Group One Trading
IRON icon

Group One Trading’s Disc Medicine IRON Stock Holding History

Group One Trading’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
2025
Q1 		– Sell
-400
Closed -$25.4K – 7953
2024
Q4 		$25.4K Sell
400
-10,100
-96% -$584K ﹤0.01% 5539
2024
Q3 		$516K Buy
10,500
+4,300
+69% +$202K ﹤0.01% 2840
2024
Q2 		$279K Buy
6,200
+5,100
+464% +$173K ﹤0.01% 3107
2024
Q1 		$68.5K Buy
1,100
+100
+10% +$6.48K ﹤0.01% 4447
2023
Q4 		$57.8K Buy
1,000
+900
+900% +$46.1K ﹤0.01% 4938
2023
Q3 		$4.7K Sell
100
-800
-89% -$40K ﹤0.01% 6731
2023
Q2 		$40K Buy
+900
New +$31.9K ﹤0.01% 5453
2022
Q4 		– Sell
-933
Closed -$46K – 7651
2022
Q3 		$46K Buy
933
+700
+300% +$33K ﹤0.01% 5471
2022
Q2 		$12K Buy
+233
New +$10.3K ﹤0.01% 6655
2022
Q1 		– Sell
-7
Closed -$1K – 8333
2021
Q4 		$1K Hold
7
– – ﹤0.01% 7992
2021
Q3 		$1K Sell
7
-63
-90% -$8.61K ﹤0.01% 8016
2021
Q2 		$14K Buy
+70
New +$23K ﹤0.01% 7376

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

Group One Trading's IRON Position: Q1 2026 in Review

Group One Trading opened a new position in Disc Medicine (IRON) in Q1 2026: 11 shares worth $703. The stake represents ﹤0.01% of the portfolio and ranks #7272 among its holdings. This is a return to the name: Group One Trading previously reported a position in IRON as recently as Q4 2024.

Group One Trading first reported a position in IRON in Q1 2021 and has held it in 9 quarters since. The position peaked at $271K in Q1 2021. 203 funds tracked by Wall St. Rank hold IRON as of Q1 2026.

  • Group One Trading held 11 shares of Disc Medicine worth $703 as of Q1 2026.
  • Disc Medicine was a new Group One Trading position in Q1 2026.
  • Disc Medicine made up ﹤0.01% of Group One Trading's portfolio in Q1 2026, its #7272 holding.
  • Group One Trading first reported a position in Disc Medicine in Q1 2021 and has held it in 9 quarters since.
  • Group One Trading's Disc Medicine position peaked at $271K in Q1 2021.
  • 203 funds tracked by Wall St. Rank held Disc Medicine as of Q1 2026.

Based on Group One Trading's 13F filing for Q1 2026, filed 13 May 2026.