Business Segment and Geographic Information (Tables)

The following table sets forth our segment information for revenue, measures of segment profit or loss, and significant expenses:



	Three Months Ended June 30, 2025				Six Months Ended June 30, 2025
(In millions)	2025		2024		2025		2024
Revenue	$	1,157.1	$	1,004.3	$	2,193.1	$	1,925.3
Less:
Cost of sales (1)	468.3		377.6		915.3		736.7
Payroll related expenses	222.0		189.5		442.2		389.3
Stock-based compensation expense	41.3		40.6		72.3		75.9
Marketing expense	78.8		86.4		149.2		147.9
Travel related expenses	14.3		16.1		33.9		37.1
Supply expenses and clinical trials	14.4		17.0		28.1		32.7
Consulting & professional fees	35.1		57.2		67.8		115.2
Equipment, office & facility expenses	22.5		20.9		44.0		43.1
IT software and data	36.0		31.3		71.1		63.4
Depreciation and amortization	9.3		9.4		18.5		21.1
Other segment items (2)	2.5		0.3		4.4		3.8
Operating income	212.6		158.0		346.3		259.1
Other income, net	28.5		29.8		49.1		61.2
Income tax expense	61.3		44.3		110.2		30.4
Net income	$	179.8	$	143.5	$	285.2	$	289.9

(1) Includes amounts stated in other significant expense captions.
(2) Other segment items are primarily composed of impairment of assets and bad debt expense.



	Three Months Ended June 30,				Six Months Ended June 30,
(In millions)	2025		2024		2025		2024
Other segment disclosures
Depreciation and amortization (1)	$	63.0	$	52.1	$	123.0	$	104.6
Expenditures for long-lived assets	$	94.1	$	66.1	$	181.1	$	123.0
Significant noncash items other than depreciation and amortization expense:
Deferred income taxes	$	8.9	$	14.7	$	14.7	$	56.5

(1) Includes depreciation and amortization recorded in both cost of sales and operating expenses.