A reputable real-time blockchain monitoring feed (Whale Alert on Telegram) directly reports a transfer of 1,800 BTC from a Coinbase-tagged address to an unknown wallet with an approximate USD value of $121 million, matching the statement precisely. No provided sources contradict this event; the others are either unrelated or only tangentially related. Minor residual uncertainty stems from possible address-tagging inaccuracies and the inherent approximation of USD valuation at the time of transfer, but these do not materially undermine the core claim.