I hope you don't get fired for this. If you have the private key to the wallet address then you will able to control where or when to send it or exchange it, but when you just did send it to an address that you don't possess the keys. Then you are in big trouble.
That is if he has not been fired yet looking at the time he posted this and now. That is a huge amount of money and he was really dumb to fall for such a thing sending such an amount in bitcoin to a supervisor that he possibly cannot trace. However, what I do not understand is that how did they converse ? Was it via email, phone call or SMS ?
If it was phone call, then he is really screwed but one way or the other, I believe the supervisor should have at least sent the bitcoin wallet address via email or something, and if he did not use an official number, then he is even more screwed !