,201,112 | $87.6M | 0.01% | +44,715+3.9% | Added |
| First Trust Advisors LP | 1,160,775 | $84.6M | 0.06% | −118,609−9.3% | Reduced |
| Price T Rowe Associates Inc | 1,028,609 | $75.0M | 0.01% | +160,939+18.5% | Added |
| Ameriprise Financial Inc | 991,808 | $72.3M | 0.02% | −297,877−23.1% | Reduced |
| Fisher Asset Management, LLC | 980,367 | $71.5M | 0.02% | +119,984+13.9% | Added |
| Segall Bryant & Hamill, LLC | 934,824 | $68.2M | 0.98% | +298,298+46.9% | Added |
| Neuberger Berman Group LLC | 910,418 | $66.3M | 0.05% | −119,685−11.6% | Reduced |
| FMR LLC | 903,668 | $65.9M | 0.00% | −248,524−21.6% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 859,447 | $62.7M | 0.08% | +260,823+43.6% | Added |
| Van Eck Associates Corp | 851,145 | $62.1M | 0.05% | +125,758+17.3% | Added |
| Raymond James Financial Inc | 794,029 | $56.3M | 0.02% | +85,975+12.1% | Added |
| Wellington Management Group LLP | 755,525 | $55.1M | 0.01% | +755,525 | New |
| Jennison Associates LLC | 688,114 | $50.2M | 0.03% | +238,147+52.9% | Added |
| Morgan Stanley | 671,331 | $48.9M | 0.00% | −59,345−8.1% | Reduced |
| Loomis Sayles & Co L P | 645,932 | $47.1M | 0.06% | −205,885−24.2% | Reduced |
| Bamco Inc | 645,066 | $47.0M | 0.14% | −190,757−22.8% | Reduced |
| Lord, Abbett & Co. LLC | 642,466 | $46.8M | 0.15% | +26,658+4.3% | Added |
| Charles Schwab Investment Management Inc | 635,970 | $46.4M | 0.01% | −654−0.1% | Reduced |
| Voya Investment Management LLC | 609,256 | $44.4M | 0.05% | +97,932+19.2% | Added |
| Emerald Advisers, LLC | 595,314 | $43.4M | 1.37% | +64,199+12.1% | Added |
| Kennedy Capital Management, Inc. | 589,249 | $43.0M | 0.91% | −81,240−12.1% | Reduced |
| Allspring Global Investments Holdings, LLC | 573,456 | $42.9M | 0.07% | −180,239−23.9% | Reduced |
| American Century Companies Inc | 582,895 | $42.5M | 0.02% | +343,963+144.0% | Added |
| Snyder Capital Management L P | 580,654 | $42.3M | 0.82% | −167,882−22.4% | Reduced |
| Northern Trust Corp | 548,063 | $40.0M | 0.01% | +30,280+5.8% | Added |
| Royal Bank of Canada | 532,687 | $38.8M | 0.01% | −111,445−17.3% | Reduced |
| Franklin Resources Inc | 453,633 | $33.1M | 0.01% | +245,184+117.6% | Added |
| Bessemer Group Inc | 449,689 | $32.8M | 0.05% | +50,193+12.6% | Added |
| Oberweis Asset Management Inc | 391,023 | $28.5M | 0.84% | −23,017−5.6% | Reduced |
| Emerald Mutual Fund Advisers Trust | 375,472 | $27.4M | 1.33% | +39,414+11.7% | Added |
| SEI Investments Co | 370,992 | $27.0M | 0.02% | −7,365−1.9% | Reduced |
| Artisan Partners Limited Partnership | 354,265 | $25.8M | 0.04% | +354,265 | New |
| Vanguard Fiduciary Trust Co | 349,225 | $25.5M | 0.01% | +349,225 | New |
| William Blair Investment Management, LLC | 327,288 | $23.9M | 0.08% | −656,985−66.7% | Reduced |
| Bank of New York Mellon Corp | 314,399 | $22.9M | 0.00% | −7,901−2.5% | Reduced |
| Silvercrest Asset Management Group LLC | 310,168 | $22.6M | 0.16% | +7,911+2.6% | Added |
| MetLife Investment Management | 295,739 | $21.6M | 0.11% | +27,377+10.2% | Added |
| Bank of America Corp | 294,918 | $21.5M | 0.00% | +48,181+19.5% | Added |
| Driehaus Capital Management LLC | 294,628 | $21.5M | 0.16% | −10,098−3.3% | Reduced |
| Citadel Advisors LLC | 292,866 | $21.4M | 0.02% | +188,490+180.6% | Added |
| Nomura Asset Management International Inc. | 288,540 | $21.0M | 0.04% | +109,859+61.5% | Added |
| Fifth Third Bancorp | 267,101 | $19.5M | 0.04% | +265,905+22,232.9% | Added |
| Aristotle Capital Boston, LLC | 266,417 | $19.5M | 1.21% | −12,900−4.6% | Reduced |
| Principal Financial Group Inc | 257,100 | $18.7M | 0.01% | −5,194−2.0% | Reduced |
| JPMorgan Chase & Co | 247,887 | $17.3M | 0.00% | +138,755+127.1% | Added |
| UBS Group AG | 233,071 | $17.0M | 0.00% | −18,158−7.2% | Reduced |
| Nuveen, LLC | 231,784 | $16.9M | 0.00% | −119,346−34.0% | Reduced |
| Victory Capital Management Inc | 225,618 | $16.4M | 0.01% | −1,915−0.8% | Reduced |
| Royce & Associates LP | 219,980 | $16.0M | 0.16% | +22,901+11.6% | Added |
| Mutual of America Capital Management LLC | 211,752 | $15.4M | 0.18% | −7,611−3.5% | Reduced |
| Axiom Investors LLC | 211,068 | $15.4M | 0.17% | +27,924+15.2% | Added |
| WCM Investment Management, LLC | 219,324 | $15.3M | 0.03% | −45,565−17.2% | Reduced |
| King Luther Capital Management Corp | 210,037 | $15.3M | 0.07% | +7,394+3.6% | Added |
| New York State Common Retirement Fund | 193,627 | $14.1M | 0.02% | +54,345+39.0% | Added |
| Public Sector Pension Investment Board | 188,960 | $13.8M | 0.04% | +5,927+3.2% | Added |
| Two Sigma Investments, LP | 162,069 | $11.8M | 0.01% | +11,892+7.9% | Added |
| BNP Paribas Arbitrage, SA | 155,380 | $11.3M | 0.01% | −9,083−5.5% | Reduced |
| Freshford Capital Management, LLC | 154,065 | $11.2M | 5.61% | −28,360−15.5% | Reduced |
| Legal & General Group Plc | 151,645 | $11.1M | 0.00% | −9,229−5.7% | Reduced |
| Rhumbline Advisers | 144,794 | $10.6M | 0.01% | +2,455+1.7% | Added |
| Man Group plc | 144,724 | $10.6M | 0.02% | −47,309−24.6% | Reduced |
| Thrivent Financial for Lutherans | 139,857 | $10.2M | 0.02% | +103,516+284.8% | Added |
| Peregrine Capital Management LLC | 136,175 | $9.93M | 0.37% | −6,003−4.2% | Reduced |
| Penn Capital Management Co Inc | 127,789 | $9.34M | 0.72% | −64,094−33.4% | Reduced |
| Vident Advisory, LLC | 128,059 | $9.34M | 0.08% | +6,171+5.1% | Added |
| Deutsche Bank AG | 127,592 | $9.30M | 0.00% | −1,113−0.9% | Reduced |
| Wells Fargo & Company | 123,719 | $9.02M | 0.00% | −25,270−17.0% | Reduced |
| Heights Point Management, LP | 121,898 | $8.89M | 8.24% | −21,170−14.8% | Reduced |
| UBS Asset Management Americas Inc | 116,172 | $8.47M | 0.00% | +537+0.5% | Added |
| Qube Research & Technologies Ltd | 111,190 | $8.11M | 0.01% | +59,691+115.9% | Added |
| Russell Investments Group, Ltd. | 110,372 | $8.05M | 0.01% | +20,578+22.9% | Added |
| Agman Capital LLC | 108,632 | $7.92M | 6.31% | −14,204−11.6% | Reduced |
| Swiss National Bank | 106,900 | $7.79M | 0.00% | +400+0.4% | Added |
| Archon Capital Management LLC | 95,814 | $6.99M | 3.94% | +21,214+28.4% | Added |
| Edgestream Partners, L.P. | 88,208 | $6.43M | 0.21% | +41,038+87.0% | Added |
| Select Equity Group, L.P. | 83,466 | $6.09M | 0.03% | +5,645+7.3% | Added |
| Blair William & Co | 78,791 | $5.74M | 0.02% | −4,981−5.9% | Reduced |
| State of Wisconsin Investment Board | 76,505 | $5.58M | 0.01% | +20,317+36.2% | Added |
| Penserra Capital Management LLC | 68,713 | $5.01M | 0.06% | −11,852−14.7% | Reduced |
| Quantinno Capital Management LP | 65,977 | $4.81M | 0.01% | −629−0.9% | Reduced |
| AQR Capital Management LLC | 67,280 | $4.77M | 0.00% | +25,504+61.0% | Added |
| California State Teachers Retirement System | 63,570 | $4.63M | 0.00% | +12,346+24.1% | Added |
| Nordea Investment Management AB | 64,402 | $4.63M | 0.00% | −2,984−4.4% | Reduced |
| Alliancebernstein L.P. | 60,816 | $4.44M | 0.00% | 00.0% | Unchanged |
| Cerity Partners LLC | 60,763 | $4.43M | 0.01% | +1,207+2.0% | Added |
| 13D Management LLC | 60,462 | $4.41M | 6.83% | −43,300−41.7% | Reduced |
| Candelo Capital Management LP | 60,460 | $4.41M | 4.44% | −3,766−5.9% | Reduced |
| Barclays PLC | 57,822 | $4.22M | 0.00% | −91,350−61.2% | Reduced |
| Loup Funds, LLC | 56,624 | $4.13M | 2.62% | −10,837−16.1% | Reduced |
| Calamos Advisors LLC | 56,479 | $4.12M | 0.02% | +6,635+13.3% | Added |