According to BlockBeats, on September 4, according to Arkham monitoring, Ethereum co-founder Vitalik Buterin (address starting with 0x22) unlocked 1.268 million STRKs from the Starknet LockedTokenGrant contract at 13:15 today, equivalent to approximately US$470,000.
The address currently holds a total of 2.113 million STRK, equivalent to approximately US$780,000.