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Quantum-Si Inc

Nasdaq:QSINasdaq:QSIAW
Measuring & Controlling Devices, NEC·BRANFORD, CT
OverviewAll FilingsSum FinCreditInsidersGovernance
OverviewAll FilingsSum FinCreditInsidersGovernance

All Filings(415 total)

TypeDateAccessionPeriodSize
4
Mar 9, 2026
0001140361-26-008322FORM 4
Mar 5, 2026
4.7 KB
4
Mar 9, 2026
0001140361-26-008320FORM 4
Mar 5, 2026
4.6 KB
S-8
Mar 3, 2026
0001193125-26-088741S-8
—
188.5 KB
10-K
Mar 3, 2026
0001816431-26-00001110-K
Dec 31, 2025
25.5 MB
8-K
Mar 3, 2026
0001816431-26-0000098-K
Mar 3, 2026
525.9 KB
4
Feb 26, 2026
0001140361-26-006970FORM 4
Feb 24, 2026
5.7 KB
8-K
Dec 29, 2025
0001816431-25-0000748-K
Dec 29, 2025
3.5 MB
4
Dec 22, 2025
0002032947-25-000005PRIMARY DOCUMENT
Dec 22, 2025
5.4 KB
144
Dec 22, 2025
0002032947-25-000004
—
6.5 KB
4
Dec 22, 2025
0001856912-25-000005PRIMARY DOCUMENT
Dec 22, 2025
5.4 KB
144
Dec 22, 2025
0001856912-25-000004
—
6.5 KB
4
Dec 22, 2025
0001557736-25-000006PRIMARY DOCUMENT
Dec 22, 2025
5.4 KB
144
Dec 22, 2025
0001557736-25-000005
—
5.9 KB
4
Dec 22, 2025
0001505034-25-000005PRIMARY DOCUMENT
Dec 22, 2025
5.4 KB
144
Dec 22, 2025
0001505034-25-000004
—
6.0 KB
8-K
Nov 20, 2025
0001816431-25-0000718-K
Nov 19, 2025
10.2 MB
10-Q
Nov 5, 2025
0001816431-25-00006610-Q
Sep 30, 2025
10.1 MB
8-K
Nov 5, 2025
0001816431-25-0000658-K
Nov 5, 2025
523.0 KB
SCHEDULE 13G/A
Oct 30, 2025
0000102909-25-000214
—
6.2 KB
424B3
Oct 29, 2025
0001140361-25-039703424B3
—
263.9 KB
144
Oct 20, 2025
0002032947-25-000002
—
6.5 KB
144
Oct 20, 2025
0001856912-25-000002
—
6.5 KB
144
Oct 20, 2025
0001557736-25-000003
—
5.9 KB
144
Oct 20, 2025
0001505034-25-000002
—
6.0 KB
144
Oct 20, 2025
0001690473-25-000002
—
6.5 KB
25 filings shown

In physics, a quantum is the minimum amount of any physical entity involved in an interaction. The fundamental notion that a property can be "quantized" is referred to as "the hypothesis of quantization".

CEO
Hawkins Jeffrey Alan
CFO
Keyes Jeffry R.