Companies / Quantum-Si Inc
Quantum-Si Inc
Nasdaq: QSICIK 1816431BRANFORD, CT
Financials · FY2025
Ownership
217.8M shares outstanding · as of May 4, 2026
Ownership
Share classes
| Class A | 90.84% | |
| Class B | 9.16% |
| Insiders | 3.66% | 7,961,956 |
| Institutions | 26.66% | 58,059,011 |
| Public float | 69.68% | 151,739,196 |
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 11
View all →| Insider | % of shares | Shares |
|---|---|---|
Hawkins Jeffrey AlanCEOPresident & CEO · Director | 1.77% | 3,859,847 |
Keyes Jeffry R.Chief Financial Officer | 0.83% | 1,807,345 |
LaPointe ChristianFormerGC & Corp. Secretary | 0.55% | 1,198,017 |
Vieceli John S.Chief Product Officer | 0.54% | 1,170,657 |
Kummeth Charles R.Director | 0.39% | 855,000 |
Dowdy PaulaDirector | 0.12% | 269,107 |
Fattori Ruth ADirector | — | — |
Jafri AmirDirector | — | — |
Makes BrigidDirector | — | — |
Rakin KevinDirector | — | — |
Institutional holders 143
View all →| Holder | Value | % of shares |
|---|---|---|
| $10.57M | 4.41% | |
| $7.72M | 3.22% | |
| $5.16M | 2.15% | |
| $5.11M | 2.15% | |
| $4.62M | 2.40% | |
| $2.97M | 1.76% | |
| $2.94M | 1.23% | |
| $2.56M | 1.07% | |
| $2.43M | 1.01% | |
| $1.85M | 1.10% |
Activity
Jun 30, 2026View all →
InsidersInstitutions
Who's accumulating and trimming this stock (13F).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Q2 2026 as of | BlackRock, Inc. 13F manager | Trim | Common Stock | $-6.93M | -7.8M -59.97% | 5,225,352 2.40% of shares | medium |
| Q2 2026 as of | State Street Corporation 13F manager | Trim | Common Stock | $-2.36M | -2.7M -75.00% | 890,741 0.41% of shares | low |
| Q1 2026 as of | AQR Capital Management, LLC 13F manager | Add | Common Stock | $1.78M | +2.3M +2659.50% | 2,392,179 1.10% of shares | low |
| Q1 2026 as of | Two Sigma Investments, LP 13F manager | Trim | Common Stock | $-1.03M | -1.3M -96.18% | 52,924 0.02% of shares | low |
| Q2 2026 as of | Quadrature Capital Ltd 13F manager | Exit | Common Stock | $-304.6K | -277K -100.00% | — | low |
| Q4 2023 as of | Barclays PLC 13F manager | Add | Common Stock | $244.6K | +122K +253.81% | 169,608 0.08% of shares | low |
| Q2 2025 as of | Barclays PLC 13F manager | Add | Common Stock | $231.5K | +118K +97.70% | 239,001 0.11% of shares | low |
| Q4 2025 as of | Summit Wealth Group LLC / Co 13F manager | Exit | Common Stock | $-225.3K | -2K -100.00% | — | low |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| QSI | Common Stock | 74765K105 |