Dmitry Balyasny’s Quantum-Si Incorporated QSI Stock Holding History

Dmitry Balyasny’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	$12.1K	Buy	+13,629	New	+$13K	﹤0.01%	2936
2026 Q1	–	Sell	-19,300	Closed	-$21.2K	–	3411
2025 Q4	$21.2K	Sell	19,300 -502	-3%	-$817	﹤0.01%	3016
2025 Q3	$27.9K	Buy	+19,802	New	+$28.6K	﹤0.01%	2832
2025 Q1	–	Sell	-13,488	Closed	-$36.4K	–	3202
2024 Q4	$36.4K	Buy	+13,488	New	+$15.8K	﹤0.01%	2645
2022 Q2	–	Sell	-60,807	Closed	-$285K	–	3095
2022 Q1	$285K	Buy	+60,807	New	+$296K	﹤0.01%	1935

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

Dmitry Balyasny's QSI Position: Q2 2026 in Review

Dmitry Balyasny opened a new position in Quantum-Si Incorporated (QSI) in Q2 2026: 13,629 shares worth $12.1K. The stake represents ﹤0.01% of the portfolio and ranks #2936 among its holdings. This is a return to the name: Dmitry Balyasny previously reported a position in QSI as recently as Q4 2025.

Dmitry Balyasny first reported a position in QSI in Q1 2022 and has held it in 5 quarters since. The position peaked at $285K in Q1 2022. 140 funds tracked by Wall St. Rank hold QSI as of Q2 2026.

Dmitry Balyasny held 13,629 shares of Quantum-Si Incorporated worth $12.1K as of Q2 2026.
Quantum-Si Incorporated was a new Dmitry Balyasny position in Q2 2026.
Quantum-Si Incorporated made up ﹤0.01% of Dmitry Balyasny's portfolio in Q2 2026, its #2936 holding.
Dmitry Balyasny first reported a position in Quantum-Si Incorporated in Q1 2022 and has held it in 5 quarters since.
Dmitry Balyasny's Quantum-Si Incorporated position peaked at $285K in Q1 2022.
140 funds tracked by Wall St. Rank held Quantum-Si Incorporated as of Q2 2026.

Based on Balyasny Asset Management's 13F filing for Q2 2026, filed 14 Aug 2026.