The address likely belongs to an organization reserving ETH, which 7 hours ago continued to accumulate 15,846 ETH ($55.34 million) and deposited them into staking.
This organization has been accumulating ETH through the platform mentioned below for institutional transactions. Since August 1, they have accumulated a total of 41,452 ETH ($148 million) at an average price of around $3,575.
All the accumulated ETH has been deposited into PoS staking through Figmen.
This address may belong to SharpLink, but exact confirmation will be available when SharpLink releases the next announcement regarding the amount reserved #ETH .