Mubadala raises its Bitcoin ETF stake 16% to $566 million crypto.news By:Peace Longe 15 May 2026 at 16:00 Abu Dhabiβs Mubadala disclosed a 16% increase in its Bitcoin ETF position to $566 million in Q1 2026. The SEC 13F filing shows Mubadala held 14,721,917 shares of BlackRockβs iShares Bitcoin Trust valued at $565,616,051 as of March 31, 2026.β¦