Berkshire Hathaway discloses a $4.3 billion purchase of new Alphabet shares and sells more Apple shares.

The 13F report disclosed by Berkshire Hathaway, the company under Buffett's control, shows that in the third quarter, it invested $4.3 billion in Google's parent company, Alphabet, holding 17.85 million shares. It also further reduced its holdings in Apple. This is the last detailed introduction of its stock investment portfolio by Buffett before ending his 60-year tenure as CEO. Berkshire reduced its Apple stock holdings from 280 million shares to 238.2 million shares, selling nearly three-quarters of the 905 million shares it once held. Apple remains the largest stock held by Berkshire, valued at $60.7 billion.