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Institutional Investment Manager
RTW INVESTMENTS, LP
RTW INVESTMENTS, LP (CIK: 0001493215) incorporated in Delaware, located at 40 10th Avenue, New York, NY. Institutional holdings reported to the SEC.

Institutional Holdings (2017Q1)
Portfolio Summary: 28 holdings with a total value of $379,902,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 ALNYLAM PHARMACEUTICALS INC 1,092,516 55,991,000 14.74%
2 AVEXIS INC COM 623,330 47,392,000 12.47%
3 BRISTOL MYERS SQUIBB CO 570,692 31,034,000 8.17%
4 LA JOLLA PHARMACEUTICAL CO 1,028,929 30,714,000 8.08%
5 BIOCRYST PHARMACEUTICALS 3,458,120 29,048,000 7.65%
6 MEDICINES CO 572,689 28,004,000 7.37%
7 REGENXBIO INC COM 1,216,505 23,479,000 6.18%
8 Atara Biotherapeutics Inc 908,733 18,674,000 4.92%
9 AGENUS INC 4,245,882 16,007,000 4.21%
10 PTC THERAPEUTICS INC 1,305,643 12,848,000 3.38%
11 INCYTE CORP 82,490 11,026,000 2.90%
12 Oxford Immunotec Global PLC 612,903 9,494,000 2.50%
13 BLUEBIRD BIO INC COM 103,617 9,419,000 2.48%
14 MASIMO CORP 80,900 7,545,000 1.99%
15 ORASURE TECHNOLOGIES INC 566,230 7,321,000 1.93%
16 VIVEVE MED INC COM NEW 1,145,736 7,253,000 1.91%
17 DICERNA PHARMACEUTICALS INC 2,062,991 7,014,000 1.85%
18 CORIUM INTERNATIONAL INC 1,448,991 6,057,000 1.59%
19 TACTILE SYS TECHNOLOGY INC 287,876 5,455,000 1.44%
20 ARBUTUS BIOPHARMA CORP 1,446,587 4,701,000 1.24%
21 VIEWRAY INC COM USD0.01 515,612 4,388,000 1.16%
22 INVUITY INC 470,167 3,738,000 0.98%
23 GLOBAL BLOOD THERAPEUTICS INCORPORATED 26,183 965,000 0.25%
24 CELLDEX THERAPEUTICS INC NEW 241,699 873,000 0.23%
25 BioPharmX Corporation 1,283,951 648,000 0.17%
26 SENSUS HEATLHCARE INC 90,404 397,000 0.10%
27 Natera, Inc. 31,693 281,000 0.07%
28 Sensus Healthcare, Inc @6.75 6 155,000 136,000 0.04%

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001493152-17-005309, filed 2017.05.15).

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.