QSI · Company research
Quantum-Si Incorporated Class A Common Stock (QSI): Ownership & Institutional Holders
Reported institutional positions. Filing dates and sources matter.
RESEARCH CONTEXT
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Reported institutional positions. Filing dates and sources matter. Use period, currency, units and source fields when interpreting values.
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Ownership & Institutional Holders data
Database-backed records only
| holder name | cik | period end | shares held | market value | ownership percent | shares change | shares change percent | filing date | data source |
|---|---|---|---|---|---|---|---|---|---|
| Cerity Partners LLC | 1566475 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 68031 | 60208 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Larson Financial Group LLC | 1731061 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 300 | 266 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| NorthCrest Asset Manangement, LLC | 1893159 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 11218 | 10796 | — | — | — | Jul 15, 2026 | SEC_13F_DATASET |
| JONES FINANCIAL COMPANIES LLLP | 815917 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 100483 | 85812 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Focus Partners Wealth | 1542153 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 17219 | 15239 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| Green Alpha Advisors, LLC | 1439207 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 45921 | 40640 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| Stratos Wealth Advisors, LLC | 1707202 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 40036 | 35432 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| IMC-Chicago, LLC | 1452861 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 285758 | 252896 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
| Vanguard Personalized Indexing Management, LLC | 1767306 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 20350 | 18010 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1446194 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1116750 | 988324 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| XTX Topco Ltd | 1828301 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 177680 | 157247 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Capital Investment Advisory Services, LLC | 1659203 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 20000 | 17700 | — | — | — | Jul 23, 2026 | SEC_13F_DATASET |
| BARCLAYS PLC | 312069 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 193465 | 171216 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Shay Capital LLC | 1723643 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 150922 | 133566 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Sumitomo Mitsui Trust Group, Inc. | 1475365 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 3885230 | 3438429 | — | — | — | Jul 30, 2026 | SEC_13F_DATASET |
| RENAISSANCE TECHNOLOGIES LLC | 1037389 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 553871 | 490176 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| VANGUARD FIDUCIARY TRUST CO | 933478 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1116683 | 988264 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Allworth Financial LP | 1555170 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 4814 | 4261 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| Vanguard Global Advisers, LLC | 1811242 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 84757 | 75010 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| True Wealth Design, LLC | 1966033 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 720 | 638 | — | — | — | Jul 16, 2026 | SEC_13F_DATASET |
| Verdence Capital Advisors LLC | 1719305 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 158305 | 140100 | — | — | — | Jul 29, 2026 | SEC_13F_DATASET |
| Steward Partners Investment Advisory, LLC | 1723397 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2000 | 1770 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Clearstead Advisors, LLC | 842775 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 53 | 47 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
| Russell Investments Group, Ltd. | 1692234 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 7551 | 6683 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
| Rialto Wealth Management, LLC | 2054966 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 562 | 498 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| BRIGHTON JONES LLC | 1360798 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 38585 | 34148 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| FMR LLC | 315066 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 123740 | 109510 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| COMMONWEALTH EQUITY SERVICES, LLC | 312272 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 27100 | 23980 | — | — | — | Jul 29, 2026 | SEC_13F_DATASET |
| Creative Planning | 1540235 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 55884 | 49458 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| RAYMOND JAMES FINANCIAL INC | 720005 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 7000 | 6195 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Pallas Capital Advisors LLC | 1862282 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 23320 | 20638 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| GOLDMAN SACHS GROUP INC | 886982 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 312548 | 276605 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Kovack Advisors, Inc. | 1728321 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 31000 | 27435 | — | — | — | Jul 29, 2026 | SEC_13F_DATASET |
| Caitong International Asset Management Co., Ltd | 1963355 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1 | 1 | — | — | — | Aug 5, 2026 | SEC_13F_DATASET |
| ANCHYRA PARTNERS LLC | 2107106 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 18974 | 16792 | — | — | — | Jul 23, 2026 | SEC_13F_DATASET |
| Flagship Private Wealth, LLC | 1842560 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 14158 | 12530 | — | — | — | Aug 4, 2026 | SEC_13F_DATASET |
| Sixth Street Partners Management Company, L.P. | 1812095 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 84612 | 74882 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Wealth Management Associates, Inc. | 2067339 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 26350 | 23320 | — | — | — | Jul 21, 2026 | SEC_13F_DATASET |
| Bank of New York Mellon Corp | 1390777 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 16604 | 14695 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
| GROUP ONE TRADING LLC | 932540 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 617300 | 546310 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| ARK Investment Management LLC | 1697748 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 7167738 | 6343448 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Procyon Advisors, LLC | 1804329 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 13671 | 12099 | — | — | — | Jul 9, 2026 | SEC_13F_DATASET |
| MERCER GLOBAL ADVISORS INC /ADV | 853758 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 77177 | 68302 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| Mariner, LLC | 1373442 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 157689 | 139553 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| N.E.W. Advisory Services LLC | 1803456 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 3854 | 3411 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
| AlphaCore Capital LLC | 1713662 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 89368 | 79091 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
| Laurion Capital Management LP | 1390202 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 12749 | 11283 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 7578208 | 6706714 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 497098 | 439932 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| NewEdge Advisors, LLC | 1633516 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 11168 | 9884 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| Red Wave Investments LLC | 1846493 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 37000 | 32745 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
| TD Waterhouse Canada Inc. | 1999606 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 300 | 276 | — | — | — | Jul 27, 2026 | SEC_13F_DATASET |
| China Universal Asset Management Co., Ltd. | 1906594 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 31484 | 27863 | — | — | — | Jul 24, 2026 | SEC_13F_DATASET |
| JPMORGAN CHASE & CO | 19617 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 16683 | 14830 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| HBW ADVISORY SERVICES LLC | 1790525 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 22292 | 19729 | — | — | — | Jul 16, 2026 | SEC_13F_DATASET |
| SIMPLEX TRADING, LLC | 1488542 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 342500 | 303112 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| Medallion Wealth Advisors, LLC | 2131139 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 242 | 213 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| ROYAL BANK OF CANADA | 1000275 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 8038 | 7000 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| UBS Group AG | 1610520 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2522667 | 2232560 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Glen Eagle Advisors, LLC | 2029317 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 10000 | 8850 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Apollon Wealth Management, LLC | 1764387 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 10056 | 8900 | — | — | — | Jul 23, 2026 | SEC_13F_DATASET |
| STATE STREET CORP | 93751 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 890741 | 788306 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| RHUMBLINE ADVISERS | 1115418 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 75989 | 67249 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| CITIGROUP INC | 831001 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 4659 | 4123 | — | — | — | Aug 3, 2026 | SEC_13F_DATASET |
| SJS Investment Consulting Inc. | 1894302 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 185 | 164 | — | — | — | Jul 22, 2026 | SEC_13F_DATASET |
| NORTHERN TRUST CORP | 73124 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 448416 | 396848 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| RED REEF ADVISORS LLC | 2122970 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 10000 | 8850 | — | — | — | Jul 23, 2026 | SEC_13F_DATASET |
| Merit Financial Group, LLC | 1621225 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 19326 | 17104 | — | — | — | Jul 17, 2026 | SEC_13F_DATASET |
| Sanctuary Advisors, LLC | 1777271 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 41397 | 36636 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | 1632972 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 63435 | 45198 | — | — | — | Jul 15, 2026 | SEC_13F_DATASET |
| DLK Investment Management, LLC | 2016793 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 19000 | 19950 | — | — | — | Jul 14, 2026 | SEC_13F_DATASET |
| Atom Investors LP | 1738902 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 51554 | 45625 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| KESTRA PRIVATE WEALTH SERVICES, LLC | 1649451 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 10000 | 8850 | — | — | — | Jul 28, 2026 | SEC_13F_DATASET |
| GEODE CAPITAL MANAGEMENT, LLC | 1214717 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1841065 | 1630457 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| BANK OF AMERICA CORP /DE/ | 70858 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 59585 | 52733 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Optiver Holding B.V. | 1859606 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 30 | 27 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| Federation des caisses Desjardins du Quebec | 2022297 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 50 | 44 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| JANE STREET GROUP, LLC | 1595888 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1110709 | 982977 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| OSAIC HOLDINGS, INC. | 1677044 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 70 | 62 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| BlackRock, Inc. | 2012383 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 3221675 | 2851182 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
Informational research only, not financial advice. Forecasts are uncertain and can be wrong.