Woodline Partners’s Disc Medicine IRON Stock Holding History

Woodline Partners’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	$70.1M	Hold	958,281	–	–	0.22%	113
2026 Q1	$61.3M	Buy	958,281 +448	+0%	+$31.1K	0.23%	104
2025 Q4	$76.1M	Buy	957,833 +90,878	+10%	+$7.68M	0.29%	69
2025 Q3	$57.3M	Hold	866,955	–	–	0.27%	89
2025 Q2	$45.9M	Buy	866,955 +364,725	+73%	+$17.1M	0.24%	112
2025 Q1	$24.9M	Buy	502,230 +105,630	+27%	+$5.87M	0.16%	186
2024 Q4	$25.1M	Buy	396,600 +19,538	+5%	+$1.13M	0.17%	174
2024 Q3	$18.5M	Buy	377,062 +109,199	+41%	+$5.13M	0.16%	204
2024 Q2	$12.1M	Buy	+267,863	New	+$9.1M	0.12%	229
2023 Q3	–	Sell	-68,146	Closed	-$3.03M	–	670
2023 Q2	$3.03M	Buy	+68,146	New	+$2.42M	0.04%	372
2021 Q4	–	Sell	-6,266	Closed	-$759K	–	746
2021 Q3	$759K	Buy	6,266 +4,992	+392%	+$682K	0.01%	527
2021 Q2	$247K	Sell	1,274 -10,003	-89%	-$3.29M	﹤0.01%	484
2021 Q1	$4.58M	Buy	+11,277	New	+$5.03M	0.1%	202

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

Woodline Partners's IRON Position: Q2 2026 in Review

Woodline Partners held its Disc Medicine (IRON) position steady in Q2 2026 at 958,281 shares worth $70.1M. The position accounts for 0.22% of the portfolio, ranked #113.

Woodline Partners first reported a position in IRON in Q1 2021 and has held it in 13 quarters since. The position peaked at $76.1M in Q4 2025. 217 funds tracked by Wall St. Rank hold IRON as of Q2 2026.

Woodline Partners held 958,281 shares of Disc Medicine worth $70.1M as of Q2 2026.
Woodline Partners left its Disc Medicine share count unchanged in Q2 2026.
Disc Medicine made up 0.22% of Woodline Partners's portfolio in Q2 2026, its #113 holding.
Woodline Partners first reported a position in Disc Medicine in Q1 2021 and has held it in 13 quarters since.
Woodline Partners's Disc Medicine position peaked at $76.1M in Q4 2025.
217 funds tracked by Wall St. Rank held Disc Medicine as of Q2 2026.

Based on Woodline Partners's 13F filing for Q2 2026, filed 14 Aug 2026.