Each Stockholder agrees not to, and to cause each of its Affiliates not to, commence, join in, facilitate, assist or encourage, and agrees to take all actions necessary to opt out of any class in any class action with respect to, any Claim against Mavericks, Rockets or any of their respective directors or officers related to the Merger Agreement, the Merger or the Stock Issuance, including any Claim (a) challenging the validity of, or seeking to enjoin the operation of, any provision of this Agreement or the Merger Agreement or (b) alleging a breach of any fiduciary duty of any Person in connection with the evaluation, negotiation or entry into the Merger Agreement.