Major investment firms have been buying CBSTZ at large quantities for their mutual funds. Major firms such as Fidelity, USAA, Morgan Stanley, Merrill Lynch, and especially JP MORGAN. The reason I am writing this is because I have the Thrift Savings Plan as US Government employee, and I have just witnessed a huge addition of CBSTZ vested for the people who have money going into the C-Fund. Watch this company Cubist Pharmaceuticals, and also keep a sharp eye out for the Nasdaq Symbol CBSTZ