Who Owns Quantum-Si incorporated (QSI)? -- Institutional Holders (2026-06-30)
178 institutions reported holding $47.7M of Quantum-Si incorporated (QSI) in SEC 13F filings for 2026-06-30. Largest institutional holders: VANGUARD GROUP INC ($8.2M), ARK Investment Management LLC ($6.3M), BlackRock, Inc. ($4.6M), Amova Asset Management Americas, Inc. ($3.5M), Sumitomo Mitsui Trust Group, Inc. ($3.4M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|
| 1 | VANGUARD GROUP INC | $8.2M | 9.3M | Trimmed |
| 2 | ARK Investment Management LLC | $6.3M | 7.2M | Added |
| 3 | BlackRock, Inc. | $4.6M | 5.2M | Trimmed |
| 4 | Amova Asset Management Americas, Inc. | $3.5M | 3.9M | Trimmed |
| 5 | Sumitomo Mitsui Trust Group, Inc. | $3.4M | 3.9M | Trimmed |
| 6 | MILLENNIUM MANAGEMENT LLC | $2.8M | 3.1M | New |
| 7 | UBS Group AG | $2.3M | 2.6M | Added |
| 8 | JANE STREET GROUP, LLC | $2.1M | 2.4M | Added |
| 9 | AQR CAPITAL MANAGEMENT LLC | $2.1M | 2.3M | Trimmed |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | $2.0M | 2.2M | Trimmed |
| 11 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1.4M | 1.5M | Trimmed |
| 12 | STATE STREET CORP | $788,306 | 890,741 | Trimmed |
| 13 | Fosun International Ltd | $658,382 | 743,935 | Hold |
| 14 | RENAISSANCE TECHNOLOGIES LLC | $490,176 | 553,871 | Added |
| 15 | GOLDMAN SACHS GROUP INC | $421,515 | 476,288 | Added |
| 16 | NORTHERN TRUST CORP | $398,720 | 450,531 | Trimmed |
| 17 | Invesco Ltd. | $392,877 | 443,929 | Added |
| 18 | BNP PARIBAS FINANCIAL MARKETS | $352,759 | 398,598 | Added |
| 19 | IEQ CAPITAL, LLC | $310,472 | 350,816 | Trimmed |
| 20 | Aster Capital Management (DIFC) Ltd | $304,891 | 344,510 | New |
| 21 | CITADEL ADVISORS LLC | $294,647 | 332,935 | Added |
| 22 | MORGAN STANLEY | $286,282 | 323,482 | Added |
| 23 | IQ EQ FUND MANAGEMENT (IRELAND) Ltd | $284,204 | 321,134 | Added |
| 24 | Knollwood Investment Advisory, LLC | $265,500 | 300,000 | Hold |
| 25 | IMC-Chicago, LLC | $252,896 | 285,758 | Added |
Source: SEC Form 13F filings · as of 2026-06-30