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RA Capital Management 13F holdings, Q1 2018

Holdings as of March 31, 2018 · filings on SEC EDGAR · latest filing →

RA Capital Management disclosed 31 US equity positions worth $1.3bn in its Q1 2018 13F filing. The largest position was WVE at 23.1% of the reported book, followed by ASND and AVEXIS INC. Against the Q4 2017 filing, it opened 9 new positions, added to 2 and reduced 10 among the top 31 holdings.

← Q4 2017 · Q2 2018 →

What did RA Capital Management own in Q1 2018? Top 31 positions

#StockSectorWeightValueSharesΔ sharesvs Q4 2017
1 WVE WAVE LIFE SCIENCES LTD Healthcare 23.1%$301.2m7,512,049 0% held
2 ASND ASCENDIS PHARMA A S Healthcare 21.2%$277.3m4,240,536 -24% reduced
3 AVEXIS INC 9.7%$127.1m1,028,289 -12% reduced
4 MYOVANT SCIENCES LTD 4.6%$60.2m2,830,455 0% held
5 SG7 SAGE THERAPEUTICS INC 4.4%$56.9m353,133 -22% reduced
6 INFLARX NV 3.6%$46.7m1,620,653 -44% reduced
7 ZOGENIX INC 3.5%$45.9m1,145,268 0% held
8 DICERNA PHARMACEUTICALS INC 2.9%$37.6m3,933,489 -21% reduced
9 SCPHARMACEUTICALS INC 2.7%$35.4m2,857,143 0% held
10 ENDOCYTE INC 2.7%$35.3m3,881,793 15% added
11 TGTX TG THERAPEUTICS INC Healthcare 2.7%$35.1m2,472,344 new
12 KALA PHARMACEUTICALS INC 2.6%$33.5m2,113,236 0% held
13 BCRX BIOCRYST PHARMACEUTICALS Healthcare 2.6%$33.3m6,984,692 0% held
14 RA PHARMACEUTICALS INC 1.6%$20.5m3,851,808 185% added
15 SLDB SOLID BIOSCIENCES INC 1.5%$20.2m2,689,444 new
16 APELLIS PHARMACEUTICALS INC 1.5%$19.9m900,000 0% held
17 CLEARSIDE BIOMEDICAL INC 1.3%$16.4m1,525,000 new
18 AVEO PHARMACEUTICALS INC 1.1%$14.7m5,062,759 0% held
19 4XC1 KALVISTA PHARMACEUTICALS INC 1.0%$13.7m1,441,070 0% held
20 CATALYST BIOSCIENCES INC 1.0%$13.3m514,917 new
21 IOVA IOVANCE BIOTHERAPEUTICS INC Healthcare 0.9%$11.1m659,059 new
22 SPRO SPERO THERAPEUTICS INC Healthcare 0.8%$10.6m741,647 -39% reduced
23 BIOHAVEN PHARMACTL HLDG CO LTD 0.7%$9.4m363,636 -82% reduced
24 VKTX VIKING THERAPEUTICS INC Healthcare 0.7%$8.9m2,029,396 new
25 SUNESIS PHARMACEUTICALS INC 0.5%$6.7m2,471,456 -20% reduced
26 KRYS KRYSTAL BIOTECH INC Healthcare 0.4%$5.0m496,071 -29% reduced
27 GLYCOMIMETICS INC 0.3%$4.1m253,547 new
28 PROTEON THERAPEUTICS INC 0.3%$3.3m1,337,462 0% held
29 G1 THERAPEUTICS INC 0.1%$1.5m40,000 -75% reduced
30 EDGE THERAPEUTICS INC 0.0%$337.0k285,491 new
31 CTI BIOPHARMA CORP 0.0%$222.0k56,951 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.