Arkolith/Funds/RA CAPITAL MANAGEMENT, L.P.

RA CAPITAL MANAGEMENT, L.P.

CIK: 1346824Q1 2026
Active Filer
Portfolio Value
$9.4B
Positions
96
New Buys
24
10 sold
Changes
17 ↑ / 2 ↓

Top HoldingsQ1 2026

96 total positions
#SecurityValueShares% PortChangeΔ Shares
1ASCENDIS PHARMA A/S - ADR
SPONSORED ADR
$2.4B10.28M24.9%
HELD
0
2VAXCYTE INC
COMMON STOCK
$666.8M11.47M7.1%
ADDED
+750.0K
3RHYTHM PHARMACEUTICALS INC
COMMON STOCK
$579.8M6.67M6.1%
HELD
0
4TYRA BIOSCIENCES INC
COMMON STOCK
$467.2M12.20M5.0%
HELD
0
5SIONNA THERAPEUTICS INC
COMMON STOCK
$397.1M9.91M4.2%
HELD
0
6EDGEWISE THERAPEUTICS INC
COMMON STOCK
$328.5M10.43M3.5%
HELD
0
7
NEWAMSTERDAM PHARMA CO NV
COMMON STOCK
$305.7M9.55M3.2%
HELD
0
8NUVALENT INC-A
COMMON STOCK
$259.6M2.53M2.8%
ADDED
+654.1K
9DIANTHUS THERAPEUTICS INC
COMMON STOCK
$219.2M2.61M2.3%
ADDED
+1.00M
10MINERALYS THERAPEUTICS INC
COMMON STOCK
$208.4M7.69M2.2%
ADDED
+369.0K
11SPYGLASS PHARMA INC
COMMON STOCK
$207.8M8.02M2.2%
NEW
12
WAVE LIFE SCIENCES LTD
COMMON STOCK
$195.6M26.98M2.1%
ADDED
+8.77M
13SEPTERNA INC
COMMON STOCK
$168.1M7.00M1.8%
HELD
0
14DISC MEDICINE INC
COMMON STOCK
$156.7M2.45M1.7%
ADDED
+474.1K
15JANUX THERAPEUTICS INC
COMMON STOCK
$155.5M11.19M1.6%
HELD
0
16BIOCRYST PHARMACEUTICALS INC
COMMON STOCK
$150.7M15.83M1.6%
HELD
0
17BICARA THERAPEUTICS INC
COMMON STOCK
$144.3M7.26M1.5%
ADDED
+300.0K
18PRAXIS PRECISION MEDICINES I
COMMON STOCK
$120.4M373.8K1.3%
HELD
0
19
GH RESEARCH PLC
COMMON STOCK
$107.9M7.68M1.1%
HELD
0
20ZAI LAB LTD-ADR
COMMON STOCK
$107.4M5.71M1.1%
NEW
21TAYSHA GENE THERAPIES INC
COMMON STOCK
$105.3M23.56M1.1%
HELD
0
22VOR BIOPHARMA INC
COMMON STOCK
$96.4M5.40M1.0%
HELD
0
23GERON CORP
COMMON STOCK
$95.0M63.77M1.0%
HELD
0
24ARS PHARMACEUTICALS INC
COMMON STOCK
$87.2M10.86M0.9%
HELD
0
25SAREPTA THERAPEUTICS INC
COMMON STOCK
$84.9M3.90M0.9%
NEW
Showing top 25 of 96 positions

Filing History

Q1 202686 pos
$9.4B
Q4 202572 pos
$9.8B

Data Source

Holdings data sourced from SEC EDGAR 13F-HR filings. Updated quarterly, approximately 45 days after quarter end. All data is public domain.

Last filed: May 15, 2026