Janus Henderson Group

Janus Henderson Group’s Disc Medicine IRON Stock Holding History

Janus Henderson 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	$739K	Hold	11,555	–	–	﹤0.01%	1826
2025 Q4	$918K	Sell	11,555 -350,149	-97%	-$29.6M	﹤0.01%	1719
2025 Q3	$23.9M	Sell	361,704 -1,192,257	-77%	-$70.9M	0.01%	569
2025 Q2	$82.3M	Buy	1,553,961 +130,702	+9%	+$6.14M	0.04%	300
2025 Q1	$74.5M	Buy	1,423,259 +205,444	+17%	+$11.4M	0.04%	302
2024 Q4	$77.2M	Buy	1,217,815 +467,988	+62%	+$27.1M	0.04%	306
2024 Q3	$36.8M	Buy	749,827 +303,954	+68%	+$14.3M	0.02%	451
2024 Q2	$20.1M	Sell	445,873 -75,900	-15%	-$2.58M	0.01%	568
2024 Q1	$32.5M	Buy	521,773 +78,595	+18%	+$5.1M	0.02%	468
2023 Q4	$25.6M	Sell	443,178 -57,202	-11%	-$2.93M	0.02%	495
2023 Q3	$23.5M	Buy	500,380 +1	+0%	+$50	0.02%	506
2023 Q2	$22.2M	Buy	500,379 +456,681	+1,045%	+$16.2M	0.01%	542
2023 Q1	$926K	Sell	43,698 -456,632	-91%	-$10.2M	﹤0.01%	1675
2022 Q4	$982K	Buy	+500,330	New	+$24.9M	﹤0.01%	1368

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 $5.7T 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 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