GSA Capital Partners’s Quantum-Si Incorporated QSI Stock Holding History

GSA Capital Partners’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
2025 Q3	–	Sell	-284,363	Closed	-$557K	–	2016
2025 Q2	$557K	Buy	284,363 +38,171	+16%	+$56.5K	0.04%	852
2025 Q1	$295K	Sell	246,192 -128,086	-34%	-$245K	0.03%	1169
2024 Q4	$1.01M	Buy	374,278 +261,961	+233%	+$307K	0.07%	396
2024 Q3	$99K	Sell	112,317 -69,960	-38%	-$67.9K	0.01%	1490
2024 Q2	$191K	Buy	+182,277	New	+$292K	0.01%	1466
2023 Q2	–	Sell	-167,948	Closed	-$296K	–	1866
2023 Q1	$296K	Buy	167,948 +151,235	+905%	+$298K	0.03%	1037
2022 Q4	$31K	Sell	16,713 -28,029	-63%	-$72.2K	﹤0.01%	1381
2022 Q3	$123K	Buy	+44,742	New	+$143K	0.02%	1332

Other funds holding QSI

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

AIM

ARK Investment Management St. Petersburg, Florida $12.9B AUM 64.92% 1-Year Est. Return

NAMA

Nikko Asset Management Americas New York $7.07B AUM 50.91% 1-Year Est. Return

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

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return

Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return

GSA Capital Partners's QSI Position: Q3 2025 in Review

GSA Capital Partners sold out of Quantum-Si Incorporated (QSI) in Q3 2025, closing a stake of 284,363 shares — an estimated $557K sold.

GSA Capital Partners first reported a position in QSI in Q3 2022 and held it in 8 quarters. The position peaked at $1.01M in Q4 2024. 125 funds tracked by Wall St. Rank hold QSI as of Q3 2025.

GSA Capital Partners reported no remaining Quantum-Si Incorporated position as of Q3 2025 after selling out during the quarter.
GSA Capital Partners sold 284,363 Quantum-Si Incorporated shares in Q3 2025, an estimated $557K.
GSA Capital Partners first reported a position in Quantum-Si Incorporated in Q3 2022 and held it in 8 quarters.
GSA Capital Partners's Quantum-Si Incorporated position peaked at $1.01M in Q4 2024.
125 funds tracked by Wall St. Rank held Quantum-Si Incorporated as of Q3 2025.

Based on GSA Capital Partners's 13F filing for Q3 2025, filed 7 Nov 2025.