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, Q3 2025
Institutional positions in Mercury Systems Inc as of Sep 30, 2025. 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
- 326
- +43 vs. Q2 2025
- Shares held
- 64.9M
- −161.8K (−0.2%) vs. Q2 2025
- Total value
- $5.02B
- +$1.52B (+43.4%) vs. Q2 2025
- New holders
- 69
- 108 more added
- Sold out
- 26
- 109 more reduced
2 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Mercury Systems Inc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Two Sigma Advisers, LP | 21,100 | $1.63M | 0.00% | −1,900−8.3% | Reduced |
| Millennium Management LLC | 22,350 | $1.73M | 0.00% | −486,068−95.6% | Reduced |
| Franklin Resources Inc | 23,991 | $1.86M | 0.00% | +6,281+35.5% | Added |
| Cresset Asset Management, LLC | 24,042 | $1.86M | 0.01% | +24,042 | New |
| Legato Capital Management LLC | 24,085 | $1.86M | 0.20% | 00.0% | Unchanged |
| Louisiana State Employees Retirement System | 24,200 | $1.87M | 0.03% | +500+2.1% | Added |
| Archon Capital Management LLC | 24,600 | $1.90M | 1.13% | −25,000−50.4% | Reduced |
| Creative Planning | 24,814 | $1.92M | 0.00% | +8,975+56.7% | Added |
| Illinois Municipal Retirement Fund | 24,996 | $1.93M | 0.02% | −786−3.0% | Reduced |
| Trexquant Investment LP | 25,139 | $1.95M | 0.02% | −97,182−79.4% | Reduced |
| Qube Research & Technologies Ltd | 25,530 | $1.98M | 0.00% | +25,530 | New |
| Jane Street Group, LLC | 25,641 | $1.98M | 0.00% | +25,641 | New |
| Manufacturers Life Insurance Company, The | 27,520 | $2.13M | 0.00% | −1,262−4.4% | Reduced |
| Hennion & Walsh Asset Management, Inc. | 27,796 | $2.15M | 0.08% | +11,989+75.8% | Added |
| Moody National Bank Trust Division | 29,828 | $2.31M | 0.19% | −11,186−27.3% | Reduced |
| Oppenheimer & Co Inc | 30,018 | $2.32M | 0.03% | −2,767−8.4% | Reduced |
| State of Alaska, Department of Revenue | 30,077 | $2.33M | 0.02% | −155−0.5% | Reduced |
| Pathstone Holdings, LLC | 30,405 | $2.35M | 0.01% | +5,536+22.3% | Added |
| TD Asset Management Inc | 30,954 | $2.40M | 0.00% | +19,236+164.2% | Added |
| Edgestream Partners, L.P. | 31,098 | $2.41M | 0.07% | +31,098 | New |
| Bouvel Investment Partners, LLC | 31,459 | $2.43M | 0.75% | +651+2.1% | Added |
| Voya Investment Management LLC | 32,114 | $2.49M | 0.00% | −1,152−3.5% | Reduced |
| State of New Jersey Common Pension Fund D | 32,405 | $2.51M | 0.01% | +32,405 | New |
| HRT Financial LP | 33,332 | $2.58M | 0.01% | +33,332 | New |
| AQR Capital Management LLC | 34,329 | $2.59M | 0.00% | +1,422+4.3% | Added |
| Intech Investment Management LLC | 33,591 | $2.60M | 0.02% | −1,996−5.6% | Reduced |
| Great Lakes Advisors, LLC | 34,617 | $2.68M | 0.02% | −34,868−50.2% | Reduced |
| Sterling Capital Management LLC | 34,661 | $2.68M | 0.04% | +10,661+44.4% | Added |
| Thrivent Financial for Lutherans | 38,038 | $2.94M | 0.01% | +690+1.8% | Added |
| Ironwood Investment Management LLC | 39,448 | $3.05M | 1.33% | −222−0.6% | Reduced |
| Tudor Investment Corp Et Al | 39,923 | $3.09M | 0.02% | −51,511−56.3% | Reduced |
| Great West Life Assurance Co | 44,041 | $3.31M | 0.00% | +1,595+3.8% | Added |
| Portolan Capital Management, LLC | 44,864 | $3.47M | 0.19% | +44,864 | New |
| Deutsche Bank AG | 45,098 | $3.49M | 0.00% | +4,794+11.9% | Added |
| California State Teachers Retirement System | 48,527 | $3.76M | 0.00% | +1,679+3.6% | Added |
| Zions Bancorporation, National Association | 50,696 | $3.92M | 0.19% | −7,590−13.0% | Reduced |
| LPL Financial LLC | 51,515 | $3.99M | 0.00% | −76,741−59.8% | Reduced |
| Quantinno Capital Management LP | 52,731 | $4.08M | 0.01% | +14,238+37.0% | Added |
| Rice Hall James & Associates, LLC | 53,340 | $4.13M | 0.23% | −20,859−28.1% | Reduced |
| Calamos Advisors LLC | 54,033 | $4.18M | 0.02% | −921−1.7% | Reduced |
| D. E. Shaw & Co., Inc. | 54,109 | $4.19M | 0.00% | −18,815−25.8% | Reduced |
| Cerity Partners LLC | 55,802 | $4.32M | 0.01% | −1,750−3.0% | Reduced |
| EAM Investors, LLC | 58,309 | $4.44M | 0.51% | +58,309 | New |
| Alliancebernstein L.P. | 57,425 | $4.44M | 0.00% | −2,320−3.9% | Reduced |
| B. Metzler seel. Sohn & Co. AG | 57,891 | $4.48M | 0.04% | 00.0% | Unchanged |
| Natixis Advisors, L.P. | 58,558 | $4.53M | 0.01% | +1,211+2.1% | Added |
| Citigroup Inc | 59,058 | $4.57M | 0.00% | −30,993−34.4% | Reduced |
| Pier Capital, LLC | 59,567 | $4.61M | 0.72% | +59,567 | New |
| New York State Teachers Retirement System | 59,911 | $4.64M | 0.01% | 00.0% | Unchanged |
| Wells Fargo & Company | 62,507 | $4.84M | 0.00% | +11,746+23.1% | Added |
| State of Wisconsin Investment Board | 64,562 | $5.00M | 0.01% | +3,447+5.6% | Added |
| Two Sigma Investments, LP | 73,035 | $5.65M | 0.01% | −81,364−52.7% | Reduced |
| Blair William & Co | 80,520 | $6.23M | 0.02% | −44,527−35.6% | Reduced |
| Lisanti Capital Growth, LLC | 97,625 | $7.56M | 1.85% | +3,420+3.6% | Added |
| Swiss National Bank | 98,400 | $7.62M | 0.00% | +1,500+1.5% | Added |
| Russell Investments Group, Ltd. | 100,481 | $7.78M | 0.01% | +15,962+18.9% | Added |
| Castleark Management LLC | 101,468 | $7.85M | 0.22% | +8,668+9.3% | Added |
| Select Equity Group, L.P. | 103,848 | $8.04M | 0.03% | +20,078+24.0% | Added |
| King Luther Capital Management Corp | 104,245 | $8.07M | 0.03% | −3,198−3.0% | Reduced |
| UBS Asset Management Americas Inc | 114,728 | $8.88M | 0.00% | −104,279−47.6% | Reduced |
| Vident Advisory, LLC | 118,506 | $9.17M | 0.09% | +15,755+15.3% | Added |
| Prudential Financial Inc | 127,220 | $9.85M | 0.01% | −65,955−34.1% | Reduced |
| New York State Common Retirement Fund | 130,591 | $10.1M | 0.01% | +114,334+703.3% | Added |
| 13D Management LLC | 137,012 | $10.6M | 10.17% | 00.0% | Unchanged |
| Barclays PLC | 146,871 | $11.4M | 0.00% | −46,597−24.1% | Reduced |
| Macquarie Group Ltd | 148,351 | $11.5M | 0.01% | −9,119−5.8% | Reduced |
| Citadel Advisors LLC | 150,574 | $11.7M | 0.01% | −146,403−49.3% | Reduced |
| Rhumbline Advisers | 156,605 | $12.1M | 0.01% | +859+0.6% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 162,786 | $12.6M | 0.04% | +132,785+442.6% | Added |
| Legal & General Group Plc | 165,476 | $12.8M | 0.00% | +1,233+0.8% | Added |
| JPMorgan Chase & Co | 181,773 | $14.1M | 0.00% | +56,800+45.4% | Added |
| Penn Capital Management Co Inc | 184,154 | $14.3M | 1.10% | +184,154 | New |
| Raymond James Financial Inc | 192,889 | $14.9M | 0.00% | +26,411+15.9% | Added |
| Public Sector Pension Investment Board | 205,644 | $15.9M | 0.06% | +32,443+18.7% | Added |
| Royce & Associates LP | 208,459 | $16.1M | 0.16% | −27,000−11.5% | Reduced |
| Driehaus Capital Management LLC | 221,012 | $17.1M | 0.12% | +2,666+1.2% | Added |
| Comerica Bank | 221,865 | $17.2M | 0.06% | −21,405−8.8% | Reduced |
| Mutual of America Capital Management LLC | 225,374 | $17.4M | 0.18% | +67,518+42.8% | Added |
| UBS Group AG | 240,349 | $18.6M | 0.00% | +72,017+42.8% | Added |
| Axiom Investors LLC | 247,828 | $19.2M | 0.14% | +105,720+74.4% | Added |
| Bank of America Corp | 252,487 | $19.5M | 0.00% | −48,053−16.0% | Reduced |
| Bessemer Group Inc | 274,302 | $21.2M | 0.03% | +274,070+118,133.6% | Added |
| Ameriprise Financial Inc | 280,388 | $21.7M | 0.00% | −135,421−32.6% | Reduced |
| Principal Financial Group Inc | 283,280 | $21.9M | 0.01% | +681+0.2% | Added |
| MetLife Investment Management | 306,906 | $23.8M | 0.11% | −86,107−21.9% | Reduced |
| Aristotle Capital Boston, LLC | 307,038 | $23.8M | 1.22% | −8,512−2.7% | Reduced |
| Bank of New York Mellon Corp | 311,121 | $24.1M | 0.00% | −1,701−0.5% | Reduced |
| SEI Investments Co | 311,561 | $24.1M | 0.03% | +120,962+63.5% | Added |
| Emerald Mutual Fund Advisers Trust | 336,058 | $26.0M | 1.34% | +72,840+27.7% | Added |
| WCM Investment Management, LLC | 350,407 | $26.4M | 0.05% | −4,277−1.2% | Reduced |
| Nuveen, LLC | 360,009 | $27.9M | 0.01% | +176,260+95.9% | Added |
| Silvercrest Asset Management Group LLC | 386,758 | $29.9M | 0.20% | −361−0.1% | Reduced |
| Oberweis Asset Management Inc | 398,500 | $30.8M | 1.18% | 00.0% | Unchanged |
| Staley Capital Advisers Inc | 411,310 | $31.8M | 1.31% | −58,820−12.5% | Reduced |
| Emerald Advisers, LLC | 533,092 | $41.3M | 1.32% | +76,379+16.7% | Added |
| Jennison Associates LLC | 536,407 | $41.5M | 0.02% | +536,407 | New |
| Northern Trust Corp | 549,751 | $42.6M | 0.01% | +2,829+0.5% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 595,593 | $46.1M | 0.07% | +172,110+40.6% | Added |
| Charles Schwab Investment Management Inc | 636,598 | $49.3M | 0.01% | −4,352−0.7% | Reduced |
| Kennedy Capital Management, Inc. | 657,013 | $50.9M | 1.12% | +126,080+23.7% | Added |