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, Q2 2026
Institutional positions in Mercury Systems Inc as of Jun 30, 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
- 392
- +41 vs. Q1 2026
- Shares held
- 65.6M
- +490.8K (+0.8%) vs. Q1 2026
- Total value
- $8.01B
- +$3.27B (+68.9%) vs. Q1 2026
- New holders
- 85
- 128 more added
- Sold out
- 44
- 132 more reduced
6 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Mercury Systems Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −21,571−100.0% | Sold out |
| Cookson Peirce & Co Inc | 0 | $0 | 0.00% | −17,309−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −11,950−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −9,420−100.0% | Sold out |
| Perbak Capital Partners LLP | 0 | $0 | 0.00% | −8,184−100.0% | Sold out |
| Cinctive Capital Management LP | 0 | $0 | 0.00% | −6,615−100.0% | Sold out |
| IMC-Chicago, LLC | 0 | $0 | 0.00% | −5,422−100.0% | Sold out |
| Bridgefront Capital, LLC | 0 | $0 | 0.00% | −4,914−100.0% | Sold out |
| Capstone Investment Advisors, LLC | 0 | $0 | 0.00% | −4,516−100.0% | Sold out |
| Alamea Verwaltungs GmbH | 0 | $0 | 0.00% | −4,354−100.0% | Sold out |
| Intrua Financial, LLC | 0 | $0 | 0.00% | −4,017−100.0% | Sold out |
| Blackstone Group Inc. | 0 | $0 | 0.00% | −3,799−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −3,213−100.0% | Sold out |
| Blueshift Asset Management, LLC | 0 | $0 | 0.00% | −3,104−100.0% | Sold out |
| Winton Group Ltd | 0 | $0 | 0.00% | −3,057−100.0% | Sold out |
| Mariner, LLC | 0 | $0 | 0.00% | −2,993−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −2,980−100.0% | Sold out |
| Abacus Planning Group, Inc. | 0 | $0 | 0.00% | −2,904−100.0% | Sold out |
| Natixis | 0 | $0 | 0.00% | −2,814−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −740−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −635−100.0% | Sold out |
| Optiver Holding B.V. | 0 | $0 | 0.00% | −331−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −303−100.0% | Sold out |
| HM Payson & Co | 0 | $0 | 0.00% | −200−100.0% | Sold out |
| Root Financial Partners, LLC | 0 | $0 | 0.00% | −192−100.0% | Sold out |
| Matrix Trust Co | 0 | $0 | 0.00% | −135−100.0% | Sold out |
| Ancora Advisors, LLC | 0 | $0 | 0.00% | −135−100.0% | Sold out |
| Sound Income Strategies, LLC | 0 | $0 | 0.00% | −110−100.0% | Sold out |
| Twin Peaks Wealth Advisors, LLC | 0 | $0 | 0.00% | −108−100.0% | Sold out |
| MAI Capital Management | 0 | $0 | 0.00% | −49−100.0% | Sold out |
| Annis Gardner Whiting Capital Advisors, LLC | 0 | $0 | 0.00% | −31−100.0% | Sold out |
| Wall Street Financial Group, Inc. | 0 | $0 | 0.00% | −11−100.0% | Sold out |
| Rossby Financial, LCC | 0 | $0 | 0.00% | −7−100.0% | Sold out |
| Vermillion Wealth Management, Inc. | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| True Wealth Design, LLC | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Janus Henderson Group PLC | – | – | – | – | Not filed |
| Richard Bernstein Advisors LLC | – | – | – | – | Not filed |
| Cim Investment Mangement Inc | – | – | – | – | Not filed |
| CWM, LLC | – | – | – | – | Not filed |
| Journey Strategic Wealth LLC | – | – | – | – | Not filed |
| Sunbelt Securities, Inc. | – | – | – | – | Not filed |