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RA Capital Management 13F holdings, Q1 2010

Holdings as of March 31, 2010 · filings on SEC EDGAR · latest filing →

RA Capital Management disclosed 21 US equity positions worth $102.2m in its Q1 2010 13F filing. The largest position was BSTC at 16.7% of the reported book, followed by DEPOMED INC and ARTHROCARE CORP. Against the Q4 2009 filing, it opened 13 new positions, added to 4 and reduced 4 among the top 21 holdings.

← Q4 2009 · Q3 2010 →

What did RA Capital Management own in Q1 2010? Top 21 positions

#StockSectorWeightValueSharesΔ sharesvs Q4 2009
1 BSTC BIOSPECIFICS TECHNOLOGIES CO 16.7%$17.1m614,917 -27% reduced
2 DEPOMED INC 10.2%$10.4m2,934,697 new
3 ARTHROCARE CORP 9.4%$9.7m324,965 new
4 TEVA TEVA PHARMACEUTICAL INDS LTD Healthcare 9.1%$9.3m148,191 new
5 PHARMASSET INC 8.6%$8.8m329,213 -6% reduced
6 GILD GILEAD SCIENCES INC Healthcare 8.6%$8.8m193,765 66% added
7 ALXN ALEXION PHARMACEUTICALS INC 7.8%$7.9m146,128 new
8 UTHR UNITED THERAPEUTICS CORP DEL Healthcare 7.0%$7.2m129,252 new
9 LIGAND PHARMACEUTICALS INC 4.2%$4.3m2,483,690 18716% added
10 PSIVIDA CORP 3.5%$3.6m910,930 new
11 AMAG AMAG PHARMACEUTICALS INC 2.5%$2.6m73,200 -60% reduced
12 CHINA BIOLOGIC PRODS INC 2.2%$2.3m206,652 1697% added
13 PAR $.02 1.8%$1.8m373,940 new
14 ANADYS PHARMACEUTICALS INC 1.7%$1.7m680,200 new
15 AASTROM BIOSCIENCES INC 1.6%$1.7m1,015,202 new
16 TELIK INC 1.4%$1.4m1,712,458 261% added
17 IDENIX PHARMACEUTICALS INC 1.2%$1.2m427,614 -58% reduced
18 SENOMYX INC 0.8%$800.0k244,402 new
19 RAPTOR PHARMACEUTICAL CORP 0.8%$770.0k409,709 new
20 ENZB ENZO BIOCHEM INC 0.6%$618.0k102,700 new
21 SOMAXON PHARMACEUTICALS INC 0.2%$216.0k24,993 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.