State Street disclosed in its 2026 third-quarter 13F filing that it increased its stake in Strategy Inc. (NASDAQ: MSTR) by 6%, bringing the position to approximately $1.22 billion. The asset manager net purchased 419,102 shares during the quarter, worth about $48.5 million, ending Q3 with a total holding of 7,946,663 MSTR shares as of September 30. State Street also raised its stake in Strive Inc. (NASDAQ: ASST) by 12%, valued at $50 million. The firm has held MSTR shares since Q2 2013, though its position previously exceeded $2 billion before the recent trim-and-rebuild cycle.