According to Arkham, the wallet that received $2.19 billion of bitcoin from Mt. Gox has just launched a test transaction, interacting with wallet bc1q26. This wallet bc1q26 is likely to be Bitgo, the fifth and final trading platform to work with Mt. Gox trustees to distribute funds to Mt. Gox creditors. It may repay creditors. The Mt. Gox wallet address still has $1.95 billion worth of bitcoins left.