Founder of Hex, PulseChain, and PulseX suspected of transferring ETH worth $323 millions

According to a report by Jinse Finance, on-chain analyst Yu Jin has monitored that a group of addresses suspected to belong to Richard Heart, the founder of projects such as Hex, PulseChain, and PulseX, moved 81,000 ETH (worth $323 million) in the past 5 hours. Is this merely a change of storage wallets or preparation for a sale? In March 2023, this group of addresses purchased 132,000 ETH on-chain with 499 million DAI, at an average price of $3,770 per ETH. Except for 9,500 ETH that were transferred through Tornado Cash in the past six months, the rest have been held until now.