Bitcoin mining company Marathon Digital Holdings (MARA) has expanded its Bitcoin reserves again, purchasing an additional 400 Bitcoin (BTC), valued at approximately $46.3 million.
According to on-chain monitoring firm Lookonchain, the purchase was made just a few hours ago through the institutional trading platform FalconX. This new purchase brings Marathon’s total holdings to 52,850 BTC, currently valued at approximately $6.12 billion.
The company is the second-largest public holder of Bitcoin, according to data from BitcoinTreasuries. It trails behind MicroStrategy, led by Michael Saylor, which holds 640,031 BTC valued at roughly $77 billion.
Marathon Digital Holdings (NASDAQ: MARA) closed at $18.64 on October 10, down 7.75% for the day, as per Yahoo Finance. However, the stock rebounded in after-hours trading, rising 2.66% to $19.13.
A growing treasury
On October 3, Marathon Digital Holdings (MARA) reported that it had increased its Bitcoin holdings to 52,850 BTC, adding 373 BTC during September.
Marathon also mined 736 BTC in September, a 4.4% increase from August, while its share of total Bitcoin block rewards reached 5.2%. The company’s mining performance improved even as the global hashrate rose 9%, with its operational capacity reaching 60.4 EH/s, supported by full deployment at its Texas wind-powered facility.
In August 2025, Marathon Digital Holdings revealed its intention to buy a 64% interest in Exaion, a French firm specializing in artificial intelligence and high-performance computing, for $168 million.
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