warren buffett
Warren Buffett
  • US-listed shares of TSMC fell 6% Wednesday after Warren Buffett's Berkshire Hathaway sold roughly 86% of its investment last quarter.
  • Berkshire had first disclosed its $4.1 billion position in November, and the sale marks a reversal of the firm's usual tendencies to hold investments for years.
  • Shares had climbed about 18% from when they were first purchased.

Shares of TSMC dropped 6% early Wednesday after Warren Buffett's Berkshire Hathaway dumped most of its stake just months after buying the Taiwanese chipmaker's stock.

The sale, which was disclosed in fourth-quarter 13F filings late Tuesday, made up roughly 86% of the Omaha-based firm's position.

It also marked an unusually quick turnaround for Buffett's company, which typically holds onto investments for years instead of a few months.