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IRON
5 quarters

Position history for RA CAPITAL MANAGEMENT, L.P.'s holdings in DISC MEDICINE INC

RA CAPITAL MANAGEMENT, L.P. holds 2.5M shares of IRON (DISC MEDICINE INC), worth $156.7M as of 2026-Q1. The position was increased (+24.0% shares). IRON represents 1.7% of RA CAPITAL MANAGEMENT, L.P.'s portfolio.

Current Value

$156.7M

Current Shares

2.5M

Total Value Change

+$78.4M

Total Shares Change

+873,115

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q1
Latest
Increased
2.5M
+24.0%
$156.7M1.7%$64.36
58
2025-Q4
Increased
2M
+25.3%
$156.9M1.6%$76.89
59
2025-Q3
Unchanged
1.6M
0.0%
$104.2M1.3%$65.06
0
2025-Q2
Unchanged
1.6M
0.0%
$83.5M1.4%$54.50
0
2025-Q1
New
1.6M
-
$78.3M1.3%$52.36
68

Other major holders of IRON: FMR LLC, BlackRock, Inc.

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