The claim is strongly supported by the primary source, Whale Alert's own transaction page titled 'Transaction | Whale Alert,' which explicitly lists a 1,994 BTC transfer worth about $152.38M between two unidentified wallets. The official social post 'x post 2046304037687959685' independently matches the amount, approximate USD value, and 'unknown wallets' description. The other fetched Whale Alert page titled 'Transaction | Whale Alert' concerns a different 4,296 BTC transaction, indicating the input bundle mixed multiple alerts rather than contradicting the specific 1,994 BTC claim.