Siren, L.L.C.: 13F holdings

CIK 20052452026Q2

Positions116
Reported value$4.9bn
Filed2026-08-13

Change since last quarter

Positions116 (+16 vs prior quarter)
Reported value$4.9bn (+37.0%)

Top 10 holdings

SecuritySharesValueWeight
SRRK Scholar Rock Holding Corp9,575,013$526.6m10.7%
KYMR Kymera Therapeutics Inc2,935,830$336.7m6.8%
ERAS Erasca Inc11,397,781$208.8m4.2%
MANE Veradermics Inc1,655,374$203.5m4.1%
TNGX Tango Therapeutics Inc6,179,364$193.2m3.9%
RVMD Revolution Medicines Inc900,000$168.6m3.4%
BCAX Bicara Therapeutics Inc5,602,970$166.4m3.4%
ARWR Arrowhead Pharmaceuticals Inc1,715,476$139.8m2.8%
ONC BeOne Medicines AG465,000$132.5m2.7%
EWTX Edgewise Therapeutics Inc3,184,629$129.4m2.6%

Get the full book

import finzdata as yf
yf.Client().manager_holdings(cik="2005245")

Every position, quarter by quarter since 2013, with adds, trims and exits, on the look-back bundles.

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