HBK Investments

HBK Investments as of March 31, 2011

Portfolio Holdings for HBK Investments

HBK Investments holds 5 positions in its portfolio as reported in the March 2011 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Bucyrus International 37.0 $148M 1.6M 91.45
Massey Energy Company 34.9 $140M 2.0M 68.36
Emergency Medical Services Corporation 16.4 $66M 1.0M 63.59
Atheros Communications 7.1 $29M 639k 44.65
Lubrizol Corporation 4.5 $18M 136k 133.96