Who owns QUANTUM SI INC?
- Ticker: QSI
- CUSIP Number: 74765k105
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Analyze quarterly positions in Quantum Si with up to 7 years of data, all consolidated into one spreadsheet
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Top investors of Quantum Si stock
Who bought or sold QUANTUM SI INC this quarter?
| Fund or Company Name | Shares Held | Valued At | Change in Shares | As Of | Actions |
|---|---|---|---|---|---|
| BlackRock | 11M | $16M | 4% | Sep 2025 |
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| Vanguard Group | 8.7M | $12M | 1% | Sep 2025 |
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| ARK Investment Management | 7.6M | $11M | -4% | Sep 2025 |
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| Sumitomo Mitsui Trust Holdings | 5.2M | $7.4M | -7% | Sep 2025 |
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| Nikko Asset Management Americas | 5.2M | $7.4M | -7% | Sep 2025 |
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| Geode Capital Management | 3.7M | $5.3M | 9% | Sep 2025 |
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| State Street Corporation | 2.8M | $4.0M | 2% | Sep 2025 |
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| Millennium Management | 2.7M | $3.8M | -29% | Sep 2025 |
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| Susquehanna International | 2.5M | $3.5M | 56% | Sep 2025 |
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| Northern Trust | 2.3M | $3.3M | 1% | Sep 2025 |
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| Jane Street | 1.7M | $2.4M | 380% | Sep 2025 |
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| Citadel Advisors | 1.2M | $1.7M | -10% | Sep 2025 |
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| Peak6 | 987k | $1.4M | 100% | Sep 2025 |
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| Fosun International | 744k | $1.0M | 0% | Sep 2025 |
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| Squarepoint Ops | 614k | $865k | 100% | Sep 2025 |
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| Royal Bank of Canada | 532k | $748k | 16% | Sep 2025 |
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| Two Sigma Investments | 516k | $727k | -9% | Sep 2025 |
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| UBS Group | 505k | $712k | -36% | Sep 2025 |
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| Charles Schwab Investment Management | 468k | $660k | 8% | Sep 2025 |
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| Nuveen | 448k | $631k | -60% | Sep 2025 |
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| Bank of New York Mellon | 395k | $557k | 12% | Sep 2025 |
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| Goldman Sachs Group | 387k | $546k | -12% | Sep 2025 |
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| Group One Trading | 378k | $533k | 181% | Sep 2025 |
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| Knollwood Investment Advisory | 300k | $423k | 0% | Sep 2025 |
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| Invesco | 296k | $417k | 51% | Sep 2025 |
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| Morgan Stanley | 290k | $568k | 100% | Jun 2025 |
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| Wolverine Trading | 273k | $379k | 13% | Sep 2025 |
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| Alliancebernstein | 272k | $384k | 0% | Sep 2025 |
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| Bridgeway Capital Management | 261k | $368k | 33% | Sep 2025 |
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| Barclays | 221k | $312k | -7% | Sep 2025 |
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| Rhumbline Advisers | 220k | $310k | 8% | Sep 2025 |
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| Green Alpha Advisors | 216k | $305k | -5% | Sep 2025 |
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| Davy Asset Management | 189k | $267k | 62% | Sep 2025 |
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| IMC-Chicago | 185k | $261k | 100% | Sep 2025 |
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| Pathstone Holdings | 184k | $259k | -7% | Sep 2025 |
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| Verdence Capital Advisors | 164k | $383k | 100% | Sep 2025 |
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| Shay Capital | 155k | $218k | 19% | Sep 2025 |
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| Simplex Trading | 154k | $217k | 46% | Sep 2025 |
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| XTX Topco | 151k | $212k | 224% | Sep 2025 |
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| Wells Fargo & Company | 136k | $192k | 34% | Sep 2025 |
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| Deutsche Bank Aktiengesellschaft | 112k | $158k | 14% | Sep 2025 |
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| AlphaCore Capital | 103k | $145k | 23% | Sep 2025 |
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| Jones Financial Companies, L.L | 94k | $139k | 99% | Sep 2025 |
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| FMR | 91k | $128k | 389% | Sep 2025 |
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| AQR Capital Management | 84k | $118k | -31% | Sep 2025 |
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| Intech Investment Management | 75k | $105k | -16% | Sep 2025 |
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| Mirae Asset Global Etfs Holdings | 73k | $103k | -5% | Sep 2025 |
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| MetLife Investment Advisors | 65k | $91k | -16% | Sep 2025 |
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| Jpmorgan Chase & Co | 63k | $89k | 10% | Sep 2025 |
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| Caitong International Asset Management | 60k | $84k | 100% | Sep 2025 |
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| Mariner Wealth Advisors | 51k | $71k | 0% | Sep 2025 |
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| Manufacturers Life Insurance Company | 48k | $67k | -3% | Sep 2025 |
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| Police & Firemen's Retirement System of New Jersey | 46k | $65k | 100% | Sep 2025 |
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| SG Americas Securities | 42k | $59k | 31% | Sep 2025 |
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| Engineers Gate Manager | 42k | $58k | 100% | Sep 2025 |
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| Cambridge Investment Research Advisors | 39k | $55k | 0% | Sep 2025 |
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| Red Wave Investments | 37k | $52k | 0% | Sep 2025 |
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| Commonwealth Equity Services | 36k | $51k | 42% | Sep 2025 |
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| Hollencrest Securities | 35k | $49k | 40% | Sep 2025 |
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| Captrust Financial Advisors | 35k | $49k | 2% | Sep 2025 |
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| JTC Employer Solutions Trustee | 35k | $49k | 159% | Sep 2025 |
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| SBI Securities | 34k | $47k | 29% | Sep 2025 |
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| Sei Investments | 33k | $47k | 0% | Sep 2025 |
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| Russell Investments | 32k | $45k | 7% | Sep 2025 |
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| Wealth Management Associates | 31k | $44k | 15% | Sep 2025 |
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| Bnp Paribas Arbitrage, Snc | 31k | $43k | 101% | Sep 2025 |
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| LPL Financial | 29k | $40k | 22% | Sep 2025 |
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| Ing Investment Management | 27k | $38k | -30% | Sep 2025 |
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| Mercer Global Advisors | 27k | $38k | 7% | Sep 2025 |
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| ProShare Advisors | 27k | $38k | -7% | Sep 2025 |
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| New York State Common Retirement Fund | 26k | $37k | 0% | Sep 2025 |
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| JustInvest | 25k | $36k | 5% | Sep 2025 |
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| HBW Advisory Services | 24k | $34k | 0% | Sep 2025 |
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| Elite Life Management | 21k | $54k | 100% | Sep 2025 |
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| Capital Investment Advisory Services | 20k | $28k | 100% | Sep 2025 |
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| Balyasny Asset Management | 20k | $28k | 100% | Sep 2025 |
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| DLK Investment Management | 20k | $28k | 0% | Sep 2025 |
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| Belvedere Trading | 18k | $25k | -27% | Sep 2025 |
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| Victory Capital Management | 18k | $25k | 8% | Sep 2025 |
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| Cibc World Markets | 17k | $34k | -35% | Jun 2025 |
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| Ewa | 17k | $24k | -75% | Sep 2025 |
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| CIBC Bancorp USA | 17k | $24k | 100% | Sep 2025 |
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| Jump Financial | 15k | $21k | 100% | Sep 2025 |
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| Tower Research Capital | 15k | $21k | -2% | Sep 2025 |
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| Summit Investment Advisors | 14k | $20k | 0% | Sep 2025 |
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| Flagship Private Wealth | 14k | $20k | 0% | Sep 2025 |
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| CIBC World Markets | 14k | $20k | 0% | Sep 2025 |
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| Procyon Private Wealth Partners | 14k | $19k | 0% | Sep 2025 |
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| Stratos Wealth Advisors | 14k | $19k | -24% | Sep 2025 |
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| Legal & General Group | 13k | $18k | 0% | Sep 2025 |
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| Prudential Financial | 13k | $18k | 0% | Sep 2025 |
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| Fis | 12k | $17k | 8% | Sep 2025 |
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| Principal Financial Group | 11k | $16k | 100% | Sep 2025 |
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| Sterling Capital Management | 11k | $15k | 219% | Sep 2025 |
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| Mark Sheptoff Financial Planning | 11k | $15k | -28% | Sep 2025 |
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| Goss Wealth Management | 10k | $14k | -1% | Sep 2025 |
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| Kestra Advisory Services | 10k | $14k | 0% | Sep 2025 |
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| TriaGen Wealth Management | 10k | $14k | 0% | Sep 2025 |
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| Glen Eagle Advisors | 10k | $14k | 0% | Sep 2025 |
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| California State Teachers Retirement System | 8.8k | $12k | 0% | Sep 2025 |
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| Wolverine Asset Management | 7.8k | $11k | -53% | Sep 2025 |
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| Principal Securities | 6.6k | $9.4k | 0% | Sep 2025 |
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| Amalgamated Bank | 4.1k | $6.0k | 0% | Sep 2025 |
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| MTM Investment Management | 4.1k | $5.8k | 0% | Sep 2025 |
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| FNY Investment Advisers | 4.0k | $7.0k | 0% | Jun 2025 |
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| N.E.W. Advisory Services | 3.9k | $5.4k | 0% | Sep 2025 |
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| Pinney & Scofield | 3.7k | $5.2k | 0% | Sep 2025 |
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| CWM | 2.2k | $3.0k | -76% | Sep 2025 |
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| Archer Investment Corp | 2.0k | $2.8k | 0% | Sep 2025 |
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| Talon Private Wealth | 2.0k | $3.9k | 100% | Jun 2025 |
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| Advisor Group Holdings | 1.2k | $1.4k | -3% | Sep 2025 |
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| Optiver Holding B.V. | 1.1k | $1.6k | 100% | Sep 2025 |
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| Hanson McClain Advisors | 851.00 | $1.2k | 2% | Sep 2025 |
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| TD Waterhouse Canada | 800.00 | $1.2k | 0% | Sep 2025 |
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| NISA Investment Advisors | 608.00 | $856.976000 | -54% | Sep 2025 |
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| EverSource Wealth Advisors | 427.00 | $601.984600 | -48% | Sep 2025 |
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| Bangor Savings Bank | 400.00 | $564.000000 | 0% | Sep 2025 |
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| Union Bankshares | 251.00 | $354.010400 | 100% | Sep 2025 |
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| SRS Capital Advisors | 104.00 | $145.995200 | 100% | Sep 2025 |
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| FSA Wealth Management | 100.00 | $141.000000 | 0% | Sep 2025 |
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| Capital Advisors | 58.00 | $0 | 0% | Sep 2025 |
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| Federation des caisses Desjardins du Quebec | 50.00 | $71.000000 | 0% | Sep 2025 |
|
Who sold out of Quantum Si?
| Fund or Company Name | Date Sold | Shares Held | Valued At |
|---|---|---|---|
| GSA Capital Partners | Jun 2025 | 284k | $557k |
| Ameriprise Financial | Jun 2025 | 223k | $437k |
| OZ Management | Jun 2025 | 156k | $307k |
| Renaissance Technologies | Jun 2025 | 89k | $175k |
| Axq Capital | Jun 2025 | 57k | $112k |
| Two Sigma Securities | Jun 2025 | 38k | $74k |
| Atom Investors | Jun 2025 | 21k | $41k |
| Kingsview Wealth Management | Jun 2025 | 20k | $39k |
| Leucadia National Corporation | Jun 2025 | 20k | $39k |
| Cetera Investment Advisers | Jun 2025 | 19k | $37k |
| HPM Partners | Jun 2025 | 15k | $29k |
| Hsbc Holdings | Jun 2025 | 14k | $27k |
| Neuberger Berman Group | Jun 2025 | 13k | $26k |
| Florida State Board of Administration | Jun 2025 | 12k | $24k |
| American Century Companies | Jun 2025 | 12k | $24k |
| Callan Family Office | Jun 2025 | 10k | $20k |
| Ground Swell Capital | Jun 2025 | 10k | $20k |
| Headlands Technologies | Jun 2025 | 9.3k | $18k |
| Raymond James Financial | Jun 2025 | 3.7k | $7.3k |
| National Bank Of Canada /fi/ | Jun 2025 | 600.00 | $1.2k |
| Pnc Financial Services | Jun 2025 | 548.00 | $1.1k |