All requests or invitations for tenders or advertisements making a tender offer or requesting or inviting tenders of the voting securities of the insurer or the controlling person made by or on behalf of the person, and a copy of the agreement to exchange or otherwise acquire securities or to merge with or otherwise to acquire control of the insurer, shall be filed with the commissioner and sent to the insurer as a part of the statement and shall contain the information contained in the statement as the commissioner may by rule or regulation prescribe. Copies of any additional material soliciting or requesting the tender offers subsequent to the initial solicitation or request, and copies of any amendment to the agreement, shall contain the information as the commissioner may by rule or regulation prescribe as necessary or appropriate in the public interest or for the protection of policyholders or shareholders, and shall be filed with the commissioner and sent to the insurer not later than the time copies of the material are first published or sent or given to security holders or the amendment is entered into.
Ca. Ins. Code § 1215.2