Jenny Horne dives into the Oracle of Omaha's annual shareholder letter. 94-year-old Warren Buffett's Berkshire Hathaway (BRK/B) operating earnings rose 71% to $14.5B in its 4Q, while its tax payment in 2024 rose to $26.8B. Buffett's letter mapped out the famed investor's thoughts on U.S. stocks, current holdings like Apple (AAPL) and more.