Tex. Business Organizations Code § 21.907

(a) At the shareholder meeting, the quorum and voting requirements applicable to the approval of the ratification of a defective corporate act under Section 21.905 are the same as the quorum and voting requirements applicable at the time of the approval by the shareholders of the ratification for the type of ratified defective corporate act proposed to be approved, except as provided by this section.

(b) If the presence or approval of a larger number or portion of shares or of any class or series of shares or of specified shareholders would have been required for a quorum to be present or to approve the defective corporate act, as applicable, by the corporation's governing documents, any plan or agreement to which the corporation was a party, or any provision of the corporate statute, each as in effect at the time of the defective corporate act, then the presence or approval of the larger number or portion of shares or of the class or series of shares or of such specified shareholders shall be required for a quorum to be present or to approve the ratification of the defective corporate act, as applicable, except that the presence or approval of shares of any class or series of which no shares are then outstanding, or of any person that is no longer a shareholder, is not required.

(c) The approval by the shareholders of the ratification of the election of a director requires the affirmative vote of the majority of shares present at the meeting and entitled to vote on the election of the director at the time of the approval, unless the governing documents of the corporation then in effect or in effect at the time of the defective election require or required a larger number or portion of shares or of any class or series of shares or of specified shareholders to elect the director, in which case the affirmative vote of the larger number or portion of shares or of the class or series of shares or of the specified shareholders is required to ratify the election of the director, except that the presence or approval of shares of any class or series of which no shares are then outstanding, or of any person that is no longer a shareholder, is not required.

(d) If a failure of authorization results from the failure to comply with Subchapter M, the approval of the ratification of the defective corporate act requires the vote set forth by Section 21.606(2), regardless of whether that vote would have otherwise been required.

(e) Putative shares on the record date for determining shareholders entitled to vote on any matter submitted to shareholders under Section 21.905 are not entitled to be counted for voting or quorum purposes in any vote to approve the ratification of any defective corporate act, regardless of any ratification that becomes effective after the record date.