Nantahala Capital Management’s Disc Medicine IRON Stock Holding History

Nantahala Capital 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
2026 Q1	$1.64M	Sell	25,653 -107,147	-81%	-$7.44M	0.06%	137
2025 Q4	$10.5M	Sell	132,800 -155,000	-54%	-$13.1M	0.35%	66
2025 Q3	$19M	Hold	287,800	–	–	0.66%	34
2025 Q2	$15.2M	Buy	287,800 +139,409	+94%	+$6.55M	0.6%	39
2025 Q1	$7.37M	Sell	148,391 -1,609	-1%	-$89.5K	0.29%	54
2024 Q4	$9.51M	Hold	150,000	–	–	0.41%	47
2024 Q3	$7.37M	Hold	150,000	–	–	0.37%	59
2024 Q2	$6.76M	Buy	+150,000	New	+$5.1M	0.4%	51
2023 Q2	–	Sell	-89,538	Closed	-$1.9M	–	129
2023 Q1	$1.9M	Sell	89,538 -73,224	-45%	-$1.63M	0.15%	77
2022 Q4	$3.06M	Buy	162,762 +154,173	+1,795%	+$7.68M	0.2%	67
2022 Q3	$423K	Buy	+8,589	New	+$405K	0.03%	99

Other funds holding IRON

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 New York $5.72T AUM 30.48% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

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

Nantahala Capital Management's IRON Position: Q1 2026 in Review

Nantahala Capital Management reduced its Disc Medicine (IRON) stake by 81% in Q1 2026, selling an estimated $7.44M and leaving 25,653 shares worth $1.64M. The position accounts for 0.06% of the portfolio, ranked #137.

Nantahala Capital Management first reported a position in IRON in Q3 2022 and has held it in 11 quarters since. The position peaked at $19M in Q3 2025. 203 funds tracked by Wall St. Rank hold IRON as of Q1 2026.

Nantahala Capital Management held 25,653 shares of Disc Medicine worth $1.64M as of Q1 2026.
Nantahala Capital Management sold 107,147 Disc Medicine shares in Q1 2026, an estimated $7.44M.
Disc Medicine made up 0.06% of Nantahala Capital Management's portfolio in Q1 2026, its #137 holding.
Nantahala Capital Management first reported a position in Disc Medicine in Q3 2022 and has held it in 11 quarters since.
Nantahala Capital Management's Disc Medicine position peaked at $19M in Q3 2025.
203 funds tracked by Wall St. Rank held Disc Medicine as of Q1 2026.

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