| $385M | ||
| $350M | ||
| $215M | ||
| $94M | ||
| $82M | ||
| $62M |
Buys | $0 | 0 | 0 |
Sells | $488,922 | 23 | 100 |
| Keyes Jeffry R. | Chief Financial Officer | 0 | $0 | 5 | $49,727 | $-49,727 |
| LaPointe Christian | General Counsel & Corp. Secr. | 0 | $0 | 5 | $59,108 | $-59,108 |
| Bennett Todd C. | Chief Commercial Officer | 0 | $0 | 2 | $61,316 | $-61,316 |
| ROTHBERG JONATHAN M | 0 | $0 | 1 | $80,112 | $-80,112 | |
| Vieceli John S. | Chief Product Officer | 0 | $0 | 5 | $101,997 | $-101,997 |
| Hawkins Jeffrey Alan | President & CEO | 0 | $0 | 5 | $136,663 | $-136,663 |
Quantum-Si incorporated, a life sciences company, develops a single molecule detection platform for sample preparation and sequencing. It offers a proprietary single molecule detection platform for use in semiconductor industry to field proteomics to enable next generation protein sequencing. The company was incorporated in 2013 is based in Guilford, Connecticut.
Over the last 12 months, insiders at Quantum-Si incorporated have bought $0 and sold $488,922 worth of Quantum-Si incorporated stock.
On average, over the past 5 years, insiders at Quantum-Si incorporated have bought $189,936 and sold $1.21M worth of stock each year.
There was no buying activity among insiders over the last 12 months.
The last purchase of 31,100 shares for transaction amount of $27,533 was made by Kummeth Charles R. (director) on 2024‑08‑12.
| 2025-12-22 | Sale | Hawkins Jeffrey Alan | President & CEO | 23,707 0.0122% | $1.28 | $30,250 | -3.15% | |
| 2025-12-22 | Sale | Keyes Jeffry R. | Chief Financial Officer | 8,627 0.0044% | $1.28 | $11,008 | -3.15% | |
| 2025-12-22 | Sale | LaPointe Christian | GC & Corp. Secretary | 11,951 0.0061% | $1.28 | $15,249 | -3.15% | |
| 2025-12-22 | Sale | Vieceli John S. | Chief Product Officer | 21,927 0.0113% | $1.28 | $27,979 | -3.15% | |
| 2025-10-16 | Sale | ROTHBERG JONATHAN M | 26,095 0.0156% | $3.07 | $80,112 | -48.43% | ||
| 2025-09-23 | Sale | Hawkins Jeffrey Alan | President & CEO | 10,643 0.0054% | $1.64 | $17,401 | -12.81% | |
| 2025-09-23 | Sale | Keyes Jeffry R. | Chief Financial Officer | 3,873 0.002% | $1.64 | $6,332 | -12.81% | |
| 2025-09-23 | Sale | LaPointe Christian | GC & Corp. Secretary | 5,364 0.0027% | $1.64 | $8,770 | -12.81% | |
| 2025-09-23 | Sale | Vieceli John S. | Chief Product Officer | 9,843 0.005% | $1.64 | $16,093 | -12.81% | |
| 2025-09-23 | Sale | Bennett Todd C. | Chief Commercial Officer | 18,482 0.0093% | $1.64 | $30,218 | -12.81% | |
| 2025-09-22 | Sale | Hawkins Jeffrey Alan | President & CEO | 10,643 0.0052% | $1.68 | $17,908 | -17.65% | |
| 2025-09-22 | Sale | Keyes Jeffry R. | Chief Financial Officer | 3,873 0.0019% | $1.68 | $6,517 | -17.65% | |
| 2025-09-22 | Sale | LaPointe Christian | GC & Corp. Secretary | 5,364 0.0026% | $1.68 | $9,025 | -17.65% | |
| 2025-09-22 | Sale | Vieceli John S. | Chief Product Officer | 9,843 0.0048% | $1.68 | $16,562 | -17.65% | |
| 2025-09-22 | Sale | Bennett Todd C. | Chief Commercial Officer | 18,482 0.009% | $1.68 | $31,098 | -17.65% | |
| 2025-06-23 | Sale | Hawkins Jeffrey Alan | President & CEO | 23,705 0.0126% | $1.61 | $38,258 | -14.55% | |
| 2025-06-23 | Sale | Keyes Jeffry R. | Chief Financial Officer | 8,624 0.0046% | $1.61 | $13,918 | -14.55% | |
| 2025-06-23 | Sale | LaPointe Christian | GC & Corp. Secretary | 11,946 0.0064% | $1.61 | $19,280 | -14.55% | |
| 2025-06-23 | Sale | Vieceli John S. | Chief Product Officer | 21,923 0.0117% | $1.61 | $35,382 | -14.55% | |
| 2025-03-21 | Sale | Hawkins Jeffrey Alan | President & CEO | 23,707 0.0123% | $1.39 | $32,846 | -3.42% |
| Hawkins Jeffrey Alan | President & CEO | 2578018 1.3183% | $3.26M | 2 | 5 | |
| ROTHBERG JONATHAN M | 1904866 0.9741% | $2.41M | 1 | 2 | <0.0001% | |
| Keyes Jeffry R. | Chief Financial Officer | 1163197 0.5948% | $1.47M | 2 | 5 | |
| LaPointe Christian | GC & Corp. Secretary | 948855 0.4852% | $1.2M | 4 | 7 | <0.0001% |
| Vieceli John S. | Chief Product Officer | 800973 0.4096% | $1.01M | 0 | 8 | |
| Bennett Todd C. | Chief Commercial Officer | 681521 0.3485% | $862,124.07 | 0 | 2 | |
| Stark John VIII | Chief Executive Officer | 1977368 1.0112% | $2.5M | 0 | 2 | |
| RAKIN KEVIN | director | 1801000 0.921% | $2.28M | 0 | 1 | |
| MCKENNA MICHAEL P | EVP, Product Development & Ops | 869021 0.4444% | $1.1M | 0 | 2 | |
| Kummeth Charles R. | director | 355000 0.1815% | $449,075.00 | 2 | 0 | |
| Dyer Matthew | Chief Business Officer | 333393 0.1705% | $421,742.15 | 0 | 2 | |
| Johnston Grace | Chief Commercial Officer | 295940 0.1513% | $374,364.10 | 0 | 2 |
$22,693,451 | 105 | 8.15% | $213.4M | |
$7,508,580 | 92 | -5.59% | $220.03M | |
$109,415,500 | 33 | 18.13% | $224.27M | |
$64,487,106 | 32 | -22.92% | $261.45M | |
$22,017,898 | 24 | 39.19% | $241.19M | |
$3,668,031 | 23 | 2.05% | $279.63M | |
$1,842,003 | 22 | -0.74% | $286M | |
$6,915,275 | 21 | -32.61% | $238.87M | |
$1,037,470 | 13 | 78.00% | $213.96M | |
$10,143,329 | 12 | 11.84% | $278.19M | |
$170,425 | 10 | -16.01% | $228.12M | |
$145,296,407 | 8 | -0.98% | $222.4M | |
$91,549,696 | 8 | -6.55% | $219.17M | |
$272,982 | 6 | -28.53% | $298.11M | |
$37,067 | 3 | -89.81% | $284.6M | |
Quantum-Si incorporated (QSI) | $193,101 | 3 | -25.20% | $247.37M |
$16,003,671 | 3 | 55.38% | $248.99M | |
$2,720,023 | 3 | -11.76% | $283.62M | |
$802,500 | 1 | 5.37% | $267.82M |
| Increased Positions | 60 | +39.74% | 6M | +8.77% |
| Decreased Positions | 63 | -41.72% | 5M | -8.51% |
| New Positions | 17 | New | 1M | New |
| Sold Out Positions | 23 | Sold Out | 970,473 | Sold Out |
| Total Postitions | 148 | -1.99% | 64M | +0.26% |
| Blackrock, Inc. | $13,133.00 | 5.78% | 11.32M | +473,531 | +4.37% | 2025-09-30 |
| 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 |