(a) The administrator may not sell or otherwise liquidate a security until 3 years after the administrator receives the security and gives the apparent owner notice under Section 15-503 that the administrator holds the security unless the administrator determines it would be in the best interests of the owner for the sale to occur prior to the expiration of the 3-year period after the administrator receives the security and gives the apparent owner notice under Section 15-503. The administrator shall by administrative rule provide examples of situations where it would be in the best interests of the owner for the sale to occur prior to the expiration of the 3-year period.
     (b) The administrator may not sell a security listed on an established stock exchange for less than the price prevailing on the exchange at the time of sale. The administrator may sell a security not listed on an established exchange by any commercially reasonable method.