RTW INVESTMENTS, LP Q4 2018 Filing

Filed February 14, 2019

Portfolio Value

$1.1T

Holdings

46

Report Date

Q4 2018

Filing Type

13F-HR

All Holdings (46 positions)

#StockSharesValue% PortfolioType
1
RCKTRocket Pharmaceuticals Inc
16,037,486$235.8B21.95%
2
ARWRARROWHEAD PHARMACEUTICALS IN
5,316,156$66.0B6.15%
3
PTCTPTC Therapeutics Inc
1,922,346$66.0B6.14%
4
Dicerna Pharmaceuticals Inc
5,907,088$63.1B5.88%
5
BMYBRISTOL MYERS SQUIBB CO
950,780$49.4B4.60%
6
RGNXRegenxbio Inc
1,050,245$44.1B4.10%
7
LIVNLivaNova PLC
443,036$40.5B3.77%
8
SRPTSarepta Therapeutics Inc
365,911$39.9B3.72%
9
VCELVericel Corp
2,289,134$39.8B3.71%
10
3M4Masimo Corp
342,221$36.7B3.42%
11
FIXXEURHomology Medicines Inc
1,633,491$36.5B3.40%
12
ALNYAlnylam Pharmaceuticals Inc
439,498$32.0B2.98%
13
AGENEURAgenus Inc
10,135,119$24.1B2.25%
14
ESTAESTABLISHMENT LABS HLDGS INC
848,058$22.7B2.12%
15
ACHILLION PHARMACEUTICALS IN
13,749,383$21.9B2.03%
16
ADVMCHFAdverum Biotechnologies Inc
6,256,840$19.7B1.83%
17
SIBNSI BONE INC
804,327$16.8B1.56%
18
I9DNArbutus Biopharma Corp
4,335,746$16.6B1.55%
19
AXNX*AXONICS MODULATION TECH INC
1,095,396$16.6B1.54%
20
SG7SAGE Therapeutics Inc
165,990$15.9B1.48%
21
ASMBAssembly Biosciences Inc
686,644$15.5B1.45%
22
Myokardia Inc
294,898$14.4B1.34%
23
Principia Biopharma Inc
555,948$14.2B1.32%
24
CTMXCytomx Therapeutics Inc
908,586$13.7B1.28%
25
QUREUniqure NV
461,837$13.3B1.24%
26
JNJJohnson & Johnson
80,583$10.4B0.97%
27
CNCEEURConcert Pharmaceuticals Inc
788,877$9.9B0.92%
28
VRAYQViewray Inc
1,364,156$8.3B0.77%
29
CDNACareDx Inc
327,703$8.2B0.77%
30
KIDSOrthopediatrics Corp
225,000$7.8B0.73%
31
FLBFLUIDIGM CORP DEL
884,235$7.6B0.71%
32
PRQRPROQR THRAPEUTICS N V
448,141$7.1B0.66%
33
CHARDAN HEALTHCARE ACQUISITI
600,000$6.0B0.56%
34
VIVEVE MED INC
4,480,565$4.7B0.44%
35
Odonate Therapeutics Inc
311,790$4.4B0.41%
36
SLDBSolid Biosciences Inc
133,506$3.6B0.33%
37
STIMNeuronetics Inc
167,728$3.2B0.30%
38
ECORGBPELECTROCORE INC
518,010$3.2B0.30%
39
Vivus Inc 4.5 05/01/2020
4,000,000$3.2B0.30%
40
ARGXARGENX SE
28,777$2.8B0.26%
41
La Jolla Pharmaceutical Co
268,036$2.5B0.24%
42
MRTXEURMirati Therapeutics Inc
38,765$1.6B0.15%
43
MOTUS GI HLDGS INC
459,478$1.4B0.13%
44
PROTEOSTASIS THERAPEUTICS IN
313,466$1.0B0.09%
45
LIVNLIVANOVA PLC
79$723.0M0.07%Put
46
Optinose Inc
79,466$493.0M0.05%
47
RA MED SYS INC
61,281$487.0M0.05%