Just caught something interesting in the latest 13F filings. Warren Buffett wrapped up his final quarter as Berkshire Hathaway CEO before retiring on Dec. 31, and the moves he made are pretty telling about how he's thinking about valuations right now.

First, the big story: dude went full sell mode on the mega-cap holdings. We're talking 7.7 million Amazon shares, 10.3 million Apple shares, and a massive 50.7 million Bank of America position getting trimmed. That's a 77% cut to the Amazon stake, a 75% reduction in Apple since mid-2023, and a 50% haircut on BofA since mid-2024. Honestly, it's the kind of move that makes you think about what he's seeing in the market.

The valuation story here is pretty clear if you look at the numbers. When Warren Buffett first loaded up on Apple back in Q1 2016, it was trading at a P/E in the low-to-mid teens. Fast forward to now and you're looking at a trailing 12-month P/E of 33. That's a massive shift. Bank of America tells a similar story—back in 2011 when Berkshire put $5 billion in, BAC was trading at a 62% discount to book value. Today it's at a 37% premium. Amazon's always been expensive by traditional metrics, but even that didn't escape the selling pressure.

But here's where it gets interesting. Despite all that selling, Warren Buffett went out with a bang by picking up over 5 million shares of The New York Times for about $352 million. That's a brand-new position, which is notable because he hasn't exactly been making splashy new bets lately.

The New York Times play makes sense if you know how Warren thinks. He's always been drawn to consumer brands with real moat-like qualities, and NYT has that. The digital subscription base keeps climbing—12.78 million as of year-end—and the pricing power is real. Digital advertising is growing in double digits. It's a cash machine that's actually working.

Now, the thing that jumps out is the valuation. Warren Buffett paid a forward P/E of 24 for The New York Times, which is pretty aggressive for someone known for waiting for the perfect price. That tells you something about how he views the opportunity.

The broader takeaway from Warren Buffett's final quarter is clear: the mega-cap tech and financial stocks have gotten too pricey for his taste, but he still sees value in quality businesses with real competitive advantages and strong cash generation. Whether that's prescient or just cautious remains to be seen, but it's definitely worth paying attention to how the market reacts to these moves.