NasdaqGM - Nasdaq Real Time Price USD
Quantum-Si incorporated (QSI)
1.4600 -0.2900 (-16.57%)
At close: October 30 at 4:00:00 PM EDT
1.4657 +0.0057 (+0.39%)
After hours: October 30 at 7:56:42 PM EDT
Major Holders
| Breakdown | |
|---|---|
| 10.45% | % of Shares Held by All Insider |
| 24.65% | % of Shares Held by Institutions |
| 27.53% | % of Float Held by Institutions |
| 160 | Number of Institutions Holding Shares |
Top Institutional Holders
| Holder | Shares | Date Reported | % Out | Value |
|---|---|---|---|---|
| Vanguard Capital Management LLC | 7.58M | Jun 30, 2026 | 3.81% | 11,064,183 |
| ARK Investment Management, LLC | 7.17M | Jun 30, 2026 | 3.60% | 10,464,897 |
| Blackrock Inc. | 5.23M | Jun 30, 2026 | 2.63% | 7,629,014 |
| Amova Asset Management Americas Inc | 3.89M | Jun 30, 2026 | 1.95% | 5,672,435 |
| Sumitomo Mitsui Trust Group, Inc. | 3.71M | Sep 30, 2026 | 1.87% | 5,421,607 |
| Millennium Management Llc | 3.13M | Jun 30, 2026 | 1.57% | 4,572,320 |
| UBS Group AG | 2.56M | Jun 30, 2026 | 1.29% | 3,740,369 |
| AQR Capital Management, LLC | 2.35M | Jun 30, 2026 | 1.18% | 3,429,050 |
| Geode Capital Management, LLC | 2.24M | Jun 30, 2026 | 1.12% | 3,265,328 |
| Jane Street Group, LLC | 2.14M | Jun 30, 2026 | 1.08% | 3,128,393 |
Top Mutual Fund Holders
| Holder | Shares | Date Reported | % Out | Value |
|---|---|---|---|---|
| ARK ETF Trust-ARK Genomic Revolution ETF | 6.95M | Sep 30, 2026 | 3.50% | 10,152,072 |
| VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund | 5.35M | Jun 30, 2026 | 2.69% | 7,816,738 |
| VANGUARD INDEX FUNDS-Vanguard Extended Market Index Fund | 1.99M | Jun 30, 2026 | 1.00% | 2,902,864 |
| iShares Trust-iShares Biotechnology ETF | 1.32M | Sep 30, 2026 | 0.67% | 1,931,818 |
| Fidelity Concord Street Trust-Fidelity Extended Market Index Fund | 1.17M | Aug 31, 2026 | 0.59% | 1,713,409 |
| VANGUARD SCOTTSDALE FUNDS-Vanguard Russell 2000 Index Fund | 862.34k | May 31, 2026 | 0.43% | 1,259,022 |
| VANGUARD WORLD FUND-Vanguard Health Care Index Fund | 539.51k | May 31, 2026 | 0.27% | 787,681 |
| iShares Trust-iShares Core S&P Total U.S. Stock Market ETF | 434.63k | Sep 30, 2026 | 0.22% | 634,559 |
| Invesco Exchange-Traded Fund Trust-Invesco RAFI US 1500 Small-Mid ETF | 426.09k | Sep 30, 2026 | 0.21% | 622,092 |
| Fidelity Concord Street Trust-Fidelity Total Market Index Fund | 327.93k | Aug 31, 2026 | 0.16% | 478,774 |