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RHUMBLINE ADVISERS

Position in QSI — Quantum-Si Inc

CIK 1115418 BOSTON, MA

Position in QSI

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$67,250
-$82,184 QoQ
Shares Held
75,989
-60.6% QoQ
Ownership
0.035%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#45
of 141 holders
Holding Since
Jun 2022
17 quarters on record
Voting authority Sole 0% Shared 0% None 100%

Common Shares in QSI Over Time

Shares Held

Position Value (USD)

Position in Medical Devices

Healthcare · as of Jun 30, 2026

RHUMBLINE ADVISERS holds $1,271,214,892 across 85 Medical Devices names. QSI ranks #76 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in QSI

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17 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $67,250 75,989
2026-03-31 $149,434 193,068
2025-12-31 $212,954 193,595
2025-09-30 $310,150 219,965
2025-06-30 $399,775 203,967
2025-03-31 $179,967 149,973
2024-12-31 $402,154 148,946
2024-09-30 $126,697 143,648
2024-06-30 $152,458 145,199
2024-03-31 $285,125 144,734
2023-12-31 $282,949 140,771
2023-09-30 $237,114 142,840
2023-06-30 $248,366 138,752
2023-03-31 $240,102 136,422
2022-12-31 $246,343 134,614
2022-09-30 $364,639 132,596
2022-06-30 $290,215 125,093