Key Takeaways
- MARA Holdings sold 15,133 BTC for ~$1.1B to repurchase $1B in convertible debt
- The company abandoned its HODL-only policy and is pivoting hard into AI infrastructure
- A 1 GW partnership with Starwood Digital puts MARA on a different path than MicroStrategy
- Across the sector, Bitcoin miners are selling production and raising debt to fund AI pivots
A recent report filed with the Securities and Exchange Commission (SEC) shows that between March 4th and March 25th, 2026, the company sold 15,133 Bitcoin for approximately $1.1 billion. This money was used to buy back $1 billion worth of its own convertible notes – a type of debt that matures in 2030 and 2031. By repurchasing these notes at a lower price, the company expects to save around $88.1 million and reduce its total convertible debt by 30%.
The recent sale wasn’t unexpected. In early March, MARA changed its financial rules to permit selling Bitcoin, moving away from its previous strategy of simply holding onto mined assets. This change followed a difficult fourth quarter of 2025, where the company reported a $1.7 billion loss, largely due to a $1.5 billion decrease in the value of its digital assets.
Despite selling some of its Bitcoin holdings, MARA still had over 38,689 BTC at the start of 2026, making it one of the biggest public Bitcoin holders globally. Opinions on Wall Street are divided: Clear Street lowered its price prediction to $9, while most analysts recommend holding or moderately buying the stock, with a typical price target between $18.50 and $20. The stock price fell 8.4% shortly after the company announced its new strategy, but it has since started to move independently of Bitcoin’s price, possibly because investors are becoming more interested in the company’s AI infrastructure plans.
The Starwood Deal And a Pivot to AI Infrastructure
The best indication of Marathon Digital’s future direction is its partnership with Starwood Capital Group, specifically through Starwood Digital Ventures. This collaboration involves transforming Marathon’s energy-intensive mining facilities into powerful data centers designed to support artificial intelligence tasks.
The initial goal is to build enough infrastructure to support 1 gigawatt of computing power, with plans to expand beyond 2.5 gigawatts in the future. These facilities will be able to switch between powering Bitcoin mining and artificial intelligence tasks, depending on which is more profitable. MARA will provide the existing power infrastructure and connections, while Starwood will manage the investment, building, and finding customers for the space. MARA also has the option to own up to half of the project, which could provide a new source of income beyond Bitcoin mining.
As a researcher following Marathon Digital, I’ve been observing their recent moves closely. Their significant 64% ownership in Exaion is particularly interesting, as it allows MARA to expand into providing infrastructure-as-a-service and edge inference solutions, specifically targeting industrial clients. This positions them to offer more than just digital asset services and really build out their capabilities in that space.
The Rest of the Sector Is Moving the Same Direction
MARA isn’t the only crypto mining company expanding beyond Bitcoin. Many in the industry are now investing in AI infrastructure instead.
In March 2026, Core Scientific sold all of its Bitcoin holdings—2,537 BTC—and then borrowed $500 million from Morgan Stanley. The loan will be used to build data centers for artificial intelligence. The company is rapidly expanding its services for CoreWeave, and experts predict that high-performance computing and AI will account for about 71% of its revenue by the end of the year.
IREN, previously known as Iris Energy, has largely stopped focusing on Bitcoin and is now planning a major expansion into artificial intelligence. They aim to raise $3.6 billion and expect to generate $3.4 billion in revenue each year by 2026. Currently, they have over 23,000 NVIDIA GPUs in operation and have already signed an AI agreement with Microsoft.
HIVE Digital Technologies is growing in two key areas: high-performance computing and cryptocurrency mining. They’ve recently secured $30 million in contracts to provide AI cloud services and are increasing their use of renewable energy sources in Paraguay, Canada, and Sweden.
TeraWulf is leading the way in shifting away from Bitcoin mining. They’ve secured over $12.8 billion in contracts with AI companies, and experts predict they may completely stop Bitcoin mining by the end of 2026. This would allow them to dedicate their 2.8 gigawatts of power to meet the growing demand from the AI industry.
CleanSpark used nearly all the Bitcoin it mined in February to invest in artificial intelligence and a new data center in Texas. Riot Platforms reported a significant $663 million loss and is facing pressure from an investor to speed up its planned $1.6 billion investment in AI data centers. Meanwhile, Bitfarms has reorganized its infrastructure business, now called Keel Infrastructure, with plans to fully focus on AI and high-performance computing by 2027.
Why Miners Are Struggling
Looking at the financial side of things explains why some Bitcoin miners are changing strategies. Currently, it costs some miners around $87,000 to mine a single Bitcoin, but Bitcoin is only selling for about $69,000. This means they’re losing money on each Bitcoin mined. The recent Bitcoin halving has squeezed profits, and the income miners receive for their computing power has dropped so much that large-scale mining is becoming financially unsustainable.
We’re seeing a major change in how Bitcoin operates. Traditionally, miners held onto the Bitcoin they mined, but now they’re increasingly selling it immediately to cover their costs. Companies like MicroStrategy are stepping in to buy this supply. This shift, combined with the expensive infrastructure needed for AI – things like powerful computer clusters and specialized cooling systems – is leading to fewer, larger companies dominating the market. The recent $9 billion offer from CoreWeave to buy Core Scientific is a sign of this trend, and we can expect to see more mergers and acquisitions like it.
What’s Next
MARA’s biggest challenge right now is putting its plans into action. While reducing debt is relatively simple, transforming its mining facilities into competitive AI data centers and attracting businesses to use them will be difficult. The partnership with Starwood offers funding and knowledge, but building the AI infrastructure will take time, and it won’t start generating revenue immediately.
The company still owns a significant amount of Bitcoin – over 48,000 – meaning its success is still linked to how well cryptocurrencies perform. However, it’s shifting its focus away from being solely a Bitcoin company. Its investment in AI will only be successful if it can quickly secure enough customers to use its 1 gigawatt of computing power, and if businesses continue to need that much computing power for the foreseeable future.
This article is for informational purposes only and shouldn’t be considered financial, investment, or trading advice. Coindoo.com doesn’t support or suggest any particular investment or cryptocurrency. Always do your own research and talk to a qualified financial advisor before investing.
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2026-03-26 18:01