California State Teachers Retirement System (CalSTRS)
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California State Teachers Retirement System (CalSTRS)’s Disc Medicine IRON Stock Holding History

California State Teachers Retirement System (CalSTRS)’s Portfolio IRON Stock Details IRON Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$2.2M Buy
34,382
+11,126
+48% +$772K ﹤0.01% 1465
2025
Q4 		$1.85M Buy
23,256
+1,163
+5% +$98.3K ﹤0.01% 1457
2025
Q3 		$1.46M Buy
22,093
+1,843
+9% +$110K ﹤0.01% 1585
2025
Q2 		$1.07M Buy
20,250
+98
+0.5% +$4.6K ﹤0.01% 1697
2025
Q1 		$1M Buy
20,152
+4,621
+30% +$257K ﹤0.01% 1701
2024
Q4 		$985K Sell
15,531
-1,436
-8% -$83.1K ﹤0.01% 1786
2024
Q3 		$834K Buy
16,967
+1,019
+6% +$47.8K ﹤0.01% 1886
2024
Q2 		$719K Buy
15,948
+4,148
+35% +$141K ﹤0.01% 1915
2024
Q1 		$735K Buy
11,800
+3,200
+37% +$207K ﹤0.01% 1966
2023
Q4 		$497K Sell
8,600
-360
-4% -$18.4K ﹤0.01% 2218
2023
Q3 		$421K Buy
8,960
+6,387
+248% +$319K ﹤0.01% 2288
2023
Q2 		$114K Buy
+2,573
New +$91.3K ﹤0.01% 2621
2022
Q2 		– Sell
-323
Closed -$13K – 3227
2022
Q1 		$13K Sell
323
-40
-11% -$2.1K ﹤0.01% 3186
2021
Q4 		$32K Sell
363
-118
-25% -$11.6K ﹤0.01% 3210
2021
Q3 		$58K Sell
481
-527
-52% -$72K ﹤0.01% 3099
2021
Q2 		$196K Buy
+1,008
New +$331K ﹤0.01% 2992

Other funds holding IRON

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
RCM
RA Capital Management Boston, Massachusetts $9.44B AUM 157.3% 1-Year Est. Return
BlackRock
BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
AVLSA
Atlas Venture Life Science Advisors Cambridge, Massachusetts $790M AUM 223.66% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
FLSM
Frazier Life Sciences Management Palo Alto, California $3.89B AUM 201.1% 1-Year Est. Return
TCM
TCG Crossover Management Palo Alto, California $3.5B AUM 1,165.83% 1-Year Est. Return