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Frazier Life Sciences Management’s Disc Medicine IRON Stock Holding History

Frazier Life Sciences 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
Q1 		$86.6M Buy
1,354,852
+94,852
+8% +$6.58M 2.23% 13
2025
Q4 		$100M Sell
1,260,000
-178,534
-12% -$15.1M 2.69% 10
2025
Q3 		$95.1M Sell
1,438,534
-216,300
-13% -$12.9M 2.85% 10
2025
Q2 		$87.6M Sell
1,654,834
-100,000
-6% -$4.7M 3.5% 8
2025
Q1 		$87.1M Hold
1,754,834
– – 3.98% 7
2024
Q4 		$111M Hold
1,754,834
– – 4.62% 6
2024
Q3 		$86.2M Hold
1,754,834
– – 3.46% 10
2024
Q2 		$79.1M Buy
1,754,834
+969,834
+124% +$33M 3.7% 9
2024
Q1 		$48.9M Hold
785,000
– – 2.06% 15
2023
Q4 		$45.3M Buy
785,000
+130,000
+20% +$6.66M 2.42% 13
2023
Q3 		$30.8M Hold
655,000
– – 2.04% 15
2023
Q2 		$29.1M Buy
+655,000
New +$23.2M 1.74% 16

Other funds holding IRON

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
RCM
RA Capital Management Boston, Massachusetts $9.44B AUM 157.3% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T 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
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
AVLSA
Atlas Venture Life Science Advisors Cambridge, Massachusetts $790M AUM 223.66% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
TCM
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