(1) An in-state savings bank holding company may do any of the following:
(a) Acquire direct or indirect ownership or control of voting shares of one or more regional institutions or regional holding companies or acquire an interest in, or some or all of the assets of, one or more regional institutions or regional holding companies.
(b) Merge with one or more regional holding companies.
(2) An in-state savings bank holding company proposing any action under sub.
(1) shall file an application with the division for approval of the transaction and shall provide the division with copies of all applications and materials filed with a federal agency or agency of another state in seeking approval of the transaction.