Berkshire Maintains 22.1% American Express Stake; Santander Up 27.3%
Berkshire Hathaway continued to hold a 22.1% stake in American Express as of December 31, 2025, ranking AXP among its top five equity positions in a $297.8 billion portfolio. Separately, Banco Santander increased its position in AXP by 27.3%, adding 5,428 shares to reach 25,323 shares.
1. Berkshire Hathaway’s 22.1% American Express Stake
As of December 31, 2025, Berkshire Hathaway’s equity portfolio was valued at $297.8 billion, with American Express accounting for 22.1% of its holdings, making AXP one of the top five positions. This concentration underscores the strategic importance of AXP within Berkshire’s diversified investment mix.
2. Banco Santander Raises AXP Position by 27.3%
In the latest quarter, Banco Santander added 5,428 shares of American Express, boosting its total to 25,323 shares, reflecting a 27.3% increase in its position. This move signals growing confidence by Santander in the payments company’s long-term prospects.
3. Implications for American Express
Berkshire’s sustained large-scale commitment provides stability and signals continued institutional support, while Santander’s incremental addition highlights rising investor interest. Together, these developments may bolster market sentiment and influence trading activity in American Express shares.