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Green Alpha Advisors’s Quantum-Si Incorporated QSI Stock Holding History

Green Alpha Advisors’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
Q3 		$50.7K Buy
47,397
+1,476
+3% +$1.18K 0.03% 108
2026
Q2 		$40.6K Buy
45,921
+2,713
+6% +$2.58K 0.03% 113
2026
Q1 		$33.4K Sell
43,208
-8,320
-16% -$8.62K 0.03% 107
2025
Q4 		$56.7K Sell
51,528
-164,504
-76% -$268K 0.05% 115
2025
Q3 		$305K Sell
216,032
-12,316
-5% -$17.8K 0.29% 81
2025
Q2 		$448K Sell
228,348
-15,719
-6% -$23.3K 0.43% 67
2025
Q1 		$293K Buy
244,067
+85,209
+54% +$163K 0.31% 85
2024
Q4 		$429K Sell
158,858
-16,197
-9% -$19K 0.34% 99
2024
Q3 		$154K Buy
175,055
+45,796
+35% +$44.5K 0.12% 126
2024
Q2 		$136K Sell
129,259
-5,357
-4% -$8.59K 0.11% 126
2024
Q1 		$265K Buy
134,616
+2,831
+2% +$4.95K 0.19% 126
2023
Q4 		$265K Buy
131,785
+89,163
+209% +$136K 0.19% 136
2023
Q3 		$70.8K Buy
+42,622
New +$103K 0.05% 155

Other funds holding QSI

DIM
DLK Investment Management Solana Beach, California $275M AUM 10.69% 1-Year Est. Return
BSB
Bangor Savings Bank Bangor, Maine $1.31B AUM 12.25% 1-Year Est. Return
GI
GAMMA Investing Foster City, California $2.96B AUM 34.38% 1-Year Est. Return

Green Alpha Advisors's QSI Position: Q3 2026 in Review

Green Alpha Advisors increased its Quantum-Si Incorporated (QSI) stake by 3.2% in Q3 2026, buying an estimated $1.18K and bringing the position to 47,397 shares worth $50.7K. The position accounts for 0.03% of the portfolio, ranked #108.

Green Alpha Advisors first reported a position in QSI in Q3 2023 and has held it in 13 quarters since. The position peaked at $448K in Q2 2025. 4 funds tracked by Wall St. Rank hold QSI as of Q3 2026.

  • Green Alpha Advisors held 47,397 shares of Quantum-Si Incorporated worth $50.7K as of Q3 2026.
  • Green Alpha Advisors bought 1,476 Quantum-Si Incorporated shares in Q3 2026, an estimated $1.18K.
  • Quantum-Si Incorporated made up 0.03% of Green Alpha Advisors's portfolio in Q3 2026, its #108 holding.
  • Green Alpha Advisors first reported a position in Quantum-Si Incorporated in Q3 2023 and has held it in 13 quarters since.
  • Green Alpha Advisors's Quantum-Si Incorporated position peaked at $448K in Q2 2025.
  • 4 funds tracked by Wall St. Rank held Quantum-Si Incorporated as of Q3 2026.

Based on Green Alpha Advisors's 13F filing for Q3 2026, filed 8 Oct 2026.