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Atom Investors’s Disc Medicine IRON Stock Holding History

Atom Investors’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 		– Sell
-12,162
Closed -$778K – 923
2026
Q1 		$778K Buy
+12,162
New +$844K 0.06% 402
2025
Q2 		– Sell
-22,561
Closed -$1.12M – 697
2025
Q1 		$1.12M Buy
+22,561
New +$1.25M 0.14% 199
2021
Q4 		– Sell
-3,426
Closed -$415K – 340
2021
Q3 		$415K Buy
+3,426
New +$468K 0.03% 216

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

Atom Investors's IRON Position: Q2 2026 in Review

Atom Investors sold out of Disc Medicine (IRON) in Q2 2026, closing a stake of 12,162 shares — an estimated $778K sold.

Atom Investors first reported a position in IRON in Q3 2021 and held it in 3 quarters. The position peaked at $1.12M in Q1 2025. 217 funds tracked by Wall St. Rank hold IRON as of Q2 2026.

  • Atom Investors reported no remaining Disc Medicine position as of Q2 2026 after selling out during the quarter.
  • Atom Investors sold 12,162 Disc Medicine shares in Q2 2026, an estimated $778K.
  • Atom Investors first reported a position in Disc Medicine in Q3 2021 and held it in 3 quarters.
  • Atom Investors's Disc Medicine position peaked at $1.12M in Q1 2025.
  • 217 funds tracked by Wall St. Rank held Disc Medicine as of Q2 2026.

Based on Atom Investors's 13F filing for Q2 2026, filed 14 Aug 2026.