Fund Holdings — Siren, L.L.C.

Total Portfolio Value:
$3.61B
Total Bought:
$752.91M
Total Sold:
$604.95M
Net Transaction:
+$147.96M
Securities
▲▼
SharesValue
Q4 2025
▲▼
Q1 2026
▲▼
Change
▲▼
Q4 2025
▲▼
Q1 2026
▲▼
Weight (%)
▲▼
Change
▲▼
Scholar Rock Holding Corporation(SRRK)10,825,01310,825,0130$476.84M$532.16M14.75%+$55.32M
Kymera Therapeutics, Inc.(KYMR)3,286,8303,186,830-100,000$255.75M$265.43M7.36%+$9.68M
Erasca, Inc.(ERAS)8,757,24911,244,246+2,486,997$32.58M$181.93M5.04%+$149.35M
Edgewise Therapeutics, Inc.(EWTX)4,529,9904,430,263-99,727$112.41M$139.55M3.87%+$27.14M
BeOne Medicines AGADS(ONC)500,000465,000-35,000$151.91M$138.09M3.83%-$13.81M
Tango Therapeutics, Inc.(TNGX)8,165,3745,657,105-2,508,269$72.35M$118.35M3.28%+$46.00M
Bicara Therapeutics Inc5,216,9695,802,970+586,001$87.80M$115.42M3.20%+$27.62M
Revolution Medicines, Inc.(RVMD)1,335,0751,110,980-224,095$106.34M$108.04M3.00%+$1.70M
Arrowhead Pharmaceuticals, Inc.(ARWR)1,500,4761,615,476+115,000$99.62M$101.29M2.81%+$1.67M
Veradermics, Incorporated(MANE)01,505,374+1,505,374$0$95.06M2.64%+$95.06M
Xenon Pharmaceuticals Inc.(XENE)812,7611,318,564+505,803$36.43M$76.67M2.13%+$40.25M
Olema Pharmaceuticals, Inc.(OLMA)3,300,7004,756,949+1,456,249$82.52M$70.93M1.97%-$11.59M
Crinetics Pharmaceuticals Inc1,507,6361,903,636+396,000$70.18M$69.14M1.92%-$1.04M
Lexicon Pharmaceuticals, Inc.(LXRX)38,918,90344,303,518+5,384,615$44.76M$69.11M1.92%+$24.36M
Cogent Biosciences, Inc.(COGT)1,629,2791,709,279+80,000$57.87M$65.79M1.82%+$7.92M
Stoke Therapeutics, Inc.(STOK)2,247,3471,995,347-252,000$71.33M$64.97M1.80%-$6.36M
Arcus Biosciences, Inc.(RCUS)3,007,0773,007,0770$71.66M$64.95M1.80%-$6.71M
Structure Therapeutics IncADS1,078,6981,328,698+250,000$75.02M$64.04M1.78%-$10.98M
Disc Medicine, Inc.(IRON)988,401988,4010$78.49M$63.20M1.75%-$15.29M
Rhythm Pharmaceuticals, Inc.(RYTM)499,975725,511+225,536$53.52M$63.10M1.75%+$9.58M
Solid Biosciences Inc7,690,4057,690,4050$43.37M$55.37M1.53%+$12.00M
Septerna, Inc.(SEPN)2,000,0002,000,0000$55.76M$48.06M1.33%-$7.70M
Centessa Pharmaceuticals PLCADS4,027,5171,053,464-2,974,053$100.73M$41.84M1.16%-$58.88M
Spyre Therapeutics, Inc.(SYRE)818,598818,5980$26.82M$41.29M1.14%+$14.47M
Cytokinetics, Incorporated(CYTK)0613,952+613,952$0$40.47M1.12%+$40.47M
Dyne Therapeutics, Inc.(DYN)3,502,9412,229,125-1,273,816$68.52M$40.41M1.12%-$28.10M
Taysha Gene Therapies, Inc.(TSHA)10,129,9138,829,913-1,300,000$55.71M$39.47M1.09%-$16.24M
DBV Technologies S.A.ADS(DBVT)1,857,3621,857,3620$35.61M$38.80M1.08%+$3.19M
ORIC Pharmaceuticals, Inc.(ORIC)1,007,5752,998,192+1,990,617$8.24M$37.99M1.05%+$29.75M
enGene Holdings Inc
COM
3,336,2645,253,159+1,916,895$30.13M$35.77M0.99%+$5.65M
Palvella Therapeutics, Inc.(PVLA)75,000257,485+182,485$7.85M$32.10M0.89%+$24.25M
Taboola.com Ltd.(TBLA)9,969,4959,969,4950$45.96M$30.91M0.86%-$15.05M
Enliven Therapeutics Inc0746,226+746,226$0$29.25M0.81%+$29.25M
Denali Therapeutics Inc.(DNLI)1,396,5131,396,5130$23.06M$26.81M0.74%+$3.76M
Remitly Global, Inc.(RELY)1,618,2711,543,271-75,000$22.33M$24.18M0.67%+$1.85M
Damora Therapeutics, Inc.(DMRA)0900,000+900,000$0$23.31M0.65%+$23.31M
Zura Bio LimitedCL A(ZURA)1,300,0003,734,866+2,434,866$6.81M$22.22M0.62%+$15.41M
Annexon, Inc.(ANNX)03,958,646+3,958,646$0$21.93M0.61%+$21.93M
Trevi Therapeutics, Inc.(TRVI)2,286,8671,786,867-500,000$28.63M$21.32M0.59%-$7.31M
Rapport Therapeutics, Inc.(RAPP)708,469641,469-67,000$21.49M$20.07M0.56%-$1.42M
Alphabet Inc.CL A(GOOG)20,70365,703+45,000$6.48M$18.89M0.52%+$12.41M
Fulcrum Therapeutics, Inc.(FULC)1,950,0002,350,000+400,000$22.05M$18.02M0.50%-$4.03M
Wave Life Sciences, Inc.SHS(WVE)2,450,0002,450,0000$41.65M$17.76M0.49%-$23.89M
Definium Therapeutics, Inc.(DFTX)0919,493+919,493$0$17.38M0.48%+$17.38M
Amylyx Pharmaceuticals, Inc.(AMLX)01,230,000+1,230,000$0$17.10M0.47%+$17.10M
Cullinan Therapeutics, Inc.(CGEM)1,193,4101,193,4100$12.35M$16.96M0.47%+$4.61M
Neumora Therapeutics, Inc.(NMRA)6,288,7838,497,822+2,209,039$11.26M$16.57M0.46%+$5.31M
uniQure N.V.SHS(QURE)01,000,000+1,000,000$0$16.35M0.45%+$16.35M
CytomX Therapeutics, Inc.(CTMX)03,457,711+3,457,711$0$16.25M0.45%+$16.25M
NVIDIA Corporation(NVDA)37,48589,085+51,600$6.99M$15.54M0.43%+$8.55M
Silence Therapeutics plcADS(SLN)2,911,4382,911,4380$17.70M$15.34M0.43%-$2.36M
Microsoft Corporation(MSFT)15,00041,380+26,380$7.25M$15.32M0.42%+$8.06M
Monopar Therapeutics Inc.(MNPR)212,298270,118+57,820$13.86M$14.80M0.41%+$936.7K
Taiwan Semiconductor Manufacturing Company LimitedADS(TSM)27,70042,200+14,500$8.42M$14.26M0.40%+$5.84M
Sionna Therapeutics, Inc.(SION)300,000300,0000$12.34M$12.03M0.33%-$315.0K
Nebius Group N.V.CL A(NBIS)76,218113,614+37,396$6.38M$11.79M0.33%+$5.41M
Rezolute, Inc.(RZLT)03,328,287+3,328,287$0$10.15M0.28%+$10.15M
Inhibikase Therapeutics, Inc.(IKT)5,850,0005,850,0000$11.99M$9.83M0.27%-$2.16M
Amazon.com, Inc.(AMZN)51,50046,641-4,859$11.89M$9.71M0.27%-$2.17M
Generate Biomedicines, Inc.(GENB)0736,104+736,104$0$9.20M0.26%+$9.20M
MapLight Therapeutics, Inc.(MPLT)450,000450,0000$7.90M$9.15M0.25%+$1.24M
ServiceNow, Inc.(NOW)35,63087,090+51,460$5.46M$9.11M0.25%+$3.65M
CrowdStrike Holdings, Inc.CL A(CRWD)16,50023,070+6,570$7.73M$9.01M0.25%+$1.27M
PDD Holdings Inc.ADS(PDD)63,40183,401+20,000$7.19M$8.52M0.24%+$1.33M
Tesla, Inc.(TSLA)1,50021,500+20,000$674.6K$7.99M0.22%+$7.32M
NovaBridge BiosciencesADS(NBP)3,000,0003,000,0000$11.94M$7.38M0.20%-$4.56M
Bicycle Therapeutics PLCADS2,012,7521,560,882-451,870$14.25M$7.24M0.20%-$7.01M
Whitehawk Therapeutics, Inc.(WHWK)2,082,0002,082,0000$5.04M$7.18M0.20%+$2.14M
Tenax Therapeutics, Inc.(TENX)427,141427,1410$5.21M$6.83M0.19%+$1.62M
vTv Therapeutics Inc.CL A(VTVT)163,000163,0000$6.52M$6.46M0.18%-$53.8K
Datadog, Inc.CL A(DDOG)36,42554,300+17,875$4.95M$6.41M0.18%+$1.46M
JFrog Ltd.(FROG)93,616128,816+35,200$5.85M$6.05M0.17%+$198.1K
Dynatrace, Inc.(DT)115,229150,000+34,771$4.99M$5.55M0.15%+$553.0K
Workiva Inc.CL A(WK)79,12392,500+13,377$6.82M$5.52M0.15%-$1.31M
Absci Corp01,800,000+1,800,000$0$5.40M0.15%+$5.40M
Invivyd, Inc.(IVVD)4,000,0004,000,0000$9.88M$5.20M0.14%-$4.68M
Satellos Bioscience Inc.(MSLE)0892,074+892,074$0$5.02M0.14%+$5.02M
IonQ, Inc.(IONQ)170,000170,0000$7.63M$4.90M0.14%-$2.73M
Broadcom Inc.(AVGO)7,00015,000+8,000$2.42M$4.64M0.13%+$2.22M
AgomAb Therapeutics NVADS(AGMB)0411,250+411,250$0$4.31M0.12%+$4.31M
Cellebrite DI Ltd.(CLBT)150,000311,544+161,544$2.71M$4.29M0.12%+$1.59M
Seer, Inc.CL A(SEER)4,000,0002,458,673-1,541,327$7.32M$4.13M0.11%-$3.19M
Korro Bio, Inc.(KRRO)347,718347,7180$2.79M$3.94M0.11%+$1.15M
Agenus Inc.(AGEN)1,064,2501,064,2500$3.34M$3.55M0.10%+$212.8K
Foghorn Therapeutics Inc.(FHTX)720,720720,7200$3.89M$3.45M0.10%-$446.8K
Forgent Power Solutions, Inc.CL A(FPS)0100,000+100,000$0$2.93M0.08%+$2.93M
Kalaris Therapeutics, Inc.(KLRS)435,798435,7980$3.68M$2.51M0.07%-$1.16M
GitLab Inc.CL A(GTLB)99,000100,000+1,000$3.72M$2.16M0.06%-$1.55M
Micron Technology, Inc.(MU)06,000+6,000$0$2.03M0.06%+$2.03M
monday.com LtdSHS
SHS
17,00025,000+8,000$2.51M$1.73M0.05%-$780.8K
Gossamer Bio, Inc.(GOSS)5,208,9685,208,9680$16.15M$1.71M0.05%-$14.44M
Amer Sports, Inc.(AS)050,000+50,000$0$1.65M0.05%+$1.65M
KE Holdings Inc.ADS(BEKE)145,000100,000-45,000$2.29M$1.50M0.04%-$788.2K
IREN Ltd
ORDINARY SHARES
43,10043,1000$1.63M$1.48M0.04%-$150.4K
Rani Therapeutics Holdings, Inc.CL A(RANI)2,000,0002,000,0000$2.70M$1.47M0.04%-$1.23M
Aeva Technologies, Inc.(AEVA)0110,000+110,000$0$1.45M0.04%+$1.45M
Medline Inc.CL A(MDLN)75,00025,000-50,000$3.15M$1.11M0.03%-$2.04M
Figma, Inc.CL A(FIG)25,00050,000+25,000$934.3K$1.06M0.03%+$122.8K
Primo Brands CorporationCL A(PRMB)75,00050,000-25,000$1.23M$941.5K0.03%-$284.8K
Nu Holdings Ltd.CL A(NU)025,000+25,000$0$359.3K0.01%+$359.3K
Page 1 of 2