Bangor Savings Bank’s Quantum-Si Incorporated QSI Stock Holding History

Bangor Savings Bank’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	$443	Buy	500 +395	+376%	+$376	﹤0.01%	535
2026 Q1	$81	Buy	+105	New	+$109	﹤0.01%	542
2025 Q4	–	Sell	-400	Closed	-$564	–	622
2025 Q3	$564	Hold	400	–	–	﹤0.01%	530
2025 Q2	$784	Hold	400	–	–	﹤0.01%	519
2025 Q1	$480	Buy	+400	New	+$766	﹤0.01%	527

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

Bangor Savings Bank's QSI Position: Q2 2026 in Review

Bangor Savings Bank increased its Quantum-Si Incorporated (QSI) stake by 376% in Q2 2026, buying an estimated $376 and bringing the position to 500 shares worth $443. The position accounts for ﹤0.01% of the portfolio, ranked #535.

Bangor Savings Bank first reported a position in QSI in Q1 2025 and has held it in 5 quarters since. The position peaked at $784 in Q2 2025. 141 funds tracked by Wall St. Rank hold QSI as of Q2 2026.

Bangor Savings Bank held 500 shares of Quantum-Si Incorporated worth $443 as of Q2 2026.
Bangor Savings Bank bought 395 Quantum-Si Incorporated shares in Q2 2026, an estimated $376.
Quantum-Si Incorporated made up ﹤0.01% of Bangor Savings Bank's portfolio in Q2 2026, its #535 holding.
Bangor Savings Bank first reported a position in Quantum-Si Incorporated in Q1 2025 and has held it in 5 quarters since.
Bangor Savings Bank's Quantum-Si Incorporated position peaked at $784 in Q2 2025.
141 funds tracked by Wall St. Rank held Quantum-Si Incorporated as of Q2 2026.

Based on Bangor Savings Bank's 13F filing for Q2 2026, filed 6 Jul 2026.