Siren, L.L.C. Diversified Active

Location: New York, NY

CIK: 0002005245 · Show all filings

Period: Q1 2026 (← Previous)

Filing Date: May 14, 2026

Total Value ($000): $3,607,379 (100.0% shares, 0.0% debt)

Holdings (100)

New Positions (19)

MANE Veradermics Inc 2.6%
Value ($000) $95,064 Shares 1,505,374 Est. Cost $63.15 Unrealized
CYTK Cytokinetics Inc 1.1%
Value ($000) $40,466 Shares 613,952 Est. Cost $64.44 Unrealized 0.0%
ELVN Enliven Therapeutics Inc 0.8%
Value ($000) $29,252 Shares 746,226 Est. Cost $25.60 Unrealized 0.0%
GLTO Damora Therapeutics Inc 0.6%
Value ($000) $23,310 Shares 900,000 Est. Cost $25.80 Unrealized 0.0%
ANNX Annexon Inc 0.6%
Value ($000) $21,931 Shares 3,958,646 Est. Cost $5.75 Unrealized 0.0%
DFTX Definium Therapeutics Inc 0.5%
Value ($000) $17,378 Shares 919,493 Est. Cost $16.29 Unrealized 0.0%
AMLX Amylyx Pharmaceuticals Inc 0.5%
Value ($000) $17,097 Shares 1,230,000 Est. Cost $13.99 Unrealized 0.0%
QURE Uniqure NV 0.5%
Value ($000) $16,350 Shares 1,000,000 Est. Cost $23.55 Unrealized 0.0%
CTMX CytomX Therapeutics Inc 0.5%
Value ($000) $16,251 Shares 3,457,711 Est. Cost $5.23 Unrealized 0.0%
RZLT Rezolute Inc 0.3%
Value ($000) $10,151 Shares 3,328,287 Est. Cost $3.06 Unrealized 0.0%
GENB Generate Biomedicines Inc 0.3%
Value ($000) $9,201 Shares 736,104 Est. Cost $12.50 Unrealized
ABSI Absci Corp 0.1%
Value ($000) $5,400 Shares 1,800,000 Est. Cost $3.00 Unrealized 0.0%
MSLE Satellos Bioscience Inc 0.1%
Value ($000) $5,022 Shares 892,074 Est. Cost $5.63 Unrealized
AGMB Agomab Therapeutics NV 0.1%
Value ($000) $4,314 Shares 411,250 Est. Cost $10.49 Unrealized
FPS Forgent Power Solutions, Inc 0.1%
Value ($000) $2,927 Shares 100,000 Est. Cost $29.27 Unrealized
MU Micron Technology Inc 0.1%
Value ($000) $2,027 Shares 6,000 Est. Cost $387.04 Unrealized 0.0%
AS Amer Sports Inc 0.0%
Value ($000) $1,646 Shares 50,000 Est. Cost $38.20 Unrealized 0.0%
AEVA Aeva Technologies Inc 0.0%
Value ($000) $1,448 Shares 110,000 Est. Cost $15.02 Unrealized 0.0%
NU Nu Holdings Ltd. 0.0%
Value ($000) $359 Shares 25,000 Est. Cost $17.34 Unrealized 0.0%

Increased Positions (35)

ERAS Erasca Inc 5.0%
Value ($000) $181,932 (+458.5%) Shares 11,244,246 (+28.4%) Est. Cost $4.41 Unrealized +127.3%
XENE Xenon Pharmaceuticals Inc 2.1%
Value ($000) $76,674 (+110.5%) Shares 1,318,564 (+62.2%) Est. Cost $40.49 Unrealized +3.7%
ORIC Oric Pharmaceuticals Inc 1.1%
Value ($000) $37,987 (+360.9%) Shares 2,998,192 (+197.6%) Est. Cost $10.47 Unrealized +2.8%
BCAX Bicara Therapeutics Inc 3.2%
Value ($000) $115,421 (+31.5%) Shares 5,802,970 (+11.2%) Est. Cost $19.85 Unrealized -17.9%
LXRX Lexicon Pharmaceuticals Inc 1.9%
Value ($000) $69,113 (+54.4%) Shares 44,303,518 (+13.8%) Est. Cost $1.73 Unrealized -22.0%
PVLA Palvella Therapeutics Inc 0.9%
Value ($000) $32,096 (+308.8%) Shares 257,485 (+243.3%) Est. Cost $89.61 Unrealized +2.0%
ZURA Zura Bio Ltd 0.6%
Value ($000) $22,222 (+226.2%) Shares 3,734,866 (+187.3%) Est. Cost $5.21 Unrealized +12.9%
GOOGL Alphabet Inc 0.5%
Value ($000) $18,894 (+191.6%) Shares 65,703 (+217.4%) Est. Cost $277.75 Unrealized +16.4%
OLMA Olema Pharmaceuticals Inc 2.0%
Value ($000) $70,926 (-14.0%) Shares 4,756,949 (+44.1%) Est. Cost $20.14 Unrealized +26.4%
GPCR Structure Therapeutics Inc 1.8%
Value ($000) $64,043 (-14.6%) Shares 1,328,698 (+23.2%) Est. Cost $33.42 Unrealized
RYTM Rhythm Pharmaceuticals Inc 1.7%
Value ($000) $63,098 (+17.9%) Shares 725,511 (+45.1%) Est. Cost $75.89 Unrealized +35.5%
NVDA NVIDIA Corp 0.4%
Value ($000) $15,536 (+122.2%) Shares 89,085 (+137.7%) Est. Cost $158.15 Unrealized +18.0%
MSFT Microsoft Corp 0.4%
Value ($000) $15,318 (+111.2%) Shares 41,380 (+175.9%) Est. Cost $431.05 Unrealized +0.8%
COGT Cogent Biosciences Inc 1.8%
Value ($000) $65,790 (+13.7%) Shares 1,709,279 (+4.9%) Est. Cost $10.06 Unrealized +271.3%
TSLA Tesla Inc 0.2%
Value ($000) $7,993 (+1084.8%) Shares 21,500 (+1333.3%) Est. Cost $419.51 Unrealized +1.5%
TSM Taiwan Semiconductor Manufacturing Co Ltd 0.4%
Value ($000) $14,261 (+69.4%) Shares 42,200 (+52.3%) Est. Cost $230.16 Unrealized
ENGN enGene Holdings Inc 1.0%
Value ($000) $35,774 (+18.7%) Shares 5,253,159 (+57.5%) Est. Cost $8.61 Unrealized +12.2%
NBIS Nebius Group NV 0.3%
Value ($000) $11,789 (+84.8%) Shares 113,614 (+49.1%) Est. Cost $59.72 Unrealized +61.4%
NMRA Neumora Therapeutics Inc 0.5%
Value ($000) $16,571 (+47.2%) Shares 8,497,822 (+35.1%) Est. Cost $7.19 Unrealized -65.7%
FULC Fulcrum Therapeutics Inc 0.5%
Value ($000) $18,025 (-18.3%) Shares 2,350,000 (+20.5%) Est. Cost $10.21 Unrealized +1.6%
NOW ServiceNow Inc 0.3%
Value ($000) $9,105 (+66.8%) Shares 87,090 (+144.4%) Est. Cost $142.36 Unrealized -14.9%
AVGO Broadcom Inc 0.1%
Value ($000) $4,643 (+91.6%) Shares 15,000 (+114.3%) Est. Cost $344.82 Unrealized -3.1%
ARWR Arrowhead Pharmaceuticals Inc 2.8%
Value ($000) $101,290 (+1.7%) Shares 1,615,476 (+7.7%) Est. Cost $26.81 Unrealized +145.2%
CLBT Cellebrite DI Ltd 0.1%
Value ($000) $4,293 (+58.7%) Shares 311,544 (+107.7%) Est. Cost $16.47 Unrealized -5.6%
GTLB GitLab Inc 0.1%
Value ($000) $2,164 (-41.8%) Shares 100,000 (+1.0%) Est. Cost $44.75 Unrealized -26.6%
DDOG Datadog Inc 0.2%
Value ($000) $6,410 (+29.4%) Shares 54,300 (+49.1%) Est. Cost $123.86 Unrealized +0.1%
PDD PDD Holdings Inc 0.2%
Value ($000) $8,522 (+18.5%) Shares 83,401 (+31.5%) Est. Cost $117.20 Unrealized
WK Workiva Inc 0.2%
Value ($000) $5,516 (-19.2%) Shares 92,500 (+16.9%) Est. Cost $84.89 Unrealized -11.9%
CRWD CrowdStrike Holdings Inc 0.2%
Value ($000) $9,007 (+16.4%) Shares 23,070 (+39.8%) Est. Cost $328.72 Unrealized +31.1%
CRNX Crinetics Pharmaceuticals Inc 1.9%
Value ($000) $69,140 (-1.5%) Shares 1,903,636 (+26.3%) Est. Cost $51.17 Unrealized -3.8%
MNPR Monopar Therapeutics Inc 0.4%
Value ($000) $14,800 (+6.8%) Shares 270,118 (+27.2%) Est. Cost $77.66 Unrealized -19.1%
MNDY monday.com Ltd 0.0%
Value ($000) $1,728 (-31.1%) Shares 25,000 (+47.1%) Est. Cost $166.84 Unrealized -34.4%
DT Dynatrace Inc 0.2%
Value ($000) $5,547 (+11.1%) Shares 150,000 (+30.2%) Est. Cost $46.08 Unrealized -16.6%
FROG Jfrog Ltd 0.2%
Value ($000) $6,045 (+3.4%) Shares 128,816 (+37.6%) Est. Cost $37.17 Unrealized +42.5%
FIG Figma Inc 0.0%
Value ($000) $1,057 (+13.1%) Shares 50,000 (+100.0%) Est. Cost $43.84 Unrealized -35.2%

Exited Positions (32)

APLS Apellis Pharmaceuticals Inc 1.8%
Value ($000) $64,769 Shares 2,578,396 Est. Cost $35.43 Unrealized -36.0%
ASND Ascendis Pharma A/S 1.4%
Value ($000) $50,295 Shares 235,862 Est. Cost $149.31 Unrealized
RAPT RAPT Therapeutics Inc 1.3%
Value ($000) $46,571 Shares 1,375,000 Est. Cost $23.47 Unrealized +115.2%
ZYME Zymeworks Inc 1.2%
Value ($000) $44,238 Shares 1,680,121 Est. Cost $21.81 Unrealized +7.2%
MLYS Mineralys Therapeutics Inc 0.7%
Value ($000) $25,403 Shares 699,999 Est. Cost $40.10 Unrealized -21.8%
IHS IHS Holding Limited 0.5%
Value ($000) $17,587 Shares 2,357,520 Est. Cost $3.08 Unrealized +157.7%
UPB Upstream Bio Inc 0.4%
Value ($000) $15,976 Shares 588,450 Est. Cost $22.33 Unrealized +6.1%
Mind Medicine (MindMed) Inc 0.3%
Value ($000) $10,712 Shares 800,000 Est. Cost $13.39 Unrealized
BNTC Benitec Biopharma Inc 0.3%
Value ($000) $10,439 Shares 775,000 Est. Cost $13.83 Unrealized -14.8%
LXEO Lexeo Therapeutics Inc 0.2%
Value ($000) $7,156 Shares 720,622 Est. Cost $11.47 Unrealized -34.3%
CRM Salesforce Inc 0.2%
Value ($000) $6,914 Shares 26,100 Est. Cost $283.24 Unrealized -23.8%
CMPS Compass Pathways PLC 0.2%
Value ($000) $6,900 Shares 1,000,000 Est. Cost $6.90 Unrealized
BLLN BillionToOne Inc 0.2%
Value ($000) $6,861 Shares 83,833 Est. Cost $101.40 Unrealized -14.3%
SVRA Savara Inc 0.2%
Value ($000) $6,030 Shares 1,000,000 Est. Cost $4.90 Unrealized +16.2%
XFOR X4 Pharmaceuticals Inc 0.2%
Value ($000) $6,000 Shares 1,500,000 Est. Cost $3.63 Unrealized +0.1%
ALMS Alumis Inc 0.1%
Value ($000) $4,880 Shares 500,000 Est. Cost $6.98 Unrealized +248.5%
META Meta Platforms Inc 0.1%
Value ($000) $4,732 Shares 7,169 Est. Cost $667.32 Unrealized -1.8%
PEPG PepGen Inc 0.1%
Value ($000) $4,557 Shares 700,000 Est. Cost $1.61 Unrealized +261.7%
SGMT Sagimet Biosciences Inc 0.1%
Value ($000) $4,291 Shares 724,771 Est. Cost $3.08 Unrealized +88.4%
ADBE Adobe Inc 0.1%
Value ($000) $4,218 Shares 12,051 Est. Cost $461.82 Unrealized -37.2%
EDU New Oriental Education & Technology Group Inc 0.1%
Value ($000) $3,412 Shares 62,000 Est. Cost $67.56 Unrealized
ZS Zscaler Inc 0.1%
Value ($000) $2,699 Shares 12,000 Est. Cost $282.25 Unrealized -31.5%
BDTX Black Diamond Therapeutics Inc 0.1%
Value ($000) $2,543 Shares 1,046,517 Est. Cost $5.44 Unrealized -54.2%
QCOM Qualcomm Inc 0.1%
Value ($000) $2,395 Shares 14,000 Est. Cost $171.16 Unrealized -10.1%
ARM Arm Holdings PLC 0.1%
Value ($000) $2,350 Shares 21,500 Est. Cost $109.31 Unrealized
TIL Instil Bio Inc 0.1%
Value ($000) $2,243 Shares 203,933 Est. Cost $23.39 Unrealized -66.4%
PANW Palo Alto Networks Inc 0.1%
Value ($000) $2,109 Shares 11,450 Est. Cost $180.75 Unrealized -4.8%
CRWV CoreWeave Inc 0.1%
Value ($000) $1,969 Shares 27,500 Est. Cost $116.15 Unrealized -21.2%
VRNS Varonis Systems Inc 0.0%
Value ($000) $1,230 Shares 37,500 Est. Cost $41.98 Unrealized -29.9%
Generation Bio Inc 0.0%
Value ($000) $1,144 Shares 201,419 Est. Cost $6.12 Unrealized
CRBU Caribou Biosciences Inc 0.0%
Value ($000) $168 Shares 105,347 Est. Cost $2.05 Unrealized -20.9%
CYCN Cyclerion Therapeutics Inc 0.0%
Value ($000) $147 Shares 115,603 Est. Cost $2.94 Unrealized -52.5%

Decreased Positions (18)

CNTA Centessa Pharmaceuticals PLC 1.2%
Value ($000) $41,844 (-58.5%) Shares 1,053,464 (-73.8%) Est. Cost $17.45 Unrealized
TNGX Tango Therapeutics Inc 3.3%
Value ($000) $118,347 (+63.6%) Shares 5,657,105 (-30.7%) Est. Cost $7.74 Unrealized +53.9%
DYN Dyne Therapeutics, Inc 1.1%
Value ($000) $40,414 (-41.0%) Shares 2,229,125 (-36.4%) Est. Cost $19.51 Unrealized -12.3%
EWTX Edgewise Therapeutics Inc 3.9%
Value ($000) $139,553 (+24.1%) Shares 4,430,263 (-2.2%) Est. Cost $19.44 Unrealized +45.0%
TSHA Taysha Gene Therapies Inc 1.1%
Value ($000) $39,470 (-29.2%) Shares 8,829,913 (-12.8%) Est. Cost $2.17 Unrealized +119.7%
ONC BeOne Medicines AG 3.8%
Value ($000) $138,091 (-9.1%) Shares 465,000 (-7.0%) Est. Cost $220.70 Unrealized
KYMR Kymera Therapeutics Inc 7.4%
Value ($000) $265,431 (+3.8%) Shares 3,186,830 (-3.0%) Est. Cost $43.02 Unrealized +80.4%
TRVI Trevi Therapeutics Inc 0.6%
Value ($000) $21,317 (-25.5%) Shares 1,786,867 (-21.9%) Est. Cost $4.03 Unrealized +171.8%
BCYC Bicycle Therapeutics PLC 0.2%
Value ($000) $7,242 (-49.2%) Shares 1,560,882 (-22.5%) Est. Cost $13.30 Unrealized
STOK Stoke Therapeutics Inc 1.8%
Value ($000) $64,968 (-8.9%) Shares 1,995,347 (-11.2%) Est. Cost $11.96 Unrealized +166.2%
SEER Seer Inc 0.1%
Value ($000) $4,131 (-43.6%) Shares 2,458,673 (-38.5%) Est. Cost $1.75 Unrealized +8.9%
AMZN Amazon.com Inc 0.3%
Value ($000) $9,714 (-18.3%) Shares 46,641 (-9.4%) Est. Cost $196.43 Unrealized +15.5%
MDLN Medline Inc 0.0%
Value ($000) $1,113 (-64.7%) Shares 25,000 (-66.7%) Est. Cost $42.23 Unrealized +6.2%
RELY Remitly Global Inc 0.7%
Value ($000) $24,183 (+8.3%) Shares 1,543,271 (-4.6%) Est. Cost $18.06 Unrealized -22.8%
RVMD Revolution Medicines Inc 3.0%
Value ($000) $108,043 (+1.6%) Shares 1,110,980 (-16.8%) Est. Cost $46.57 Unrealized +121.2%
RAPP Rapport Therapeutics Inc 0.6%
Value ($000) $20,072 (-6.6%) Shares 641,469 (-9.5%) Est. Cost $19.15 Unrealized +45.3%
BEKE KE Holdings Inc 0.0%
Value ($000) $1,497 (-34.5%) Shares 100,000 (-31.0%) Est. Cost $19.71 Unrealized
PRMB Primo Brands Corp 0.0%
Value ($000) $942 (-23.2%) Shares 50,000 (-33.3%) Est. Cost $28.92 Unrealized -35.4%

Unchanged Positions (28)

SRRK Scholar Rock Holding Corp 14.8%
Value ($000) $532,158 Shares 10,825,013 Est. Cost $12.96 Unrealized +250.9%
WVE WAVE Life Sciences Ltd 0.5%
Value ($000) $17,763 Shares 2,450,000 Est. Cost $5.98 Unrealized +130.1%
IRON Disc Medicine Inc 1.8%
Value ($000) $63,198 Shares 988,401 Est. Cost $57.60 Unrealized +28.6%
TBLA Taboola.com Ltd 0.9%
Value ($000) $30,905 Shares 9,969,495 Est. Cost $3.30 Unrealized +16.4%
SYRE Spyre Therapeutics Inc 1.1%
Value ($000) $41,290 Shares 818,598 Est. Cost $27.57 Unrealized +25.3%
GOSS Gossamer Bio Inc 0.0%
Value ($000) $1,711 Shares 5,208,968 Est. Cost $0.96 Unrealized +134.6%
SLDB Solid Biosciences Inc 1.5%
Value ($000) $55,371 Shares 7,690,405 Est. Cost $5.85 Unrealized +3.4%
SEPN Septerna Inc 1.3%
Value ($000) $48,060 Shares 2,000,000 Est. Cost $23.65 Unrealized +12.1%
RCUS Arcus Biosciences Inc 1.8%
Value ($000) $64,953 Shares 3,007,077 Est. Cost $13.59 Unrealized +56.5%
IVVD Invivyd Inc 0.1%
Value ($000) $5,200 Shares 4,000,000 Est. Cost $2.08 Unrealized -4.9%
CGEM Cullinan Therapeutics Inc 0.5%
Value ($000) $16,958 Shares 1,193,410 Est. Cost $17.74 Unrealized -32.5%
NBP NovaBridge Biosciences 0.2%
Value ($000) $7,380 Shares 3,000,000 Est. Cost $3.90 Unrealized
DNLI Denali Therapeutics Inc 0.7%
Value ($000) $26,813 Shares 1,396,513 Est. Cost $21.53 Unrealized -8.9%
DBVT Dbv Technologies SA 1.1%
Value ($000) $38,800 Shares 1,857,362 Est. Cost $19.17 Unrealized
IONQ IONQ Inc 0.1%
Value ($000) $4,901 Shares 170,000 Est. Cost $7.62 Unrealized +443.3%
SLN Silence Therapeutics PLC 0.4%
Value ($000) $15,343 Shares 2,911,438 Est. Cost $17.66 Unrealized
IKT Inhibikase Therapeutics Inc 0.3%
Value ($000) $9,828 Shares 5,850,000 Est. Cost $1.59 Unrealized +9.0%
WHWK Whitehawk Therapeutics Inc 0.2%
Value ($000) $7,183 Shares 2,082,000 Est. Cost $2.61 Unrealized +8.0%
TENX Tenax Therapeutics Inc 0.2%
Value ($000) $6,830 Shares 427,141 Est. Cost $6.56 Unrealized +105.7%
MPLT MapLight Therapeutics Inc 0.3%
Value ($000) $9,149 Shares 450,000 Est. Cost $16.75 Unrealized +5.2%
RANI Rani Therapeutics Holdings Inc 0.0%
Value ($000) $1,470 Shares 2,000,000 Est. Cost $1.51 Unrealized -12.3%
KLRS Kalaris Therapeutics Inc 0.1%
Value ($000) $2,515 Shares 435,798 Est. Cost $8.34 Unrealized +12.3%
KRRO Korro Bio Inc 0.1%
Value ($000) $3,936 Shares 347,718 Est. Cost $42.09 Unrealized -74.4%
FHTX Foghorn Therapeutics Inc 0.1%
Value ($000) $3,445 Shares 720,720 Est. Cost $7.24 Unrealized -21.4%
SION Sionna Therapeutics Inc 0.3%
Value ($000) $12,027 Shares 300,000 Est. Cost $16.34 Unrealized +140.2%
AGEN Agenus Inc 0.1%
Value ($000) $3,555 Shares 1,064,250 Est. Cost $3.19 Unrealized +2.9%
IREN IREN Ltd 0.0%
Value ($000) $1,477 Shares 43,100 Est. Cost $38.92 Unrealized +24.0%
VTVT vTv Therapeutics Inc 0.2%
Value ($000) $6,465 Shares 163,000 Est. Cost $17.30 Unrealized +108.8%