Overview
- SEC filings for Q1 2026 show Abu Dhabi’s Mubadala lifted its iShares Bitcoin Trust stake 16% to 14.7 million shares worth about $566 million.
- The sovereign fund has increased its share count in five straight quarters since first disclosing a position in Q4 2024, signaling a deliberate long-term build.
- Abu Dhabi-linked investors deepened exposure, with Al Warda and the Abu Dhabi Investment Council holding 8.2 million shares by late 2025 and combined sovereign stakes above $1 billion.
- University endowments moved the other way, as Harvard cut its Bitcoin ETF position 43% to 3.04 million shares and sold its entire $86.8 million BlackRock spot Ethereum ETF.
- BlackRock’s iShares Bitcoin Trust, a spot Bitcoin ETF, remained the main gateway for institutions with more than 600,000 Bitcoin as of April 2026, while Barclays reported 4.46 million shares, Laurore trimmed 22%, and Dartmouth disclosed a $3.67 million Solana ETF investment.