Fund Holdings — Siren, L.L.C.

Total Portfolio Value
$1.77B
Total Bought
$352.57M
Total Sold
$571.20M
Net Transaction
-$218.64M
Filing Period:
Securities
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SharesValue ($K)
Q4 2024
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Q1 2025
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Change
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Q4 2024
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Q1 2025
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Weight (%)
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Change
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Blueprint Medicines Corp0726,167+726,167064,2733.63%+64,273
Disc Medicine Inc(IRON)01,071,865+1,071,865053,2073.00%+53,207
Soleno Therapeutics Inc351,818727,337+375,51915,81451,9682.93%+36,154
Edgewise Therapeutics Inc(EWTX)734,3431,696,444+962,10119,60737,3222.11%+17,715
Beigene Ltd(ONC)653,721498,689-155,032120,749135,7287.66%+14,979
Rhythm Pharmaceuticals Inc(RYTM)0277,533+277,533014,7010.83%+14,701
Summit Therapeutics Inc(SMMT)0695,000+695,000013,4070.76%+13,407
Solid Biosciences Inc3,749,0417,415,905+3,666,86414,99627,4391.55%+12,443
Merus NV784,4121,043,467+259,05532,98543,9202.48%+10,935
Alphabet Inc(GOOG)7,00050,703+43,7031,3257,8410.44%+6,516
Trevi Therapeutics Inc(TRVI)2,906,0602,863,793-42,26711,97318,0131.02%+6,040
IHS Holding Limited
ORD SHS
2,357,5202,357,52006,88412,3060.69%+5,422
Metsera Inc0150,000+150,00004,0830.23%+4,083
Salesforce Inc(CRM)014,600+14,60003,9180.22%+3,918
Ascendis Pharma A/S(ASND)297,321287,366-9,95540,93244,7892.53%+3,857
Whitehawk Therapeutics Inc(WHWK)02,082,000+2,082,00003,7060.21%+3,706
Adobe Inc(ADBE)8,79819,298+10,5003,9127,4010.42%+3,489
Sionna Therapeutics Inc(SION)0325,000+325,00003,4000.19%+3,400
Amazon.com Inc(AMZN)36,50056,500+20,0008,00810,7500.61%+2,742
Reddit Inc(RDDT)023,500+23,50002,4650.14%+2,465
LPL Financial Holdings Inc(LPLA)07,500+7,50002,4540.14%+2,454
Eledon Pharmaceuticals Inc(ELDN)0690,170+690,17002,3400.13%+2,340
Tesla Inc(TSLA)09,000+9,00002,3320.13%+2,332
Kalaris Therapeutics Inc(KLRS)0282,586+282,58602,2690.13%+2,269
SailPoint Inc(SAIL)095,000+95,00001,7810.10%+1,781
Taiwan Semiconductor Manufacturing Co Ltd(TSM)15,00028,500+13,5002,9624,7310.27%+1,769
Marvell Technology Inc(MRVL)5,00036,808+31,8085522,2660.13%+1,714
StandardAero, Inc.(SARO)056,855+56,85501,5150.09%+1,515
ServiceNow Inc(NOW)5,6059,126+3,5215,9427,2660.41%+1,324
BILL Holdings Inc028,500+28,50001,3080.07%+1,308
Pegasystems Inc(PEGA)016,500+16,50001,1470.06%+1,147
PDD Holdings Inc(PDD)52,90152,90105,1316,2610.35%+1,130
Gossamer Bio Inc(GOSS)5,208,9685,208,96804,7125,7300.32%+1,018
Ke Holdings Inc(BEKE)60,000105,000+45,0001,1052,1090.12%+1,004
Microsoft Corp(MSFT)23,00028,500+5,5009,69510,6990.60%+1,004
MongoDB Inc(MDB)05,500+5,50009650.05%+965
Nike Inc(NKE)015,000+15,00009520.05%+952
Informatica Inc050,000+50,00008730.05%+873
Palo Alto Networks Inc(PANW)6,00011,500+5,5001,0921,9620.11%+871
Agenus Inc(AGEN)0500,000+500,00007530.04%+753
SEMrush Holdings Inc
CL A COM
35,000125,000+90,0004161,1660.07%+750
Jfrog Ltd(FROG)120,116131,616+11,5003,5334,2120.24%+679
Prothena Corporation PLC
SHS
1,099,8401,283,555+183,71515,23315,8840.90%+651
CrowdStrike Holdings Inc(CRWD)24,00025,000+1,0008,2128,8150.50%+603
Deckers Outdoor Corp(DECK)05,000+5,00005590.03%+559
US Bancorp(USB)012,500+12,50005280.03%+528
Datadog Inc(DDOG)30,42547,425+17,0004,3474,7050.27%+358
GDS Holdings Ltd(GDS)012,500+12,50003170.02%+317
Workiva Inc(WK)10,00017,500+7,5001,0951,3280.07%+233
Vigil Neuroscience Inc1,991,0381,967,064-23,9743,3853,5010.20%+117
Intel Corp(INTC)40,00040,00008029080.05%+106
PayPal Holdings Inc(PYPL)15,00020,000+5,0001,2801,3050.07%+25
Avidity Biosciences Inc1,127,2951,110,610-16,68532,78232,7851.85%+3
Caribou Biosciences Inc(CRBU)105,347105,3470168960.01%-71
Cyclerion Therapeutics Inc(CYCN)116,155116,15503742900.02%-84
Kronos Bio Inc842,954842,95408016950.04%-105
Instil Bio Inc(TIL)192,433203,933+11,5003,6743,5400.20%-133
Couchbase Inc60,00049,850-10,1509357850.04%-150
Qualcomm Inc(QCOM)15,00014,000-1,0002,3042,1510.12%-154
Ferrari NV
COM
2,0001,500-5008546360.04%-218
Occidental Petroleum Corp(OXY)15,00010,000-5,0007414940.03%-248
Ironwood Pharmaceuticals Inc(IRWD)110,532110,53204901620.01%-327
Kanzhun Ltd(BZ)25,0000-25,0003450—-345
Dynatrace Inc(DT)82,72987,729+5,0004,4964,1360.23%-360
Nebius Group NV(NBIS)120,000140,000+20,0003,3242,9550.17%-369
Tourmaline Bio Inc91,42691,42601,8541,3910.08%-464
Monday.Com Ltd
SHS
2,0000-2,0004710—-471
Nu Holdings Ltd(NU)50,0000-50,0005180—-518
HOOKIPA Pharma Inc566,640566,64001,1396120.03%-527
Meta Platforms Inc(META)1,0000-1,0005860—-586
New Oriental Education & Technology Group Inc(EDU)68,50079,500+11,0004,3963,8010.21%-595
Black Diamond Therapeutics Inc1,046,5171,046,51702,2401,6220.09%-617
Dollar Tree Inc(DLTR)10,0000-10,0007490—-749
Foghorn Therapeutics Inc.(FHTX)720,720720,72003,4022,6310.15%-771
BIOAGE Labs Inc(BIOA)388,000382,406-5,5942,2471,4380.08%-809
Procore Technologies Inc(PCOR)20,00010,000-10,0001,4996600.04%-838
Achilles Therapeutics PLC755,3750-755,3758610—-861
Remitly Global Inc(RELY)490,449490,449011,06910,2010.58%-868
Sagimet Biosciences Inc(SGMT)724,771724,77103,2612,3630.13%-899
Omega Therapeutics Inc1,323,5300-1,323,5309870—-987
HCA Healthcare Inc(HCA)3,7500-3,7501,1260—-1,126
Applied Therapeutics Inc1,633,7680-1,633,7681,3990—-1,399
NVIDIA Corp(NVDA)48,93244,432-4,5006,5714,8160.27%-1,756
Lexeo Therapeutics Inc(LXEO)603,435603,43503,9712,0940.12%-1,877
Generation Bio Co2,982,7332,968,925-13,8083,1621,2020.07%-1,959
ProQR Therapeutics NV
SHS EURO
1,575,0001,552,183-22,8174,1742,0640.12%-2,109
Regenxbio Inc(RGNX)284,0000-284,0002,1950—-2,195
Taysha Gene Therapies Inc(TSHA)6,602,4756,514,737-87,73811,4229,0550.51%-2,367
Elastic NV
ORD SHS
25,0000-25,0002,4770—-2,477
Seer Inc(SEER)4,000,0004,000,00009,2406,7600.38%-2,480
Oric Pharmaceuticals Inc(ORIC)1,007,5751,007,57508,1315,6220.32%-2,509
Sea Ltd(SE)25,0000-25,0002,6530—-2,652
Ovid Therapeutics Inc(OVID)2,850,0000-2,850,0002,6610—-2,661
Spyre Therapeutics Inc(SYRE)374,000368,598-5,4028,7075,9470.34%-2,759
Allovir Inc6,597,1670-6,597,1672,7710—-2,771
Cartesian Therapeutics Inc(RNAC)572,236563,272-8,96410,2497,4240.42%-2,825
Freeport-McMoRan Inc(FCX)75,0000-75,0002,8560—-2,856
Rapport Therapeutics Inc(RAPP)384,197378,469-5,7286,8163,7960.21%-3,020
Dyne Therapeutics Inc(DYN)1,347,4562,717,987+1,370,53131,74628,4301.60%-3,316
IONQ Inc(IONQ)170,000170,00007,1013,7520.21%-3,349
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Siren, L.L.C. — 13F Holdings — Q1 2025 | TickerTrail