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; 393 institutions reported holding it in 13F filings for Q2 2026, worth $8.02B 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 | 393 | $8.02B |
| 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 |
|---|---|---|---|---|---|
| Nuveen, LLC | 231,784 | $16.9M | 0.00% | −119,346−34.0% | Reduced |
| UBS Group AG | 233,071 | $17.0M | 0.00% | −18,158−7.2% | Reduced |
| JPMorgan Chase & Co | 247,887 | $17.3M | 0.00% | +138,755+127.1% | Added |
| Principal Financial Group Inc | 257,100 | $18.7M | 0.01% | −5,194−2.0% | Reduced |
| Aristotle Capital Boston, LLC | 266,417 | $19.5M | 1.21% | −12,900−4.6% | Reduced |
| Fifth Third Bancorp | 267,101 | $19.5M | 0.04% | +265,905+22,232.9% | Added |
| Nomura Asset Management International Inc. | 288,540 | $21.0M | 0.04% | +109,859+61.5% | Added |
| Citadel Advisors LLC | 292,866 | $21.4M | 0.02% | +188,490+180.6% | Added |
| Driehaus Capital Management LLC | 294,628 | $21.5M | 0.16% | −10,098−3.3% | Reduced |
| Bank of America Corp | 294,918 | $21.5M | 0.00% | +48,181+19.5% | Added |
| MetLife Investment Management | 295,739 | $21.6M | 0.11% | +27,377+10.2% | Added |
| Silvercrest Asset Management Group LLC | 310,168 | $22.6M | 0.16% | +7,911+2.6% | Added |
| Bank of New York Mellon Corp | 314,399 | $22.9M | 0.00% | −7,901−2.5% | Reduced |
| William Blair Investment Management, LLC | 327,288 | $23.9M | 0.08% | −656,985−66.7% | Reduced |
| Vanguard Fiduciary Trust Co | 349,225 | $25.5M | 0.01% | +349,225 | New |
| Artisan Partners Limited Partnership | 354,265 | $25.8M | 0.04% | +354,265 | New |
| SEI Investments Co | 370,992 | $27.0M | 0.02% | −7,365−1.9% | Reduced |
| Emerald Mutual Fund Advisers Trust | 375,472 | $27.4M | 1.33% | +39,414+11.7% | Added |
| Oberweis Asset Management Inc | 391,023 | $28.5M | 0.84% | −23,017−5.6% | Reduced |
| Bessemer Group Inc | 449,689 | $32.8M | 0.05% | +50,193+12.6% | Added |
| Franklin Resources Inc | 453,633 | $33.1M | 0.01% | +245,184+117.6% | Added |
| Royal Bank of Canada | 532,687 | $38.8M | 0.01% | −111,445−17.3% | Reduced |
| Northern Trust Corp | 548,063 | $40.0M | 0.01% | +30,280+5.8% | Added |
| Snyder Capital Management L P | 580,654 | $42.3M | 0.82% | −167,882−22.4% | Reduced |
| American Century Companies Inc | 582,895 | $42.5M | 0.02% | +343,963+144.0% | Added |
| Allspring Global Investments Holdings, LLC | 573,456 | $42.9M | 0.07% | −180,239−23.9% | Reduced |
| Kennedy Capital Management, Inc. | 589,249 | $43.0M | 0.91% | −81,240−12.1% | Reduced |
| Emerald Advisers, LLC | 595,314 | $43.4M | 1.37% | +64,199+12.1% | Added |
| Voya Investment Management LLC | 609,256 | $44.4M | 0.05% | +97,932+19.2% | Added |
| Charles Schwab Investment Management Inc | 635,970 | $46.4M | 0.01% | −654−0.1% | Reduced |
| Lord, Abbett & Co. LLC | 642,466 | $46.8M | 0.15% | +26,658+4.3% | Added |
| Bamco Inc | 645,066 | $47.0M | 0.14% | −190,757−22.8% | Reduced |
| Loomis Sayles & Co L P | 645,932 | $47.1M | 0.06% | −205,885−24.2% | Reduced |
| Morgan Stanley | 671,331 | $48.9M | 0.00% | −59,345−8.1% | Reduced |
| Jennison Associates LLC | 688,114 | $50.2M | 0.03% | +238,147+52.9% | Added |
| Wellington Management Group LLP | 755,525 | $55.1M | 0.01% | +755,525 | New |
| Raymond James Financial Inc | 794,029 | $56.3M | 0.02% | +85,975+12.1% | Added |
| Van Eck Associates Corp | 851,145 | $62.1M | 0.05% | +125,758+17.3% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 859,447 | $62.7M | 0.08% | +260,823+43.6% | Added |
| FMR LLC | 903,668 | $65.9M | 0.00% | −248,524−21.6% | Reduced |
| Neuberger Berman Group LLC | 910,418 | $66.3M | 0.05% | −119,685−11.6% | Reduced |
| Segall Bryant & Hamill, LLC | 934,824 | $68.2M | 0.98% | +298,298+46.9% | Added |
| Fisher Asset Management, LLC | 980,367 | $71.5M | 0.02% | +119,984+13.9% | Added |
| Ameriprise Financial Inc | 991,808 | $72.3M | 0.02% | −297,877−23.1% | Reduced |
| Price T Rowe Associates Inc | 1,028,609 | $75.0M | 0.01% | +160,939+18.5% | Added |
| First Trust Advisors LP | 1,160,775 | $84.6M | 0.06% | −118,609−9.3% | Reduced |
| Goldman Sachs Group Inc | 1,201,112 | $87.6M | 0.01% | +44,715+3.9% | Added |
| Dimensional Fund Advisors LP | 1,227,975 | $89.5M | 0.02% | −247,846−16.8% | Reduced |
| Geode Capital Management, LLC | 1,525,716 | $111.3M | 0.01% | +157,057+11.5% | Added |
| T. Rowe Price Investment Management, Inc. | 1,579,832 | $115.2M | 0.08% | +36,981+2.4% | Added |
| Conestoga Capital Advisors, LLC | 1,918,591 | $139.9M | 2.79% | −256,216−11.8% | Reduced |
| Vanguard Capital Management LLC | 2,403,818 | $175.3M | 0.00% | +2,403,818 | New |
| Invesco Ltd. | 2,441,578 | $178.0M | 0.02% | +530,836+27.8% | Added |
| Vanguard Portfolio Management LLC | 2,910,904 | $212.2M | 0.01% | +2,910,904 | New |
| State Street Corp | 3,865,719 | $281.8M | 0.01% | +442,119+12.9% | Added |
| JANA Partners Management, LP | 4,107,424 | $299.5M | 17.96% | −852,057−17.2% | Reduced |
| BlackRock, Inc. | 8,920,325 | $650.4M | 0.01% | +308,687+3.6% | Added |
| Staley Capital Advisers Inc | 0 | $0 | 0.00% | −161,100−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −69,178−100.0% | Sold out |
| Portolan Capital Management, LLC | 0 | $0 | 0.00% | −46,348−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −36,821−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −28,194−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −28,051−100.0% | Sold out |
| Integrated Quantitative Investments LLC | 0 | $0 | 0.00% | −23,036−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −21,100−100.0% | Sold out |
| Sandler Capital Management | 0 | $0 | 0.00% | −17,800−100.0% | Sold out |
| Bridgewater Associates, LP | 0 | $0 | 0.00% | −15,469−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −14,900−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −12,182−100.0% | Sold out |
| Neo Ivy Capital Management | 0 | $0 | 0.00% | −10,960−100.0% | Sold out |
| Altfest L J & Co Inc | 0 | $0 | 0.00% | −10,898−100.0% | Sold out |
| Yarbrough Capital, LLC | 0 | $0 | 0.00% | −9,991−100.0% | Sold out |
| Freestone Grove Partners LP | 0 | $0 | 0.00% | −8,605−100.0% | Sold out |
| Guggenheim Capital LLC | 0 | $0 | 0.00% | −8,297−100.0% | Sold out |
| Colony Group, LLC | 0 | $0 | 0.00% | −7,134−100.0% | Sold out |
| Canada Pension Plan Investment Board | 0 | $0 | 0.00% | −6,600−100.0% | Sold out |
| Fuller & Thaler Asset Management, Inc. | 0 | $0 | 0.00% | −5,371−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −5,121−100.0% | Sold out |
| Grimes & Company, Inc. | 0 | $0 | 0.00% | −4,994−100.0% | Sold out |
| EntryPoint Capital, LLC | 0 | $0 | 0.00% | −4,677−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −3,953−100.0% | Sold out |
| Pacer Advisors, Inc. | 0 | $0 | 0.00% | −3,814−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −3,386−100.0% | Sold out |
| Mackenzie Financial Corp | 0 | $0 | 0.00% | −3,263−100.0% | Sold out |
| Teacher Retirement System of Texas | 0 | $0 | 0.00% | −3,211−100.0% | Sold out |
| Forum Financial Management, LP | 0 | $0 | 0.00% | −3,107−100.0% | Sold out |
| Marex Group plc | 0 | $0 | 0.00% | −3,038−100.0% | Sold out |
| Atria Investments LLC | 0 | $0 | 0.00% | −2,909−100.0% | Sold out |
| Johnson Investment Counsel Inc | 0 | $0 | 0.00% | −2,905−100.0% | Sold out |
| Kestra Advisory Services, LLC | 0 | $0 | 0.00% | −2,250−100.0% | Sold out |
| Hollencrest Capital Management | 0 | $0 | 0.00% | −500−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −401−100.0% | Sold out |
| Aster Capital Management (DIFC) Ltd | 0 | $0 | 0.00% | −141−100.0% | Sold out |
| Hillsdale Investment Management Inc. | 0 | $0 | 0.00% | −120−100.0% | Sold out |
| Clearstead Advisors, LLC | 0 | $0 | 0.00% | −27−100.0% | Sold out |
| Advocate Investing Services LLC | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| Flagship Harbor Advisors, LLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Elyxium Wealth, LLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| TD Capital Management LLC | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |