California State Teachers Retirement System (CalSTRS)
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California State Teachers Retirement System (CalSTRS)’s Quantum-Si Incorporated QSI Stock Holding History

California State Teachers Retirement System (CalSTRS)’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
Q1 		$6.58K Sell
8,500
-1,161
-12% -$1.2K ﹤0.01% 2808
2025
Q4 		$10.6K Buy
9,661
+854
+10% +$1.39K ﹤0.01% 2766
2025
Q3 		$12.4K Buy
8,807
+6
+0.1% +$9 ﹤0.01% 2756
2025
Q2 		$17.3K Buy
8,801
+1,544
+21% +$2.28K ﹤0.01% 2539
2025
Q1 		$8.71K Hold
7,257
– – ﹤0.01% 2808
2024
Q4 		$19.6K Hold
7,257
– – ﹤0.01% 2619
2024
Q3 		$6.4K Hold
7,257
– – ﹤0.01% 2976
2024
Q2 		$7.62K Sell
7,257
-2,973
-29% -$4.77K ﹤0.01% 2977
2024
Q1 		$20.2K Sell
10,230
-6,517
-39% -$11.4K ﹤0.01% 2709
2023
Q4 		$33.7K Sell
16,747
-5,703
-25% -$8.69K ﹤0.01% 2751
2023
Q3 		$37.3K Sell
22,450
-10,965
-33% -$26.4K ﹤0.01% 2812
2023
Q2 		$59.8K Sell
33,415
-544
-2% -$852 ﹤0.01% 2848
2023
Q1 		$59.8K Sell
33,959
-75,080
-69% -$148K ﹤0.01% 2810
2022
Q4 		$200K Buy
109,039
+1,295
+1% +$3.34K ﹤0.01% 2622
2022
Q3 		$296K Sell
107,744
-805
-0.7% -$2.57K ﹤0.01% 2538
2022
Q2 		$252K Buy
108,549
+38,931
+56% +$149K ﹤0.01% 2618
2022
Q1 		$326K Buy
69,618
+767
+1% +$3.74K ﹤0.01% 2536
2021
Q4 		$542K Buy
+68,851
New +$518K ﹤0.01% 2482

Other funds holding QSI

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
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
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $175B AUM 40.63% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

California State Teachers Retirement System (CalSTRS)'s QSI Position: Q1 2026 in Review

California State Teachers Retirement System (CalSTRS) reduced its Quantum-Si Incorporated (QSI) stake by 12% in Q1 2026, selling an estimated $1.2K and leaving 8,500 shares worth $6.58K. The position accounts for ﹤0.01% of the portfolio, ranked #2808.

California State Teachers Retirement System (CalSTRS) first reported a position in QSI in Q4 2021 and has held it in 18 quarters since. The position peaked at $542K in Q4 2021. 156 funds tracked by Wall St. Rank hold QSI as of Q1 2026.

  • California State Teachers Retirement System (CalSTRS) held 8,500 shares of Quantum-Si Incorporated worth $6.58K as of Q1 2026.
  • California State Teachers Retirement System (CalSTRS) sold 1,161 Quantum-Si Incorporated shares in Q1 2026, an estimated $1.2K.
  • Quantum-Si Incorporated made up ﹤0.01% of California State Teachers Retirement System (CalSTRS)'s portfolio in Q1 2026, its #2808 holding.
  • California State Teachers Retirement System (CalSTRS) first reported a position in Quantum-Si Incorporated in Q4 2021 and has held it in 18 quarters since.
  • California State Teachers Retirement System (CalSTRS)'s Quantum-Si Incorporated position peaked at $542K in Q4 2021.
  • 156 funds tracked by Wall St. Rank held Quantum-Si Incorporated as of Q1 2026.

Based on California State Teachers Retirement System (CalSTRS)'s 13F filing for Q1 2026, filed 18 May 2026.