Quantum-SiQSI
13F holders, Q3 2024 (September 30)107holders +8
17new positions
12sold out
6famous investors
$0.88avg. 13F price*
At the end of Q3 2024, 107 institutions reported holding Quantum-Si Inc. (QSI) in their 13F filings, up 8 from Q2 2024. 17 opened new positions and 12 sold out. The largest holders were ARK Investment Management ($10.4M), Sumitomo Mitsui Trust Group, Inc. ($6.7M) and Amova Asset Management Americas, Inc. ($6.6M). 6 famous investors held it, including Cathie Wood (0.1% of ARK Investment Management's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Quantum-Si Inc.
- CUSIP
- 74765K105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2024 → Q3 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 17 | $246K |
| Exits | 12 | $361K |
All 13F filers, Q2 2024 → Q3 2024: 1,143,391 shares bought and 2,570,069 shares sold, net −1,426,678 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 107 holders
| ARK Investment Management | 0.10% | Reduce -4.6% | 11,842,609 | $10.4M |
| Sumitomo Mitsui Trust Group, Inc. | 0.00% | Reduce -4.0% | 7,547,912 | $6.7M |
| Amova Asset Management Americas, Inc. | 0.07% | Reduce -4.3% | 7,527,912 | $6.6M |
| BlackRock, Inc. | 0.00% | — | 6,900,127 | $6.1M |
| Vanguard Group Inc. | 0.00% | Add +1.8% | 5,037,258 | $4.4M |
| Geode Capital Management, LLC | 0.00% | Add +6.7% | 2,316,921 | $2.0M |
| State Street Corp. | 0.00% | Reduce -4.3% | 2,269,038 | $2.0M |
| Jacobs Levy Equity Management, Inc. | 0.00% | Reduce -0.3% | 939,419 | $829K |
| Northern Trust Corp. | 0.00% | Add +2.4% | 801,120 | $707K |
| Fosun International Ltd | 0.22% | No change | 743,935 | $656K |
| Nuveen Asset Management, LLC | 0.00% | No change | 565,080 | $499K |
| Bridgeway Capital Management, LLC | 0.01% | No change | 406,700 | $359K |
| Morgan Stanley | 0.00% | Add +79.6% | 306,247 | $270K |
| Knollwood Investment Advisory, LLC | 0.03% | No change | 300,000 | $265K |
| General American Investors Co. Inc. | 0.02% | No change | 294,350 | $260K |
| Jane Street Group, LLC | 0.00% | Reduce -15.6% | 256,689 | $226K |
| Goldman Sachs Group Inc. | 0.00% | Add +28.0% | 242,138 | $214K |
| Guggenheim Capital LLC | 0.00% | Reduce -4.3% | 242,454 | $213K |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -10.8% | 232,360 | $205K |
| Bank of New York Mellon Corp | 0.00% | Reduce -31.0% | 222,407 | $196K |
| Barclays PLC | 0.00% | Add +210.5% | 196,826 | $174K |
| Green Alpha Advisors, LLC | 0.12% | Add +35.4% | 175,055 | $154K |
| Millennium Management | 0.00% | Reduce -59.7% | 150,865 | $133K |
| Pathstone Holdings, LLC | 0.00% | Add +24.8% | 143,793 | $127K |
| Rhumbline Advisers | 0.00% | Reduce -1.1% | 143,648 | $127K |
| Shay Capital LLC | 0.04% | Reduce -0.1% | 138,170 | $122K |
| Ameriprise Financial Inc. | 0.00% | Reduce -1.6% | 123,757 | $109K |
| Gsa Capital Partners LLP | 0.01% | Reduce -38.4% | 112,317 | $99K |
| Bank of America Corp. | 0.00% | Add +58.1% | 98,685 | $87K |
| T. Rowe Price Associates Inc. | 0.00% | Add +63.0% | 97,327 | $86K |
| Citigroup Inc. | 0.00% | Add +261.7% | 84,602 | $75K |
| Citadel Advisors | 0.00% | Reduce -64.8% | 79,753 | $70K |
| Alliancebernstein L.P. | 0.00% | No change | 76,080 | $67K |
| Wells Fargo & Company | 0.00% | Reduce -8.0% | 63,178 | $56K |
| Public Employees Retirement System of Ohio | 0.00% | No change | 60,526 | $53K |
| SG Americas Securities, LLC | 0.00% | New | 60,118 | $53K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +10.6% | 57,575 | $51K |
| Corebridge Financial, Inc. | 0.00% | Reduce -0.6% | 53,548 | $47K |
| UBS Group AG | 0.00% | Reduce -26.9% | 49,166 | $43K |
| Cambridge Investment Research Advisors, Inc. | 0.00% | Add +44.6% | 48,222 | $43K |
| JPMorgan Chase & Co. | 0.00% | Add +3.2% | 45,041 | $40K |
| Susquehanna International Group, LLP | 0.00% | Reduce -67.4% | 44,029 | $39K |
| XTX Topco Ltd | 0.00% | Add +81.3% | 43,812 | $39K |
| Renaissance Technologies | 0.00% | New | 41,556 | $37K |
| Cubist Systematic Strategies, LLC | 0.00% | New | 41,061 | $36K |
| Red Wave Investments LLC | 0.01% | No change | 37,000 | $33K |
| Voya Investment Management LLC | 0.00% | Add +11.0% | 36,484 | $32K |
| Wealth Management Associates, Inc. | 0.01% | Reduce -7.9% | 35,050 | $31K |
| Invesco Ltd. | 0.00% | Reduce -5.2% | 33,365 | $29K |
| Sei Investments Co. | 0.00% | No change | 33,103 | $29K |
| Deutsche Bank AG | 0.00% | No change | 32,560 | $29K |
| Two Sigma Advisers, LP | 0.00% | Reduce -10.4% | 27,500 | $24K |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd | 0.00% | Add +21.5% | 26,198 | $23K |
| New York State Common Retirement Fund | 0.00% | No change | 26,084 | $23K |
| Simplex Trading, LLC | 0.00% | New | 26,499 | $23K |
| Mariner, LLC | 0.00% | New | 25,899 | $23K |
| AQR Capital Management | 0.00% | New | 25,894 | $23K |
| Guidance Point Advisors, LLC | 0.01% | No change | 25,742 | $23K |
| Neumann Advisory Hong Kong Ltd | 0.01% | Reduce -33.0% | 22,640 | $20K |
| Verition Fund Management LLC | 0.00% | Reduce -81.8% | 22,125 | $20K |
| Commonwealth Equity Services, LLC | 0.00% | Reduce -5.7% | 21,136 | $19K |
| FMR LLC | 0.00% | Add +2148.2% | 21,111 | $19K |
| STRS Ohio | 0.00% | No change | 20,000 | $18K |
| DLK Investment Management, LLC | 0.01% | No change | 19,000 | $17K |
| ProShare Advisors LLC | 0.00% | Reduce -30.6% | 18,924 | $17K |
| Stonebrook Private Inc. | 0.00% | New | 18,105 | $16K |
| Freedom Investment Management, Inc. | 0.00% | Add +65.1% | 17,208 | $15K |
| Vanguard Personalized Indexing Management, LLC | 0.00% | New | 16,333 | $14K |
| Flagship Private Wealth, LLC | 0.01% | No change | 14,158 | $12K |
| D. E. Shaw & Co. | 0.00% | Reduce -46.8% | 14,100 | $12K |
| Wolverine Trading, LLC | 0.00% | Reduce -7.8% | 13,562 | $12K |
| Procyon Advisors, LLC | 0.00% | No change | 13,671 | $12K |
| HSBC Holdings PLC | 0.00% | Add +3.9% | 12,398 | $11K |
| Victory Capital Management Inc. | 0.00% | Reduce -1.3% | 12,314 | $11K |
| Stratos Wealth Advisors, LLC | 0.00% | No change | 11,810 | $10K |
| Jefferies Financial Group Inc. | 0.00% | New | 10,941 | $10K |
| Osaic Holdings, Inc. | 0.00% | No change | 10,752 | $9K |
| NewEdge Advisors, LLC | 0.00% | Reduce -3.1% | 10,492 | $9K |
| Royal Bank of Canada | 0.00% | Add +9.5% | 10,362 | $9K |
| TriaGen Wealth Management LLC | 0.00% | No change | 10,000 | $9K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 9,906 | $9K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -52.1% | 9,755 | $9K |
| Legal & General Group Plc | 0.00% | No change | 9,294 | $8K |
| Point72 (DIFC) Ltd | 0.00% | New | 8,099 | $7K |
| California State Teachers Retirement System | 0.00% | No change | 7,257 | $6K |
| Amalgamated Bank | 0.00% | No change | 3,170 | $3K |
| Archer Investment Corp | 0.00% | Reduce -41.2% | 2,000 | $2K |
| Nordwand Advisors, LLC | 0.00% | New | 2,000 | $2K |
| Steward Partners Investment Advisory, LLC | 0.00% | No change | 2,000 | $2K |
| Fortitude Family Office, LLC | 0.00% | New | 1,462 | $1K |
| Avior Wealth Management, LLC | 0.00% | No change | 1,357 | $1K |
| Principal Securities, Inc. | 0.00% | Add +94.7% | 1,137 | $1K |
| Allworth Financial LP | 0.00% | No change | 836 | $738 |
| Russell Investments Group, Ltd. | 0.00% | Reduce -75.5% | 793 | $700 |
| Northwestern Mutual Wealth Management Co. | 0.00% | New | 728 | $642 |
| Nisa Investment Advisors, LLC | 0.00% | Add +352.8% | 566 | $499 |
| Earned Wealth Advisors, LLC | 0.00% | New | 355 | $313 |
| Sterling Capital Management LLC | 0.00% | — | 307 | $271 |
| Allspring Global Investments Holdings, LLC | 0.00% | New | 292 | $257 |
| TD Waterhouse Canada Inc. | 0.00% | No change | 300 | $252 |
| Eagle Bay Advisors LLC | 0.00% | No change | 277 | $244 |
| CoreCap Advisors, LLC | 0.00% | New | 241 | $213 |
| Planning Capital Management Corp | 0.00% | No change | 115 | $102 |
| Founders Capital Management | 0.00% | New | 100 | $88 |
| FSA Wealth Management LLC | 0.00% | — | 100 | $88 |
| Federation des caisses Desjardins du Quebec | 0.00% | No change | 50 | $44 |
| Cwm, LLC | 0.00% | Add +159.5% | 436 | $0 |
"% of holder's portfolio" is QSI's weight in each manager's 13F, not the share of Quantum-Si Inc. the manager owns.