CoinVoice has recently learned that, according to Arkham monitoring, approximately 18 minutes ago, Grayscale transferred a total of 17,584 ETH, of which:

Grayscale's mini trust fund transferred 4,241 ETH to Coinbase Prime Deposit, worth 15.37 million USD; Grayscale transferred 13,343 ETH to Coinbase Prime hot wallet address, worth 48.36 million USD.[Original link]