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RA Capital Management 13F holdings, Q3 2015

Holdings as of September 30, 2015 · filings on SEC EDGAR · latest filing →

RA Capital Management disclosed 47 US equity positions worth $696.3m in its Q3 2015 13F filing. The largest position was ACHILLION PHARMACEUTICALS INC at 11.6% of the reported book, followed by AXOVANT SCIENCES LTD and DYAX CORP. Against the Q2 2015 filing, it opened 18 new positions, added to 7 and reduced 14 among the top 47 holdings.

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What did RA Capital Management own in Q3 2015? Top 47 positions

#StockSectorWeightValueSharesΔ sharesvs Q2 2015
1 ACHILLION PHARMACEUTICALS INC 11.6%$81.1m11,733,815 18% added
2 AXOVANT SCIENCES LTD 9.3%$64.6m5,000,000 0% held
3 DYAX CORP 7.0%$48.7m2,551,193 -6% reduced
4 COLL COLLEGIUM PHARMACEUTICAL INC Healthcare 4.9%$34.3m1,553,175 1% added
5 TGTX TG THERAPEUTICS INC Healthcare 4.5%$31.5m3,124,480 -5% reduced
6 REGULUS THERAPEUTICS INC 3.8%$26.4m4,039,823 7% added
7 CHRS COHERUS BIOSCIENCES INC Healthcare 3.8%$26.2m1,305,020 -5% reduced
8 ASND ASCENDIS PHARMA A S Healthcare 3.7%$25.9m1,461,268 -24% reduced
9 ZOGENIX INC 3.3%$22.7m1,679,500 new
10 AQUINOX PHARMACEUTICALS INC 3.1%$21.6m1,532,151 new
11 PROTEON THERAPEUTICS INC 3.0%$21.0m1,506,872 0% held
12 AIMT AIMMUNE THERAPEUTICS INC 2.9%$20.0m790,200 new
13 DICERNA PHARMACEUTICALS INC 2.9%$19.9m2,428,571 0% held
14 GLOBAL BLOOD THERAPEUTICS INC 2.8%$19.3m457,142 new
15 2655787D BLUEPRINT MEDICINES CORP 2.7%$18.7m878,348 0% held
16 ARDX ARDELYX INC Healthcare 2.6%$18.4m1,064,013 -38% reduced
17 CIDARA THERAPEUTICS INC 2.2%$15.0m1,180,570 3% added
18 BLUEBIRD BIO INC 2.1%$14.3m167,367 53% added
19 BCRX BIOCRYST PHARMACEUTICALS Healthcare 2.0%$13.6m1,196,603 -54% reduced
20 INTRA CELLULAR THERAPIES INC 1.8%$12.6m314,349 new
21 PRONAI THERAPEUTICS INC 1.8%$12.4m604,982 new
22 ALCOBRA LTD 1.6%$11.1m1,832,911 20% added
23 TXMD THERAPEUTICSMD INC 1.3%$8.9m1,518,460 -10% reduced
24 NEURODERM LTD 1.3%$8.8m425,000 new
25 NTRA NATERA INC Healthcare 1.2%$8.5m783,521 new
26 XNCR XENCOR INC Healthcare 1.2%$8.3m679,885 -37% reduced
27 SGMOQ SANGAMO BIOSCIENCES INC Healthcare 1.2%$8.2m1,445,430 18% added
28 TENX TENAX THERAPEUTICS INC 1.2%$8.0m2,670,300 0% held
29 NIVALIS THERAPEUTICS INC 1.1%$7.9m612,863 -19% reduced
30 ZYNERBA PHARMACEUTICALS INC 1.1%$7.5m525,000 new
31 MCRB SERES THERAPEUTICS INC Healthcare 1.0%$7.3m246,645 0% held
32 AKTX AKARI THERAPEUTICS PLC 0.9%$6.3m263,921 new
33 RARE ULTRAGENYX PHARMACEUTICAL INC Healthcare 0.8%$5.4m56,067 new
34 ALNY ALNYLAM PHARMACEUTICALS INC Healthcare 0.7%$5.1m63,026 new
35 BELLICUM PHARMACEUTICALS INC 0.7%$4.6m315,704 -69% reduced
36 AGILE THERAPEUTICS INC 0.6%$4.3m630,702 -57% reduced
37 ARCA BIOPHARMA INC 0.6%$4.0m811,227 new
38 VITAE PHARMACEUTICALS INC 0.5%$3.5m321,161 new
39 EPIZYME INC 0.4%$2.9m227,092 new
40 AURIS MED HLDG AG 0.2%$1.7m467,572 -50% reduced
41 2GT APPLIED GENETIC TECHNOL CORP 0.2%$1.6m121,100 new
42 NVAX NOVAVAX INC Healthcare 0.2%$1.1m162,060 -89% reduced
43 VICAL INC 0.1%$958.0k2,084,078 -20% reduced
44 BNTC BENITEC BIOPHARMA LTD 0.1%$864.0k140,548 new
45 DURECT CORP 0.1%$745.0k381,800 0% held
46 WAFERGEN BIO-SYSTEMS INC 0.0%$279.0k205,400 0% held
47 AMPLIPHI BIOSCIENCES CORP 0.0%$257.0k65,100 new

Weights are shares of the reported long US equity book (options excluded). Values are as filed, normalised to whole dollars. Share changes compare against the immediately preceding filing only.