X0306 4 2013-08-01 0 0001474735 GENERAC HOLDINGS INC. GNRC 0001108220 WALSH TIMOTHY J. C/O CCMP CAPITAL ADVISORS, LLC 245 PARK AVENUE, 16TH FLOOR NEW YORK NY 10167 1 0 1 0 Common Stock, par value $0.01 per share 2013-08-01 4 S 0 7023063 42.28 D 0 I Footnote Common Stock, par value $0.01 per share 5905 D See Exhibit 99.1 Under the terms of the contractual arrangements among the CCMP Capital Funds, CCMP Capital Associates and CCMP Capital (collectively, the "CCMP Fund Entities"), Mr. Walsh is deemed to hold these shares for the benefit of the CCMP Fund Entities and must vote or dispose of such shares upon the direction of CCMP Capital. CCMP Capital is, therefore, deemed to indirectly beneficially own such shares. Mr. Walsh disclaims beneficial ownership of the securities to the extent it exceeds his pecuniary interest therein and the inclusion of the shares in this report shall not be deemed to be an admission of beneficial ownership of the reported shares for the purposes of Section 16 or otherwise. Exhibit 99.1 /s/ Timothy J. Walsh 2013-08-05