Want to trade alongside Wall Street’s biggest players?

Thanks to Form 13F filings, you can.

Here’s the deal: any hedge fund or investment manager with more than $100 million under management is required by the SEC to file a “13F” once a quarter.

These filings reveal their stock holdings – essentially giving you a peek into the portfolios of the world’s best investors.

James Altucher once called 13Fs a “cheat code” for individual investors because they let you see exactly what billionaires like Warren Buffett and Bill Ackman are buying and selling.

Now, it’s not exactly a crystal ball. There’s a 45-day delay so you’re still looking slightly in the rearview mirror.

But the insights are still incredibly valuable.

The latest round of 13Fs hit just a few days ago.

Translation: we now know what the smart money was buying last quarter.

Let’s dive into the latest filings and see where the smartest money on Wall Street is placing its bets.

Warren Buffett’s Berkshire Hathaway

This was Warren Buffett’s last quarter at the helm of Berkshire.

Here are his most notable moves.

• Buys: Chevron (CVX), Chubb Limited (CB), Domino’s Pizza (DPZ).

• Sells: Apple (AAPL), Bank of America (BAC), Constellation Brands (STZ).

Berkshire continued to sell down both its Apple and Bank of America positions.

Chevron was Berkshire’s largest buy, adding over 8 million shares in Q4 to bring its total holding to 130 million shares, valued at nearly $20 billion or 7.24% of Berkshire’s overall portfolio.

Bill Ackman’s Pershing Square

Ackman’s hedge fund Pershing Square made some interesting adjustments in Q4:

• Buys: Meta Platforms (META), Amazon (AMZN).

• Sells: Alphabet (GOOG), Chipotle (CMG), Uber Technologies (UBER)

I pay close attention to Ackman’s moves because he runs a concentrated portfolio – usually around 10-12 names.

That’s a strategy I relate to at The Million Mission, where I focus on a few high-conviction ideas rather than the sprawling, ultra-diversified approach used by most large money managers.

He likes two of my favorite stocks in Meta and Amazon.

And although he sold some Uber, it’s still his second largest position behind Brookfield Corporation, so I’m not sweating it.

Brad Gerstner’s Altimeter Capital

Gerstner also runs a concentrated portfolio focusing on technology stocks.

Here are his latest moves:

• Buys: Nvidia (NVDA), Microsoft (MSFT), Amazon (AMZN), CoreWeave (CRWV).

• Sells: Broadcom (AVGO), Robinhood (HOOD), Alibaba (BABA), Arm Holdings (ARM).

At a time when the financial media is calling the end of the MAG 7, Gerstner is loading up.

I agree with Gerstner that both Nvidia and Amazon are worth buying at these levels.

His CoreWeave position is also brand new, buying 3.2 million shares that now make up 3.5% of his overall portfolio.

David Tepper’s Appaloosa Management

Last week, David Tepper, who oversees nearly $7 billion at Appaloosa, filed his fund's 13F.

Tepper’s aggressive style was evident in his Q4 filings:

• Buys: Micron (MU), Meta Platforms (META), Alphabet (GOOG), American Airlines (AAL).

• Sells: Alibaba (BABA), JD.com (JD), Chinese Tech (KWEB).

After loading up on Chinese tech stocks in 2025, Tepper is quickly selling off his stake.

Meanwhile, he’s also loading up on large cap tech stocks like Micron, Meta, and Alphabet…

I agree. Large cap tech isn’t dead. This is a buying opportunity.

Nvidia (NVDA)

It’s not just asset managers that have to file 13Fs.

Corporations with large investment arms must also file these forms.

Nvidia’s 13F revealed its long-talked-about investment in Intel (INTC).

Nvidia now owns $7.93 billion in Intel stock, which makes up 60% of Nvidia’s total portfolio.

Why This Information Matters

1. Spot Trends Before the Market Moves – Seeing multiple fund managers piling into similar stocks can indicate emerging trends.

2. Follow the Smart Money – If Ackman is buying a stock that’s currently under the radar, it might be worth investigating.

3. Avoid Potential Pitfalls – If hedge funds are dumping a stock you own, it could signal risks that aren’t yet fully priced in.

While 13F filings shouldn’t be followed blindly, they are a powerful tool for identifying high-conviction trades from the world’s top investors.

By keeping an eye on these reports, you can make more informed investment decisions and stay ahead of the market.