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RENAISSANCE TECHNOLOGIES LLC

Position in QSI — Quantum-Si Inc

CIK 1037389 NEW YORK, NY

Position in QSI

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$490,175
+$398,921 QoQ
Shares Held
553,871
+369.8% QoQ
Ownership
0.253%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#15
of 141 holders
Holding Since
Dec 2022
9 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

RENAISSANCE TECHNOLOGIES LLC holds $976,541,172 across 78 Medical Devices names. QSI ranks #56 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in QSI

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9 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $490,175 553,871
2026-03-31 $91,254 117,900
2025-06-30 $174,832 89,200
2025-03-31 $1,046,107 871,756
2024-12-31 $1,471,381 544,956
2024-09-30 $36,652 41,556
2023-06-30 $399,628 223,256
2023-03-31 $198,626 112,856
2022-12-31 $68,727 37,556