Mubadala Boosts Bitcoin ETF Stake 16% to $566 Million

Abu Dhabi's sovereign wealth fund Mubadala Investment Company has raised its position in BlackRock’s iShares Bitcoin Trust (IBIT), reporting ownership of 14,721,917 shares valued at $565,616,051 as of March 31, 2026, according to a 13F filing.

That marks a 16% increase from the 12,702,323 shares the fund held at the end of Q4 2025.

The disclosure extends a now-unbroken accumulation streak that began in Q4 2024, when Mubadala first disclosed bitcoin exposure worth at least $436 million. The fund added shares through a Q1 2025 filing that showed 8,726,972 shares at $408.5 million, then surged to 12.7 million shares worth $630.6 million by December 31, 2025 — a 46% jump in a single quarter.

The latest filing adds another 2 million shares to that ledger, pushing the position past the half-billion dollar mark for the third straight quarter.

Mubadala manages a global portfolio exceeding $330 billion in assets across technology, healthcare, infrastructure, private equity, and public markets, with its mandate centered on generating returns for the Abu Dhabi government while reducing the emirate's dependence on oil revenues.

Bitcoin, accessed through the regulated IBIT structure, has become one of the fund's most visible public market positions. As of Q4 2024, IBIT was already Mubadala's second-largest holding by a wide margin, trailing only a longer-term stake in Arm Holdings.

Abu Dhabi's sovereign accumulation does not stop at Mubadala. Al Warda Investments, an entity tied to the Abu Dhabi Investment Council — itself operating under the Mubadala umbrella — has also been building an IBIT position, reporting 8.2 million shares worth approximately $408 million at year-end 2025. The two Abu Dhabi vehicles combined to hold more than $1 billion in IBIT as of December 31.