Mubadala Boosts IBIT Stake to $566 Million

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Mubadala Increases BlackRock Bitcoin ETF Holdings to $566 Million – Sovereign Fund Extends Institutional Exposure to Regulated Crypto Product

Key Takeaways

Mubadala Investment Company held 14,721,917 shares of BlackRock’s iShares Bitcoin Trust valued at $565,616,051 as of March 31, 2026.
The position represents a 16 percent increase from 12,702,323 shares at the end of Q4 2025.
Mubadala has expanded its IBIT exposure every quarter since first disclosing a stake in Q4 2024.
Combined holdings with Al Warda Investments exceeded $1 billion in IBIT shares as of December 31, 2025.

Mubadala Expands Position in BlackRock’s iShares Bitcoin Trust

Abu Dhabi’s sovereign wealth fund Mubadala Investment Company increased its holdings in BlackRock’s iShares Bitcoin Trust (IBIT) during the first quarter of 2026. According to a 13F filing covering the period ending March 31, 2026, the fund reported ownership of 14,721,917 shares valued at $565,616,051.

This marks a 16 percent increase compared with the 12,702,323 shares disclosed at the end of the fourth quarter of 2025. The latest addition amounts to roughly 2 million shares over the previous quarter.

The filing confirms that Mubadala has maintained an uninterrupted accumulation strategy in IBIT since it first disclosed exposure to the product in late 2024. The sovereign investor has consistently added to its position through multiple reporting periods.

Accumulation Pattern Since Initial Bitcoin ETF Exposure

Mubadala first revealed a bitcoin related allocation in the fourth quarter of 2024, when it reported exposure worth at least $436 million. In the first quarter of 2025, the fund held 8,726,972 shares valued at approximately $408.5 million.

By December 31, 2025, the position had expanded to 12.7 million shares worth $630.6 million. That increase represented a 46 percent rise in share count within a single quarter.

The latest first quarter 2026 disclosure extends this pattern. With the new total surpassing $565 million in value, IBIT remains one of Mubadala’s most visible public market positions. As of the fourth quarter of 2024, IBIT was already the fund’s second largest holding, behind a longer term stake in Arm Holdings.

Mubadala manages a global portfolio exceeding $330 billion in assets. Its investments span technology, healthcare, infrastructure, private equity, and public markets. The mandate of the fund is to generate returns for the Abu Dhabi government while reducing reliance on oil revenues.

Abu Dhabi Entities Surpass $1 Billion in Combined IBIT Holdings

Mubadala’s exposure is complemented by additional bitcoin ETF holdings linked to Abu Dhabi. Al Warda Investments, an entity tied to the Abu Dhabi Investment Council and operating under the Mubadala umbrella, has also accumulated IBIT shares.

As of year end 2025, Al Warda Investments reported ownership of 8.2 million IBIT shares valued at approximately $408 million. When combined with Mubadala’s position at that time, total IBIT exposure across the two Abu Dhabi vehicles exceeded $1 billion as of December 31, 2025.

This combined allocation represents a notable level of participation by Gulf Cooperation Council sovereign entities in a regulated bitcoin investment vehicle. Both positions are held through BlackRock’s exchange traded fund structure rather than through direct bitcoin custody.

Broader Institutional and Governmental Activity Around IBIT

The first quarter 2026 filing from Mubadala was released during a period of continued institutional engagement with bitcoin related financial products.

Goldman Sachs disclosed approximately $2.36 billion in total crypto exposure through IBIT and other vehicles. Meanwhile, trading firm Jane Street reported holding 20.3 million IBIT shares worth $790 million at the end of the fourth quarter of 2025.

On the governmental side, Texas became the first US state to purchase bitcoin for a strategic reserve during the same period. Separate financial disclosures also showed that the Trump family trust acquired shares in several bitcoin linked companies, including Coinbase, MARA Holdings, and Strategy, in the first quarter of 2026. Those filings indicated thousands of trades with an overall value between $220 million and $750 million.

Together, these disclosures illustrate the growing role of regulated exchange traded products such as IBIT in providing exposure to bitcoin within traditional financial reporting frameworks.

Implications for Market Transparency and Regulated Access

All of the above positions were revealed through mandatory filings, including 13F disclosures. These filings provide visibility into equity holdings of large institutional investment managers.

For market participants, including users who monitor crypto exposure among institutional investors, such filings offer insight into how sovereign funds, banks, and trading firms allocate capital to bitcoin related products. In the case of Mubadala, the steady quarterly increases demonstrate a consistent allocation strategy through a US listed exchange traded fund.

The use of IBIT as the chosen vehicle means exposure is gained through a regulated structure managed by BlackRock. This distinguishes it from direct bitcoin holdings and aligns the investment with standard reporting and custody frameworks applied to other publicly traded securities.

Our Assessment

The first quarter 2026 filing confirms that Mubadala increased its stake in BlackRock’s iShares Bitcoin Trust to $565.6 million, extending a multi quarter accumulation trend that began in late 2024. Together with Al Warda Investments, Abu Dhabi linked entities held more than $1 billion in IBIT shares at the end of 2025. The disclosures place Mubadala among a group of institutional and governmental investors that have publicly reported significant exposure to regulated bitcoin investment products through standard financial filings.