Dimensional Fund Advisors
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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
Q2 		$41.6M Buy
569,018
+174,571
+44% +$12M 0.01% 1691
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 $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
RCM
RA Capital Management Boston, Massachusetts $11.5B AUM 168.77% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
VPC
Vestal Point Capital New York $4.28B AUM 239% 1-Year Est. Return
AVLSA
Atlas Venture Life Science Advisors Cambridge, Massachusetts $881M AUM 160.77% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Dimensional Fund Advisors's IRON Position: Q2 2026 in Review

Dimensional Fund Advisors increased its Disc Medicine (IRON) stake by 44% in Q2 2026, buying an estimated $12M and bringing the position to 569,018 shares worth $41.6M. The position accounts for 0.01% of the portfolio, ranked #1691.

Dimensional Fund Advisors first reported a position in IRON in Q3 2024 and has held it in 8 quarters since. 216 funds tracked by Wall St. Rank hold IRON as of Q2 2026.

  • Dimensional Fund Advisors held 569,018 shares of Disc Medicine worth $41.6M as of Q2 2026.
  • Dimensional Fund Advisors bought 174,571 Disc Medicine shares in Q2 2026, an estimated $12M.
  • Disc Medicine made up 0.01% of Dimensional Fund Advisors's portfolio in Q2 2026, its #1691 holding.
  • Dimensional Fund Advisors first reported a position in Disc Medicine in Q3 2024 and has held it in 8 quarters since.
  • 216 funds tracked by Wall St. Rank held Disc Medicine as of Q2 2026.

Based on Dimensional Fund Advisors's 13F filing for Q2 2026, filed 11 Aug 2026.