EXHIBIT 99.13 Third Amendment to the 1983 Performance Stock Plan THIRD AMENDMENT TO FIRST INTERSTATE 1983 PERFORMANCE STOCK PLAN First Interstate Bancorp adopted the First Interstate Bancorp 1988 Performance Stock Plan (the "Plan") effective November 15, 1982 as approved by the shareholders on April 29, 1988 at the Annual Shareholder's meeting. In order to have a consistent definition of Change in Control among First Interstate Bancorp's various plans, this Amendment is being adopted. This Amendment is effective June 20, 1994. 1. The definition of Change in Control in Section 11 Additional Definitions is amended by revising it to read as follows: "Change in Control" of the Company means and shall be deemed to have occurred if and when any one of the following five events occurs: (i) any "person" (as such term is used in Section 13(d) of the Securities Exchange Act of 1934 (the "Exchange Act")) becomes a beneficial owner, directly or indirectly, of securities of the Company representing 20% or more of the combined voting power of the Company's then outstanding securities; (ii) individuals who were members of the Board of Directors of the Company immediately prior to a meeting of the stockholders of the Company involving a contest for the election of Directors do not constitute a majority of the Board of Directors following such election; (iii) the stockholders of the Company approve the dissolution or liquidation of the Company; (iv) the stockholders of the Company approve an agreement to merge or consolidate, or otherwise reorganize, with or into one or more entities which are not Subsidiaries, as a result of which less than 50% of the outstanding voting securities of the surviving or resulting entity are, or are to be, owned by former stockholders of the Company (excluding from the term "former stockholders" a stockholder who is, or as a result of the transaction in question becomes, an "affiliate", as that term is used in the Exchange Act and the Rules promulgated thereunder, of any party to such merger, consolidation or reorganization); or (v) the stockholders of the Company approve the sale of substantially all of the Company's business and/or assets to a person or entity which is not a Subsidiary. Executed at Los Angeles, California this 20th day of July, 1994. FIRST INTERSTATE BANCORP By: /SIGNED/ ----------------------- Executive Vice President By: /SIGNED/ ------------------------- Secretary