Dimensional Fund Advisors
IRON icon

Dimensional Fund Advisors’s Disc Medicine IRON Stock Holding History

Dimensional Fund Advisors’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 		$25.2M Buy
394,447
+170,872
+76% +$11.9M 0.01% 1862
2025
Q4 		$17.7M Sell
223,575
-6,848
-3% -$579K ﹤0.01% 2031
2025
Q3 		$15.2M Buy
230,423
+37,567
+19% +$2.23M ﹤0.01% 2132
2025
Q2 		$10.2M Buy
192,856
+53,463
+38% +$2.51M ﹤0.01% 2271
2025
Q1 		$6.92M Sell
139,393
-327
-0.2% -$18.2K ﹤0.01% 2392
2024
Q4 		$8.86M Buy
139,720
+86,154
+161% +$4.98M ﹤0.01% 2354
2024
Q3 		$2.63M Buy
+53,566
New +$2.51M ﹤0.01% 2717

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 $5.72T 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

Dimensional Fund Advisors's IRON Position: Q1 2026 in Review

Dimensional Fund Advisors increased its Disc Medicine (IRON) stake by 76% in Q1 2026, buying an estimated $11.9M and bringing the position to 394,447 shares worth $25.2M. The position accounts for 0.01% of the portfolio, ranked #1862.

Dimensional Fund Advisors first reported a position in IRON in Q3 2024 and has held it in 7 quarters since. 203 funds tracked by Wall St. Rank hold IRON as of Q1 2026.

  • Dimensional Fund Advisors held 394,447 shares of Disc Medicine worth $25.2M as of Q1 2026.
  • Dimensional Fund Advisors bought 170,872 Disc Medicine shares in Q1 2026, an estimated $11.9M.
  • Disc Medicine made up 0.01% of Dimensional Fund Advisors's portfolio in Q1 2026, its #1862 holding.
  • Dimensional Fund Advisors first reported a position in Disc Medicine in Q3 2024 and has held it in 7 quarters since.
  • 203 funds tracked by Wall St. Rank held Disc Medicine as of Q1 2026.

Based on Dimensional Fund Advisors's 13F filing for Q1 2026, filed 7 May 2026.