Bain Capital Life Sciences Investors’s Disc Medicine IRON Stock Holding History

Bain Capital Life Sciences Investors’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	$9.03M	Buy	+141,234	New	+$9.8M	0.81%	17
2025 Q3	–	Sell	-583,500	Closed	-$30.9M	–	22
2025 Q2	$30.9M	Sell	583,500 -400,000	-41%	-$18.8M	3.87%	8
2025 Q1	$48.8M	Hold	983,500	–	–	7.22%	4
2024 Q4	$62.4M	Sell	983,500 -812,235	-45%	-$47M	7.33%	4
2024 Q3	$88.2M	Hold	1,795,735	–	–	9.18%	3
2024 Q2	$80.9M	Buy	1,795,735 +478,522	+36%	+$16.3M	8.89%	3
2024 Q1	$82M	Sell	1,317,213 -15,332	-1%	-$994K	6.59%	4
2023 Q4	$77M	Hold	1,332,545	–	–	7.38%	4
2023 Q3	$62.6M	Sell	1,332,545 -3	-0%	-$150	7%	5
2023 Q2	$59.2M	Sell	1,332,548 -658,366	-33%	-$23.4M	6.09%	5
2023 Q1	$42.2M	Buy	+1,990,914	New	+$44.4M	5.27%	4

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