| Net sales | 4,295.83a | 4,022.67a | 4,564.74a |
| Costs of goods sold | -2,630.21a | -2,657.24a | -3,042.73a |
| Gross profit | 1,665.63a | 1,365.43a | 1,522a |
| Operating expenses | — | — | — |
| Selling and service | -526.45a | -448.2a | -496.26a |
| Research and development | -219.6a | -173.44a | -159.77a |
| General and administrative | -285.1a | -253.4a | -196.32a |
| Amortization of intangibles | -97.74a | -104.19a | -103.32a |
| Total operating expenses | -1,128.88a | -979.23a | -955.67a |
| Income from operations | 536.74a | 386.2a | 566.33a |
| Other (expense) income | — | — | — |
| Interest expense | -89.71a | -97.63a | -54.83a |
| Investment income | 7.61a | 4.27a | 1.13a |
| Change in fair value of investment | -38.01a | | |
| Loss on extinguishment of debt | -4.86a | | -3.74a |
| Other, net | -2.33a | -2.54a | -0.42a |
| Total other expense, net | -127.3a | -95.9a | -57.86a |
| Income before provision for income taxes | 409.44a | 290.3a | 508.47a |
| Provision for income taxes | -92.46a | -73.18a | -99.6a |
| Net income | 316.98a | 217.12a | 408.87a |
| Net income attributable to noncontrolling interests | 0.66a | 2.51a | 9.37a |
| Net income attributable to Generac Holdings Inc. | 316.32a | 214.61a | 399.5a |