The first transaction was to transfer 0.55 Ether (about $130 at the time of transaction) which ended up paying over 2.5 million dollars in transaction fee.
Etherscan link to see the public transaction details: https://etherscan.io/tx/0xca8f8c315c8b6c48cee0675677b786d1babe726773829a588efa500b71cbdb65
The second transaction that recorded the exact same transaction fee of 10,668.73185 Ether happened when sending 350 Ether (which is approximately $83000)
Etherscan link to see the public transaction details: https://etherscan.io/tx/0xc215b9356db58ce05412439f49a842f8a3abe6c1792ff8f2c3ee425c3501023c
How could the same insane transaction fee happen two times?