X0508 4 2026-02-25 0001474735 GENERAC HOLDINGS INC. GNRC 0001483004 Ragen York A. S45 W29290 HWY.59 C/O GENERAC HOLDINGS INC. WAUKESHA WI 53189 1 Chief Financial Officer 0 Common Stock 2026-02-25 4 M 0 24362 40.12 A 161543 D Common Stock 2026-02-25 4 S 0 1679 231.2040 D 159864 D Common Stock 2026-02-25 4 S 0 866 232.4232 D 158998 D Common Stock 2026-02-25 4 S 0 1500 233.3454 D 157498 D Common Stock 2026-02-25 4 S 0 924 234.5197 D 156574 D Common Stock 2026-02-25 4 S 0 6167 235.7903 D 150407 D Common Stock 2026-02-25 4 S 0 12324 236.5706 D 138083 D Common Stock 2026-02-25 4 S 0 902 237.2826 D 137182 D Stock Option (Right to Buy) 40.12 2026-02-25 4 M 0 24362 0 D 2027-03-01 Common Stock 24362 0 D Reflects the weighted average price of 1,679 shares of common stock of Generac Holdings Inc. sold by the reporting person in multiple transactions on February 25, 2026 with sale prices ranging from $230.87 to $231.82 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Reflects the weighted average price of 866 shares of common stock of Generac Holdings Inc. sold by the reporting person in multiple transactions on February 25, 2026 with sale prices ranging from $231.97 to $232.91 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Reflects the weighted average price of 1,500 shares of common stock of Generac Holdings Inc. sold by the reporting person in multiple transactions on February 25, 2026 with sale prices ranging from $233.00 to $233.69 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Reflects the weighted average price of 924 shares of common stock of Generac Holdings Inc. sold by the reporting person in multiple transactions on February 25, 2026 with sale prices ranging from $234.19 to $235.17 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Reflects the weighted average price of 6,167 shares of common stock of Generac Holdings Inc. sold by the reporting person in multiple transactions on February 25, 2026 with sale prices ranging from $235.19 to $236.18 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Reflects the weighted average price of 12,324 shares of common stock of Generac Holdings Inc. sold by the reporting person in multiple transactions on February 25, 2026 with sale prices ranging from $236.19 to $237.15 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Reflects the weighted average price of 902 shares of common stock of Generac Holdings Inc. sold by the reporting person in multiple transactions on February 25, 2026 with sale prices ranging from $237.19 to $237.83 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. This total reflects an additional 1 share inadvertently omitted from the reporting person's total reported on the Form 4 filed on March 5, 2024. Fully vested. /s/ Raj Kanuru, Attorney in Fact 2026-02-27