According to @OnchainLens, a dormant BTC whale withdrew 171 BTC worth approximately $15.79 million from Binance to external address 34qy7UDjMHxWdZAh9FMcZQ5gNXM3JYuygN on Dec 3, 2025, based on Nansen on-chain data (source: Onchain Lens on X; Nansen data). This transaction constitutes an exchange outflow of 171 BTC from Binance to the cited external address, immediately reducing BTC held on-exchange by that amount at the time of movement (source: Onchain Lens on X; Nansen data).