HALLAL agrees to cooperate with, and assist, ALEXION to ensure a smooth transition of his work responsibilities. At any time following the Separation Date, HALLAL will provide such information as ALEXION may reasonably request with respect to any ALEXION-related transaction or other matter in which HALLAL was involved in any way while employed by ALEXION. HALLAL further agrees to assist and cooperate with ALEXION in connection with the defense, prosecution, government investigation, or internal investigation of any claim or matter that may be made against, concerning, or by ALEXION. Such assistance and cooperation shall include timely, comprehensive, and truthful disclosure of all relevant facts known to HALLAL, including through in-person interview(s) with ALEXION’s internal Legal Department or outside counsel for ALEXION. HALLAL shall be entitled to reimbursement for all properly documented expenses incurred in connection with rendering services under this Section, including, but not limited to, reimbursement for all reasonable travel, lodging, and meal expenses.