REUTERS/Rick Wilking
- Warren Buffett's Berkshire Hathaway made striking changes to its stock portfolio last quarter.
- Buffett's company slashed its stakes in Taiwan Semiconductor, US Bancorp, and BNY Mellon.
- Berkshire also trimmed its Activision Blizzard bet and added to its Apple position.
Warren Buffett's Berkshire Hathaway slashed three key positions in its stock portfolio last quarter, a Securities and Exchange Commission filing revealed on Tuesday.