Are trading blackout windows enforced in any way other than threat of dismissal? I don't think there's any external repercussions to trading during an applicable blackout, and trading on NPMI is illegal regardless of whether it is done in or out of a window.
Usually the broker that handles RSUs for the company automatically does this. They’ll prevent you from doing such trades. You could still technically use a different broker and buy/sell but that’s probably blatant insider trading.
It is only insider trading if you are basing your trades on insider information. If your only reason for selling is “I just got laid off and need the cash” then you should be fine
