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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 (2016Q1)
Portfolio Summary: 34 holdings with a total value of $275,445,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 BERKSHIRE HATHAWAY INC DEL 50 7,000 0.00%
2 NEVRO CORP COM 142 36,000 0.01% Put
3 ADAPTIMMUNE THERAPEUTICS PLC 7,691 63,000 0.02%
4 Nivalis Therapeutics Inc 30,000 125,000 0.05%
5 Natera, Inc. 31,693 302,000 0.11%
6 ALLSCRIPTS HEALTHCARE SOLUTN 48,000 634,000 0.23%
7 BioPharmX Corporation 700,636 764,000 0.28%
8 MANNKIND CORP. 4,385 899,000 0.33% Put
9 MASIMO CORP 25,900 1,084,000 0.39%
10 CYTRX CORP 513,092 1,375,000 0.50%
11 INVUITY INC 212,808 1,536,000 0.56%
12 ACCELERATE DIAGNOSTICS INC 117,176 1,684,000 0.61%
13 LIPOCINE INC NEW 240,438 2,440,000 0.89%
14 REGENXBIO INC COM 241,323 2,606,000 0.95%
15 GLOBAL BLOOD THERAPEUTICS INCORPORATED 190,981 3,029,000 1.10%
16 CORIUM INTERNATIONAL INC 828,332 3,197,000 1.16%
17 CELLDEX THERAPEUTICS INC NEW 989,376 3,740,000 1.36%
18 ISHARES 20 YEAR TREASURY BOND ETF 30,000 3,918,000 1.42%
19 BIOCRYST PHARMACEUTICALS 1,973,932 5,586,000 2.03%
20 BRISTOL MYERS SQUIBB CO 109,701 7,008,000 2.54%
21 Atara Biotherapeutics Inc 473,126 9,004,000 3.27%
22 SYMMETRY SURGICAL INC 919,680 9,068,000 3.29%
23 MIRATI THERAPEUTICS INC COM 428,457 9,169,000 3.33%
24 FIVE PRIME THERAPEUTICS INC 226,998 9,223,000 3.35%
25 BLUEBIRD BIO INC COM 226,371 9,621,000 3.49%
26 AGENUS INC 2,414,524 10,044,000 3.65%
27 DICERNA PHARMACEUTICALS INC 2,026,894 10,864,000 3.94%
28 AVEXIS INC COM 473,374 12,895,000 4.68%
29 OMEROS CORP 891,522 13,676,000 4.97%
30 KITE PHARMA INCORPORATED 343,503 15,770,000 5.73%
31 ACHILLION PHARMACEUTICALS IN 2,558,859 19,754,000 7.17%
32 LA JOLLA PHARMACEUTICAL CO 1,169,065 24,445,000 8.87%
33 INCYTE CORP 379,415 27,496,000 9.98%
34 ALNYLAM PHARMACEUTICALS INC 866,379 54,383,000 19.74%

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001493152-16-009638, filed 2016.05.11).

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.