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And MARA isn’t alone. Core Scientific recently sold 2,174 BTC, which had accumulated since December 2024. Other miners are also liquidating holdings to strengthen balance sheets or fund AI infrastructure expansion.

Some miners operate more cheaply. Highly efficient operations (new hardware + low-cost power) can mine Bitcoin for ~$45K per BTC. But profitability depends heavily on: • Mining hardware efficiency • Electricity cost • Power Usage Effectiveness (PUE) • Location and

Mining isn’t cheap. Based on MARA’s latest filings, the estimated average mining cost is ~$70,027 per BTC. That estimate comes from: • $31.3 cost per PH/s per day • 50.4 EH/s operational hash rate • ~23.3 BTC mined per day