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Tower Research Capital LLC (TRC)

Position in QSI — Quantum-Si Inc

CIK 1533421 NEW YORK, NY

Position in QSI

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$19,305
-$16,549 QoQ
Shares Held
24,943
-23.5% QoQ
Ownership
0.011%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Jun 2021
20 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 Mar 31, 2026

Tower Research Capital LLC (TRC) holds $34,298,521 across 111 Medical Devices names. QSI ranks #70 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in QSI

Export CSV
20 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $19,305 24,943
2025-12-31 $35,854 32,595
2025-09-30 $20,672 14,661
2025-06-30 $29,217 14,907
2025-03-31 $25,231 21,026
2024-12-31 $63,036 23,347
2024-09-30 $8,603 9,755
2024-06-30 $21,367 20,350
2024-03-31 $31 16
2023-12-31 $175,755 87,441
2023-09-30 $42,939 25,867
2023-06-30 $25,793 14,410
2023-03-31 $58,137 33,033
2022-12-31 $31,818 17,387
2022-09-30 $31,107 11,312
2022-06-30 $33,862 14,596
2022-03-31 $139,581 29,825
2021-12-31 $13,048 1,658
2021-09-30 $233 28
2021-06-30 $7,601 620