Cipher Mining (CIFR), a publicly listed Bitcoin mining company, announced its unaudited production and operations update for September 2025. The company mined approximately 251 BTC and sold 158 BTC during the month. By the end of September, Cipher Mining held a total of 1,500 BTC and had deployed 114,000 mining machines. The company plans to continue focusing on its high-performance computing (HPC) business as it fully implements its previous mining plans.