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
2026 Q2	$4.65M	Buy	63,538 +10,000	+19%	+$687K	0.61%	57
2026 Q1	$3.42M	Buy	+53,538	New	+$3.72M	0.54%	62
2024 Q3	–	Sell	-58,044	Closed	-$2.62M	–	128
2024 Q2	$2.62M	Buy	58,044 +9,158	+19%	+$311K	0.36%	78
2024 Q1	$3.04M	Buy	+48,886	New	+$3.17M	0.43%	63
2023 Q4	–	Sell	-111,398	Closed	-$5.23M	–	101
2023 Q3	$5.23M	Sell	111,398 -59,180	-35%	-$2.96M	0.95%	36
2023 Q2	$7.57M	Sell	170,578 -49,435	-22%	-$1.75M	1.18%	25
2023 Q1	$4.66M	Buy	+220,013	New	+$4.9M	0.78%	46

Other funds holding IRON

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

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 New York $1.81T AUM 41.13% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

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 Malvern, Pennsylvania $4.68T AUM

Sphera Funds Management's IRON Position: Q2 2026 in Review

Sphera Funds Management increased its Disc Medicine (IRON) stake by 19% in Q2 2026, buying an estimated $687K and bringing the position to 63,538 shares worth $4.65M. The position accounts for 0.61% of the portfolio, ranked #57.

Sphera Funds Management first reported a position in IRON in Q1 2023 and has held it in 7 quarters since. The position peaked at $7.57M in Q2 2023. 216 funds tracked by Wall St. Rank hold IRON as of Q2 2026.

Sphera Funds Management held 63,538 shares of Disc Medicine worth $4.65M as of Q2 2026.
Sphera Funds Management bought 10,000 Disc Medicine shares in Q2 2026, an estimated $687K.
Disc Medicine made up 0.61% of Sphera Funds Management's portfolio in Q2 2026, its #57 holding.
Sphera Funds Management first reported a position in Disc Medicine in Q1 2023 and has held it in 7 quarters since.
Sphera Funds Management's Disc Medicine position peaked at $7.57M in Q2 2023.
216 funds tracked by Wall St. Rank held Disc Medicine as of Q2 2026.

Based on Sphera Funds Management's 13F filing for Q2 2026, filed 14 Aug 2026.