David Sokol, the Berkshire Hathaway manager who resigned after disclosing that he bought stock in a firm whose takeover he helped negotiate, is being investigated by U.S. regulators, a person with knowledge of the matter said.
The Securities and Exchange Commission is probing whether Sokol, 54, bought shares in Lubrizol Corp. (LZ) on inside information that Berkshire was considering buying the company, said the person, who declined to be identified because the investigation is secret. The SEC is seeking records from Sokol’s brokerage and examining trading data from the Financial Industry Regulatory Authority, the person said.