ChainCatcher reports that according to on-chain analyst Ai Yi (@Ai 9684xtpa), a related address of the "2015 ICO 76,000 ETH whale" has deposited 2,500 ETH to a CEX in the past 14 hours, approximately $4.59 million, with a cost as low as $0.31.
This associated address still holds 13,500 ETH, which may be sold off in the near future.