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ISSUER PROFILE · CIK 0001816431

Quantum-Si IncQSIAW

2 13D/G filings 2 distinct filers 0 insider transactions (365d)

Cross-Reference Snapshot

Activist filings
2
2 SC
Distinct filers
2
multi-activist cluster
Insiders (365d)
0
0 buys · 0 sales
Latest short DTC
1.00
as of 2026-03-31

13D/G Filings Timeline · 2 total

FiledFormFilerStakeSharesIntent
2022-06-28 SC Foresite Capital Fund IV, L.P. view →
2021-06-14 SC Flynn James E view →

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-03-31 4,578 1.00 +9.6%
2026-03-13 4,178 1.00 -7.4%
2026-02-27 4,510 1.00 +4.6%
2026-02-13 4,313 1.00 -23.3%
2026-01-30 5,622 1.00 +7.7%
2026-01-15 5,219 1.00 -33.3%
2025-12-31 7,828 1.00 +134.4%
2025-12-15 3,340 1.00 -26.7%

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