Multiple sources in this run agree on the underlying factual claim that large bitcoin holders accumulated heavily last week, with the wording 'largest weekly accumulation since July 2025' appearing in x post 2046590484621971900, x post 2046873684246479299, and Bitcoin Whales Record Largest Weekly Accumulation Since July 2025. The BingX search result also explicitly says Bloomberg reported this. However, the Bloomberg primary article itself was not obtained, and the CoinDCX search snippet attributes the 45,000 BTC figure to Cex. IO instead of Bloomberg. So the accumulation claim is well corroborated, but Bloomberg-specific attribution is not fully confirmed from a primary Bloomberg source in the gathered evidence.