Employee agrees that in the event that (i) Employee breaches any term of Sections 3 or 4 hereof or this Section 5, or (ii) Employee challenges the validity of all or any part of this Section 5, and all or any part of this Section 5 is found invalid or unenforceable for any reason whatsoever by a court of competent jurisdiction or an arbitrator in a proceeding between Employee and a Company Entity, in addition to any other remedies at law or in equity the Company may have available to it, the Company shall not be obligated to make any of the payments and may cease to make such payments or to provide for any of the benefits specified in Section 2 hereof, and shall be entitled to recoup from Employee any and all of the value of the payments and benefits provided pursuant to Section 2 hereof that have vested or been paid pursuant to that Section.