Abu Dhabi sovereign wealth fund Mubadala Investment Company has raised its position in BlackRock’s iShares Bitcoin Trust (IBIT), reporting ownership of 14,721,917 shares worth $565,616,051 per share. March 31, 2026, according to a 13F filing published today.
That’s up 16% from the 12,702,323 shares the fund held at the end of Q4. quarter 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 filing in Q1 2025 that saw 8,726,972 shares valued at $408.5 million, then rose to 12.7 million shares valued at $630.6 million as of Dec. 31, 2025 — a 46% increase in a single quarter. Today’s filing adds another 2 million shares to that ledger, pushing the position past half a billion dollars for the third quarter in a row.
Mubadala manages a global portfolio of over $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. Accessed through the regulated IBIT structure, Bitcoin 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 long-term stake in Arm Holdings.
Abu Dhabi’s Bitcoin Investments
Abu Dhabi’s sovereign accumulation does not stop at Mubadala. Al Warda Investments, an entity linked to the Abu Dhabi Investment Council – which itself operates under the Mubadala umbrella – has also built an IBIT position, reporting 8.2 million shares worth approximately $408 million by the end of 2025. The two Abu Dhabi vehicles combined had more than $1 billion in IBIT for participation in the Gulf1 mileton in December. in regulated bitcoin products.
The Q1 2026 application arrives on the back of broader institutional and government interest in bitcoin. Goldman Sachs disclosed approximately $2.36 billion in total crypto exposure through IBIT and other vehicles, while Jane Street reported 20.3 million IBIT shares worth $790 million at the end of 4/4. quarter 2025.
On the sovereign front, Texas became the first US state to purchase bitcoin for a strategic reserve during the same period.
On a similar note, new financial disclosures show that the Trump family trust bought shares in several bitcoin-related companies — including Coinbase, MARA Holdings and Strategy — during the first quarter of 2026 as the administration advances a more crypto-friendly policy agenda.
The filings revealed thousands of trades worth between $220 million and $750 million in total.