Quantum-Si's top three insider shareholders as of September 29, 2026 are Jonathan M Rothberg (Director, 3.75Mn shares), Jeffrey Alan Hawkins (President Ceo, 3.64Mn shares), Jonathan M Rothberg (Interim Ceo, 2.57Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Jeffrey Alan Hawkins | President Ceo | 3,639,950 | 0 | 3,639,950 | 22.1% | 23 Sep, 2026 |
| 2 | John Viii Stark | Chief Executive Officer | 1,977,368 | 0 | 1,977,368 | 12.0% | 12 Jan, 2022 |
| 3 | Jonathan M Rothberg | Director, TenPercentOwner | 0 | 1,904,866 | 1,904,866 | 11.6% | 17 Oct, 2025 |
| 4 | Jeffry R. Keyes | Chief Financial Officer | 1,716,684 | 0 | 1,716,684 | 10.4% | 23 Sep, 2026 |
| 5 | Kevin Rakin | Director | 0 | 1,200,000 | 1,200,000 | 7.3% | 22 Dec, 2022 |
| 6 | Christian Lapointe | Gc Corp. Secretary | 1,167,913 | 0 | 1,167,913 | 7.1% | 23 Sep, 2026 |
| 7 | John S. Vieceli | Chief Product Officer | 1,140,434 | 0 | 1,140,434 | 6.9% | 24 Jun, 2026 |
| 8 | Michael P Mckenna | Evp, Product Development Ops | 869,021 | 0 | 869,021 | 5.3% | 15 Jun, 2022 |
| 9 | Charles R. Kummeth | Director | 855,000 | 0 | 855,000 | 5.2% | 09 Mar, 2026 |
| 10 | Todd C. Bennett | Chief Commercial Officer | 681,521 | 0 | 681,521 | 4.1% | 24 Sep, 2025 |
| 11 | Matthew Dyer | Chief Business Officer | 333,393 | 0 | 333,393 | 2.0% | 15 Jun, 2022 |
| 12 | Grace Johnston | Chief Commercial Officer | 295,940 | 0 | 295,940 | 1.8% | 25 Jun, 2024 |
| 13 | Paula Dowdy | Director | 269,107 | 0 | 269,107 | 1.6% | 09 Mar, 2026 |
| 14 | Scott Mendel | Director | 141,843 | 0 | 141,843 | 0.9% | 16 May, 2023 |
| 15 | Amir Jafri | Director | 115,942 | 0 | 115,942 | 0.7% | 26 Sep, 2023 |
| 16 | John P. Kenny | Director | 114,285 | 0 | 114,285 | 0.7% | 24 May, 2023 |
| 17 | Vikram Bajaj | Director | 66,666 | 0 | 66,666 | 0.4% | 21 Jun, 2022 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 21 Sep, 2026 | Jeffry R. Keyes | Chief Financial Officer | Disposed S | 5,172 | $0.76 | $3.91K | 1,719,177 | Direct |
| 21 Sep, 2026 | Christian Lapointe | Gc Corp. Secretary | Disposed S | 9,795 | $0.76 | $7.40K | 1,172,634 | Direct |
| 21 Sep, 2026 | Jeffrey Alan Hawkins | President Ceo | Disposed S | 20,143 | $0.76 | $15.22K | 3,649,659 | Direct |
| 22 Sep, 2026 | Jeffry R. Keyes | Chief Financial Officer | Disposed S | 2,493 | $0.76 | $1.90K | 1,716,684 | Direct |
| 22 Sep, 2026 | Jeffrey Alan Hawkins | President Ceo | Disposed S | 9,709 | $0.76 | $7.39K | 3,639,950 | Direct |
| 22 Sep, 2026 | Christian Lapointe | Gc Corp. Secretary | Disposed S | 4,721 | $0.76 | $3.59K | 1,167,913 | Direct |
| 22 Jun, 2026 | Christian Lapointe | Gc Corp. Secretary | Disposed S | 7,794 | $0.96 | $7.46K | 1,190,223 | Direct |
| 22 Jun, 2026 | Jeffry R. Keyes | Chief Financial Officer | Disposed S | 4,116 | $0.96 | $3.94K | 1,728,466 | Direct |
| 22 Jun, 2026 | Jeffrey Alan Hawkins | President Ceo | Disposed S | 11,310 | $0.96 | $10.83K | 3,681,113 | Direct |
| 22 Jun, 2026 | John S. Vieceli | Chief Product Officer | Disposed S | 15,111 | $0.96 | $14.47K | 1,155,546 | Direct |
| 23 Jun, 2026 | Christian Lapointe | Gc Corp. Secretary | Disposed S | 7,794 | $0.90 | $7.01K | 1,182,429 | Direct |
| 23 Jun, 2026 | Jeffry R. Keyes | Chief Financial Officer | Disposed S | 4,117 | $0.90 | $3.70K | 1,724,349 | Direct |
| 23 Jun, 2026 | Jeffrey Alan Hawkins | President Ceo | Disposed S | 11,311 | $0.90 | $10.17K | 3,669,802 | Direct |
| 23 Jun, 2026 | John S. Vieceli | Chief Product Officer | Disposed S | 15,112 | $0.90 | $13.59K | 1,140,434 | Direct |
| 18 May, 2026 | Scott Mendel | Director | Acquired A | 251,185 | $0.00 | $0 | 251,185 | Direct |
| 18 May, 2026 | John P. Kenny | Director | Acquired A | 251,185 | $0.00 | $0 | 251,185 | Direct |
| 18 May, 2026 | Charles R. Kummeth | Director | Acquired A | 251,185 | $0.00 | $0 | 251,185 | Direct |
| 18 May, 2026 | Brigid Makes | Director | Acquired A | 251,185 | $0.00 | $0 | 251,185 | Direct |
| 18 May, 2026 | Ruth A Fattori | Director | Acquired A | 251,185 | $0.00 | $0 | 251,185 | Direct |
| 18 May, 2026 | Amir Jafri | Director | Acquired A | 251,185 | $0.00 | $0 | 251,185 | Direct |