Shares of Pfizer surged as much as 18.1 percent to mark their highest intraday level since December 9, after the company said a unit of its parent Pfizer Inc will buy a near 61 percent stake from two other units after an internal restructuring.
Pfizer East India BV Netherlands will buy a 29.52 percent stake in Pfizer from Pfizer Investments Netherlands BV's for Rs 1,537 a share.
In addition, Pfizer East India BV Netherlands will receive a 31.42 percent stake in Pfizer from Pfizer Corp Panama as a gift for no remuneration.
"There are also hopes that the parent will further increase stake in Pfizer after completion of merger with Wyeth," said Ranjit Kapadia, an analyst at Centrum Broking who tracks the sector.
Pfizer Ltd is to take over local affiliate Wyeth Ltd , the companies said on November 23.
The stock closed at Rs 1,139.00, up Rs 98.25, or 9.44 percent on the BSE.
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