AMC Entertainment Holdings Inc (AMC)

[Nebuchadnezzar]

this might help

https://www.quora.com/In-the-stock-market-why-are-large-block-stock-orders-often-placed-at-4-00PM

"It has to do with reporting the transaction.

Block trades are firm to firm, so it trades off the tape and at a different price.

This is why you’ll see them reported after the cash close."