X0306 4 2012-10-05 0 0001474735 GENERAC HOLDINGS INC. GNRC 0001482990 Tabat Dawn GENERAC HOLDINGS INC. P.O. BOX 8 WAUKESHA WI 53189 0 1 0 0 Chief Operating Officer Common Stock, par value $0.01 per share 2012-10-05 4 S 0 20000 26.00 D 1135483 D Common Stock, par value $0.01 per share 2012-10-05 4 M 0 8500 7.00 A 1143983 D Common Stock, par value $0.01 per share 2012-10-05 4 F 0 4345 25.82 D 1139638 D Common Stock, par value $0.01 per share 2012-10-08 4 S 0 4155 25.42 D 1135483 D Stock Option 7.00 2012-10-05 4 M 0 8500 0 A 2020-02-10 Common Stock 8500 209490 D The price reported is the average weighted price. The shares were sold pursuant to the terms of a trading plan, adopted March 14, 2012, under Rule 10b5-1 by Ms. Tabat. The shares were sold in multiple transactions at prices ranging from $25.77 to $26.16, inclusive. The reporting person undertakes to provide the SEC, the issuer and any security holder full information regarding the number of shares and the prices at which the shares were sold. The option provides for vesting in five equal annual installments beginning on February 10, 2011, subject in each case to Ms. Tabat's continued employment with Generac Holdings Inc. through the vesting date. The price reported is the average weighted price. The shares were sold pursuant to the terms of a trading plan, adopted March 14, 2012, under Rule 10b5-1 by Ms. Tabat. The shares were sold in multiple transactions at prices ranging from $25.41 to $25.44, inclusive. The reporting person undertakes to provide the SEC, the issuer and any security holder full information regarding the number of shares and the prices at which the shares were sold. /S/York Ragen, Attorney-in-fact 2012-10-09