The mega whales, consisting of only 104 members, today own 57.35% of the ETH supply, a new all-time high.The holdings of the sharks and whales sit at an all-time low of 33.46%.The centralization of supply is not positive for Ethereum, as it runs on a Proof-of-Stake mechanism.Some mega whales may be staking pools and platforms holding coins on behalf of many investors.