This excerpt taken from the LUX 20-F filed Jun 28, 2006.
Terms and Conditions of Options.
(a) Each Participant, and each other person described in Section 11, shall agree to such restrictions and conditions and other terms in connection with the exercise of an Option, including restrictions and conditions on the disposition of the ADSs acquired upon the exercise thereof, as
the Board may deem appropriate and as are set forth in the applicable Option Agreement or in the Plan.
(b) The obligation of the Company to sell and deliver Ordinary Shares or ADSs under the Plan shall be subject to all applicable laws, regulations, rules and approvals. Neither a Participant, nor any other person described in Section 11, shall have any rights as a shareholder with respect to any Ordinary Shares or ADSs covered by an Option granted to, or exercised by, him until the date of registration of Ordinary Shares in the name of the Participant. No adjustment, other than pursuant to Section 10 below, shall be made for dividends or other rights for which the record date is prior to the date indicated above.