Sean Williams

Sean Williams

TMFUltraLong

Sean Williams is a data-driven Motley Fool contributing analyst who's been investing for 27 years and has penned north of 16,000 articles. You'll find him at the intersection of politics and investing tackling macroeconomic topics of interest (Social Security and Donald Trump's economic/tax policies), analyzing which stocks billionaire investors (e.g., Warren Buffett) are buying and selling, and digging into how the world's most-influential businesses and trends -- everything from the evolution of artificial intelligence (AI) to the next stock split -- are changing Wall Street. He holds a B.A. in Economics from the University of California, San Diego.

May 22, 2026 by Sean Williams

Warren Buffett's Successor, Greg Abel, Could Have Bought Any of 478 S&P 500 Companies -- but Chose to Pile $234 Million Into the Oracle of Omaha's Favorite Stock

Berkshire Hathaway's current and now-former boss collectively purchased $78 billion of this stock, which is near and dear to Buffett, since July 2018.

Recent Articles by Sean Williams

Warren Buffett's Successor, Greg Abel, Could Have Bought Any of 478 S&P 500 Companies -- but Chose to Pile $234 Million Into the Oracle of Omaha's Favorite Stock

Uh-Oh! The Probability of an FOMC Rate Hike Is Rapidly Climbing.

Billionaire Bill Ackman Piled Into Amazon and Microsoft and Slashed His Fund's Mammoth Stake in This AI Kingpin by 95%

Think Inflation Is Fed Chair Kevin Warsh's Biggest Challenge? Guess Again...

Billionaire Philippe Laffont Dumped AI Titan Nvidia for the 11th Time in 12 Quarters. What Does He Know That Wall Street Doesn't?

Billionaire David Tepper of Appaloosa Is Piling Into the AI Revolution With These 3 Big Purchases

7 Words From New Fed Chair Kevin Warsh That Portend a Significant Shift in Central Bank Ideology -- but Are Investors Paying Attention?

SpaceX Is Kicking Off IPO Mania -- but It's Also Reviving Stock-Split Euphoria

Billionaire Stanley Druckenmiller Dumped Google Parent Alphabet and Piled Into a Trio of Skyrocketing Memory and Storage Stocks

Will a Kevin Warsh-Led Fed Sink the Stock Market? Here's What the Puzzle Pieces Suggest.

Warren Buffett's Successor, Greg Abel, Just Sold 16 Stocks, but Piled Into an AI Titan That's Now a Top-5 Position for Berkshire Hathaway

Wow! The Federal Reserve's May Inflation Forecast Was Just Updated, and Things Are Looking Worse for Wall Street.

SpaceX Accelerates Its IPO Timeline: 10 Things You Need to Know

New Fed Chair Kevin Warsh Has a $6.7 Trillion Conundrum -- and Wall Street Is Stuck in the Middle

There's a Mammoth Disagreement Brewing Within the Federal Reserve Over Artificial Intelligence (AI) -- and It May Reshape Monetary Policy

Prediction: The Trump Bull Market Will Come to an Abrupt End Because of 2 Decisions Made by the President

6 Words From Now-Former Fed Chair Jerome Powell That Will Echo Through Wall Street for Years to Come

Yikes! The Federal Reserve's May Inflation Forecast Is In, and It Has Big Implications for Social Security's 2027 COLA.

A Historical Double Whammy Makes a Stock Market Crash More Likely Under President Donald Trump

Warren Buffett's Successor, Greg Abel, Dumped Amazon and Domino's, and More Than Tripled Berkshire's Stake in a Virtual Monopoly in a Massive Portfolio Overhaul

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