U.S. President Donald Trump disclosed a purchase of MicroStrategy Incorporated shares on May 15, 2026.

Investors interpret the move as a bullish signal for both the company and Bitcoin. The transaction indicates Trump's increasing interest in Bitcoin-related investments.

MicroStrategy issued no other major corporate announcements on this date. AM Investment Strategies LLC increased its stake based on fourth-quarter activity.

The market remains focused on the company's Bitcoin accumulation strategy and price correlation.