Berkshire also disclosed it has stopped selling shares of Apple, which remained its largest common stock investment at $75.1 billion.

Few American investors are as widely revered as Warren Buffett, the 94-year-old business magnate, investor and philanthropist worth a cool 140 billion bucks (give or take a few billion).

Berkshire Hathaway (NYSE: BRK.A) has continued accumulating a stake in SiriusXM, bringing its ownership to at least 35%.