Siren, L.L.C.

CIK
0002005245
City
New York
State / Country
NY

Top Portfolio Positions

96 positions · $3,036,670,995 total · as of Dec 31, 2025
Ticker Company Shares Value (USD) % of Portfolio
SRRK
Scholar Rock Holding Corp
Healthcare
10,825,013 $476,841,822 15.70%
KYMR
Kymera Therapeutics, Inc.
Healthcare
3,286,830 $255,748,242 8.42%
ONC
BeOne Medicines Ltd.
Healthcare
500,000 $151,905,000 5.00%
EWTX
Edgewise Therapeutics, Inc.
Healthcare
4,529,990 $112,411,701 3.70%
RVMD
Revolution Medicines, Inc.
Healthcare
1,335,075 $106,338,723 3.50%
CNTA
Centessa Pharmaceuticals plc
Healthcare
4,027,517 $100,728,200 3.32%
ARWR
Arrowhead Pharmaceuticals, Inc.
Healthcare
1,500,476 $99,616,601 3.28%
BCAX
Bicara Therapeutics Inc.
Healthcare
5,216,969 $87,801,588 2.89%
OLMA
Olema Pharmaceuticals, Inc.
Healthcare
3,300,700 $82,517,500 2.72%
IRON
Disc Medicine, Inc.
Healthcare
988,401 $78,488,923 2.58%

Portfolio Trend

6 quarters · across all stocks

Holdings in SVRA

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Report Date Value (USD) Shares
2025-12-31 $6,030,000 1,000,000