Siren, L.L.C. Q4 2024 Filing

Filed February 14, 2025

Portfolio Value

$2.3T

Holdings

117

Report Date

Q4 2024

Filing Type

13F-HR

All Holdings (117 positions)

#StockSharesValue% PortfolioType
1
SRRKScholar Rock Holding Corp
9,250,005$399.8B17.66%
2
ONCBeigene Ltd
653,721$120.7B5.33%
3
KYMRKymera Therapeutics Inc
2,969,733$119.5B5.28%
4
APLSApellis Pharmaceuticals Inc
2,816,258$89.9B3.97%
5
CRNXCrinetics Pharmaceuticals Inc
1,609,652$82.3B3.64%
6
ARGXargenx SE
115,045$70.8B3.13%
7
BCAXBicara Therapeutics Inc
3,272,827$57.0B2.52%
8
ARWRArrowhead Pharmaceuticals Inc
2,901,681$54.6B2.41%
9
NAMSNewAmsterdam Pharma Company NV
2,095,638$53.9B2.38%
10
SEPNSepterna Inc
2,202,514$50.4B2.23%
11
CNTACentessa Pharmaceuticals PLC
3,004,677$50.3B2.22%
12
SWTXSpringWorks Therapeutics Inc
1,377,701$49.8B2.20%
13
NMRANeumora Therapeutics Inc
4,396,100$46.6B2.06%
14
WVEWAVE Life Sciences Ltd
3,750,491$46.4B2.05%
15
ASNDAscendis Pharma A/S
297,321$40.9B1.81%
16
MDGLMadrigal Pharmaceuticals Inc
125,942$38.9B1.72%
17
TBLATaboola.com Ltd
9,969,495$36.4B1.61%
18
APGEApogee Therapeutics Inc
747,325$33.9B1.50%
19
MRUSMerus NV
784,412$33.0B1.46%
20
RNAAvidity Biosciences Inc
1,127,295$32.8B1.45%
21
VERAVera Therapeutics Inc
758,465$32.1B1.42%
22
DYNDyne Therapeutics Inc
1,347,456$31.7B1.40%
23
XENEXenon Pharmaceuticals Inc
743,769$29.2B1.29%
24
LXRXLexicon Pharmaceuticals Inc
38,918,903$28.8B1.27%
25
BCYCBicycle Therapeutics PLC
1,839,398$25.8B1.14%
26
RVMDRevolution Medicines Inc
571,548$25.0B1.10%
27
PCVXVaxcyte Inc
299,991$24.6B1.08%
28
RCUSArcus Biosciences Inc
1,612,077$24.0B1.06%
29
ERASErasca Inc
8,857,179$22.2B0.98%
30
STOKStoke Therapeutics Inc
2,000,000$22.1B0.97%
31
1K0IGM Biosciences Inc
3,330,422$20.3B0.90%
32
EWTXEdgewise Therapeutics Inc
734,343$19.6B0.87%
33
SLNSilence Therapeutics PLC
2,831,770$19.5B0.86%
34
CYTKCytokinetics Inc
402,323$18.9B0.84%
35
DNLIDenali Therapeutics Inc
834,028$17.0B0.75%
36
KRROKorro Bio Inc
418,833$15.9B0.70%
37
SLNOSoleno Therapeutics Inc
351,818$15.8B0.70%
38
PRTAProthena Corporation PLC
1,099,840$15.2B0.67%
39
SLDBSolid Biosciences Inc
3,749,041$15.0B0.66%
40
CGEMCullinan Therapeutics Inc
1,211,357$14.8B0.65%
41
UPBUpstream Bio Inc
800,000$13.2B0.58%
42
TRVITrevi Therapeutics Inc
2,906,060$12.0B0.53%
43
KURAKura Oncology Inc
1,339,942$11.7B0.52%
44
TSHATaysha Gene Therapies Inc
6,602,475$11.4B0.50%
45
RELYRemitly Global Inc
490,449$11.1B0.49%
46
RNACCartesian Therapeutics Inc
572,236$10.2B0.45%
47
MSFTMicrosoft Corp
23,000$9.7B0.43%
48
JANXJanux Therapeutics Inc
175,000$9.4B0.41%
49
SEERSeer Inc
4,000,000$9.2B0.41%
50
ISIIonis Pharmaceuticals Inc
250,000$8.7B0.39%
51
SYRESpyre Therapeutics Inc
374,000$8.7B0.38%
52
CRWDCrowdStrike Holdings Inc
24,000$8.2B0.36%
53
IOVAIovance Biotherapeutics Inc
1,106,040$8.2B0.36%
54
ORICOric Pharmaceuticals Inc
1,007,575$8.1B0.36%
55
TNGXTango Therapeutics Inc
2,603,897$8.0B0.36%
56
AMZNAmazon.com Inc
36,500$8.0B0.35%
57
RCKTRocket Pharmaceuticals Inc
600,000$7.5B0.33%
58
IONQIONQ Inc
170,000$7.1B0.31%
59
IHSIHS Holding Limited
2,357,520$6.9B0.30%
60
RAPPRapport Therapeutics Inc
384,197$6.8B0.30%
61
NVDANVIDIA Corp
48,932$6.6B0.29%
62
NOWServiceNow Inc
5,605$5.9B0.26%
63
SLRNACELYRIN Inc
1,729,665$5.4B0.24%
64
PDDPDD Holdings Inc
52,901$5.1B0.23%
65
GOSSGossamer Bio Inc
5,415,968$4.9B0.22%Call
66
DTDynatrace Inc
82,729$4.5B0.20%
67
BABoeing Co
25,000$4.4B0.20%
68
N1UANew Oriental Education & Technology Group Inc
68,500$4.4B0.19%
69
DDOGDatadog Inc
30,425$4.3B0.19%
70
PRQRProQR Therapeutics NV
1,575,000$4.2B0.18%
71
LXEOLexeo Therapeutics Inc
603,435$4.0B0.18%
72
ADBEAdobe Inc
8,798$3.9B0.17%
73
PHATPhathom Pharmaceuticals Inc
460,753$3.7B0.17%
74
TILInstil Bio Inc
192,433$3.7B0.16%
75
FROGJfrog Ltd
120,116$3.5B0.16%
76
FHTXFoghorn Therapeutics Inc.
720,720$3.4B0.15%
77
VIGLVigil Neuroscience Inc
1,991,038$3.4B0.15%
78
NBISNebius Group NV
120,000$3.3B0.15%
79
SGMTSagimet Biosciences Inc
724,771$3.3B0.14%
80
GBIOGBXGeneration Bio Co
2,982,733$3.2B0.14%
81
TSMTaiwan Semiconductor Manufacturing Co Ltd
15,000$3.0B0.13%
82
FCXFreeport-McMoRan Inc
75,000$2.9B0.13%
83
Allovir Inc
6,597,167$2.8B0.12%
84
OVIDOvid Therapeutics Inc
2,850,000$2.7B0.12%
85
SESea Ltd
25,000$2.7B0.12%
86
ESTCElastic NV
25,000$2.5B0.11%
87
QCOMQualcomm Inc
15,000$2.3B0.10%
88
BIOABIOAGE Labs Inc
388,000$2.2B0.10%
89
BDTXBlack Diamond Therapeutics Inc
1,046,517$2.2B0.10%
90
RGNXRegenxbio Inc
284,000$2.2B0.10%
91
TRMLTourmaline Bio Inc
91,426$1.9B0.08%
92
PCORProcore Technologies Inc
20,000$1.5B0.07%
93
APLTApplied Therapeutics Inc
1,633,768$1.4B0.06%
94
GOOGLAlphabet Inc
7,000$1.3B0.06%
95
PYPLPayPal Holdings Inc
15,000$1.3B0.06%
96
HOOKHOOKIPA Pharma Inc
566,640$1.1B0.05%
97
HCAHCA Healthcare Inc
3,750$1.1B0.05%
98
BEKEKe Holdings Inc
60,000$1.1B0.05%
99
WKWorkiva Inc
10,000$1.1B0.05%
100
PANWPalo Alto Networks Inc
6,000$1.1B0.05%
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