RTW INVESTMENTS, LP Q2 2016 Filing

Filed August 15, 2016

Portfolio Value

$292.7B

Holdings

35

Report Date

Q2 2016

Filing Type

13F-HR

All Holdings (35 positions)

#StockSharesValue% PortfolioType
1
ALNYAlnylam Pharmaceuticals Inc
832,549$46.2B15.78%
2
INCYIncyte Corp
392,236$31.4B10.72%
3
bluebird bio Inc
612,025$26.5B9.05%
4
Achillion Pharmaceuticals Inc
2,424,136$18.9B6.46%
5
La Jolla Pharmaceutical Co
1,176,146$18.8B6.43%
6
Avexis Inc
476,367$18.1B6.19%
7
BMYBristol-Myers Squibb Co
209,701$15.4B5.27%
8
Kite Pharma Inc
285,518$14.3B4.88%
9
Symmetry Surgical Inc
922,215$12.1B4.14%
10
GQ9SPDR Gold Shares ETF
83,000$10.5B3.59%
11
ATRAGBXAtara Biotherapeutics Inc.
465,874$10.5B3.58%
12
AGENEURAgenus Inc
2,429,149$9.8B3.36%
13
BCRXBioCryst Pharmaceuticals Inc
2,237,066$6.4B2.17%
14
TLTiShares 20+ Year Treasury Bond ETF
45,000$6.3B2.14%
15
Dicerna Pharmaceuticals Inc
2,026,894$6.1B2.08%
16
ICPTUSDIntercept Pharmaceuticals Inc
39,500$5.6B1.93%
17
Celldex Therapeutics Inc
1,264,227$5.5B1.90%
18
OMEROmeros Corp
526,788$5.5B1.89%
19
Viveve Medical Inc
814,946$3.3B1.14%
20
Barclays Bank iPath Dow Jones-UBS Coffee Subindex TR ETN
144,200$3.2B1.09%
21
Corium International Inc
852,961$3.0B1.01%
22
Invuity Inc
226,042$2.2B0.74%
23
RGNXRegenxbio Inc
242,784$1.9B0.66%
24
Five Prime Therapeutics Inc
44,701$1.8B0.63%
25
GBTUSDGlobal Blood Therapeutics Inc
97,138$1.6B0.55%
26
3M4Masimo Corp
25,900$1.4B0.46%
27
Accelerate Diagnostics Inc
74,843$1.1B0.37%
28
CytRx Corp
466,200$1.0B0.36%
29
Sensus Healthcare Inc
155,000$1.0B0.34%
30
MNKD 01/20/2017 PUT 3
4,385$912.0M0.31%Put
31
MRTXEURMirati Therapeutics Inc
131,052$716.0M0.24%
32
MDRXAllscripts Healthcare Solutions Inc
48,000$610.0M0.21%
33
Biopharmx Corp
700,636$455.0M0.16%
34
NTRANatera Inc
31,693$382.0M0.13%
35
Nivalis Therapeutics Inc
30,000$138.0M0.05%