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RA Capital Management 13F holdings, Q4 2017

Holdings as of December 31, 2017 · filings on SEC EDGAR · latest filing →

RA Capital Management disclosed 27 US equity positions worth $1.2bn in its Q4 2017 13F filing. The largest position was WVE at 22.1% of the reported book, followed by ASND and AVEXIS INC. Against the Q3 2017 filing, it opened 8 new positions, added to 4 and reduced 6 among the top 27 holdings.

← Q3 2017 · Q1 2018 →

What did RA Capital Management own in Q4 2017? Top 27 positions

#StockSectorWeightValueSharesΔ sharesvs Q3 2017
1 WVE WAVE LIFE SCIENCES LTD Healthcare 22.1%$263.7m7,512,049 6% added
2 ASND ASCENDIS PHARMA A S Healthcare 18.7%$223.6m5,580,690 0% held
3 AVEXIS INC 10.8%$129.6m1,171,278 -5% reduced
4 SG7 SAGE THERAPEUTICS INC 6.3%$75.0m455,173 new
5 INFLARX NV 5.0%$60.3m2,876,080 new
6 BIOHAVEN PHARMACTL HLDG CO LTD 4.5%$53.9m1,997,278 0% held
7 ZOGENIX INC 3.8%$45.9m1,145,268 15% added
8 DICERNA PHARMACEUTICALS INC 3.8%$44.8m4,965,513 104% added
9 KALA PHARMACEUTICALS INC 3.3%$39.1m2,113,236 0% held
10 MYOVANT SCIENCES LTD 3.0%$35.8m2,830,455 0% held
11 SCPHARMACEUTICALS INC 2.9%$34.5m2,857,143 new
12 BCRX BIOCRYST PHARMACEUTICALS Healthcare 2.9%$34.3m6,984,692 0% held
13 KDMN KADMON HLDGS INC 1.9%$22.7m6,269,342 -6% reduced
14 APELLIS PHARMACEUTICALS INC 1.6%$19.5m900,000 new
15 SPRO SPERO THERAPEUTICS INC Healthcare 1.2%$14.4m1,225,647 new
16 ENDOCYTE INC 1.2%$14.4m3,364,648 new
17 AVEO PHARMACEUTICALS INC 1.2%$14.1m5,062,759 -55% reduced
18 4XC1 KALVISTA PHARMACEUTICALS INC 1.2%$14.1m1,441,070 144% added
19 RA PHARMACEUTICALS INC 1.0%$11.5m1,351,808 0% held
20 SUNESIS PHARMACEUTICALS INC 1.0%$11.4m3,096,840 new
21 CLEMENTIA PHARMACEUTICALS INC COM NPV 0.9%$11.1m585,403 0% held
22 KRYS KRYSTAL BIOTECH INC Healthcare 0.6%$7.4m700,000 0% held
23 ARGX ARGENX SE Healthcare 0.4%$4.8m75,816 new
24 G1 THERAPEUTICS INC 0.3%$3.2m159,780 -94% reduced
25 PROTEON THERAPEUTICS INC 0.2%$2.5m1,337,462 0% held
26 CHIASMA INC 0.2%$2.0m1,176,806 -16% reduced
27 ACHILLION PHARMACEUTICALS INC 0.1%$1.7m585,890 -96% reduced

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.