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MILLENNIUM MANAGEMENT LLC

Position in QSI — Quantum-Si Inc

CIK 1273087 NEW YORK, NY

Position in QSI

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$2,771,577
+$2,560,607 QoQ
Shares Held
3,131,726
+1532.9% QoQ
Ownership
1.43%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#6
of 141 holders
Holding Since
Mar 2021
14 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in QSI Over Time

Shares Held

Position Value (USD)

Position in Medical Devices

Healthcare · as of Jun 30, 2026

MILLENNIUM MANAGEMENT LLC holds $2,417,136,002 across 83 Medical Devices names. QSI ranks #49 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in QSI

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14 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $2,771,577 3,131,726
2025-12-31 $210,970 191,791
2025-09-30 $3,764,642 2,669,959
2025-06-30 $7,407,347 3,779,259
2025-03-31 $4,721,142 3,934,285
2024-09-30 $133,062 150,865
2024-06-30 $393,463 374,727
2024-03-31 $373,880 189,787
2023-03-31 $69,146 39,288
2022-12-31 $20,325 11,107
2022-03-31 $2,893,592 618,289
2021-09-30 $1,740,741 208,722
2021-06-30 $33,715,000 2,750,000
2021-03-31 CAPA 64,096