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, Q4 2025
Institutional positions in Mercury Systems Inc as of Dec 31, 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
- 347
- +24 vs. Q3 2025
- Shares held
- 64.6M
- −244.2K (−0.4%) vs. Q3 2025
- Total value
- $4.72B
- −$300.3M (−6.0%) vs. Q3 2025
- New holders
- 55
- 127 more added
- Sold out
- 31
- 113 more reduced
3 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding Mercury Systems Inc; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Pier Capital, LLC | 56,727 | $4.14M | 0.66% | −2,840−4.8% | Reduced |
| State of Wisconsin Investment Board | 56,188 | $4.10M | 0.01% | −8,374−13.0% | Reduced |
| Citigroup Inc | 53,538 | $3.91M | 0.00% | −5,520−9.3% | Reduced |
| Qube Research & Technologies Ltd | 51,499 | $3.76M | 0.01% | +25,969+101.7% | Added |
| California State Teachers Retirement System | 51,224 | $3.74M | 0.00% | +2,697+5.6% | Added |
| Calamos Advisors LLC | 49,844 | $3.64M | 0.01% | −4,189−7.8% | Reduced |
| Rice Hall James & Associates, LLC | 48,817 | $3.56M | 0.20% | −4,523−8.5% | Reduced |
| Zions Bancorporation, National Association | 47,415 | $3.46M | 0.16% | −3,281−6.5% | Reduced |
| Edgestream Partners, L.P. | 47,170 | $3.44M | 0.10% | +16,072+51.7% | Added |
| Portolan Capital Management, LLC | 46,348 | $3.38M | 0.18% | +1,484+3.3% | Added |
| B. Metzler seel. Sohn & Co. AG | 45,347 | $3.31M | 0.03% | −12,544−21.7% | Reduced |
| Great West Life Assurance Co | 45,327 | $3.31M | 0.01% | +1,286+2.9% | Added |
| Manatuck Hill Partners, LLC | 45,000 | $3.29M | 1.15% | +45,000 | New |
| AQR Capital Management LLC | 41,776 | $3.05M | 0.00% | +7,447+21.7% | Added |
| Legato Capital Management LLC | 41,396 | $3.02M | 0.26% | +17,311+71.9% | Added |
| Ironwood Investment Management LLC | 39,394 | $2.88M | 1.21% | −54−0.1% | Reduced |
| State of Alaska, Department of Revenue | 38,442 | $2.81M | 0.03% | +8,365+27.8% | Added |
| Swedbank AB | 38,349 | $2.80M | 0.00% | +33,684+722.1% | Added |
| Gotham Asset Management, LLC | 38,214 | $2.79M | 0.01% | +19,760+107.1% | Added |
| Summit Trail Advisors, LLC | 38,005 | $2.77M | 0.05% | +21,802+134.6% | Added |
| Marshall Wace, LLP | 36,821 | $2.69M | 0.00% | +36,821 | New |
| Thrivent Financial for Lutherans | 36,341 | $2.65M | 0.00% | −1,697−4.5% | Reduced |
| TD Asset Management Inc | 32,540 | $2.38M | 0.00% | +1,586+5.1% | Added |
| State of New Jersey Common Pension Fund D | 31,747 | $2.32M | 0.01% | −658−2.0% | Reduced |
| Bouvel Investment Partners, LLC | 31,283 | $2.28M | 0.66% | −176−0.6% | Reduced |
| Hennion & Walsh Asset Management, Inc. | 31,022 | $2.26M | 0.08% | +3,226+11.6% | Added |
| Pathstone Holdings, LLC | 30,606 | $2.23M | 0.01% | +201+0.7% | Added |
| Moody National Bank Trust Division | 29,828 | $2.18M | 0.21% | 00.0% | Unchanged |
| Creative Planning | 29,397 | $2.15M | 0.00% | +4,583+18.5% | Added |
| One Capital Management, LLC | 29,300 | $2.14M | 0.06% | +8,893+43.6% | Added |
| Future Fund LLC | 29,280 | $2.14M | 0.75% | +8,893+43.6% | Added |
| Cresset Asset Management, LLC | 28,874 | $2.11M | 0.01% | +4,832+20.1% | Added |
| Quantbot Technologies LP | 28,194 | $2.06M | 0.07% | +28,194 | New |
| HRT Financial LP | 28,051 | $2.05M | 0.01% | −5,281−15.8% | Reduced |
| Sterling Capital Management LLC | 27,154 | $1.98M | 0.03% | −7,507−21.7% | Reduced |
| Illinois Municipal Retirement Fund | 26,540 | $1.94M | 0.02% | +1,544+6.2% | Added |
| Vestmark Advisory Solutions, Inc. | 26,161 | $1.91M | 0.03% | +26,161 | New |
| Manufacturers Life Insurance Company, The | 26,111 | $1.91M | 0.00% | −1,409−5.1% | Reduced |
| Louisiana State Employees Retirement System | 24,200 | $1.77M | 0.03% | 00.0% | Unchanged |
| Envestnet Asset Management Inc | 24,147 | $1.76M | 0.00% | +4,366+22.1% | Added |
| Great Lakes Advisors, LLC | 23,507 | $1.72M | 0.01% | −11,110−32.1% | Reduced |
| Janus Henderson Group PLC | 23,484 | $1.72M | 0.00% | +3,059+15.0% | Added |
| Integrated Quantitative Investments LLC | 23,036 | $1.68M | 0.36% | +23,036 | New |
| SG Americas Securities, LLC | 22,227 | $1.62M | 0.00% | +11,123+100.2% | Added |
| Oppenheimer & Co Inc | 21,800 | $1.59M | 0.02% | −8,218−27.4% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 21,187 | $1.55M | 0.00% | +10,015+89.6% | Added |
| Two Sigma Advisers, LP | 21,100 | $1.54M | 0.00% | 00.0% | Unchanged |
| Captrust Financial Advisors | 19,165 | $1.40M | 0.00% | +5,426+39.5% | Added |
| Yousif Capital Management, LLC | 14,313 | $1.39M | 0.02% | −2,072−12.6% | Reduced |
| Stifel Financial Corp | 18,515 | $1.35M | 0.00% | +2,163+13.2% | Added |
| State of Tennessee, Treasury Department | 14,222 | $1.34M | 0.00% | −6,534−31.5% | Reduced |
| Sandler Capital Management | 17,800 | $1.30M | 0.58% | −828−4.4% | Reduced |
| M&T Bank Corp | 17,692 | $1.29M | 0.00% | −77−0.4% | Reduced |
| Cookson Peirce & Co Inc | 16,538 | $1.21M | 0.05% | +631+4.0% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 16,307 | $1.19M | 0.00% | +775+5.0% | Added |
| Toroso Investments, LLC | 16,285 | $1.19M | 0.00% | +13,013+397.7% | Added |
| Bridgewater Associates, LP | 15,469 | $1.13M | 0.00% | +15,469 | New |
| Amalgamated Bank | 15,299 | $1.12M | 0.01% | +49+0.3% | Added |
| Arizona State Retirement System | 15,211 | $1.11M | 0.01% | +195+1.3% | Added |
| Verition Fund Management LLC | 14,900 | $1.09M | 0.01% | +6,709+81.9% | Added |
| FIL Ltd | 14,598 | $1.07M | 0.00% | +402+2.8% | Added |
| Police & Firemen's Retirement System of New Jersey | 14,299 | $1.04M | 0.01% | −118−0.8% | Reduced |
| State Board of Administration of Florida Retirement System | 14,269 | $1.04M | 0.00% | 00.0% | Unchanged |
| Teachers Retirement System of the State of Kentucky | 13,396 | $978.0K | 0.01% | −1,275−8.7% | Reduced |
| Defiance ETFs, LLC | 13,104 | $967.7K | 0.03% | +13,104 | New |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 13,093 | $955.9K | 0.00% | −335−2.5% | Reduced |
| STRS Ohio | 13,000 | $949.1K | 0.00% | 00.0% | Unchanged |
| Natixis Advisors, L.P. | 12,991 | $948.0K | 0.00% | −45,567−77.8% | Reduced |
| XTX Topco Ltd | 12,182 | $889.4K | 0.02% | +12,182 | New |
| Rafferty Asset Management, LLC | 12,158 | $887.7K | 0.00% | −632−4.9% | Reduced |
| Oregon Public Employees Retirement Fund | 12,058 | $880.4K | 0.01% | +187+1.6% | Added |
| Los Angeles Capital Management LLC | 10,957 | $841.5K | 0.00% | +10,957 | New |
| KLP Kapitalforvaltning AS | 11,500 | $839.6K | 0.00% | +400+3.6% | Added |
| Neo Ivy Capital Management | 10,960 | $800.2K | 0.13% | +1,116+11.3% | Added |
| Altfest L J & Co Inc | 10,898 | $795.7K | 0.09% | −172−1.6% | Reduced |
| Federated Hermes, Inc. | 10,341 | $755.0K | 0.00% | +10,266+13,688.0% | Added |
| US Bancorp | 10,250 | $748.4K | 0.00% | +8,012+358.0% | Added |
| Callan Family Office, LLC | 10,227 | $746.7K | 0.02% | +10,227 | New |
| ProShare Advisors LLC | 10,134 | $739.9K | 0.00% | +312+3.2% | Added |
| Needham Investment Management LLC | 10,000 | $730.1K | 0.05% | 00.0% | Unchanged |
| Yarbrough Capital, LLC | 9,991 | $729.4K | 0.02% | 00.0% | Unchanged |
| Glenmede Trust Co NA | 9,561 | $698.0K | 0.00% | +9,561 | New |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 9,046 | $687.8K | 0.00% | −1,917−17.5% | Reduced |
| Greenwood Capital Associates LLC | 8,903 | $650.0K | 0.07% | −479−5.1% | Reduced |
| Freestone Grove Partners LP | 8,605 | $628.3K | 0.00% | +8,605 | New |
| Gabelli Funds LLC | 8,438 | $616.1K | 0.00% | −2,229−20.9% | Reduced |
| Guggenheim Capital LLC | 8,297 | $605.8K | 0.00% | +8,297 | New |
| Pictet Asset Management Holding SA | 8,241 | $601.7K | 0.00% | +750+10.0% | Added |
| Harel Insurance Investments & Financial Services Ltd. | 8,091 | $591.0K | 0.01% | −1,067−11.7% | Reduced |
| CWM, LLC | 8,039 | $587.0K | 0.00% | +379+4.9% | Added |
| CI Private Wealth, LLC | 7,811 | $572.7K | 0.00% | +2,056+35.7% | Added |
| Maryland State Retirement & Pension System | 7,714 | $563.2K | 0.01% | +134+1.8% | Added |
| Quadrant Capital Group LLC | 7,702 | $562.3K | 0.02% | +5+0.1% | Added |
| Cim Investment Mangement Inc | 7,620 | $556.3K | 0.15% | 00.0% | Unchanged |
| Vontobel Holding Ltd. | 7,505 | $547.9K | 0.00% | +4,910+189.2% | Added |
| Prelude Capital Management, LLC | 7,276 | $531.2K | 0.04% | +7,276 | New |
| Colony Group, LLC | 7,134 | $520.9K | 0.00% | +205+3.0% | Added |
| Capstone Investment Advisors, LLC | 6,939 | $506.6K | 0.00% | +4,255+158.5% | Added |
| Wealth Enhancement Advisory Services, LLC | 5,768 | $495.6K | 0.00% | +1,243+27.5% | Added |
| O'Shaughnessy Asset Management, LLC | 6,730 | $491.4K | 0.00% | +995+17.3% | Added |