Aberdeen Group
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Aberdeen Group’s Disc Medicine IRON Stock Holding History

Aberdeen Group’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 		$24M Buy
375,614
+141,256
+60% +$9.8M 0.04% 367
2025
Q4 		$18.6M Buy
234,358
+202,297
+631% +$17.1M 0.03% 457
2025
Q3 		$2.12M Hold
32,061
– – ﹤0.01% 775
2025
Q2 		$1.7M Buy
+32,061
New +$1.51M ﹤0.01% 794

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

Aberdeen Group's IRON Position: Q1 2026 in Review

Aberdeen Group increased its Disc Medicine (IRON) stake by 60% in Q1 2026, buying an estimated $9.8M and bringing the position to 375,614 shares worth $24M. The position accounts for 0.04% of the portfolio, ranked #367.

Aberdeen Group first reported a position in IRON in Q2 2025 and has held it in 4 quarters since. 203 funds tracked by Wall St. Rank hold IRON as of Q1 2026.

  • Aberdeen Group held 375,614 shares of Disc Medicine worth $24M as of Q1 2026.
  • Aberdeen Group bought 141,256 Disc Medicine shares in Q1 2026, an estimated $9.8M.
  • Disc Medicine made up 0.04% of Aberdeen Group's portfolio in Q1 2026, its #367 holding.
  • Aberdeen Group first reported a position in Disc Medicine in Q2 2025 and has held it in 4 quarters since.
  • 203 funds tracked by Wall St. Rank held Disc Medicine as of Q1 2026.

Based on Aberdeen Group's 13F filing for Q1 2026, filed 29 Apr 2026.