Siren, L.L.C.

CIK
2005245
City
New York
State / Country
NY

Top Portfolio Positions

99 positions · $3,590,811,251 total · as of Mar 31, 2026
Ticker Company Shares Value (USD) % of Portfolio
SRRK
Scholar Rock Holding Corp
Healthcare
10,825,013 $532,157,639 14.82%
KYMR
Kymera Therapeutics, Inc.
Healthcare
3,186,830 $265,431,070 7.39%
ERAS
Erasca, Inc.
Healthcare
11,244,246 $181,931,900 5.07%
EWTX
Edgewise Therapeutics, Inc.
Healthcare
4,430,263 $139,553,284 3.89%
ONC
BeOne Medicines Ltd.
Healthcare
465,000 $138,091,050 3.85%
TNGX
Tango Therapeutics, Inc.
Healthcare
5,657,105 $118,346,636 3.30%
BCAX
Bicara Therapeutics Inc.
Healthcare
5,802,970 $115,421,073 3.21%
RVMD
Revolution Medicines, Inc.
Healthcare
1,110,980 $108,042,805 3.01%
ARWR
Arrowhead Pharmaceuticals, Inc.
Healthcare
1,615,476 $101,290,345 2.82%
MANE
Veradermics, Inc
Healthcare
1,505,374 $95,064,368 2.65%

Holdings in CTMX

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Report Date Value (USD) Shares
2026-03-31 $16,251,241 3,457,711