Notwithstanding anything to the contrary, no stockholder shall transfer, whether by sale, gift or otherwise, any Shares acquired from any Award (including, without limitation, Shares acquired upon exercise of an Option) to any person or entity unless such transfer is approved by the Company prior to such transfer, which approval may be granted or withheld in the Company’s sole and absolute discretion. Any purported transfer effected in violation of this Section 13 shall be null and void and shall have no force or effect and the Company shall not be required (i) to transfer on its books any Shares that have been sold or otherwise transferred in violation of any of the provisions of the Plan or (ii) to treat as owner of such Shares or to accord the right to vote or pay dividends to any purchaser or other transferee to whom such Shares shall have been so transferred.