Romney: Did he leave Bain Capital in 1999 or later?

So the issue is this: Mitt Romney has said he left Bain Capital in February 1999. Now, SEC documents show him to have stayed on as CEO of Bain for approximately three more years.

This matters because Romney has said all the things that happened (like outsourcing jobs and bankrupting companies) after 1999 when he said he wasn't with the company weren't his responsibility. But now, maybe they were since he is shown on company documents showing he was still CEO.

What it comes down to is: did Romney lie on SEC documents to protect his own investments and money? Or is he lying to the US public now?

Things that make you go "hmm..."