Optiver Holding
IRON icon

Optiver Holding’s Disc Medicine IRON Stock Holding History

Optiver Holding’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 		$5.24K Buy
82
+12
+17% +$833 ﹤0.01% 1400
2025
Q4 		$5.56K Sell
70
-124
-64% -$10.5K ﹤0.01% 1315
2025
Q3 		$12.8K Buy
+194
New +$11.5K ﹤0.01% 1150

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

Optiver Holding's IRON Position: Q1 2026 in Review

Optiver Holding increased its Disc Medicine (IRON) stake by 17% in Q1 2026, buying an estimated $833 and bringing the position to 82 shares worth $5.24K. The position accounts for ﹤0.01% of the portfolio, ranked #1400.

Optiver Holding first reported a position in IRON in Q3 2025 and has held it in 3 quarters since. The position peaked at $12.8K in Q3 2025. 203 funds tracked by Wall St. Rank hold IRON as of Q1 2026.

  • Optiver Holding held 82 shares of Disc Medicine worth $5.24K as of Q1 2026.
  • Optiver Holding bought 12 Disc Medicine shares in Q1 2026, an estimated $833.
  • Disc Medicine made up ﹤0.01% of Optiver Holding's portfolio in Q1 2026, its #1400 holding.
  • Optiver Holding first reported a position in Disc Medicine in Q3 2025 and has held it in 3 quarters since.
  • Optiver Holding's Disc Medicine position peaked at $12.8K in Q3 2025.
  • 203 funds tracked by Wall St. Rank held Disc Medicine as of Q1 2026.

Based on Optiver Holding's 13F filing for Q1 2026, filed 15 May 2026.