(Reuters) - Warren Buffett's Berkshire Hathaway Inc (N:BRKa) on Tuesday said it has more than doubled its investment in generic drugmaker Teva Pharmaceutical (NYSE:TEVA) Industries Ltd (TA:TEVA), and confirmed it has become Apple Inc's (O:AAPL) second-largest shareholder.
Berkshire said it owned about 40.5 million Teva American depositary receipts (ADRs) worth about $693 million (£513 million) as of March 31, up from 18.9 million ADRs three months earlier.
The disclosure was made in a filing with the U.S. Securities and Exchange Commission detailing Berkshire's U.S.-listed stock holdings as of March 31.
Berkshire also said it boosted its Apple stake to about 239.6 million shares worth more than $40 billion as of March 31, up from 165.3 million shares three months earlier.