Mubadala Lifts IBIT Stake 16% to $566M as Harvard Cuts Holdings

Latest 13F filings through May 17 show Abu Dhabi’s Mubadala increased its BlackRock iShares Bitcoin Trust (IBIT) position by 16% to 14.72 million shares valued at $565.6 million for the quarter ended March 31. The move extends Mubadala’s unbroken buying streak that began in Q4 2024 and brings combined Abu Dhabi sovereign holdings past $1 billion when including Al Warda’s stake. In contrast, Harvard Management trimmed its Bitcoin ETF exposure by 43% and exited its Ethereum ETF position entirely, highlighting a widening divergence between sovereign accumulation and risk-sensitive institutional retrenchment that continues to support ETF inflows and Bitcoin price discovery.