ONXX Onyx Pharmaceuticals, Inc. (MM)

NEW YORK--Shares of biotechnology firm Amgen Inc. (AMGN) rallied 7% on Wednesday, making the stock one of the top gainers in the S&P 500 index.

The gains came after Reuters reported that Amgen is close to buying Onyx Pharmaceuticals Inc. (ONXX) with a deal possible within the next week.

The companies are discussing a price of $130 per share, or around $9.5 billion, according to the report. Onyx shares fell 2.9% to $128.19.

-Polya Lesova; 415-439-6400; AskNewswires@dowjones.com

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