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MARA has put a sizeable number on the changing economics of Bitcoin mining. In its third-quarter shareholder letter, the company said it sold 13,597 BTC after September 30 for approximately $1.1 billion, at an average selling price of about $81,039. It used $750 million of the proceeds to repay Bitcoin-collateralized loans, releasing 17,477 BTC that had been pledged as security.
TL;DR: MARA disclosed $1.1 billion of post-quarter Bitcoin sales and repayment of $750 million in BTC-backed borrowing. The miner is increasingly monetizing its coin reserves to support AI infrastructure and other capital priorities. This marks a meaningful departure from its earlier strategy of holding mined Bitcoin.
The balance-sheet logic behind the sale
At the end of September, MARA reported 34,012 BTC in total holdings, including a sizeable portion lent out or pledged as collateral. The newly disclosed disposals followed quarter-end, so that September balance should not be presented as the company’s current holding without adjustment. MARA said the repayments reduced the proportion of Bitcoin lent or pledged to less than 5% of its remaining holdings, versus roughly 57% at the earlier reporting date.
Management describes the move as a way to gain financial flexibility while still using Bitcoin strategically. Borrowing against the coins had helped finance the proposed acquisition of the Long Ridge natural-gas power business. The subsequent sale allowed MARA to clear the borrowing before the transaction closed, instead of leaving its financing exposed to future collateral calls if Bitcoin weakened.
That is a trade-off, not a free improvement. Selling reserve assets reduces direct exposure to any subsequent Bitcoin recovery. Keeping more BTC would preserve that upside but could require accepting additional liquidity and borrowing risk. The appropriate decision depends on the company’s priorities and its ability to earn a return on the infrastructure being funded.
Mining and AI now compete for the same capital
MARA’s third-quarter revenue fell about 35% from a year earlier to $164.2 million. Its mining operations still produce coins, but the company is now emphasizing power assets and potential data-center customers alongside hashrate. Long Ridge includes generating capacity and land that could support a data-center campus. Development plans are not the same as signed, revenue-producing leases.
The move also fits a wider sector pattern. NewsBTC recently reported how Riot sold more than 20,000 BTC while pursuing AI-related data-center agreements. The contrast with Strive’s rapid Bitcoin accumulation is useful: public companies can use the same underlying asset in radically different corporate strategies.
What investors should read past the headline
MARA also disclosed authorization for up to $500 million in share repurchases, while its reported quarterly profit included substantial accounting effects linked to digital assets. Those items should not be mistaken for recurring mining cash flow. Nor does an authorization guarantee that every dollar of the program will be spent.
The follow-up questions are whether Long Ridge closes, whether planned data-center leases are signed, how much Bitcoin remains unrestricted, and whether new AI revenue eventually justifies the capital committed. The BTC sale is confirmed. The return on the assets it may finance is still an execution story.
Written by the News Desk and edited by Samuel Rae.
