X0203 3 2010-02-10 0 0001474735 GENERAC HOLDINGS INC. GNRC 0001372939 CCMP Capital, LLC 245 PARK AVENUE NEW YORK NY 10167 0 0 1 0 0001372942 CCMP Capital Investors II, L.P. 245 PARK AVENUE NEW YORK NY 10167 0 0 1 0 0001373028 CCMP Capital Investors (Cayman) II, L.P. 245 PARK AVENUE NEW YORK NY 10167 0 0 1 0 0001372941 CCMP Capital Associates, L.P. 245 PARK AVENUE NEW YORK NY 10167 0 0 1 0 0001372940 CCMP Capital Associates GP, LLC 245 PARK AVENUE NEW YORK NY 10167 0 0 1 0 0001477277 CCMP Generac Co-Invest, L.P. 245 PARK AVENUE NEW YORK NY 10167 0 0 1 0 0001477867 CCMP Generac Co-Invest GP, LLC 245 PARK AVENUE NEW YORK NY 10167 0 0 1 0 0001482243 Brenneman Greg Dean 245 PARK AVENUE NEW YORK NY 10167 0 0 1 0 Common Stock, par value $0.01 per share 39907438 D Common Stock, par value $0.01 per share 24195367 D Common Stock, par value $0.01 per share 3225209 D Common Stock, par value $0.01 per share 12477487 D Common Stock, par value $0.01 per share 9375 I See footnote See Exhibit 99. The amount shown represents the beneficial ownership of shares of the Issuer's common stock owned by CCMP Capital Investors. The amount shown represents the beneficial ownership of shares of the Issuer's common stock owned by CCMP Cayman. The amount shown represents the beneficial ownership of shares of the Issuer's common stock owned by Generac Co-Invest. The amount shown represents the beneficial ownership of shares of the Issuer's common stock owned by Stephen Murray, Timothy Walsh and Stephen McKenna, which were issued to each of them in their capacity as directors of the Issuer, because CCMP Capital may be deemed to have voting and dispositive power over such shares as a result of the contractual arrangements among the CCMP Capital Funds, CCMP Capital Associates and CCMP Capital, which provide that these 9,375 shares are to be held for the benefit of the CCMP Funds and these shares are to be voted or disposed of at the direction of CCMP Capital. Exhibit List Exhibit 99 CCMP Capital, LLC /s/ Timothy Walsh, Managing Director 2010-02-10 CCMP Capital Investors II, L.P. By: CCMP Capital Associates, L.P., its general partner By: CCMP Capital Associates GP, LLC /s/ Timothy Walsh, Managing Director 2010-02-10 CCMP Capital Investors (Cayman) II, L.P. By: CCMP Capital Associates, L.P., its general partner By: CCMP Capital Associates GP, LLC, its general partner /s/ Timothy Walsh, Managing Director 2010-02-10 CCMP Capital Associates, L.P., By: CCMP Capital Associates GP, LLC, its general partner /s/ Timothy Walsh, Managing Director 2010-02-10 CCMP Capital Associates GP, LLC /s/ Timothy Walsh, Managing Director 2010-02-10 CCMP Generac Co-Invest, L.P. By: CCMP Generac Co-Invest GP, LLC, its general partner /s/ Timothy Walsh, Managing Director 2010-02-10 CCMP Generac Co-Invest GP, LLC /s/ Timothy Walsh, Managing Director 2010-02-10 /s/ Greg D. Brenneman 2010-02-10