California State Teachers Retirement System (CalSTRS)
KRRO icon

California State Teachers Retirement System (CalSTRS)’s Korro Bio KRRO Stock Holding History

California State Teachers Retirement System (CalSTRS)’s Portfolio KRRO Stock Details KRRO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-408
Closed -$3.27K – 2996
2025
Q4 		$3.27K Sell
408
-8
-2% -$187 ﹤0.01% 2999
2025
Q3 		$19.9K Sell
416
-26
-6% -$577 ﹤0.01% 2561
2025
Q2 		$5.52K Hold
442
– – ﹤0.01% 2892
2025
Q1 		$7.7K Sell
442
-4,408
-91% -$131K ﹤0.01% 2847
2024
Q4 		$185K Buy
4,850
+4,408
+997% +$227K ﹤0.01% 2354
2024
Q3 		$14.8K Hold
442
– – ﹤0.01% 2745
2024
Q2 		$15K Buy
+442
New +$24.4K ﹤0.01% 2713
2022
Q2 		– Sell
-283
Closed -$30K – 3232
2022
Q1 		$30K Sell
283
-63
-18% -$12K ﹤0.01% 3131
2021
Q4 		$89K Sell
346
-393
-53% -$119K ﹤0.01% 3040
2021
Q3 		$261K Sell
739
-144
-16% -$56.7K ﹤0.01% 2641
2021
Q2 		$440K Buy
883
+126
+17% +$61.5K ﹤0.01% 2712
2021
Q1 		$360K Sell
757
-3
-0.4% -$5.83K ﹤0.01% 2660
2020
Q4 		$1.34M Hold
760
– – ﹤0.01% 1858
2020
Q3 		$730K Sell
760
-90
-11% -$96.6K ﹤0.01% 2057
2020
Q2 		$988K Buy
850
+672
+378% +$607K ﹤0.01% 1859
2020
Q1 		$158K Buy
178
+2
+1% +$2.16K ﹤0.01% 2656
2019
Q4 		$154K Buy
+176
New +$137K ﹤0.01% 2856

Other funds holding KRRO

LCM
Lynx1 Capital Management San Juan, Puerto Rico $633M AUM 173.22% 1-Year Est. Return
NMC
NEA Management Company Timonium, Maryland $1.76B AUM 223.33% 1-Year Est. Return
AVLSA
Atlas Venture Life Science Advisors Cambridge, Massachusetts $790M AUM 223.66% 1-Year Est. Return
Balyasny Asset Management
Balyasny Asset Management Chicago, Illinois $77.1B AUM 42.89% 1-Year Est. Return
VA
VR Adviser New York $2.68B AUM 422.73% 1-Year Est. Return
AAA
Affinity Asset Advisors New York $1.94B AUM 374.45% 1-Year Est. Return
NCM
Nantahala Capital Management New Canaan, Connecticut $2.72B AUM 121.58% 1-Year Est. Return
ACM
ADAR1 Capital Management Austin, Texas $1.7B AUM 340.85% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $13.6B AUM 173.98% 1-Year Est. Return

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

California State Teachers Retirement System (CalSTRS) sold out of Korro Bio (KRRO) in Q1 2026, closing a stake of 408 shares — an estimated $3.27K sold.

California State Teachers Retirement System (CalSTRS) first reported a position in KRRO in Q4 2019 and held it in 17 quarters. The position peaked at $1.34M in Q4 2020. 99 funds tracked by Wall St. Rank hold KRRO as of Q1 2026.

  • California State Teachers Retirement System (CalSTRS) reported no remaining Korro Bio position as of Q1 2026 after selling out during the quarter.
  • California State Teachers Retirement System (CalSTRS) sold 408 Korro Bio shares in Q1 2026, an estimated $3.27K.
  • California State Teachers Retirement System (CalSTRS) first reported a position in Korro Bio in Q4 2019 and held it in 17 quarters.
  • California State Teachers Retirement System (CalSTRS)'s Korro Bio position peaked at $1.34M in Q4 2020.
  • 99 funds tracked by Wall St. Rank held Korro Bio as of Q1 2026.

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