| $350M | ||
| $217M | ||
| $172M | ||
| $109M | ||
| $107M | ||
| $104M |
Buys | $564,250 | 2 | 6 |
Sells | $492,995 | 30 | 94 |
| Kummeth Charles R. | director | 1 | $459,800 | 0 | $0 | $459,800 |
| Dowdy Paula | director | 1 | $104,450 | 0 | $0 | $104,450 |
| LaPointe Christian | GC & Corp. Secretary | 0 | $0 | 7 | $50,725 | $-50,725 |
| Vieceli John S. | Chief Product Officer | 0 | $0 | 5 | $74,448 | $-74,448 |
| Keyes Jeffry R. | Chief Financial Officer | 0 | $0 | 9 | $106,517 | $-106,517 |
| Hawkins Jeffrey Alan | President & CEO | 0 | $0 | 9 | $261,305 | $-261,305 |
Quantum-Si incorporated operates within the life sciences sector, focusing on the creation of an advanced platform for individual molecule detection. This innovative technology is designed to streamline sample preparation and subsequent sequencing processes. The company offers a unique, proprietary single molecule detection system that draws on advancements from the semiconductor industry. This system is specifically applied to the field of proteomics, paving the way for next-generation protein sequencing. Established in 2013, Quantum-Si's …
Over the last 12 months, insiders at Quantum-Si incorporated have bought $564,250 and sold $492,995 worth of Quantum-Si incorporated stock.
On average, over the past 5 years, insiders at Quantum-Si incorporated have bought $283,515 and sold $1.05M worth of stock each year.
Highest buying activity among insiders over the last 12 months: Kummeth Charles R. (director) — $459,800. Dowdy Paula (director) — $104,450.
The last purchase of 109,890 shares for transaction amount of $104,450 was made by Dowdy Paula (director) on 2026‑03‑05.
| 2026-09-22 | Sale | Hawkins Jeffrey Alan | President & CEO | 9,709 0.005% | $0.76 | $7,387 | +63.12% | |
| 2026-09-22 | Sale | Keyes Jeffry R. | Chief Financial Officer | 2,493 0.0013% | $0.76 | $1,897 | +63.12% | |
| 2026-09-22 | Sale | LaPointe Christian | GC & Corp. Secretary | 4,721 0.0024% | $0.76 | $3,592 | +63.12% | |
| 2026-09-21 | Sale | Hawkins Jeffrey Alan | President & CEO | 20,143 0.0103% | $0.76 | $15,224 | +69.33% | |
| 2026-09-21 | Sale | Keyes Jeffry R. | Chief Financial Officer | 5,172 0.0027% | $0.76 | $3,909 | +69.33% | |
| 2026-09-21 | Sale | LaPointe Christian | GC & Corp. Secretary | 9,795 0.005% | $0.76 | $7,403 | +69.33% | |
| 2026-06-23 | Sale | Hawkins Jeffrey Alan | President & CEO | 11,311 0.0058% | $0.90 | $10,169 | -6.55% | |
| 2026-06-23 | Sale | Keyes Jeffry R. | Chief Financial Officer | 4,117 0.0021% | $0.90 | $3,701 | -6.55% | |
| 2026-06-23 | Sale | LaPointe Christian | GC & Corp. Secretary | 7,794 0.004% | $0.90 | $7,007 | -6.55% | |
| 2026-06-23 | Sale | Vieceli John S. | Chief Product Officer | 15,112 0.0078% | $0.90 | $13,586 | -6.55% | |
| 2026-06-22 | Sale | Hawkins Jeffrey Alan | President & CEO | 11,310 0.0059% | $0.96 | $10,828 | -10.46% | |
| 2026-06-22 | Sale | Keyes Jeffry R. | Chief Financial Officer | 4,116 0.0022% | $0.96 | $3,941 | -10.46% | |
| 2026-06-22 | Sale | LaPointe Christian | GC & Corp. Secretary | 7,794 0.0041% | $0.96 | $7,462 | -10.46% | |
| 2026-06-22 | Sale | Vieceli John S. | Chief Product Officer | 15,111 0.0079% | $0.96 | $14,467 | -10.46% | |
| 2026-04-21 | Sale | Hawkins Jeffrey Alan | President & CEO | 83,712 0.0434% | $0.99 | $83,293 | -7.57% | |
| 2026-04-21 | Sale | Keyes Jeffry R. | Chief Financial Officer | 37,381 0.0194% | $0.99 | $37,194 | -7.57% | |
| 2026-04-20 | Sale | Hawkins Jeffrey Alan | President & CEO | 83,712 0.0425% | $1.01 | $84,248 | -10.32% | |
| 2026-04-20 | Sale | Keyes Jeffry R. | Chief Financial Officer | 37,382 0.019% | $1.01 | $37,621 | -10.32% | |
| 2026-03-23 | Sale | Hawkins Jeffrey Alan | President & CEO | 12,149 0.0057% | $0.83 | $10,042 | -1.85% | |
| 2026-03-23 | Sale | Keyes Jeffry R. | Chief Financial Officer | 4,422 0.0021% | $0.83 | $3,655 | -1.85% |
| Hawkins Jeffrey Alan | President & CEO | 3639950 1.8296% | $4.73M | 2 | 13 | |
| Keyes Jeffry R. | Chief Financial Officer | 1716684 0.8629% | $2.23M | 2 | 13 | |
| LaPointe Christian | GC & Corp. Secretary | 1167913 0.587% | $1.52M | 4 | 13 | <0.0001% |
| Kummeth Charles R. | director | 855000 0.4298% | $1.11M | 3 | 0 | |
| Dowdy Paula | director | 269107 0.1353% | $349,839.10 | 1 | 0 | |
| ROTHBERG JONATHAN M | 1904866 0.9575% | $2.48M | 1 | 2 | <0.0001% |
| Increased Positions | 69 | +48.25% | 10M | +15.6% |
| Decreased Positions | 57 | -39.86% | 7M | -11.03% |
| New Positions | 31 | New | 1M | New |
| Sold Out Positions | 19 | Sold Out | 1M | Sold Out |
| Total Postitions | 155 | +8.39% | 68M | +4.57% |
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| Vanguard Group Inc | $10,109.00 | 4.45% | 8.71M | +44,846 | +0.52% | 2025-09-30 |
| Ark Investment Management Llc | $8,844.00 | 3.89% | 7.62M | -336,694 | -4.23% | 2025-09-30 |
| Sumitomo Mitsui Trust Group, Inc. | $6,052.00 | 2.66% | 5.22M | -403,804 | -7.18% | 2025-09-30 |
| Amova Asset Management Americas, Inc. | $6,052.00 | 2.66% | 5.22M | -403,804 | -7.18% | 2025-09-30 |
| Geode Capital Management, Llc | $4,347.00 | 1.91% | 3.75M | +299,431 | +8.69% | 2025-09-30 |
| State Street Corp | $3,268.00 | 1.44% | 2.82M | +61,053 | +2.21% | 2025-09-30 |
| Millennium Management Llc | $3,097.00 | 1.36% | 2.67M | -1M | -29.35% | 2025-09-30 |
| Northern Trust Corp | $2,695.00 | 1.19% | 2.32M | +33,586 | +1.47% | 2025-09-30 |
| Susquehanna International Group, Llp | $2,368.00 | 1.04% | 2.04M | +1M | +106.99% | 2025-09-30 |