Teacher Retirement System of Texas
IRON icon

Teacher Retirement System of Texas’s Disc Medicine IRON Stock Holding History

Teacher Retirement System of Texas’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 		$201K Sell
3,144
-470
-13% -$32.6K ﹤0.01% 1413
2025
Q4 		$287K Sell
3,614
-1,873
-34% -$158K ﹤0.01% 1428
2025
Q3 		$363K Sell
5,487
-530
-9% -$31.5K ﹤0.01% 1660
2025
Q2 		$319K Buy
6,017
+1,052
+21% +$49.4K ﹤0.01% 1742
2025
Q1 		$246K Buy
4,965
+108
+2% +$6K ﹤0.01% 1826
2024
Q4 		$308K Buy
4,857
+396
+9% +$22.9K ﹤0.01% 1382
2024
Q3 		$219K Buy
+4,461
New +$209K ﹤0.01% 1415

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 $6.73T AUM 46.02% 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 $3.37T AUM 44.26% 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

Teacher Retirement System of Texas's IRON Position: Q1 2026 in Review

Teacher Retirement System of Texas reduced its Disc Medicine (IRON) stake by 13% in Q1 2026, selling an estimated $32.6K and leaving 3,144 shares worth $201K. The position accounts for ﹤0.01% of the portfolio, ranked #1413.

Teacher Retirement System of Texas first reported a position in IRON in Q3 2024 and has held it in 7 quarters since. The position peaked at $363K in Q3 2025. 203 funds tracked by Wall St. Rank hold IRON as of Q1 2026.

  • Teacher Retirement System of Texas held 3,144 shares of Disc Medicine worth $201K as of Q1 2026.
  • Teacher Retirement System of Texas sold 470 Disc Medicine shares in Q1 2026, an estimated $32.6K.
  • Disc Medicine made up ﹤0.01% of Teacher Retirement System of Texas's portfolio in Q1 2026, its #1413 holding.
  • Teacher Retirement System of Texas first reported a position in Disc Medicine in Q3 2024 and has held it in 7 quarters since.
  • Teacher Retirement System of Texas's Disc Medicine position peaked at $363K in Q3 2025.
  • 203 funds tracked by Wall St. Rank held Disc Medicine as of Q1 2026.

Based on Teacher Retirement System of Texas's 13F filing for Q1 2026, filed 30 Apr 2026.