Riot Sells 10,599 Bitcoin in Q3 as BTC Holdings Plunge 79%

Riot Platforms sold 10,599 Bitcoin in the third quarter of 2026. That cut its treasury from 11,380 BTC at the end of June to just 2,418 BTC by September 30. Riot is the second-largest publicly listed miner, and it has now sold 20,264 BTC this year for about $1.48 billion. Most of that cash is going into AI data centers, not back into its coin reserve. Riot spent years building one of the largest Bitcoin stacks of any miner, so this is a sharp break from its old playbook.