N.H. Rev. Stat. Ann. § 383-B:9-903

The combination of depository banks or the acquisition of an investor-owned depository bank by a New Hampshire bank holding company is required to be approved by a majority of the owners of the shares having a right to vote of an investor-owned depository bank, a majority of the corporators of a mutual savings bank, a majority of association members of a savings association, or a higher percentage if required by their respective organizational documents, as applicable.