Investors don't need to wait for Berkshire Hathaway's Form 13F filing to get an idea of what the Oracle of Omaha has been up to.

Berkshire Hathaway has resumed acquiring shares of Warren Buffett's favorite media stock. Other insider buyers are focused on three biotech stocks.

Berkshire Hathaway didn’t just report earnings this quarter; it sent a clear message. In Q2 2025, Warren Buffett’s timeless investment firm posted $12.37 billion in net earnings to shareholders, down sharply from $30.3 billion in the year-ago period.