Six Bitcoin wallets last active between 2011 and 2014 transferred a combined 553.59 BTC, worth about $40 million, between Aug. 16 and Aug. 26, according to Galaxy Research tracking data. One wallet had been inactive for more than 15 years. Five wallets sent the coins to addresses without known exchange links, while the sixth transferred 40 BTC to Boerse Stuttgart Digital, a German crypto custody and trading provider. Two wallets are linked to a New York lawsuit in which pseudonymous plaintiff Noah Doe seeks control of Bitcoin held across 39,069 dormant addresses under the state's lost-property laws. Blockchain records cannot establish whether the transfers were sales, wallet changes, custody movements or internal reorganizations. Galaxy Research said the amount of dormant Bitcoin moved onchain in the second quarter fell to its lowest level since the third quarter of 2022. Galaxy defines dormant coins as Bitcoin that has remained unchanged for at least one year. Galaxy research head Alex Thorn said none of the whale clients he had spoken with cited quantum-computing risk as a reason to sell, although some institutional investors had cited it when avoiding Bitcoin purchases. Separately, about 210,000 BTC moved from long-term-holder wallets within a week after a vulnerability was disclosed in certain Coldcard hardware wallets.