Carl Icahn has purchased at least 13% of SandRidge Energy Inc., according to people familiar with the matter, joining a list of shareholders who say a deal the oil-and-gas producer struck last week makes little sense.
The stake, Icahn’s first new activist position this year, makes him the biggest holder of SandRidge shares. He had already been buying on the belief they were cheap, but scooped up millions more in the wake of the announcement that SandRidge SD, +5.29% would buy Bonanza Creek Energy Inc. for about $750 million, the people said.