Transactions in this State involving bankers’ blanket bonds or directors’ and officers’ liability insurance issued by a captive insurance company, formed exclusively for the purpose of providing directors’ and officers’ liability and bankers’ blanket bond insurance to a bank or bank holding company, as such terms are defined in Section 2 of “The Illinois Bank Holding Company Act of 1957”, as amended, if the aggregate annual premiums for each bank or bank holding company for insurance on all of its property and liability risks total at least $25,000, and such insurance is procured by a full-time employee acting as an insurance manager or buyer or through the services of a regularly and continuously retained qualified insurance consultant.