Billionaire investor Warren Buffett will hold at least 2% of Minneapolis-based First Bank System Inc. by early next year, a $130 million stake at today's stock price.

If the pattern of Mr. Buffett's previous investments in banks is repeated, disclosure of his stake in First Bank System could presage a major increase in the company's market valuation.

Limited Time Offer

Save $400 off your subscription. Special offer ends April 30, 2017.

14-Day Free Trial

No credit card required. Complete access to articles, breaking news and industry data.