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.

Aug 18, 2025 by Sean Williams

Billionaire Warren Buffett Sold 41% of Berkshire's Stake in Bank of America and Is Piling Into a Famed Consumer Brand That's Soared 7,200% Since Its IPO

The Oracle of Omaha has sent more than 427 million shares of Bank of America to the chopping block since mid-July 2024, and he continues to build his company's stake in a well-known, consumer-facing company.

Articles by Sean Williams — Page 46

Billionaire Stanley Druckenmiller Sold His Fund's Stakes in Nvidia and Palantir, and Has Piled Into This Essential Artificial Intelligence (AI) Stock Instead

Billionaire Philippe Laffont Sold 53% of Coatue's AMD Stake in Favor of an ETF Whose Underlying Asset Has Gained Nearly 165,000,000% in 15 Years

Billionaire David Tepper Piled Into Nvidia, TSMC, and Intel, and Sold Shares of the No. 1 Artificial Intelligence (AI) Stock Among Billionaire Fund Managers

In Spite of Warren Buffett's $177 Billion Silent Warning to Wall Street, Berkshire's Boss Piled Into This Historically Cheap Stock That's Gained Over 32,000% Since Its IPO

Prediction: Nvidia Won't Be Able to Live Up to Wall Street's Sky-High Expectations on Aug. 27

Here's Precisely How Much Social Security's 2026 Cost-of-Living Adjustment (COLA) Is Expected to Boost Benefits

Social Security Is a Financial Mess -- and Here's the Truth of How It Got to This Point

The Donald Trump Administration Is Pondering Equity Stakes in Intel, TSMC, Micron, and Samsung -- and It Sets a Dangerous Precedent

Billionaire Warren Buffett Sold 69% of Berkshire's Stake in Apple and Has Loaded Up on This Industry-Leading Stock for 4 Straight Quarters

Billionaire Philippe Laffont Sold Coatue's Entire Stake in Super Micro Computer and Piled Into This Artificial Intelligence (AI) Goliath for the First Time in 9 Quarters

Nvidia, Palantir, AMD, Meta Platforms, and Microsoft -- the Stock Market's Artificial Intelligence (AI) Titans -- Have a $23 Billion Warning for Wall Street

Meet Billionaire Bill Ackman's "Magnificent" New Addition to Pershing Square's $13.7 Billion Investment Portfolio

Billionaire Stanley Druckenmiller Sold All of His Palantir and Has Piled Into This High-Flying Drug Stock for 4 Consecutive Quarters

More Than 95% of Nvidia's $4.3 Billion Investment Portfolio Has Been Put to Work in These 2 Scorching-Hot Artificial Intelligence (AI) Stocks

Prediction: President Donald Trump's Tariff and Trade Policy Will Soon Mint a New Trillion-Dollar Stock

Billionaire David Tepper Nearly 6X'd Appaloosa's Stake in Nvidia and Completely Dumped This Trillion-Dollar Artificial Intelligence (AI) Stock

The Most Anticipated Stock Splits of 2025 May Be Members of the "Magnificent Seven"

Billionaire Warren Buffett Sold 41% of Berkshire's Stake in Bank of America and Is Piling Into a Famed Consumer Brand That's Soared 7,200% Since Its IPO

President Donald Trump's "One Big, Beautiful Bill" Will Speed Up the Timeline to Social Security Benefit Cuts, New Analysis Finds

Warren Buffett's Mystery Stock Is Revealed, and It Comes as a Big Surprise to Wall Street

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