Marathon Digital Holdings (MARA) stock rises 1.7% in premarket trading after the company discloses mining 226.6 new bitcoins during May, increasing its total bitcoin holdings to 5,518 with a fair market value of ~$203.4M.Bitcoin production represents a 40% increase from April 2021.During the month of May, Marathon installed 5,571 new miners, increasing its active mining fleet to 17,655 miners, generating ~1.9 EH/s.An additional 1,911 S-19 Pro ASIC miners are currently in transit; expects fleet to total ~103,120 miners, generating ~10.37 EH/s at the end of Q1.As of June 1, 2021, cash on hand was ~$191.8M and total liquidity — cash and bitcoin holdings — was ~$395.1M.Bitcoin rises 3.3% in the last 24 hours to ~$37.3K.