Berkshire Hathaway Inc.

Billionaire Warren Buffett's company now owns about 3.2 percent of Lee Enterprises' stock as Berkshire Hathaway Inc.'s newspaper holdings continue to grow.

Buffett's Omaha-based company disclosed owning 1.66 million shares of Lee's stock on Tuesday after the Securities and Exchange Commission refused to let him keep the investment confidential.

The SEC often lets Buffett conceal investment moves while he's making them because so many investors try to copy him.