I have seen a lot of such news, and large funds have profitably sold Bitcoin on exchanges at over $46,000.
https://cryptoslate.com/grayscale-transfers-200m-bitcoin-to-coinbase-prime-hinting-at-possible-etf-redemption-activity/"Grayscale transfers $200M Bitcoin to Coinbase Prime hinting at possible ETF redemption activity
Grayscale has begun moving Bitcoin out of its trust and sending it to Coinbase as of 2 p.m. GMT, Jan. 12. A total of 4,000 BTC (roughly $200M) has been sent as of press time, with all Bitcoin going to Coinbase Prime, one of the key participants in the series of Bitcoin ETFs launched yesterday.
Coinbase acts as the broker and trading counterparty for almost all ETF issuers, including Grayscale. Thus, it is likely that this transfer indicates outflows from the trust from sales yesterday. The last outflows before today were around 2 weeks again, where there were multiple transactions in and out of the Grayscale Bitcoin wallets."