Quantum-SiQSI
13F holders, Q4 2024 (December 31)121holders +14
29new positions
20sold out
3famous investors
$2.70avg. 13F price*
At the end of Q4 2024, 121 institutions reported holding Quantum-Si Inc. (QSI) in their 13F filings, up 14 from Q3 2024. 29 opened new positions and 20 sold out. The largest holders were ARK Investment Management ($23.9M), BlackRock, Inc. ($22.8M) and Sumitomo Mitsui Trust Group, Inc. ($16.1M). 3 famous investors held it, including Cathie Wood (0.2% of ARK Investment Management's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Cliff Asness (0.0% of AQR Capital Management's portfolio).
- Company
- Quantum-Si Inc.
- CUSIP
- 74765K105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2024 → Q4 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 29 | $2.0M |
| Exits | 20 | $1.6M |
All 13F filers, Q3 2024 → Q4 2024: 10,260,765 shares bought and 8,707,348 shares sold, net +1,553,417 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 121 holders
| ARK Investment Management | 0.20% | Reduce -25.3% | 8,848,650 | $23.9M |
| BlackRock, Inc. | 0.00% | Add +22.3% | 8,437,647 | $22.8M |
| Sumitomo Mitsui Trust Group, Inc. | 0.01% | Reduce -21.0% | 5,965,208 | $16.1M |
| Amova Asset Management Americas, Inc. | 0.17% | Reduce -20.8% | 5,965,208 | $16.0M |
| Vanguard Group Inc. | 0.00% | Add +9.0% | 5,491,753 | $14.8M |
| Morgan Stanley | 0.00% | Add +1036.5% | 3,480,468 | $9.4M |
| State Street Corp. | 0.00% | Add +6.0% | 2,405,019 | $6.5M |
| Geode Capital Management, LLC | 0.00% | Add +2.2% | 2,368,376 | $6.4M |
| Susquehanna International Group, LLP | 0.00% | Add +2177.8% | 1,002,873 | $2.7M |
| Goldman Sachs Group Inc. | 0.00% | Add +313.9% | 1,002,130 | $2.7M |
| Northern Trust Corp. | 0.00% | Add +5.0% | 841,146 | $2.3M |
| Fosun International Ltd | 0.63% | No change | 743,935 | $2.0M |
| UBS Group AG | 0.00% | Add +1104.3% | 592,112 | $1.6M |
| Renaissance Technologies | 0.00% | Add +1211.4% | 544,956 | $1.5M |
| Gsa Capital Partners LLP | 0.07% | Add +233.2% | 374,278 | $1.0M |
| Nuveen Asset Management, LLC | 0.00% | Reduce -43.5% | 319,100 | $862K |
| Charles Schwab Investment Management Inc. | 0.00% | Add +32.6% | 308,021 | $832K |
| Simplex Trading, LLC | 0.02% | Add +1057.7% | 306,769 | $828K |
| Knollwood Investment Advisory, LLC | 0.08% | No change | 300,000 | $810K |
| Bridgeway Capital Management, LLC | 0.02% | Reduce -27.2% | 296,100 | $799K |
| Bank of New York Mellon Corp | 0.00% | Add +21.3% | 269,807 | $728K |
| XTX Topco Ltd | 0.06% | Add +460.5% | 245,585 | $663K |
| Shay Capital LLC | 0.14% | Add +56.7% | 216,546 | $585K |
| Guggenheim Capital LLC | 0.00% | Reduce -17.5% | 199,999 | $540K |
| Green Alpha Advisors, LLC | 0.34% | Reduce -9.3% | 158,858 | $429K |
| Two Sigma Investments, LP | 0.00% | New | 152,683 | $412K |
| Barclays PLC | 0.00% | Reduce -23.5% | 150,616 | $407K |
| Rhumbline Advisers | 0.00% | Add +3.7% | 148,946 | $402K |
| Centiva Capital, LP | 0.01% | New | 143,176 | $387K |
| Wolverine Trading, LLC | 0.01% | Add +725.4% | 111,935 | $373K |
| Pathstone Holdings, LLC | 0.00% | Reduce -10.6% | 128,584 | $347K |
| Bank of America Corp. | 0.00% | Add +13.4% | 111,871 | $302K |
| T. Rowe Price Associates Inc. | 0.00% | Add +12.1% | 109,114 | $295K |
| AQR Capital Management | 0.00% | Add +295.4% | 102,398 | $276K |
| Citigroup Inc. | 0.00% | Add +6.7% | 90,248 | $244K |
| FMR LLC | 0.00% | Add +280.5% | 80,321 | $217K |
| Alliancebernstein L.P. | 0.00% | No change | 76,080 | $205K |
| Wells Fargo & Company | 0.00% | Add +13.9% | 71,980 | $194K |
| SG Americas Securities, LLC | 0.00% | Add +12.4% | 67,588 | $182K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -1.0% | 57,006 | $154K |
| Intech Investment Management LLC | 0.00% | New | 50,837 | $137K |
| Corebridge Financial, Inc. | 0.00% | Reduce -7.0% | 49,790 | $134K |
| JPMorgan Chase & Co. | 0.00% | Reduce -0.4% | 44,857 | $121K |
| Belvedere Trading LLC | 0.01% | New | 41,053 | $111K |
| Cambridge Investment Research Advisors, Inc. | 0.00% | Reduce -19.4% | 38,867 | $105K |
| Invesco Ltd. | 0.00% | Add +11.9% | 37,321 | $101K |
| Red Wave Investments LLC | 0.03% | No change | 37,000 | $100K |
| State of Wisconsin Investment Board | 0.00% | New | 36,330 | $98K |
| Wealth Management Associates, Inc. | 0.04% | No change | 35,050 | $95K |
| Manufacturers Life Insurance Company, The | 0.00% | New | 34,850 | $94K |
| WINTON GROUP Ltd | 0.01% | New | 34,610 | $93K |
| Axq Capital, LP | 0.04% | New | 34,067 | $92K |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd | 0.01% | Add +29.4% | 33,902 | $92K |
| Mariner, LLC | 0.00% | Add +29.1% | 33,439 | $90K |
| Sei Investments Co. | 0.00% | No change | 33,103 | $89K |
| Thoroughbred Financial Services, LLC | 0.01% | New | 33,000 | $89K |
| Deutsche Bank AG | 0.00% | No change | 32,560 | $88K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | — | 31,134 | $84K |
| Commonwealth Equity Services, LLC | 0.00% | Add +46.7% | 31,013 | $84K |
| Mercer Global Advisors Inc. | 0.00% | New | 30,959 | $84K |
| Voya Investment Management LLC | 0.00% | Reduce -15.4% | 30,863 | $83K |
| ProShare Advisors LLC | 0.00% | Add +49.0% | 28,204 | $76K |
| Osaic Holdings, Inc. | 0.00% | Add +159.2% | 27,870 | $75K |
| New York State Common Retirement Fund | 0.00% | No change | 26,084 | $70K |
| Guidance Point Advisors, LLC | 0.02% | No change | 25,742 | $70K |
| Sanctuary Advisors, LLC | 0.00% | New | 35,243 | $69K |
| Jane Street Group, LLC | 0.00% | Reduce -90.7% | 23,845 | $64K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +139.3% | 23,347 | $63K |
| SBI Securities Co., Ltd. | 0.00% | — | 22,261 | $60K |
| Vanguard Personalized Indexing Management, LLC | 0.00% | Add +22.1% | 19,945 | $54K |
| BNP Paribas Financial Markets | 0.00% | New | 19,025 | $51K |
| DLK Investment Management, LLC | 0.02% | No change | 19,000 | $51K |
| Freedom Investment Management, Inc. | 0.00% | Reduce -4.3% | 16,465 | $44K |
| Bravias Capital Group, LLC | 0.03% | — | 20,250 | $40K |
| Flagship Private Wealth, LLC | 0.02% | No change | 14,158 | $38K |
| Alpine Global Management, LLC | 0.01% | New | 13,785 | $37K |
| Procyon Advisors, LLC | 0.00% | No change | 13,671 | $37K |
| Balyasny Asset Management L.P. | 0.00% | New | 13,488 | $36K |
| Wealth Enhancement Advisory Services, LLC | 0.00% | New | 13,384 | $36K |
| Cetera Investment Advisers | 0.00% | New | 13,380 | $36K |
| HSBC Holdings PLC | 0.00% | Reduce -5.3% | 11,742 | $35K |
| Royal Bank of Canada | 0.00% | Add +21.8% | 12,616 | $34K |
| Jump Financial, LLC | 0.00% | New | 12,385 | $33K |
| Victory Capital Management Inc. | 0.00% | Reduce -2.0% | 12,064 | $33K |
| Dudley Capital Management, LLC | 0.02% | New | 11,000 | $30K |
| Callan Capital, LLC | 0.00% | New | 10,800 | $29K |
| Abel Hall, LLC | 0.02% | New | 10,432 | $28K |
| NewEdge Advisors, LLC | 0.00% | Reduce -2.3% | 10,250 | $28K |
| TriaGen Wealth Management LLC | 0.01% | No change | 10,000 | $27K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 9,906 | $27K |
| Wolverine Asset Management LLC | 0.00% | New | 9,632 | $26K |
| Legal & General Group Plc | 0.00% | No change | 9,294 | $25K |
| Russell Investments Group, Ltd. | 0.00% | Add +1041.6% | 9,053 | $24K |
| Nisa Investment Advisors, LLC | 0.00% | Add +1227.9% | 7,516 | $20K |
| Cubist Systematic Strategies, LLC | 0.00% | Reduce -82.2% | 7,305 | $20K |
| California State Teachers Retirement System | 0.00% | No change | 7,257 | $20K |
| Mark Sheptoff Financial Planning, LLC | 0.01% | New | 7,000 | $19K |
| Point72 (DIFC) Ltd | 0.00% | Reduce -18.8% | 6,575 | $18K |
| Federation des caisses Desjardins du Quebec | 0.00% | Add +12200.0% | 6,150 | $17K |
| Principal Securities, Inc. | 0.00% | Add +332.0% | 4,912 | $13K |
| Pinney & Scofield, Inc. | 0.01% | — | 3,680 | $10K |
| Sterling Capital Management LLC | 0.00% | Add +1007.8% | 3,401 | $9K |
| Amalgamated Bank | 0.00% | No change | 3,170 | $9K |
| Cwm, LLC | 0.00% | Add +489.0% | 2,568 | $7K |
| Archer Investment Corp | 0.00% | No change | 2,000 | $5K |
| Tucker Asset Management LLC | 0.00% | New | 1,470 | $4K |
| Avior Wealth Management, LLC | 0.00% | No change | 1,357 | $4K |
| Caitong International Asset Management Co., Ltd | 0.00% | — | 1,228 | $3K |
| Steward Partners Investment Advisory, LLC | 0.00% | Reduce -50.0% | 1,000 | $3K |
| TD Waterhouse Canada Inc. | 0.00% | Add +166.7% | 800 | $2K |
| Twin Tree Management, LP | 0.00% | New | 758 | $2K |
| Capital Advisors, Ltd. LLC | 0.00% | New | 561 | $2K |
| Allworth Financial LP | 0.00% | No change | 836 | $2K |
| CoreCap Advisors, LLC | 0.00% | Add +97.1% | 475 | $1K |
| Eagle Bay Advisors LLC | 0.00% | No change | 277 | $748 |
| Medallion Wealth Advisors, LLC | 0.00% | — | 256 | $692 |
| Parkside Financial Bank & Trust | 0.00% | New | 150 | $405 |
| FSA Wealth Management LLC | 0.00% | No change | 100 | $270 |
| American Capital Advisory, LLC | 0.00% | New | 100 | $270 |
| EverSource Wealth Advisors, LLC | 0.00% | New | 26 | $70 |
| PNC Financial Services Group, Inc. | 0.00% | New | 6 | $16 |
"% of holder's portfolio" is QSI's weight in each manager's 13F, not the share of Quantum-Si Inc. the manager owns.