The aforesaid quorum shares referred to in the foregoing article shall be set aside to guarantee the good conduct of the member, and shall be deposited within thirty days from the date of his election or appointment with one of the banks. The member shall not dispose of these shares in any manner whatsoever throughout his term until the balance sheet of the last financial year in which he was holding office is approved.

If the quorum shares are not deposited within the period specified in the foregoing paragraph, his membership shall be null. Membership shall also be null if such shares are reduced for any reason whatsoever during his term and are not completed within thirty days from the date of the reduction occurring.