Crusoe $1.375B Series E closes; Mubadala Capital co-leads (October 24, 2025)

What Happened

On October 24, 2025, Crusoe Energy Systems — the Denver-based developer of the Stargate Abilene campus — announced the initial closing of an oversubscribed $1.375 billion Series E at a valuation above $10 billion. The round was co-led by Mubadala Capital and Valor Equity Partners. Paul Hastings LLP represented mubadala-capital (Partner David Ambler lead).

Significance: The UAE Dual-Exposure Pattern

This is the event that closes the circle on UAE sovereign-adjacent capital’s dual-layer equity position in the Stargate Abilene buildout:

• Tenant side: mgx-fund-management (Mubadala Investment Co. + G42 JV, Tahnoon-chaired) committed $7 billion to stargate-llc at the January 21, 2025 Oval Office announcement. See 2025-01-21–stargate-llc-white-house-announcement.
• Landlord side: Mubadala Capital (MIC subsidiary, Hani Barhoush CEO) co-leads the Crusoe round that capitalizes the site developer.

Both MGX and Mubadala Capital trace to Mubadala Investment Company, though they operate through separate investment committees and have independent GP-style mandates. The legal distinction is real for CFIUS/SEC purposes but the ownership tree converges at MIC — meaning a single Abu Dhabi sovereign owner holds equity claims at both tenant and developer layers of the same U.S. federal-AI-infrastructure asset.

Mubadala Capital had already built a multi-round relationship with Crusoe — participation in the 2022 $350M Series C and the 2024 $600M Series D — so the Series E co-lead is a deepening, not an entry.

Syndicate Composition

Co-leads: Mubadala Capital and Valor Equity Partners (Antonio Gracias, a Musk-aligned PE firm; separately connected via Apollo’s $3.5B Valor/xAI facility).

Participants: 137 Ventures, 1789 Capital (Don Jr. / Omeed Malik — see 1789-capital), Activate Capital, Altimeter Capital, Atreides Management, BAM Elevate, DPR Construction, Ora Global, Fidelity Management & Research, Founders Fund (Peter Thiel), Franklin Templeton, Galvanize, Long Journey Ventures, Lowercarbon Capital, M37 Management, MCJ, NVIDIA, Radical Ventures, Ribbit Capital, Salesforce Ventures, Saquon Barkley, Spark Capital, StepStone Group, Supermicro, T. Rowe Price, Tiger Global Management, Upper90, Winklevoss Capital, Zigg Capital. Blue Owl-managed funds were expected to join at a later closing.

The syndicate carries significant Cascade-Capture overlap: Mubadala Capital (UAE sovereign-adjacent), 1789 Capital (Trump family / Gulf capital node — see epic-inv4-trump-family-gulf-capital), and Founders Fund (Thiel network) all co-invest alongside Nvidia (which separately paid $150M deposit to Crusoe in March 2026 for orphaned Abilene capacity).

Mubadala Capital’s Individual Dollar Position

Not disclosed. The total Series E is $1.375B; Mubadala Capital’s specific contribution as co-lead is not in any primary-source disclosure (Crusoe press release, Paul Hastings advisory, Arabian Business, Alternatives Watch, Data Center Dynamics). Private-round co-lead convention at this scale suggests $200M-400M range but this is inference only.

Regulatory Posture

No CFIUS notification is publicly documented for this transaction. Under 31 CFR Part 800 and FIRRMA, minority venture positions typically fall below mandatory-filing thresholds unless the foreign investor obtains:

• Board representation
• Access to material non-public technical information
• Involvement in substantive decision-making

Crusoe has not disclosed whether Mubadala Capital’s co-lead position carries board rights or observer status.

Structural Reading

1. Investment-committee separation within Mubadala. MGX and Mubadala Capital both traceable to Mubadala Investment Company have converged on the same Abilene asset within nine months. Whether this is coordinated strategy or parallel independent conclusions is the core analytical question.
2. Series C → D → E escalation. Mubadala Capital’s $350M-round participation (2022), $600M-round participation (2024), and $1.375B-round co-lead (2025) show sustained capital scaling as Crusoe became the physical anchor of the Stargate federal-AI-infrastructure story.
3. Timing vs. Stargate announcement. Nine months after MGX commits $7B at the tenant level, Mubadala Capital commits (undisclosed amount) at the developer level. The combined UAE sovereign-adjacent exposure to a single U.S. AI-infrastructure site is now the largest documented by any foreign state on record.

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