It's being reported this morning that Warren Buffett's Berkshire Hathaway Inc. slashed its stake in Taiwanese contract chipmaker TSMC as well as in some banks in Q4, while bolstering its holdings in Apple Inc. 

Berkshire cut its position in Taiwan Semiconductor Manufacturing Co Ltd (TSMC) by 86.2% to 8.29 million sponsored American depositary shares, according to a regulatory filing.

Besides TSMC, Buffett also divested 91.4% of its shares in US Bancorp (USB.N), to 6.7 million shares, and shrunk its stake in BNY Mellon by roughly 60%, to 25.1 million shares. Both cuts totaled nearly $5.5 billion at current prices.

Berkshire trimmed some positions across its portfolio of U.S. listed companies, including Chevron (CVX.N), Activision Blizzard (ATVI.O), maker of the "Call of Duty" video game, and Kroger (KR.N).

Among Berkshire's few additions are Apple, which Buffett views more as a consumer products company. Berkshire bought another 20.8 million Apple shares worth $3.2 billion, raising its stake to 5.8%, according to the filing. 

For more, read the full Reuters report.

While many on Wall Street sold AAPL stock based on iPhone sales falling in Q4, Buffett understood that this wasn't a demand issue but rather a supply issue at the Foxconn plant due to strict COVID lockdowns issued by the Chinese Government.