Fund HoldingsSiren, L.L.C.

Total Portfolio Value
$1.77B
Total Bought
$488.30M
Total Sold
$677.16M
Net Transaction
-$188.86M
Filing Period:
Securities
SharesValue ($K)
Q4 2024
Q1 2025
Change
Q4 2024
Q1 2025
Weight (%)
Change
Beigene Ltd(ONC)0498,689+498,6890135,7287.66%+135,728
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
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 Inc07,415,905+7,415,905027,4391.55%+27,439
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)0287,366+287,366044,7892.53%+44,789
Whitehawk Therapeutics Inc02,082,000+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 Inc0690,170+690,17002,3400.13%+2,340
Tesla Inc(TSLA)09,000+9,00002,3320.13%+2,332
Kalaris Therapeutics Inc0282,586+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 Inc05,208,968+5,208,96805,7300.32%+5,730
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 Inc0500,000+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 Inc01,967,064+1,967,06403,5010.20%+3,501
Intel Corp(INTC)40,00040,00008029080.05%+106
PayPal Holdings Inc(PYPL)15,00020,000+5,0001,2801,3050.07%+25
Avidity Biosciences Inc01,110,610+1,110,610032,7851.85%+32,785
Caribou Biosciences Inc105,347105,3470168960.01%-71
Cyclerion Therapeutics Inc116,155116,15503742900.02%-84
Kronos Bio Inc842,954842,95408016950.04%-105
Instil Bio Inc0203,933+203,93303,5400.20%+3,540
Couchbase Inc60,00049,850-10,1509357850.04%-150
Qualcomm Inc(QCOM)15,00014,000-1,0002,3042,1510.12%-154
Gossamer Bio Inc(Call)207,0000-207,0001870-187
Ferrari NV
COM
2,0001,500-5008546360.04%-218
Occidental Petroleum Corp(OXY)15,00010,000-5,0007414940.03%-248
Ironwood Pharmaceuticals Inc110,532110,53204901620.01%-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.720,720720,72003,4022,6310.15%-771
BIOAGE Labs Inc(BIOA)0382,406+382,40601,4380.08%+1,438
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 Inc724,771724,77103,2612,3630.13%-899
Omega Therapeutics Inc1,323,5300-1,323,5309870-987
HCA Healthcare Inc(HCA)3,7500-3,7501,1260-1,126
Applied Therapeutics Inc000000
NVIDIA Corp(NVDA)48,93244,432-4,5006,5714,8160.27%-1,756
Lexeo Therapeutics Inc603,435603,43503,9712,0940.12%-1,877
Generation Bio Co02,968,925+2,968,92501,2020.07%+1,202
ProQR Therapeutics NV
SHS EURO
1,575,0001,552,183-22,8174,1742,0640.12%-2,109
Regenxbio Inc284,0000-284,0002,1950-2,195
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 Inc4,000,0004,000,00009,2406,7600.38%-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 Inc2,850,0000-2,850,0002,6610-2,661
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 Inc572,236563,272-8,96410,2497,4240.42%-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)02,717,987+2,717,987028,4301.60%+28,430
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