Bitcoin mining company MARA Holdings transferred 1,000 BTC, valued at approximately $80.66 million, to custodial service provider BitGo about nine hours ago, according to blockchain analytics platform Lookonchain. This marks another installment in MARA's ongoing pattern of moving large Bitcoin holdings to institutional custody platforms. The transfer represents a significant outflow from the miner's self-custodied reserves and may signal preparation for selling or collateral deployment.