RA CAPITAL MANAGEMENT, L.P.
Top Portfolio Positions
84 positions ·
$10,185,022,315 total
· as of Mar 31, 2026
| Ticker | Company | Shares | Value (USD) | % of Portfolio | Open |
|---|---|---|---|---|---|
| ASND |
Ascendis Pharma A/S
Healthcare
|
10,281,496 | $2,351,686,580 | 23.09% | |
| PCVX |
Vaxcyte, Inc.
Healthcare
|
24,449,198 | $1,420,742,894 | 13.95% | |
| RYTM |
Rhythm Pharmaceuticals, Inc.
Healthcare
|
6,666,837 | $579,814,813 | 5.69% | |
| TYRA |
Tyra Biosciences, Inc.
Healthcare
|
12,198,625 | $467,207,337 | 4.59% | |
| SION |
Sionna Therapeutics, Inc.
Healthcare
|
9,905,045 | $397,093,254 | 3.90% | |
| EWTX |
Edgewise Therapeutics, Inc.
Healthcare
|
10,428,437 | $328,495,765 | 3.23% | |
| NAMS |
NewAmsterdam Pharma Co N.V.
Healthcare
|
9,550,191 | $305,701,613 | 3.00% | |
| NUVL |
Nuvalent, Inc.
Healthcare
|
2,534,145 | $259,623,155 | 2.55% | |
| DNTH |
Dianthus Therapeutics, Inc. /DE/
Healthcare
|
2,611,733 | $219,176,633 | 2.15% | |
| MLYS |
Mineralys Therapeutics, Inc.
Healthcare
|
7,692,750 | $208,396,597 | 2.05% |
Portfolio Trend
25 quarters · across all stocks
Holdings in IRON
Shares Held
Position Value (USD)
6 quarters on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $156,667,130 | 2,450,221 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $156,924,642 | 1,976,132 | Shares | Sole | 2026-02-17 | |
| 2025-12-30 | $171,381,966 | 2,228,924 | Shares | Sole | 2026-01-07 | |
| 2025-09-30 | $104,215,164 | 1,577,106 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $83,523,533 | 1,577,106 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $78,287,541 | 1,577,106 | Shares | Sole | 2025-05-15 | |
| No 13F history on record for this holder in this stock. | ||||||