RYE, N.Y.--(BUSINESS WIRE)--GAMCO Investors, Inc., (NYSE:GBL) announced the appointment of Robert D. Leininger, CFA and Daniel M. Miller to the investment team of the Gabelli Equity Trust (the “Fund”) effective June 1, 2015. Messrs. Leininger and Miller join Mario J. Gabelli, who has been the portfolio manager of the Fund since its launch on August 21, 1986, and Kevin V. Dreyer and Christopher J. Marangi, who joined the portfolio management team on July 1, 2013. Commenting on the appointments,