California State Teachers Retirement System (CalSTRS)
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California State Teachers Retirement System (CalSTRS)’s Sutro Biopharma STRO Stock Holding History

California State Teachers Retirement System (CalSTRS)’s Portfolio STRO Stock Details STRO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$7.3K Buy
+220
New +$6.86K ﹤0.01% 2399
2025
Q2 		– Sell
-593
Closed -$3.86K – 3169
2025
Q1 		$3.86K Hold
593
– – ﹤0.01% 2951
2024
Q4 		$10.9K Hold
593
– – ﹤0.01% 2830
2024
Q3 		$20.5K Hold
593
– – ﹤0.01% 2594
2024
Q2 		$17.4K Sell
593
-19
-3% -$751 ﹤0.01% 2651
2024
Q1 		$34.6K Sell
612
-378
-38% -$16.7K ﹤0.01% 2554
2023
Q4 		$42.5K Sell
990
-337
-25% -$10.7K ﹤0.01% 2652
2023
Q3 		$46.1K Sell
1,327
-674
-34% -$29.4K ﹤0.01% 2747
2023
Q2 		$93K Sell
2,001
-3
-0.1% -$149 ﹤0.01% 2671
2023
Q1 		$92.6K Sell
2,004
-148
-7% -$9.39K ﹤0.01% 2704
2022
Q4 		$174K Buy
2,152
+221
+11% +$15.4K ﹤0.01% 2642
2022
Q3 		$107K Buy
1,931
+49
+3% +$2.9K ﹤0.01% 2800
2022
Q2 		$98K Sell
1,882
-2,725
-59% -$152K ﹤0.01% 2887
2022
Q1 		$379K Sell
4,607
-481
-9% -$45.8K ﹤0.01% 2485
2021
Q4 		$757K Buy
5,088
+108
+2% +$19.3K ﹤0.01% 2312
2021
Q3 		$941K Sell
4,980
-999
-17% -$190K ﹤0.01% 2179
2021
Q2 		$1.11M Buy
5,979
+1,077
+22% +$211K ﹤0.01% 2142
2021
Q1 		$1.12M Buy
4,902
+684
+16% +$162K ﹤0.01% 2083
2020
Q4 		$916K Buy
4,218
+296
+8% +$49K ﹤0.01% 2094
2020
Q3 		$394K Buy
3,922
+1,392
+55% +$132K ﹤0.01% 2407
2020
Q2 		$196K Buy
2,530
+835
+49% +$80.1K ﹤0.01% 2728
2020
Q1 		$173K Buy
1,695
+20
+1% +$2.1K ﹤0.01% 2620
2019
Q4 		$184K Hold
1,675
– – ﹤0.01% 2813
2019
Q3 		$152K Hold
1,675
– – ﹤0.01% 2872
2019
Q2 		$191K Buy
1,675
+674
+67% +$74.3K ﹤0.01% 2863
2019
Q1 		$114K Sell
1,001
-156
-13% -$16.2K ﹤0.01% 2890
2018
Q4 		$104K Buy
+1,157
New +$140K ﹤0.01% 2921

Other funds holding STRO

PA
Perceptive Advisors New York $6.66B AUM 360.84% 1-Year Est. Return
BI
BVF Inc San Francisco, California $3.91B AUM 304.52% 1-Year Est. Return
AAA
Affinity Asset Advisors New York $2.21B AUM 431.26% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
SB
Samsara BioCapital Palo Alto, California $1.22B AUM 242.83% 1-Year Est. Return
KCM
Kynam Capital Management Princeton, New Jersey $1.81B AUM 192.15% 1-Year Est. Return
O
OrbiMed New York $5.4B AUM 163.13% 1-Year Est. Return
Balyasny Asset Management
Balyasny Asset Management Chicago, Illinois $80.2B AUM 51.53% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
EAM
Eventide Asset Management Boston, Massachusetts $7.48B AUM 104.76% 1-Year Est. Return

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

California State Teachers Retirement System (CalSTRS) opened a new position in Sutro Biopharma (STRO) in Q2 2026: 220 shares worth $7.3K. The stake represents ﹤0.01% of the portfolio and ranks #2399 among its holdings. This is a return to the name: California State Teachers Retirement System (CalSTRS) previously reported a position in STRO as recently as Q1 2025.

California State Teachers Retirement System (CalSTRS) first reported a position in STRO in Q4 2018 and has held it in 27 quarters since. The position peaked at $1.12M in Q1 2021. 100 funds tracked by Wall St. Rank hold STRO as of Q2 2026.

  • California State Teachers Retirement System (CalSTRS) held 220 shares of Sutro Biopharma worth $7.3K as of Q2 2026.
  • Sutro Biopharma was a new California State Teachers Retirement System (CalSTRS) position in Q2 2026.
  • Sutro Biopharma made up ﹤0.01% of California State Teachers Retirement System (CalSTRS)'s portfolio in Q2 2026, its #2399 holding.
  • California State Teachers Retirement System (CalSTRS) first reported a position in Sutro Biopharma in Q4 2018 and has held it in 27 quarters since.
  • California State Teachers Retirement System (CalSTRS)'s Sutro Biopharma position peaked at $1.12M in Q1 2021.
  • 100 funds tracked by Wall St. Rank held Sutro Biopharma as of Q2 2026.

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