Bankrupt firm Alameda Research,  the trading arm of the FTX exchange, has been receiving persistent transfers from Panama-based cryptocurrency derivatives exchange Deribit since December 10. Deribit had begun sending 2,000 ETH to Alameda in a series of five even transactions a month after FTX and Alameda filed for bankruptcy.

The latest of the series of transactions occurred today, bringing the total amount to 10,000 ETH valued at $12M against prevailing rates, data from Etherscan reveals. The transfers were made from the address labeled Deribit 9, showing affiliation to the derivatives exchange. The five transactions occurred in 11 days, leaving the Alameda Research address with an Ether balance of 12,812 ETH ($15.5M) as of press time.

The development was recently highlighted by blockchain security platform PeckShield through its official Twitter handle. So far, it has raised several questions from the broader cryptocurrency community, especially considering Alameda Research and FTX’s ongoing bankruptcy proceedings and Deribit’s previous comments on its relationship with Alameda.