Vieceli John S. (CIK 2032947) reported 11 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-06-24). Recent activity: Sell QSI (15,111 shares), Sell QSI (15,112 shares), Sell QSI (10,758 shares), Sell QSI (11,239 shares), Buy QSI (391,681 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-24 | Quantum-Si Inc (QSI) | Chief Product Officer | Sell | 15,111 | $14,467 |
| 2026-06-24 | Quantum-Si Inc (QSI) | Chief Product Officer | Sell | 15,112 | $13,586 |
| 2026-03-24 | Quantum-Si Inc (QSI) | Chief Product Officer | Sell | 10,758 | $9,144 |
| 2026-03-24 | Quantum-Si Inc (QSI) | Chief Product Officer | Sell | 11,239 | $9,328 |
| 2026-03-16 | Quantum-Si Inc (QSI) | Chief Product Officer | Buy | 391,681 | $0 |
| 2025-12-22 | Quantum-Si Inc (QSI) | Chief Product Officer | Sell | 21,927 | $28,067 |
| 2025-09-24 | Quantum-Si Inc (QSI) | Chief Product Officer | Sell | 9,843 | $16,536 |
| 2025-09-24 | Quantum-Si Inc (QSI) | Chief Product Officer | Sell | 9,843 | $16,143 |
| 2025-06-24 | Quantum-Si Inc (QSI) | Chief Product Officer | Sell | 21,923 | $35,296 |
| 2025-03-24 | Quantum-Si Inc (QSI) | Chief Product Officer | Sell | 4,317 | $6,001 |
| 2025-03-14 | Quantum-Si Inc (QSI) | Chief Product Officer | Buy | 708,333 | $0 |
Source: SEC Form 4 filings · as of 2026-06-24