Buffett’s Berkshire invests in several big drugmakers

(Reuters) – Warren Buffett’s Berkshire Hathaway Inc said on Monday it has begun investing in four large drugmakers.

In a regulatory filing detailing its U.S.-listed investments as of Sept. 30, Berkshire disclosed new stakes in Abbvie Inc , Bristol-Myers Squibb Co , Merck & Co and Pfizer Inc . Berkshire also revealed a new stake in T-Mobile US Inc .

Investors monitor Omaha, Nebraska-based Berkshire’s quarterly filings to see where Buffett and his portfolio managers Todd Combs and Ted Weschler see value.

(Reporting by Jonathan Stempel in New York; Editing by Chris Reese)