Certain of the amounts in the above tables may not total due to rounding of individual amounts.

Total share-based compensation expense related to the Company’s stock options, restricted stock units, stock grant awards and employee stock purchase plan is included below.

ON SEMICONDUCTOR CORPORATION RECONCILIATION OF GAAP VERSUS NON-GAAP DISCLOSURES (Continued) (in millions, except per share and percentage data)
	Quarters Ended												Nine Months Ended
	September 27, 2019				June 28, 2019				September 28, 2018				September 27, 2019				September 28, 2018
Cost of revenue	$		2.3		$		3.5		$		1.7		$		7.7		$		5.1
Research and development			3.4				5.4				3.4				12.4				10.6
Selling and marketing			2.7				4.6				3.3				11.1				10.5
General and administrative			6.3				13.8				9.5				30.5				33.2
Total share-based compensation expense	$		14.7		$		27.3		$		17.9		$		61.7		$		59.4

NON-GAAP MEASURES