CIK 2005245
Siren, L.L.C.
Institutional 13F holdings & portfolio
Holdings
113
Portfolio Value
$1M+
Latest Report
Dec 31, 2025
Report Periods
2
Holdings
13F filings as of Dec 31, 2025 · Showing 1–50 of 113
| Ticker | Company | Shares | Value | Type |
|---|---|---|---|---|
| SRRK | Scholar Rock Holding Corp | 10.8M | $1M+ | SH |
| KYMR | Kymera Therapeutics Inc | 3.3M | $1M+ | SH |
| ONC | BeOne Medicines AG | 500K | $1M+ | SH |
| EWTX | Edgewise Therapeutics Inc | 4.5M | $1M+ | SH |
| RVMD | Revolution Medicines Inc | 1.3M | $1M+ | SH |
| CNTA | Centessa Pharmaceuticals PLC | 4.0M | $1M+ | SH |
| ARWR | Arrowhead Pharmaceuticals Inc | 1.5M | $1M+ | SH |
| BCAX | Bicara Therapeutics Inc | 5.2M | $1M+ | SH |
| OLMA | Olema Pharmaceuticals Inc | 3.3M | $1M+ | SH |
| IRON | Disc Medicine Inc | 988K | $1M+ | SH |
| GPCR | Structure Therapeutics Inc | 1.1M | $1M+ | SH |
| TNGX | Tango Therapeutics Inc | 8.2M | $1M+ | SH |
| STOK | Stoke Therapeutics Inc | 2.2M | $1M+ | SH |
| CRNX | Crinetics Pharmaceuticals Inc | 1.5M | $1M+ | SH |
| DYN | Dyne Therapeutics Inc | 3.5M | $1M+ | SH |
| APLS | Apellis Pharmaceuticals Inc | 2.6M | $1M+ | SH |
| COGT | Cogent Biosciences Inc | 1.6M | $1M+ | SH |
| SEPN | Septerna Inc | 2.0M | $1M+ | SH |
| TSHA | Taysha Gene Therapies Inc | 10.1M | $1M+ | SH |
| RYTM | Rhythm Pharmaceuticals Inc | 500K | $1M+ | SH |
| ASND | Ascendis Pharma A/S | 236K | $1M+ | SH |
| RAPT | RAPT Therapeutics Inc | 1.4M | $1M+ | SH |
| TBLA | Taboola.com Ltd | 10.0M | $1M+ | SH |
| LXRX | Lexicon Pharmaceuticals Inc | 38.9M | $1M+ | SH |
| ZYME | Zymeworks Inc | 1.7M | $1M+ | SH |
| SLDB | Solid Biosciences Inc | 7.7M | $1M+ | SH |
| WVE | WAVE Life Sciences Ltd | 2.5M | $1M+ | SH |
| XENE | Xenon Pharmaceuticals Inc | 813K | $1M+ | SH |
| DBVT | Dbv Technologies SA | 1.9M | $1M+ | SH |
| RCUS | Arcus Biosciences Inc | 1.4M | $1M+ | SH |
| ERAS | Erasca Inc | 8.8M | $1M+ | SH |
| ENGN | enGene Holdings Inc | 3.3M | $1M+ | SH |
| TRVI | Trevi Therapeutics Inc | 2.3M | $1M+ | SH |
| SYRE | Spyre Therapeutics Inc | 819K | $1M+ | SH |
| MLYS | Mineralys Therapeutics Inc | 700K | $1M+ | SH |
| DNLI | Denali Therapeutics Inc | 1.4M | $1M+ | SH |
| FULC | Fulcrum Therapeutics Inc | 1.9M | $1M+ | SH |
| RAPP | Rapport Therapeutics Inc | 708K | $1M+ | SH |
| SLN | Silence Therapeutics PLC | 2.9M | $1M+ | SH |
| IHS | IHS Holding Limited | 2.4M | $1M+ | SH |
| GOSS | Gossamer Bio Inc | 5.2M | $1M+ | SH |
| UPB | Upstream Bio Inc | 588K | $1M+ | SH |
| BCYC | Bicycle Therapeutics PLC | 2.0M | $1M+ | SH |
| MNPR | Monopar Therapeutics Inc | 212K | $1M+ | SH |
| CGEM | Cullinan Therapeutics Inc | 1.2M | $1M+ | SH |
| SION | Sionna Therapeutics Inc | 300K | $1M+ | SH |
| IKT | Inhibikase Therapeutics Inc | 5.8M | $1M+ | SH |
| NBP | NovaBridge Biosciences | 3.0M | $1M+ | SH |
| AMZN | Amazon.com Inc | 52K | $1M+ | SH |
| NMRA | Neumora Therapeutics Inc | 6.3M | $1M+ | SH |