2. No person shall, without the prior approval of the commissioner, acting directly or indirectly or through or in concert with one or more persons:
a. Obtain or exercise control of a capital stock savings bank;
b. Offer to acquire beneficial ownership or control of any voting shares of a capital stock savings bank if, after the acquisition, the person would beneficially own or control more than 25% of the then-outstanding voting shares of the capital stock savings bank; or
c. Acquire beneficial ownership or control of any voting shares of a capital stock savings bank, if, after the acquisition, the person would beneficially own or control more than 25% of the then-outstanding voting shares of the capital stock savings bank.