Astex Sued by Shareholder Over $886 Million Otsuka Bid

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Astex Pharmaceuticals Inc. was sued by an investor seeking more money for his shares in a planned $886 million takeover by Otsuka Holdings Co.

Astex, a cancer-drug maker based in Dublin, California, said Sept. 5 it agreed to be bought by Tokyo-based Otsuka for $8.50 a share, a 27 percent premium at the time.