This excerpt taken from the CGEN 20-F filed Mar 18, 2009.
(a) Any written notice or other document may be served by the Company upon any shareholder personally or by sending it by mail addressed to such shareholder at such shareholders address as described in the Share Register or such other address as such shareholder may have designated in writing for the receipt of notices and other documents. Any written notice or other document may be served by any shareholder upon the Company by tendering the same in person to the Secretary or the Chief Executive Officer of the Company at the principal office of the Company or by sending it by prepaid registered mail (airmail if posted outside Israel) to the Company at its Registered Address. Any such notice or other document shall be deemed to have been served two (2) business days after it has been posted (five (5) business days if sent to a place not located on the same continent as the place from where it was posted), or when actually received by the addressee if sooner than two (2) days or five (5) days, as the case may be, after it has been posted, or when actually tendered in person, to such shareholder (or to the Secretary or the Chief Executive Officer); provided, however, that notice may be sent by e-mail, facsimile or other electronic means and confirmed by registered mail as aforesaid, and such notice shall be deemed to have been given twenty-four (24) hours after such e-mail, facsimile or other electronic communication has been sent or when actually received by such shareholder (or by the Company), whichever is earlier. If a notice is, in fact, received by the addressee, it shall be deemed to have been duly served, when received, notwithstanding that it was defectively addressed or failed, in some respect, to comply with the provisions of this Article 74(a).
(b) All notices to be given to the shareholders shall, with respect to any share to which persons are jointly entitled, be given to whichever of such persons is named first in the Share Register, and any notice so given shall be sufficient notice to the holders of such share.
(c) If requested by the Company, each shareholder shall provide the Company with the shareholders full street and mailing address, as well, if available, with facsimile number and email address. Any shareholder whose address is not described in the Share Register, and who shall not have designated in writing an address for the receipt of notices, shall not be entitled to receive any notice from the Company.