Warren Buffett's Berkshire Hathaway Inc (NYSE:BRK) (NYSE:BRK) has made some important changes in its holdings during the fourth quarter of 2022, with a major reduction in Taiwan Semiconductor Mfg. Co. Ltd. (NYSE:TSM) being the highlight.

Latest 13-F filings show that Berkshire Hathaway has increased its stake in Apple Inc (NASDAQ:AAPL), having bought 333,856 shares of the tech giant during the quarter. Berkshire's current holding of Apple stands at over a whopping $116 billion, according to Whale Wisdom.

During the fourth quarter, shares of Apple lost close to 6%. However, the stock has gained over 22% since the beginning of this year.

The other major addition during the quarter includes Paramount Global (NASDAQ:PARA). Buffett's firm added over 2.4 million shares of the entertainment conglomerate, with the current valuation of its holding standing at over $1.58 billion. Paramount shares have gained over 31% so far this year.

Major Reductions: Berkshire cut its stake in Taiwan Semiconductor by 86%, with holdings now valued at over $617 million.

As Berkshire is known to hold stocks for long durations, the sale came as a surprise to investors. Berkshire had purchased 60 million shares of Taiwan Semiconductor worth $4.6 billion during the third quarter, which was by far its largest in the period. Shares of TSM dropped 4.96% in extended trading following the news.

At the same time, Berkshire also trimmed its stake in US Bancorp (NYSE:USB) by 71 million shares during the quarter. The valuation of its holdings stands at close to $300 million, according to the 13 F filing. Shares of US Bancorp have gained over 10% this year.