The secret investments of Warren Buffett’s Berkshire Hathaway (NYSE:BRK) have been brought to light. What Happened: The undisclosed investments of Berkshire Hathaway have been made public. The company has reportedly invested in steelmaker Nucor (NYSE:NUE),

OMAHA, Neb. (AP) — Berkshire Hathaway revealed three new investments Thursday in steelmaker Nucor and two of the nation’s biggest homebuilders — Lennar and DR Horton — but none of the investments are big enough to ensure that legendary investor Warren Buffett handled them.

Warren Buffett's Berkshire Hathaway increased its holdings in UnitedHealth Group stock, and also added positions in D.R. Horton, Lamar Advertising, and Nucor.