Interactive Brokers (IBKR) will prevent traders from selling newly purchased small-cap stocks if flagged under Rule 144, potentially for hours, until the compliance team verifies non-affiliate status.
"what's going to happen with interactive brokers is they're not going to allow you to sell the stock even if you just bought it they're not going to allow you to sell it until you confirm with their compliance team that you are not an affiliate of the company... that means you're holding a position for hours and you can't sell."
