 GREENWICH, Conn.--BUSINESS WIRE--GAMCO Investors, Inc. GAMCO NYSE: GBL announced today that its Chairman and CEO, Mr. Mario J. Gabelli, has elected to waive all of his compensation that he would otherwise have been entitled to for the period from July 1, 2021 to November 30, 2021. About GAMCO Investors, Inc. GAMCO is known for its research-driven approach to equity investing. GAMCO conducts its investment advisory business principally through two subsidiaries: GAMCO Asset Management Inc 