California State Teachers Retirement System (CalSTRS)
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California State Teachers Retirement System (CalSTRS)’s Keros Therapeutics KROS Stock Holding History

California State Teachers Retirement System (CalSTRS)’s Portfolio KROS Stock Details KROS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$2.73K Sell
255
-1,326
-84% -$14.8K ﹤0.01% 2808
2026
Q1 		$17.5K Sell
1,581
-218
-12% -$3.37K ﹤0.01% 2485
2025
Q4 		$36.6K Sell
1,799
-301
-14% -$5.28K ﹤0.01% 2343
2025
Q3 		$33.2K Buy
+2,100
New +$31K ﹤0.01% 2378
2025
Q2 		– Sell
-2,250
Closed -$22.9K – 3079
2025
Q1 		$22.9K Sell
2,250
-25,871
-92% -$300K ﹤0.01% 2489
2024
Q4 		$445K Buy
28,121
+767
+3% +$39.9K ﹤0.01% 2159
2024
Q3 		$1.59M Sell
27,354
-898
-3% -$44.4K ﹤0.01% 1526
2024
Q2 		$1.29M Buy
28,252
+2,938
+12% +$158K ﹤0.01% 1631
2024
Q1 		$1.68M Buy
25,314
+3,111
+14% +$184K ﹤0.01% 1525
2023
Q4 		$883K Sell
22,203
-1,064
-5% -$33.4K ﹤0.01% 1902
2023
Q3 		$742K Sell
23,267
-1,793
-7% -$66.9K ﹤0.01% 1965
2023
Q2 		$1.01M Buy
25,060
+3,388
+16% +$149K ﹤0.01% 1909
2023
Q1 		$925K Buy
21,672
+566
+3% +$28.6K ﹤0.01% 1940
2022
Q4 		$1.01M Buy
21,106
+1,595
+8% +$74.5K ﹤0.01% 1888
2022
Q3 		$734K Buy
19,511
+364
+2% +$12.6K ﹤0.01% 2107
2022
Q2 		$529K Buy
19,147
+1,477
+8% +$64.8K ﹤0.01% 2363
2022
Q1 		$961K Sell
17,670
-1,647
-9% -$84.5K ﹤0.01% 2060
2021
Q4 		$1.13M Buy
19,317
+422
+2% +$21K ﹤0.01% 2092
2021
Q3 		$747K Sell
18,895
-2,624
-12% -$93.4K ﹤0.01% 2302
2021
Q2 		$914K Buy
21,519
+1,588
+8% +$86K ﹤0.01% 2267
2021
Q1 		$1.23M Buy
19,931
+207
+1% +$13.1K ﹤0.01% 2016
2020
Q4 		$1.39M Buy
19,724
+9,221
+88% +$581K ﹤0.01% 1835
2020
Q3 		$405K Hold
10,503
– – ﹤0.01% 2394
2020
Q2 		$394K Buy
+10,503
New +$324K ﹤0.01% 2371

Other funds holding KROS

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
NCM
Nantahala Capital Management New Canaan, Connecticut $3.01B AUM 119.46% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
O
OrbiMed New York $5.4B AUM 163.13% 1-Year Est. Return
Federated Hermes
Federated Hermes Pittsburgh, Pennsylvania $69.6B AUM 42.52% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Mackenzie Financial
Mackenzie Financial Toronto Ontario, Ontario, Canada $100B AUM 36.93% 1-Year Est. Return
MAP
Madison Avenue Partners New York $2.32B AUM 132.6% 1-Year Est. Return
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT) London, United Kingdom $108B AUM 37.29% 1-Year Est. Return

California State Teachers Retirement System (CalSTRS)'s KROS Position: Q2 2026 in Review

California State Teachers Retirement System (CalSTRS) reduced its Keros Therapeutics (KROS) stake by 84% in Q2 2026, selling an estimated $14.8K and leaving 255 shares worth $2.73K. The position accounts for ﹤0.01% of the portfolio, ranked #2808.

California State Teachers Retirement System (CalSTRS) first reported a position in KROS in Q2 2020 and has held it in 24 quarters since. The position peaked at $1.68M in Q1 2024. 132 funds tracked by Wall St. Rank hold KROS as of Q2 2026.

  • California State Teachers Retirement System (CalSTRS) held 255 shares of Keros Therapeutics worth $2.73K as of Q2 2026.
  • California State Teachers Retirement System (CalSTRS) sold 1,326 Keros Therapeutics shares in Q2 2026, an estimated $14.8K.
  • Keros Therapeutics made up ﹤0.01% of California State Teachers Retirement System (CalSTRS)'s portfolio in Q2 2026, its #2808 holding.
  • California State Teachers Retirement System (CalSTRS) first reported a position in Keros Therapeutics in Q2 2020 and has held it in 24 quarters since.
  • California State Teachers Retirement System (CalSTRS)'s Keros Therapeutics position peaked at $1.68M in Q1 2024.
  • 132 funds tracked by Wall St. Rank held Keros Therapeutics as of Q2 2026.

Based on California State Teachers Retirement System (CalSTRS)'s 13F filing for Q2 2026, filed 24 Aug 2026.