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.

And as of this weekend, we’ve officially hit that 45-day mark since Q3 ended.

Translation: Fresh 13Fs just dropped.

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

Berkshire’s Q3 moves made waves:

• Buys: Alphabet (GOOGL), Chubb (CB), Lennar (LEN), Domino’s Pizza (DPZ).

• Sells: VeriSign (VRSN), Davita (DVA), Bank of America (BAC).

The addition of Alphabet was the biggest surprise. Berkshire owned roughly $4.3 billion worth of Alphabet as of Sept. 30, making it the firm’s 10th largest equity holding.

Maybe Mr. Buffett agrees with my evaluation that Alphabet’s dirt cheap, cash cow search business coupled with juggernauts like YouTube, Waymo, and Google Cloud make the stock a bargain?

Berkshire notoriously stays away from technology companies as Warren Buffett prefers to invest within his “circle of competence.”

But times are changing in Omaha. Responsibilities are being handed over to Greg Abel as Buffett is scheduled to step down at the end of 2025.

The GOOGL position is just 1.62% of Berkshire’s overall portfolio (for reference Apple is Berkshire’s largest position at 22.7%), but it’ll be interesting to track whether this position grows over the next few quarters.

Bill Ackman’s Pershing Square

Ackman’s hedge fund Pershing Square made some interesting adjustments in Q3:

• Buys: Nothing!

• Sells: Restaurant Brands (QSR), 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.

What’s interesting is that Pershing Square had no buys to announce. Is Ackman turning bearish on today’s market?

Likely no… He’s typically an optimist.

His largest positions include some of my favorite stocks like Uber Technologies (UBER) and Alphabet (GOOG/GOOGL), as well as some lesser-known names like Brookfield Corp. (BN) and Howard Hughes (HHH).

Michael Burry’s Scion Asset Management

Michael Burry rose to fame for his 2007 bet against the housing market – a move famously portrayed in The Big Short.

Here are his recent portfolio moves:

• Buys: Puts on Palantir (PLTR) and Nvidia (NVDA). Calls on Pfizer (PFE) and Halliburton (HAL)

• Sells: Calls on UnitedHealth (UNH), Regeneron (REGN), Lululemon (LULU) and Meta Platforms (META)

Burry has been outspokenly bearish on the AI trade, having bought put options on Nvidia and Palantir multiple times this year.

Those bets likely have not paid off too well.

Regardless, overshadowing this 13F release was the news that Burry is shutting down his hedge fund.

"My estimation of value in securities is not now, and has not been for some time, in sync with the markets," Burry said in a letter to shareholders.

Dan Loeb’s Third Point

Loeb is best known for his activist investment strategy, which involves taking large stakes in underperforming companies and publicly pushing for changes.

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

• Sells: Corpay (CPAY), Intercontinental Exchange (ICE), Capital One (COF)

Loeb had unloaded nearly all of his “Mag 7” positions earlier this year over tariff concerns.

But his recent moves suggest he’s now rebuilding those tech bets as sentiment improves.

Even so, Third Point’s largest position is still PG&E – the battered California utility working to rebuild its finances after a string of devastating wildfires.

Loeb has been one of its most vocal supporters throughout the restructuring, insisting that PG&E’s turnaround is still deeply undervalued.

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.