MARA closed its controlling investment in EDF’s Exaion

MARA Holdings completed its acquisition of a 64% interest in Exaion on February 20, 2026, giving the public Bitcoin-mining company control of a French operator of high-performance-computing data centers and secure cloud and artificial-intelligence infrastructure.

EDF, Exaion’s former controlling shareholder, announced that the conditions attached to the transaction—including applicable regulatory approvals—had been satisfied. EDF remained both a minority shareholder and a customer. The closing converted an agreement announced on August 11, 2025, into an operating investment and extended MARA’s business beyond the specialized computers and power contracts used to mine bitcoin.

That distinction mattered. Exaion was not presented as another Bitcoin-mining site. It supplied infrastructure intended for enterprise and public-sector computing, where data security, workload location and access to high-performance systems can be decisive. MARA was therefore purchasing a platform, personnel and customer relationships in an adjacent computing market rather than simply adding mining capacity.

The transaction’s structure

The August 2025 agreement contemplated approximately $168 million in upfront cash for the 64% interest. It also gave MARA an opportunity to invest approximately another $127 million for an additional 11%, subject to specified milestones. Those figures described the announced transaction terms available by February 20, not a contemporaneous valuation of Exaion or a guarantee that the additional investment would occur.

The completed structure also added French investor NJJ Capital. EDF said NJJ would acquire a 10% minority interest in MARA France, the acquisition vehicle. Bloomberg reported on February 20 that French government clearance was conditioned on participation by a French investor. The public records available that day did not disclose the complete approval order or every condition imposed during the foreign-investment review.

Governance remained shared despite MARA’s controlling economic stake. Exaion’s board was to include three MARA appointees, three EDF Pulse Ventures appointees, one NJJ appointee and Exaion’s chief executive and co-founder. MARA chief executive Fred Thiel and NJJ founder Xavier Niel were among the announced directors. That arrangement preserved substantial French and EDF participation while giving MARA majority ownership.

Why it mattered to the mining sector

The acquisition illustrated how a large Bitcoin miner could try to reposition itself as a broader energy-and-compute infrastructure company. Bitcoin mining converts electricity and specialized hardware into proof-of-work revenue, leaving operators exposed to bitcoin prices, network difficulty, equipment efficiency and power costs. Secure cloud and AI workloads have different hardware, customer and service requirements, but they can offer another commercial use for expertise in power procurement and data-center operations.

That strategic interpretation should not be mistaken for a demonstrated financial result. Neither the February 20 EDF announcement nor the original agreement disclosed Exaion’s revenue, earnings, utilization or customer concentration. The closing established ownership and strategic intent; it did not prove that MARA could integrate the company successfully or earn higher returns than it could from mining.

The deal also placed a U.S. Bitcoin-mining company inside a European infrastructure business associated with a major state-backed electricity producer. EDF’s continued ownership, customer relationship and board presence made the transaction more than a conventional exit. It created a cross-border partnership shaped by energy access, digital-sovereignty concerns and regulatory oversight.

Later filing context

A MARA quarterly filing issued in May 2026 later reported total cash consideration of $174.5 million, or €148 million, including working-capital adjustments. It also disclosed that the acquisition occurred through two contemporaneous steps and produced preliminary goodwill of $92.5 million. Those accounting details clarify the completed transaction but were not available in the February 20 event-day record.