The provisions of AS 10.06.358 do not apply to a dividend declared by a regulated investment company, as defined in the United States Internal Revenue Code, to the extent that the dividend is necessary to maintain the status of the corporation as a regulated investment company under the provisions of that code. The provisions of this chapter do not apply to a purchase or redemption of shares redeemable at the option of the holder by a registered open-end investment company under the United States Investment Company Act of 1940, so long as the right of redemption remains unsuspended under the provisions of that statute and the articles and bylaws of the corporation.