The top institutional owners of MicroStrategy (MSTR) as of late June 2025 include The Vanguard Group, Inc. (around 6.5-7.0%), BlackRock, Inc. (around 5.0%), Capital International Investors (around 5.1-5.5%), Morgan Stanley (around 3.5%), and State Street Global Advisors, Inc. (around 1.9%). Other significant holders like Clear Street LLC, and various Growth Fund of America funds are also listed among the major shareholders.