The rumors are they holding 635,000 BTC
It is not a rumor that Grayscale has over 600k BTC in its possession, as well as a bunch of altcoins that have allegedly already been dumped or are doing so recently. Anyway, who still believes in some irrelevant Twitter account specializing in FUD, who invites his followers to his Telegram channel where he is obviously trying to sell them some super cool projects?