“Insolvency” or “insolvent” means one or more of the following:
1. When a savings bank cannot meet its deposit liabilities as they become due in the regular course of business.
2. When the actual cash market value of the assets of a savings bank is insufficient to pay its liabilities to depositors and other creditors.
3. When the reserves of a savings bank fall under the amount required by this chapter, and the savings bank fails to make good such reserve within 30 days after being required to do so by the Commissioner.
4. When the undivided profits and surplus of a savings bank are inadequate to cover losses of the savings bank and the stockholders’ or members’ equity in the savings bank has been reduced below the requirements of law.