Knollwood Investment Advisory’s Quantum-Si Incorporated QSI Stock Holding History

Knollwood Investment Advisory’s Portfolio QSI Stock Details QSI Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$266K	Hold	300,000	–	–	0.02%	240
2026 Q1	$232K	Hold	300,000	–	–	0.02%	288
2025 Q4	$330K	Hold	300,000	–	–	0.03%	272
2025 Q3	$423K	Hold	300,000	–	–	0.04%	275
2025 Q2	$588K	Hold	300,000	–	–	0.06%	241
2025 Q1	$360K	Hold	300,000	–	–	0.04%	292
2024 Q4	$810K	Hold	300,000	–	–	0.08%	212
2024 Q3	$265K	Hold	300,000	–	–	0.03%	330
2024 Q2	$315K	Hold	300,000	–	–	0.04%	307
2024 Q1	$591K	Hold	300,000	–	–	0.11%	135
2023 Q4	$603K	Hold	300,000	–	–	0.13%	129
2023 Q3	$498K	Hold	300,000	–	–	0.23%	68
2023 Q2	$537K	Hold	300,000	–	–	0.18%	94
2023 Q1	$528K	Buy	+300,000	New	+$592K	0.1%	99

Other funds holding QSI

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

AIM

ARK Investment Management St. Petersburg, Florida $15.4B AUM 50.29% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

NAMA

Nikko Asset Management Americas New York $7.75B AUM 33.73% 1-Year Est. Return

Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $175B AUM 40.63% 1-Year Est. Return

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return

Knollwood Investment Advisory's QSI Position: Q2 2026 in Review

Knollwood Investment Advisory held its Quantum-Si Incorporated (QSI) position steady in Q2 2026 at 300,000 shares worth $266K. The position accounts for 0.02% of the portfolio, ranked #240.

Knollwood Investment Advisory first reported a position in QSI in Q1 2023 and has held it in 14 quarters since. The position peaked at $810K in Q4 2024. 141 funds tracked by Wall St. Rank hold QSI as of Q2 2026.

Knollwood Investment Advisory held 300,000 shares of Quantum-Si Incorporated worth $266K as of Q2 2026.
Knollwood Investment Advisory left its Quantum-Si Incorporated share count unchanged in Q2 2026.
Quantum-Si Incorporated made up 0.02% of Knollwood Investment Advisory's portfolio in Q2 2026, its #240 holding.
Knollwood Investment Advisory first reported a position in Quantum-Si Incorporated in Q1 2023 and has held it in 14 quarters since.
Knollwood Investment Advisory's Quantum-Si Incorporated position peaked at $810K in Q4 2024.
141 funds tracked by Wall St. Rank held Quantum-Si Incorporated as of Q2 2026.

Based on Knollwood Investment Advisory's 13F filing for Q2 2026, filed 13 Aug 2026.