It seems that an Ethereum ICO participant returned after 1.12 years to deposit 1,069 ETH (equivalent to $3.55 million) to Kraken at a price of $3,329 per ETH, as reported 8 hours ago.
The participant transferred the 1,069 ETH to the address 0x221930FB2AE2C25051E5A4DA5965C318f3D063D0 and then made the transfer to Kraken from this address.
Here is the address provided: 0xf4deb6B36676a3A3b74aFD32972481225cDACb34.