CIK 0001816431 · Non-accelerated filer<br>Smaller reporting company
Quantum-Si Inc
Sign in to watch- Ticker
- QSI
- Exchange
- Nasdaq
- Industry
- Measuring & Controlling Devices, NEC
- FY end
- Dec 31
- Incorporated
- DE
- Entity type
- operating
- EIN
- 851388175
- Phone
- (203) 458-7100
- Business address
- 29 BUSINESS PARK DRIVE, BRANFORD, CT, 06405
- Former names
- HighCape Capital Acquisition Corp.
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $39,411
- in 3 filings
Net −$39,411. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
Reading 36 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-09-22 | Keyes Jeffry R. Chief Financial Officer | Sale | −2,493 | $0.76 | $2K | 1,716,684 |
| 2026-09-21 | Keyes Jeffry R. Chief Financial Officer | Sale | −5,172 | $0.76 | $4K | 1,719,177 |
| 2026-06-23 | Keyes Jeffry R. Chief Financial Officer | Sale | −4,117 | $0.90 | $4K | 1,724,349 |
| 2026-06-22 | Keyes Jeffry R. Chief Financial Officer | Sale | −4,116 | $0.96 | $4K | 1,728,466 |
| 2026-04-21 | Keyes Jeffry R. Chief Financial Officer | Sale | −37,381 | $1.00 | $37K | 1,732,582 |
| 2026-04-20 | Keyes Jeffry R. Chief Financial Officer | Sale | −37,382 | $1.01 | $38K | 1,769,963 |
| 2026-03-23 | Keyes Jeffry R. Chief Financial Officer | Sale | −4,422 | $0.83 | $4K | 1,807,345 |
| 2026-03-20 | Keyes Jeffry R. Chief Financial Officer | Sale | −4,233 | $0.85 | $4K | 1,811,767 |
| 2026-03-12 | Keyes Jeffry R. Chief Financial Officer | Grant or award | +652,803 | 1,816,000 | ||
| 2026-03-12 | Keyes Jeffry R. Chief Financial Officer | Grant or award · Stock Option (Right to Buy) | +780,847 | 780,847 | ||
| 2025-12-22 | Keyes Jeffry R. Chief Financial Officer | Sale | −8,627 | $1.28 | $11K | 1,163,197 |
| 2025-09-23 | Keyes Jeffry R. Chief Financial Officer | Sale | −3,873 | $1.64 | $6K | 1,171,824 |
| 2025-09-22 | Keyes Jeffry R. Chief Financial Officer | Sale | −3,873 | $1.68 | $7K | 1,175,697 |
| 2025-06-23 | Keyes Jeffry R. Chief Financial Officer | Sale | −8,624 | $1.61 | $14K | 1,179,570 |
| 2025-03-21 | Keyes Jeffry R. Chief Financial Officer | Sale | −8,626 | $1.39 | $12K | 1,188,194 |
| 2025-03-12 | Keyes Jeffry R. Chief Financial Officer | Grant or award | +750,000 | 1,196,820 | ||
| 2024-08-09 | Keyes Jeffry R. Chief Financial Officer | Purchase | +50,000 | $0.87 | $43K | 446,820 |
| 2024-03-15 | Keyes Jeffry R. Chief Financial Officer | Grant or award | +346,820 | 396,820 | ||
| 2024-03-05 | Keyes Jeffry R. Chief Financial Officer | Purchase | +50,000 | $1.61 | $81K | 50,000 |
| 2023-05-15 | Keyes Jeffry R. Chief Financial Officer | Grant or award · Stock Option (right to buy) | +1,000,000 | 1,000,000 |
Page 1 of 2 · 22 trades