As usual, it't not entirely clear, but I found this blurb that he is required to report any transactions that are opposite transactions from any that he took during the previous 6 months, so if I read it correctly, if he bought shares 2 months ago, he must report any sales even after leaving the company. Of course, I could be completely wrong.
(b) A transaction(s) following the cessation of director or officer status shall be subject to section 16 of the Act only if:
(1) Executed within a period of less than six months of an opposite transaction subject to section 16(b) of the Act that occurred while that person was a director or officer; and
(2) Not otherwise exempted from section 16(b) of the Act pursuant to the provisions of this chapter.