Siren, L.L.C.

data from 30/09/2025

Capitalization

$ 2.556 B 32.28 %

Average holding period

3 ans

Performance

$ 427.306 M 26.59 %

Capitalization

Portfolio size

Portfolio performance

Portfolio performance %

Performance compared to S&P 500 (%)

Stock in Siren, L.L.C.

Date Ticket Name Weight Capitalization Share number First added Performance ($) Performance (%)
2025/09/30 SRRK Scholar Rock Holding Corp 13.48% 344.470 M $ 9250005 2024/09/30 16.835 M $ 5.14 %
2025/09/30 KYMR Kymera Therapeutics Inc 7.59% 194.033 M $ 3428150 2024/09/30 44.429 M $ 29.70 %
2025/09/30 BeOne Medicines AG 6.57% 167.962 M $ 492990 2024/09/30 50.300 M $ 40.74 %
2025/09/30 ARWR Arrowhead Pharmaceuticals Inc 3.60% 92.084 M $ 2669880 2024/09/30 49.900 M $ 118.29 %
2025/09/30 BCAX Bicara Therapeutics Inc 3.22% 82.376 M $ 5216969 2024/09/30 33.910 M $ 69.97 %
2025/09/30 CNTA Centessa Pharmaceuticals PLC 3.06% 78.267 M $ 3227517 2024/09/30 38.441 M $ 84.55 %
2025/09/30 CRNX Crinetics Pharmaceuticals Inc 2.75% 70.331 M $ 1688611 2024/09/30 21.766 M $ 44.82 %
2025/09/30 EWTX Edgewise Therapeutics Inc 2.47% 63.211 M $ 3897099 2024/09/30 9.829 M $ 23.72 %
2025/09/30 IRON Disc Medicine Inc 2.36% 60.358 M $ 913401 2025/03/31 14.424 M $ 24.77 %
2025/09/30 DYN Dyne Therapeutics Inc 2.34% 59.824 M $ 4729174 2024/09/30 15.138 M $ 32.88 %
2025/09/30 APLS Apellis Pharmaceuticals Inc 2.28% 58.349 M $ 2578396 2024/09/30 13.717 M $ 30.73 %
2025/09/30 RNA Avidity Biosciences Inc 2.19% 56.014 M $ 1285610 2024/09/30 16.848 M $ 53.42 %
2025/09/30 STOK Stoke Therapeutics Inc 2.07% 52.813 M $ 2247347 2024/12/31 27.305 M $ 107.05 %
2025/09/30 LXRX Lexicon Pharmaceuticals Inc 2.06% 52.541 M $ 38918903 2024/09/30 15.735 M $ 42.75 %
2025/09/30 RYTM Rhythm Pharmaceuticals Inc 1.98% 50.492 M $ 499975 2025/03/31 15.488 M $ 59.82 %
2025/09/30 TNGX Tango Therapeutics Inc 1.93% 49.419 M $ 5883188 2024/09/30 11.037 M $ 64.06 %
2025/09/30 RVMD Revolution Medicines Inc 1.91% 48.742 M $ 1043720 2024/09/30 9.303 M $ 26.94 %
2025/09/30 ASND Ascendis Pharma A/S 1.83% 46.892 M $ 235862 2024/09/30 6.446 M $ 15.19 %
2025/09/30 RZLT Rezolute Inc 1.79% 45.778 M $ 4870000 2025/09/30 0.000 $ 0.00 %
2025/09/30 SLDB Solid Biosciences Inc 1.79% 45.756 M $ 7415905 2024/09/30 9.641 M $ 26.69 %
2025/09/30 SEPN Septerna Inc 1.62% 41.429 M $ 2202514 2024/12/31 18.149 M $ 77.96 %
2025/09/30 RCUS Arcus Biosciences Inc 1.55% 39.604 M $ 2912077 2024/09/30 8.802 M $ 67.08 %
2025/09/30 TSHA Taysha Gene Therapies Inc 1.41% 36.018 M $ 11014737 2024/09/30 10.574 M $ 41.56 %
2025/09/30 TBLA Taboola.com Ltd 1.33% 33.996 M $ 9969495 2024/09/30 -2.492 M $ -6.83 %
2025/09/30 XENE Xenon Pharmaceuticals Inc 1.28% 32.632 M $ 812761 2024/09/30 7.193 M $ 28.27 %
2025/09/30 SLNO Soleno Therapeutics Inc 1.24% 31.592 M $ 467342 2024/12/31 -7.562 M $ -19.31 %
2025/09/30 RAPP Rapport Therapeutics Inc 1.22% 31.288 M $ 1053469 2024/09/30 6.937 M $ 161.21 %
2025/09/30 GPCR Structure Therapeutics Inc 1.12% 28.751 M $ 1026811 2025/09/30 0.000 $ 0.00 %
2025/09/30 WVE WAVE Life Sciences Ltd 1.06% 27.057 M $ 3696322 2024/09/30 3.031 M $ 12.62 %
2025/09/30 RELY Remitly Global Inc 1.03% 26.378 M $ 1618271 2024/09/30 -1.273 M $ -13.16 %
2025/09/30 COGT Cogent Biosciences Inc 0.97% 24.761 M $ 1724279 2025/06/30 6.134 M $ 100.00 %
2025/09/30 TRVI Trevi Therapeutics Inc 0.91% 23.212 M $ 2536867 2024/12/31 14.495 M $ 67.28 %
2025/09/30 NAMS NewAmsterdam Pharma Company NV 0.85% 21.777 M $ 765705 2024/09/30 12.336 M $ 57.04 %
2025/09/30 KRRO Korro Bio Inc 0.78% 20.058 M $ 418833 2024/09/30 14.827 M $ 283.43 %
2025/09/30 ERAS Erasca Inc 0.75% 19.091 M $ 8757249 2024/09/30 7.969 M $ 71.65 %
2025/09/30 IHS IHS Holding Limited 0.63% 16.078 M $ 2357520 2024/09/30 2.970 M $ 22.66 %
2025/09/30 QURE Uniqure NV 0.63% 16.063 M $ 275200 2025/09/30 0.000 $ 0.00 %
2025/09/30 BCYC Bicycle Therapeutics PLC 0.61% 15.579 M $ 2012752 2024/12/31 1.590 M $ 11.37 %
2025/09/30 SLN Silence Therapeutics PLC 0.59% 15.110 M $ 2911438 2024/09/30 -1.776 M $ -10.52 %
2025/09/30 RAPT RAPT Therapeutics Inc 0.59% 14.970 M $ 580466 2025/09/30 0.000 $ 0.00 %
2025/09/30 UPB Upstream Bio Inc 0.58% 14.831 M $ 788450 2024/12/31 6.174 M $ 71.31 %
2025/09/30 GOSS Gossamer Bio Inc 0.54% 13.700 M $ 5208968 2024/09/30 7.293 M $ 113.82 %
2025/09/30 AVBP Arrivent Biopharma Inc 0.51% 12.915 M $ 700000 2025/06/30 -2.324 M $ -15.25 %
2025/09/30 AMZN Amazon.com Inc 0.50% 12.845 M $ 58500 2024/09/30 10.170 K $ 0.08 %
2025/09/30 ORIC Oric Pharmaceuticals Inc 0.47% 12.091 M $ 1007575 2024/09/30 1.864 M $ 18.23 %
2025/09/30 DNLI Denali Therapeutics Inc 0.47% 11.928 M $ 821513 2024/09/30 435.401 K $ 3.79 %
2025/09/30 IONQ IONQ Inc 0.41% 10.455 M $ 170000 2024/09/30 3.150 M $ 43.12 %
2025/09/30 SION Sionna Therapeutics Inc 0.37% 9.558 M $ 325000 2025/03/31 3.919 M $ 69.51 %
2025/09/30 CRWD CrowdStrike Holdings Inc 0.35% 9.072 M $ 18500 2024/09/30 -350.205 K $ -3.72 %
2025/09/30 MSFT Microsoft Corp 0.35% 8.883 M $ 17150 2024/09/30 331.721 K $ 4.13 %
2025/09/30 SEER Seer Inc 0.34% 8.680 M $ 4000000 2024/09/30 119.999 K $ 1.40 %
2025/09/30 Nebius Group NV 0.32% 8.151 M $ 72600 2024/12/31 2.904 M $ 102.91 %
2025/09/30 NMRA Neumora Therapeutics Inc 0.31% 7.932 M $ 4358283 2024/09/30 4.736 M $ 148.19 %
2025/09/30 TSM Taiwan Semiconductor Manufacturing Co Ltd 0.31% 7.876 M $ 28200 2024/09/30 1.610 M $ 23.31 %
2025/09/30 CRM Salesforce Inc 0.28% 7.134 M $ 30100 2025/03/31 -806.594 K $ -13.09 %
2025/09/30 CGEM Cullinan Therapeutics Inc 0.28% 7.077 M $ 1193410 2024/09/30 -1.909 M $ -21.25 %
2025/09/30 NVDA NVIDIA Corp 0.27% 6.994 M $ 37485 2024/09/30 1.429 M $ 18.10 %
2025/09/30 NOW ServiceNow Inc 0.26% 6.558 M $ 7126 2024/09/30 -552.582 K $ -10.49 %
2025/09/30 SYRE Spyre Therapeutics Inc 0.24% 6.178 M $ 368598 2024/12/31 659.790 K $ 11.96 %
2025/09/30 RNAC Cartesian Therapeutics Inc 0.23% 5.757 M $ 563272 2024/09/30 -95.756 K $ -1.64 %
2025/09/30 PDD PDD Holdings Inc 0.22% 5.736 M $ 43401 2024/09/30 1.455 M $ 26.29 %
2025/09/30 ELDN Eledon Pharmaceuticals Inc 0.21% 5.368 M $ 2072767 2025/03/31 -82.820 K $ -4.43 %
2025/09/30 ADBE Adobe Inc 0.21% 5.309 M $ 15051 2024/09/30 -513.690 K $ -8.82 %
2025/09/30 GOOGL Alphabet Inc 0.20% 5.154 M $ 21203 2024/09/30 3.391 M $ 37.95 %
2025/09/30 FROG Jfrog Ltd 0.20% 5.070 M $ 107116 2024/09/30 369.550 K $ 7.86 %
2025/09/30 SGMT Sagimet Biosciences Inc 0.19% 4.972 M $ 724771 2024/09/30 -550.825 K $ -9.97 %
2025/09/30 DT Dynatrace Inc 0.19% 4.856 M $ 100229 2024/09/30 -508.548 K $ -12.24 %
2025/09/30 DDOG Datadog Inc 0.18% 4.689 M $ 32925 2024/09/30 310.089 K $ 6.01 %
2025/09/30 IMAB I-Mab 0.17% 4.407 M $ 1165957 2025/09/30 0.000 $ 0.00 %
2025/09/30 AGEN Agenus Inc 0.16% 4.097 M $ 1064250 2024/09/30 -766.260 K $ -15.75 %
2025/09/30 LXEO Lexeo Therapeutics Inc 0.16% 4.007 M $ 603435 2024/09/30 1.581 M $ 65.17 %
2025/09/30 BDTX Black Diamond Therapeutics Inc 0.16% 3.966 M $ 1046517 2024/09/30 1.371 M $ 52.82 %
2025/09/30 AADI Whitehawk Therapeutics Inc 0.15% 3.956 M $ 2082000 2025/03/31 0.000 $ 0.00 %
2025/09/30 VTVT vTv Therapeutics Inc 0.15% 3.806 M $ 163000 2025/09/30 0.000 $ 0.00 %
2025/09/30 TIL Instil Bio Inc 0.14% 3.642 M $ 203933 2024/09/30 -605.681 K $ -14.26 %
2025/09/30 FHTX Foghorn Therapeutics Inc 0.14% 3.524 M $ 720720 2024/09/30 136.936 K $ 4.04 %
2025/09/30 PRQR ProQR Therapeutics NV 0.13% 3.306 M $ 1552183 2024/12/31 139.696 K $ 4.41 %
2025/09/30 EDU New Oriental Education & Technology Group Inc 0.13% 3.290 M $ 62000 2024/09/30 -63.360 K $ -1.63 %
2025/09/30 CRWV CoreWeave Inc 0.13% 3.284 M $ 24000 2025/09/30 0.000 $ 0.00 %
2025/09/30 PEPG PepGen Inc 0.13% 3.234 M $ 700000 2025/09/30 0.000 $ 0.00 %
2025/09/30 GTLB GitLab Inc 0.11% 2.885 M $ 64000 2025/06/30 -1.050 K $ -0.07 %
2025/09/30 BEKE Ke Holdings Inc 0.11% 2.755 M $ 145000 2024/09/30 132.300 K $ 7.10 %
2025/09/30 PANW Palo Alto Networks Inc 0.11% 2.739 M $ 13450 2024/09/30 -11.729 K $ -0.50 %
2025/09/30 TENX Tenax Therapeutics Inc 0.10% 2.682 M $ 352441 2025/09/30 0.000 $ 0.00 %
2025/09/30 WK Workiva Inc 0.10% 2.582 M $ 30000 2024/12/31 493.639 K $ 25.76 %
2025/09/30 QCOM Qualcomm Inc 0.09% 2.329 M $ 14000 2024/09/30 99.400 K $ 4.46 %
2025/09/30 BIOA BIOAGE Labs Inc 0.09% 2.249 M $ 382406 2024/09/30 669.210 K $ 42.37 %
2025/09/30 KDP Keurig Dr Pepper Inc 0.08% 1.966 M $ 77050 2025/09/30 0.000 $ 0.00 %
2025/09/30 HUBS HubSpot Inc 0.07% 1.871 M $ 4000 2025/06/30 -266.489 K $ -15.96 %
2025/09/30 CMG Chipotle Mexican Grill Inc 0.07% 1.862 M $ 47500 2025/09/30 0.000 $ 0.00 %
2025/09/30 KLRS Kalaris Therapeutics Inc 0.07% 1.840 M $ 318264 2025/03/31 878.842 K $ 116.48 %
2025/09/30 GBIO Generation Bio Co 0.07% 1.817 M $ 296892 2025/09/30 0.000 $ 0.00 %
2025/09/30 CLBT Cellebrite DI Ltd 0.07% 1.668 M $ 90000 2025/06/30 151.800 K $ 15.81 %
2025/09/30 PRMB Primo Brands Corp 0.06% 1.658 M $ 75000 2025/06/30 -282.000 K $ -25.39 %
2025/09/30 SPOT Spotify Technology SA 0.06% 1.517 M $ 2173 2025/09/30 0.000 $ 0.00 %
2025/09/30 NIQ Global Intelligence PLC 0.06% 1.492 M $ 95000 2025/09/30 0.000 $ 0.00 %
2025/09/30 MNDY monday.com Ltd 0.05% 1.356 M $ 7000 2025/09/30 0.000 $ 0.00 %
2025/09/30 SAIL SailPoint Inc 0.04% 1.104 M $ 50000 2025/03/31 -39.000 K $ -3.41 %
2025/09/30 ESTC Elastic NV 0.04% 1.056 M $ 12500 2025/09/30 0.000 $ 0.00 %
2025/09/30 IREN IREN Ltd 0.04% 938.100 K $ 20000 2025/09/30 0.000 $ 0.00 %