Wellington Management Group

Wellington Management Group’s Disc Medicine IRON Stock Holding History

Wellington Management Group’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	$111M	Buy	1,735,376 +217,102	+14%	+$15.1M	0.02%	523
2025 Q4	$121M	Buy	1,518,274 +108,197	+8%	+$9.14M	0.02%	507
2025 Q3	$93.2M	Sell	1,410,077 -22,013	-2%	-$1.31M	0.02%	573
2025 Q2	$75.8M	Sell	1,432,090 -911,409	-39%	-$42.8M	0.01%	596
2025 Q1	$116M	Buy	2,343,499 +948,094	+68%	+$52.7M	0.02%	471
2024 Q4	$88.5M	Sell	1,395,405 -444,821	-24%	-$25.7M	0.02%	561
2024 Q3	$90.4M	Buy	1,840,226 +83,731	+5%	+$3.93M	0.02%	561
2024 Q2	$79.2M	Buy	1,756,495 +1,086,013	+162%	+$36.9M	0.01%	593
2024 Q1	$41.7M	Buy	670,482 +492,756	+277%	+$31.9M	0.01%	755
2023 Q4	$10.3M	Buy	177,726 +122,981	+225%	+$6.3M	﹤0.01%	1109
2023 Q3	$2.57M	Buy	54,745 +11,475	+27%	+$574K	﹤0.01%	1427
2023 Q2	$1.92M	Buy	+43,270	New	+$1.54M	﹤0.01%	1484
2021 Q3	–	Sell	-23,333	Closed	-$4.53M	–	2205
2021 Q2	$4.53M	Sell	23,333 -25,999	-53%	-$8.55M	﹤0.01%	1529
2021 Q1	$19.7M	Buy	+49,332	New	+$22M	﹤0.01%	1080

Other funds holding IRON

Fidelity Investments

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

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

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

Atlas Venture Life Science Advisors Cambridge, Massachusetts $790M AUM 223.66% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Frazier Life Sciences Management Palo Alto, California $3.89B AUM 201.1% 1-Year Est. Return

TCG Crossover Management Palo Alto, California $3.5B AUM 1,165.83% 1-Year Est. Return

JP Morgan Chase

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return