A preliminary count showed that more than...

A preliminary count showed that more than 5.4 million shares, or 90%, of Plantronics Inc. common stock had been tendered in response to an offer by PI Acquisition Corp. for the Santa Cruz, Calif., company . . . Transamerica Corp., San Francisco, increased its common stock dividend 1 cent to 47 cents a share, payable Oct. 31 to holders of record Oct. 5 . . . KaiserTech Ltd. said its Kaiser Aluminum & Chemical Corp. unit has completed the divestiture of its entire 26.7% interest in Hindustan Aluminum Corp. of India.