Acquisitions meeting the criteria of section 7A(a), and not otherwise exempted by section 7A(c) or § 802.21 or any other of these rules, are subject to the requirements of the act even though:

(a) Earlier acquisitions of assets or voting securities may have been subject to the requirements of the act;

(b) The acquiring person's holdings initially may have met or exceeded a notification threshold before the effective date of these rules; or

(c) The acquiring person's holdings initially may have met or exceeded a notification threshold by reason of increases in market values or events other than acquisitions.