Billionaire Berkshire Hathaway CEO Warren Buffett is pouring billions upon billions of dollars into US debt.
New SEC filings show Berkshire Hathaway surged its short-term Treasury bill holdings by $61.762 billion in the third quarter of 2025, reaching $305.367 billion by September 30th.
This massive increase followed a second-quarter decline.
Meanwhile, cash and equivalents stood at $76.306 billion at quarter’s end, down from $100.486 billion on June 30th.
The overall cash pile including Treasuries climbed to a record $381.673 billion, up $37.582 billion from June.
If counted as a country, Berkshire’s $305.367 billion in short-term Treasuries would rank it 10th among foreign holders.
That’s behind Ireland’s $324.1 billion and ahead of Switzerland’s $303 billion, per July 2025 U.S. Treasury data.
Buffett’s moves emphasize the legendary investor’s focus on safety and liquidity in uncertain markets, prioritizing low-risk US debt amid volatility.

