Largest Grayscale unlocking is today. Second largest comes the day after tomorrow. A few more days of this relentless ball grating, guys. We're not all titanium trained Bawbs, but I'm sure we can all manage. Chin up!
As far as I know this is related to the internal, i.e. secondary Grayscale market. Grayscale is selling to the spot market only up to 2% each month for the fees.