Waiver of certain claims

With respect to any bank which closes after May 25, 1938 , the Corporation shall waive, in favor only of any person against whom stockholders’ individual liability may be asserted, any claim on account of such liability in excess of the liability, if any, to the bank or its creditors, for the amount unpaid upon such stock in such bank; but any such waiver shall be effected in such manner and on such terms and conditions as will not increase recoveries or dividends on account of claims to which the Corporation is not subrogated.