No bank or trust company shall hold more than 10 percent of the capital stock of any other bank or trust company without the approval of the Commissioner. In determining whether to grant such approval, the Commissioner shall consider the convenience and needs of the public of this State. Any acquisition by a bank or trust company of more than 10 percent of the capital stock of any other bank or trust company that was approved by the Commissioner before January 1, 1996, shall be deemed to have been approved by the Commissioner without the survival of any conditions required by former subsection (b) of this section.