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Sphera Funds Management’s Disc Medicine IRON Stock Holding History

Sphera Funds Management’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
2024
Q2 		– Sell
-25,000
Closed -$1.56M – 130
2024
Q1 		$1.56M Buy
+25,000
New +$1.62M 0.22% 86

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

Sphera Funds Management's IRON Position: Q1 2026 in Review

Sphera Funds Management opened a new position in Disc Medicine (IRON) in Q1 2026: 53,538 shares worth $3.42M. The stake represents 0.54% of the portfolio and ranks #62 among its holdings. This is a return to the name: Sphera Funds Management previously reported a position in IRON as recently as Q2 2024.

Sphera Funds Management first reported a position in IRON in Q1 2023 and has held it in 6 quarters since. The position peaked at $7.57M in Q2 2023. 203 funds tracked by Wall St. Rank hold IRON as of Q1 2026.

  • Sphera Funds Management held 53,538 shares of Disc Medicine worth $3.42M as of Q1 2026.
  • Disc Medicine was a new Sphera Funds Management position in Q1 2026.
  • Disc Medicine made up 0.54% of Sphera Funds Management's portfolio in Q1 2026, its #62 holding.
  • Sphera Funds Management first reported a position in Disc Medicine in Q1 2023 and has held it in 6 quarters since.
  • Sphera Funds Management's Disc Medicine position peaked at $7.57M in Q2 2023.
  • 203 funds tracked by Wall St. Rank held Disc Medicine as of Q1 2026.

Based on Sphera Funds Management's 13F filing for Q1 2026, filed 15 May 2026.