CP, we are not talking of John Dow calling the broker (another Joe Blow agent)... We are talking (in theory) of a very powerful Entity that may have quite a few million $ in stocks with that broker ...
Now, are you going to tell me that the Broker is NOT going to pay attention to his request?
I believe he will, INMEDIATELY and without making any note in any paper (no need to)...
Wouldnt you if you were the Broker?... and very likely he talked to the Super Boss of the Broker Office
Regarding how the supposed Entity would sell the stock? I see no problem in doing it the same there was no problem buying it