Quantum-si Incorporated · NASDAQ:QSI

ROTHBERG JONATHAN M reported a 7.20% stake in Quantum-si Incorporated (Schedule 13D/A)

Event Aug 26, 2026 · Filed Aug 28, 2026

ROTHBERG JONATHAN M reported a 7.20% stake in Quantum-si Incorporated, 14,376,415 shares, with active intent on Aug 26, 2026. Filed Aug 28, 2026 (Schedule 13D/A).

Stake
7.20%
Shares
14,376,415
Intent
Active
What changed
Stake changed
Filed together
5 holders

The filing in full

HolderStakeShares
ROTHBERG JONATHAN M7.20%14,376,415
ROTHBERG JONATHAN M.100.00%19,937,500
23rd Century Capital LLC0.96%1,917,067
4C Holdings I, LLC90.00%17,943,750
4C Holdings V, LLC10.00%1,993,750

Source

View original at SEC

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