Warren Buffett’s Berkshire Hathaway has pumped $4.1 billion into major chipmaker TSMC, according to the firm’s 13F filing released on Monday. This is the first time that the fund has invested in TSMC, with Berkshire Hathaway claiming it owns about 60.1 million American depositary shares in the chip giant. Berkshire Hathaway’s holding of TSMC shares represents 1.39% of the chipmaker’s value. The announcement boosted TSMC’s stock price, with the company closing up 7.9% on the Taiwan stock exchange, according to Reuters. TSMC is one of the top two chip contractors in the world, with the other being Samsung. According to TrendForce, a Taiwanese consultancy, TSMC is projected to account for 56% of global foundry revenues in 2022. [SEC filing]