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Quantum-Si Inc (QSI)

Over the last 90 days, Quantum-Si Inc. has seen significant insider selling, with a net value of -$297,937. Executives have been the primary sellers. Notably, President & CEO Jeffrey Alan Hawkins and CFO Jeffry R. Keyes have made multiple sell transactions, including proposed sales, totaling hundreds of thousands of dollars.
Stock chart
Ticker: QSI Exchange: NMS


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Purchase Sale Planned purchase Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Keyes Jeffry R.
Chief Financial Officer
1 sale — total 37,194 USD
Sale 21 Apr 2026
Value US$1,983,385.05 | Price 102.82 | Shares 27,863
Sale 21 Apr 2026
Value US$3,016,201.26 | Price 128.89 | Shares 4,117
Sale 20 Apr 2026
Value US$37,621.24 | Price 1.01 | Shares 37,382
Proposed sale 20 Apr 2026
Value US$74,799.39 | Price 1.00 | Shares 74,763
Sale 20 Apr 2026
Value US$84,247.76 | Price 1.01 | Shares 83,712
Proposed sale 20 Apr 2026
Value US$167,507.71 | Price 1.00 | Shares 167,424
Sale 23 Mar 2026
Value US$10,042.36 | Price 0.83 | Shares 12,149
Sale 23 Mar 2026
Value US$3,655.23 | Price 0.83 | Shares 4,422
Sale 23 Mar 2026
Value US$9,290.16 | Price 0.83 | Shares 11,239
Sale 23 Mar 2026
Value US$5,050.53 | Price 0.83 | Shares 6,110
Sale 20 Mar 2026
Value US$9,864.03 | Price 0.85 | Shares 11,628
Proposed sale 20 Mar 2026
Value US$19,906.40 | Price 0.84 | Shares 23,777
Sale 20 Mar 2026
Value US$3,590.85 | Price 0.85 | Shares 4,233
Proposed sale 20 Mar 2026
Value US$7,246.08 | Price 0.84 | Shares 8,655
Sale 20 Mar 2026
Value US$9,126.01 | Price 0.85 | Shares 10,758
Proposed sale 20 Mar 2026
Value US$18,416.17 | Price 0.84 | Shares 21,997
Sale 20 Mar 2026
Value US$4,961.71 | Price 0.85 | Shares 5,849
Proposed sale 20 Mar 2026
Value US$10,012.23 | Price 0.84 | Shares 11,959
Buy 5 Mar 2026
Value US$104,450.44 | Price 0.95 | Shares 109,890
Buy 5 Mar 2026
Value US$459,800.00 | Price 0.92 | Shares 500,000
Proposed sale 22 Dec 2025
Value US$27,978.85 | Price 1.28 | Shares 21,927
Sale 22 Dec 2025
Value US$27,978.85 | Price 1.28 | Shares 21,927
Proposed sale 22 Dec 2025
Value US$15,249.48 | Price 1.28 | Shares 11,951
Sale 22 Dec 2025
Value US$15,249.48 | Price 1.28 | Shares 11,951
Proposed sale 22 Dec 2025
Value US$11,008.05 | Price 1.28 | Shares 8,627
Sale 22 Dec 2025
Value US$11,008.05 | Price 1.28 | Shares 8,627
Proposed sale 22 Dec 2025
Value US$30,250.13 | Price 1.28 | Shares 23,707
Sale 22 Dec 2025
Value US$30,250.13 | Price 1.28 | Shares 23,707
Planned sale 16 Oct 2025
Value US$80,111.65 | Price 3.07 | Shares 26,095
Proposed sale 16 Oct 2025
Value US$80,166.45 | Price 3.07 | Shares 26,095
Sale 23 Sep 2025
Value US$16,093.30 | Price 1.64 | Shares 9,843
Sale 23 Sep 2025
Value US$8,770.14 | Price 1.64 | Shares 5,364
Sale 23 Sep 2025
Value US$30,218.07 | Price 1.64 | Shares 18,482
Sale 23 Sep 2025
Value US$6,332.36 | Price 1.64 | Shares 3,873
Sale 23 Sep 2025
Value US$17,401.30 | Price 1.64 | Shares 10,643
Proposed sale 22 Sep 2025
Value US$32,655.14 | Price 1.66 | Shares 19,686
Sale 22 Sep 2025
Value US$16,561.83 | Price 1.68 | Shares 9,843
Proposed sale 22 Sep 2025
Value US$17,795.61 | Price 1.66 | Shares 10,728
Sale 22 Sep 2025
Value US$9,025.47 | Price 1.68 | Shares 5,364
Proposed sale 22 Sep 2025
Value US$61,315.88 | Price 1.66 | Shares 36,964
Sale 22 Sep 2025
Value US$31,097.81 | Price 1.68 | Shares 18,482
Proposed sale 22 Sep 2025
Value US$12,847.41 | Price 1.66 | Shares 7,746
Sale 22 Sep 2025
Value US$6,516.71 | Price 1.68 | Shares 3,873
Proposed sale 22 Sep 2025
Value US$35,307.56 | Price 1.66 | Shares 21,286
Sale 22 Sep 2025
Value US$17,907.91 | Price 1.68 | Shares 10,643
Sale 23 Jun 2025
Value US$35,381.53 | Price 1.61 | Shares 21,923
Sale 23 Jun 2025
Value US$38,257.50 | Price 1.61 | Shares 23,705
Sale 23 Jun 2025
Value US$13,918.27 | Price 1.61 | Shares 8,624
Sale 23 Jun 2025
Value US$19,279.65 | Price 1.61 | Shares 11,946
Sale 21 Mar 2025
Value US$32,846.05 | Price 1.39 | Shares 23,707
Sale 21 Mar 2025
Value US$6,783.41 | Price 1.39 | Shares 4,896
Sale 21 Mar 2025
Value US$11,951.32 | Price 1.39 | Shares 8,626
Sale 21 Mar 2025
Value US$5,981.20 | Price 1.39 | Shares 4,317
Planned sale 27 Dec 2024
Value US$173,309.82 | Price 4.10 | Shares 42,313
Planned sale 27 Dec 2024
Value US$2,755,874.66 | Price 3.30 | Shares 834,254
Planned sale 27 Dec 2024
Value US$173,309.82 | Price 4.10 | Shares 42,313
Planned sale 27 Dec 2024
Value US$2,755,874.66 | Price 3.30 | Shares 834,254
Planned sale 27 Dec 2024
Value US$173,309.82 | Price 4.10 | Shares 42,313
Planned sale 27 Dec 2024
Value US$2,755,874.66 | Price 3.30 | Shares 834,254
Planned sale 27 Dec 2024
Value US$173,309.82 | Price 4.10 | Shares 42,313
Planned sale 27 Dec 2024
Value US$2,755,871.36 | Price 3.30 | Shares 834,253
Proposed sale 27 Dec 2024
Value US$11,716,541.00 | Price 3.34 | Shares 3,506,267
Sale 23 Dec 2024
Value US$5,570.24 | Price 1.29 | Shares 4,306
Sale 24 Sep 2024
Value US$1,970.29 | Price 0.93 | Shares 2,117
Sale 23 Sep 2024
Value US$2,073.41 | Price 0.95 | Shares 2,192
Buy 12 Aug 2024
Value US$27,532.83 | Price 0.89 | Shares 31,100
Buy 9 Aug 2024
Value US$43,465.00 | Price 0.87 | Shares 50,000
Buy 9 Aug 2024
Value US$120,926.34 | Price 0.87 | Shares 138,900
Buy 9 Aug 2024
Value US$21,272.50 | Price 0.85 | Shares 25,000
Buy 9 Aug 2024
Value US$21,610.00 | Price 0.86 | Shares 25,000
Sale 24 Jun 2024
Value US$3,789.81 | Price 1.20 | Shares 3,169
Sale 21 Jun 2024
Value US$5,262.18 | Price 1.21 | Shares 4,359
Proposed sale 21 Jun 2024
Value US$9,861.68 | Price 1.31 | Shares 7,528
Proposed sale 24 May 2024
Value US$140,207.85 | Price 1.61 | Shares 86,956
Buy 15 Mar 2024
Value US$17,400.00 | Price 1.74 | Shares 10,000
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value
Number of shares Price Value Details
2026-04-22 2026-04-21 S Sale

Chief Financial Officer

Officer
27,863 -48.1%
102.82
US$1,983,385
27,863 -48.1% 102.82 US$1,983,385
2026-04-22 2026-04-21 S Sale

President & CEO

Executive Director
4,117 +21.4%
128.89
US$3,016,201
4,117 +21.4% 128.89 US$3,016,201
2026-04-22 2026-04-20 S Sale

Chief Financial Officer

Officer
71,008 -32.0%
50.68
US$3,381,927
71,008 -32.0% 50.68 US$3,381,927
2026-04-22 2026-04-20 S Sale

President & CEO

Executive Director
83,712 -2.2%
1.01
US$84,248
83,712 -2.2% 1.01 US$84,248
2026-04-22 2026-04-20 PrS Proposed sale

Officer

Officer
74,763
1.00
US$74,799
74,763 1.00 US$74,799
2026-04-22 2026-04-20 PrS Proposed sale

Officer; Director

Executive Director
167,424
1.00
US$167,508
167,424 1.00 US$167,508
2026-03-24 2026-03-23 S Sale

President & CEO

Executive Director
12,149 -0.3%
0.83
US$10,042
12,149 -0.3% 0.83 US$10,042
2026-03-24 2026-03-23 S Sale

Chief Financial Officer

Officer
4,422 -0.2%
0.83
US$3,655
4,422 -0.2% 0.83 US$3,655
2026-03-24 2026-03-23 S Sale

Chief Product Officer

Officer
11,239 -1.0%
0.83
US$9,290
11,239 -1.0% 0.83 US$9,290
2026-03-24 2026-03-23 S Sale

GC & Corp. Secretary

Officer
6,110 -0.5%
0.83
US$5,051
6,110 -0.5% 0.83 US$5,051
2026-03-24 2026-03-20 S Sale

President & CEO

Executive Director
11,628 -0.3%
0.85
US$9,864
11,628 -0.3% 0.85 US$9,864
2026-03-24 2026-03-20 S Sale

Chief Financial Officer

Officer
4,233 -0.2%
0.85
US$3,591
4,233 -0.2% 0.85 US$3,591
2026-03-24 2026-03-20 S Sale

Chief Product Officer

Officer
10,758 -0.9%
0.85
US$9,126
10,758 -0.9% 0.85 US$9,126
2026-03-24 2026-03-20 S Sale

GC & Corp. Secretary

Officer
5,849 -0.5%
0.85
US$4,962
5,849 -0.5% 0.85 US$4,962
2026-03-24 2026-03-20 PrS Proposed sale

Officer

Officer
8,655
0.84
US$7,246
8,655 0.84 US$7,246
2026-03-24 2026-03-20 PrS Proposed sale

Officer

Officer
11,959
0.84
US$10,012
11,959 0.84 US$10,012
2026-03-24 2026-03-20 PrS Proposed sale

Officer; Director

Executive Director
23,777
0.84
US$19,906
23,777 0.84 US$19,906
2026-03-24 2026-03-20 PrS Proposed sale

Officer

Officer
21,997
0.84
US$18,416
21,997 0.84 US$18,416
2026-03-09 2026-03-05 B Purchase Non-Executive Director
109,890 +69.0%
0.95
US$104,450
109,890 +69.0% 0.95 US$104,450
2026-03-09 2026-03-05 B Purchase Non-Executive Director
500,000 +140.8%
0.92
US$459,800
500,000 +140.8% 0.92 US$459,800
2025-12-22 2025-12-22 PrS Proposed sale

Officer

Officer
21,927
1.28
US$27,979
21,927 1.28 US$27,979
2025-12-22 2025-12-22 PrS Proposed sale

Officer

Officer
11,951
1.28
US$15,249
11,951 1.28 US$15,249
2025-12-22 2025-12-22 PrS Proposed sale

Officer

Officer
8,627
1.28
US$11,008
8,627 1.28 US$11,008
2025-12-22 2025-12-22 PrS Proposed sale

Officer; Director

Executive Director
23,707
1.28
US$30,250
23,707 1.28 US$30,250
2025-12-22 2025-12-22 S Sale

Chief Product Officer

Officer
21,927 -2.7%
1.28
US$27,979
21,927 -2.7% 1.28 US$27,979
2025-12-22 2025-12-22 S Sale

GC & Corp. Secretary

Officer
11,951 -1.2%
1.28
US$15,249
11,951 -1.2% 1.28 US$15,249
2025-12-22 2025-12-22 S Sale

Chief Financial Officer

Officer
8,627 -0.7%
1.28
US$11,008
8,627 -0.7% 1.28 US$11,008
2025-12-22 2025-12-22 S Sale

President & CEO

Executive Director
23,707 -0.9%
1.28
US$30,250
23,707 -0.9% 1.28 US$30,250
2025-10-17 2025-10-16 PlS Planned sale Non-Executive Director Large shareholder
26,095 -1.4%
3.07
US$80,112
26,095 -1.4% 3.07 US$80,112
2025-10-16 2025-10-16 PrS Proposed sale

Director

Non-Executive Director
26,095
3.07
US$80,166
26,095 3.07 US$80,166
2025-09-24 2025-09-23 S Sale

Chief Product Officer

Officer
9,843 -1.2%
1.64
US$16,093
9,843 -1.2% 1.64 US$16,093
2025-09-24 2025-09-23 S Sale

GC & Corp. Secretary

Officer
5,364 -0.6%
1.64
US$8,770
5,364 -0.6% 1.64 US$8,770
2025-09-24 2025-09-23 S Sale

Chief Commercial Officer

Officer
18,482 -2.6%
1.64
US$30,218
18,482 -2.6% 1.64 US$30,218
2025-09-24 2025-09-23 S Sale

Chief Financial Officer

Officer
3,873 -0.3%
1.64
US$6,332
3,873 -0.3% 1.64 US$6,332
2025-09-24 2025-09-23 S Sale

President & CEO

Executive Director
10,643 -0.4%
1.64
US$17,401
10,643 -0.4% 1.64 US$17,401
2025-10-20 2025-09-22 PrS Proposed sale

Officer

Officer
19,686
1.66
US$32,655
19,686 1.66 US$32,655
2025-10-20 2025-09-22 PrS Proposed sale

Officer

Officer
10,728
1.66
US$17,796
10,728 1.66 US$17,796
2025-10-20 2025-09-22 PrS Proposed sale

Officer

Officer
36,964
1.66
US$61,316
36,964 1.66 US$61,316
2025-10-20 2025-09-22 PrS Proposed sale

Officer

Officer
7,746
1.66
US$12,847
7,746 1.66 US$12,847
2025-10-20 2025-09-22 PrS Proposed sale

Officer; Director

Executive Director
21,286
1.66
US$35,308
21,286 1.66 US$35,308
2025-09-24 2025-09-22 S Sale

Chief Product Officer

Officer
9,843 -1.2%
1.68
US$16,562
9,843 -1.2% 1.68 US$16,562
2025-09-24 2025-09-22 S Sale

GC & Corp. Secretary

Officer
5,364 -0.6%
1.68
US$9,025
5,364 -0.6% 1.68 US$9,025
2025-09-24 2025-09-22 S Sale

Chief Commercial Officer

Officer
18,482 -2.6%
1.68
US$31,098
18,482 -2.6% 1.68 US$31,098
2025-09-24 2025-09-22 S Sale

Chief Financial Officer

Officer
3,873 -0.3%
1.68
US$6,517
3,873 -0.3% 1.68 US$6,517
2025-09-24 2025-09-22 S Sale

President & CEO

Executive Director
10,643 -0.4%
1.68
US$17,908
10,643 -0.4% 1.68 US$17,908
2025-06-24 2025-06-23 S Sale

Chief Product Officer

Officer
21,923 -2.5%
1.61
US$35,382
21,923 -2.5% 1.61 US$35,382
2025-06-24 2025-06-23 S Sale

President & CEO

Executive Director
23,705 -0.9%
1.61
US$38,257
23,705 -0.9% 1.61 US$38,257
2025-06-24 2025-06-23 S Sale

Chief Financial Officer

Officer
8,624 -0.7%
1.61
US$13,918
8,624 -0.7% 1.61 US$13,918
2025-06-24 2025-06-23 S Sale

GC & Corp. Secretary

Officer
11,946 -1.2%
1.61
US$19,280
11,946 -1.2% 1.61 US$19,280
2025-03-24 2025-03-21 S Sale

President & CEO

Executive Director
23,707 -0.9%
1.39
US$32,846
23,707 -0.9% 1.39 US$32,846
2025-03-24 2025-03-21 S Sale

General Counsel & Corp. Secr.

Officer
4,896 -0.5%
1.39
US$6,783
4,896 -0.5% 1.39 US$6,783
2025-03-24 2025-03-21 S Sale

Chief Financial Officer

Officer
8,626 -0.7%
1.39
US$11,951
8,626 -0.7% 1.39 US$11,951
2025-03-24 2025-03-21 S Sale

Chief Product Officer

Officer
4,317 -0.5%
1.39
US$5,981
4,317 -0.5% 1.39 US$5,981
2024-12-31 2024-12-27 PlS Planned sale Non-Executive Director Large shareholder
42,313 -3.3%
4.10
US$173,310
42,313 -3.3% 4.10 US$173,310
2024-12-31 2024-12-27 PlS Planned sale Non-Executive Director Large shareholder
834,254 -39.2%
3.30
US$2,755,875
834,254 -39.2% 3.30 US$2,755,875
2024-12-31 2024-12-27 PlS Planned sale Non-Executive Director Large shareholder
42,313 -3.3%
4.10
US$173,310
42,313 -3.3% 4.10 US$173,310
2024-12-31 2024-12-27 PlS Planned sale Non-Executive Director Large shareholder
834,254 -39.2%
3.30
US$2,755,875
834,254 -39.2% 3.30 US$2,755,875
2024-12-31 2024-12-27 PlS Planned sale Non-Executive Director Large shareholder
42,313 -3.3%
4.10
US$173,310
42,313 -3.3% 4.10 US$173,310
2024-12-31 2024-12-27 PlS Planned sale Non-Executive Director Large shareholder
834,254 -39.2%
3.30
US$2,755,875
834,254 -39.2% 3.30 US$2,755,875
2024-12-31 2024-12-27 PlS Planned sale Non-Executive Director Large shareholder
42,313 -3.3%
4.10
US$173,310
42,313 -3.3% 4.10 US$173,310
2024-12-31 2024-12-27 PlS Planned sale Non-Executive Director Large shareholder
834,253 -39.2%
3.30
US$2,755,871
834,253 -39.2% 3.30 US$2,755,871
2024-12-27 2024-12-27 PrS Proposed sale

Director

Non-Executive Director
3,506,267
3.34
US$11,716,541
3,506,267 3.34 US$11,716,541
2024-12-26 2024-12-23 S Sale

Chief Product Officer

Officer
4,306 -2.6%
1.29
US$5,570
4,306 -2.6% 1.29 US$5,570
2024-09-25 2024-09-24 S Sale

Chief Product Officer

Officer
2,117 -1.3%
0.93
US$1,970
2,117 -1.3% 0.93 US$1,970
2024-09-25 2024-09-23 S Sale

Chief Product Officer

Officer
2,192 -1.3%
0.95
US$2,073
2,192 -1.3% 0.95 US$2,073
2024-08-13 2024-08-12 B Purchase Non-Executive Director
31,100 +9.6%
0.89
US$27,533
31,100 +9.6% 0.89 US$27,533
2024-08-13 2024-08-09 B Purchase

Chief Financial Officer

Officer
50,000 +12.6%
0.87
US$43,465
50,000 +12.6% 0.87 US$43,465
2024-08-13 2024-08-09 B Purchase Non-Executive Director
138,900 +75.1%
0.87
US$120,926
138,900 +75.1% 0.87 US$120,926
2024-08-13 2024-08-09 B Purchase

President & CEO

Executive Director
25,000 +2.6%
0.85
US$21,272
25,000 +2.6% 0.85 US$21,272
2024-08-13 2024-08-09 B Purchase

General Counsel & Corp. Secr.

Officer
25,000 +4.6%
0.86
US$21,610
25,000 +4.6% 0.86 US$21,610
2024-06-25 2024-06-24 S Sale

Chief Commercial Officer

Officer
3,169 -1.1%
1.20
US$3,790
3,169 -1.1% 1.20 US$3,790
2024-06-25 2024-06-21 S Sale

Chief Commercial Officer

Officer
4,359 -1.4%
1.21
US$5,262
4,359 -1.4% 1.21 US$5,262
2024-06-21 2024-06-21 PrS Proposed sale

Officer

Officer
7,528
1.31
US$9,862
7,528 1.31 US$9,862
2024-05-24 2024-05-24 PrS Proposed sale

Director

Non-Executive Director
86,956
1.61
US$140,208
86,956 1.61 US$140,208
2024-03-18 2024-03-15 B Purchase

General Counsel & Corp. Secr.

Officer
10,000 +4.0%
1.74
US$17,400
10,000 +4.0% 1.74 US$17,400