The ETH veteran waited for 10 days without seeing an increase in $ETH and chose to cut losses in the past hour and a half:
He sold 13,456.1 ETH purchased on 12/20 at a price of $3,420 for 46.05 million USDT, incurring a loss of $1.02 million.

He spent 50.31 million USDT to buy this 14,369.9 ETH at an average price of $3,501 during the drop on 12/20, but unfortunately, the ETH price did not rebound quickly and remained below his cost line.
So the veteran chose to cut losses an hour and a half ago. Currently, he has sold most of the ETH he purchased on 12/20, with only 912 ETH ($3.11M) remaining unsold at address 0x2c8...d86.

Addresses:
0x6c2a355929ee1262305e385ad49b84fe5f5a4777
0x2c89a2ee92b9870f55989b4132a58c0e85222d86