A total of 3,790 dormant Bitcoin were activated during the first half of September, according to Bitcoin News as cited by PANews. The coins came from wallets dating from 2010 to 2017. Among them was an address that had held 113 BTC since 2013 without movement; those coins are now worth about $8.8 million. The largest transfer involved 1,260 BTC moved on Sept. 6 from a wallet dating to 2016. Weekend activity accounted for 62% of dormant-Bitcoin spending during the month.