EX-99.77Q1 OTHR EXHB 6 77q1a.txt Q771A 77Q1(a)(1) Articles of Amendment of American Century Mutual Funds, Inc., dated July 13, 2016 (filed electronically as Exhibit (a)(51) to Post-Effective Amendment No. 146 to the Registration Statement of the Registrant filed on September 12, 2016, File No. 2-14213 and incorporated herein by reference).