So it appears the mailing date is no later than to

So it appears the mailing date is no later than today so the effective date is of the Charter Amendment is around June 18.

Definition of 'SEC Form PRE 14C'

A filing with the Securities and Exchange Commission (SEC) that must be filed by a registrant needing to file a preliminary information statement related to a subject other than a merger, contested solicitation or special meeting. SEC Form PRE 14C provides security holders, who are entitled to vote on issues for which the company is not soliciting proxies, with information required by Schedule 14A. The form also provides information about the interest of certain persons in favor or in opposition to matters to be acted upon and proposals by security holders. The form is required to state that proxies are not solicited.


Investopedia explains 'SEC Form PRE 14C'

Form PRE 14C is required under Section 14(c) of the Securities Exchange Act of 1934. This form must be filed with the SEC 10 days before definitive information statements are distributed to shareholders and helps the SEC protect shareholders' rights by ensuring that they receive key information, clearly presented.

http://www.investopedia.com/terms/s/sec-form-pre-14c.asp