Note 8 - Stockholders' (Deficit) Equity (Tables)

9 Months Ended

Sep. 30, 2026

Notes Tables

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

		*Three Months Ended September 30,*								*Nine Months Ended September 30,*
		*2026*				*2025*				*2026*				*2025*
Numerator used in basic and diluted EPS:
Net income		$	219.2			$	225.5			$	682.0			$	711.1
Denominator:
Weighted average number of common shares used in basic EPS			129,131,949				139,509,985				131,638,192				139,874,142
Effect of dilutive shares:
Potential common shares issuable from stock options and stock-based awards			94,619				431,950				128,367				532,868
Weighted average number of common shares and dilutive potential common shares used in diluted EPS			129,226,568				139,941,935				131,766,559				140,407,010

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

		*September 30, 2026*				*December 31, 2025*
Foreign currency translation adjustment, net of tax		$	144.4			$	172.8
Pension and postretirement adjustment, net of tax			(63.4	)			(65.8	)
Accumulated other comprehensive income		$	81.0			$	107.0

Comprehensive Income (Loss) [Table Text Block]

		*Before Tax*				*Tax (Expense) Benefit*				*After Tax*
For the Three Months Ended September 30, 2026
Foreign currency translation adjustment attributable to Verisk		$	(1.7	)		$	—			$	(1.7	)
Foreign currency translation adjustment attributable to noncontrolling interests			—				—				—
Foreign currency translation adjustment			(1.7	)			—				(1.7	)
Pension and postretirement adjustment before reclassifications			1.8				(0.4	)			1.4
Amortization of net actuarial loss and prior service benefit reclassified from accumulated other comprehensive income ⁽¹⁾			(1.0	)			0.2				(0.8	)
Pension and postretirement adjustment			0.8				(0.2	)			0.6
Total other comprehensive loss		$	(0.9	)		$	(0.2	)		$	(1.1	)
For the Three Months Ended September 30, 2025
Foreign currency translation adjustment attributable to Verisk		$	(14.8	)		$	—			$	(14.8	)
Foreign currency translation adjustment attributable to noncontrolling interests			(0.1	)			—				(0.1	)
Foreign currency translation adjustment			(14.9	)			—				(14.9	)
Pension and postretirement adjustment before reclassifications			2.4				(0.5	)			1.9
Amortization of net actuarial loss and prior service benefit reclassified from accumulated other comprehensive income ⁽¹⁾			(1.2	)			0.3				(0.9	)
Pension and postretirement adjustment			1.2				(0.2	)			1.0
Total other comprehensive loss		$	(13.7	)		$	(0.2	)		$	(13.9	)

		*Before Tax*				*Tax (Expense) Benefit*				*After Tax*
For the Nine Months Ended September 30, 2026
Foreign currency translation adjustment attributable to Verisk		$	(28.4	)		$	—			$	(28.4	)
Foreign currency translation adjustment attributable to noncontrolling interests			0.1				—				0.1
Foreign currency translation adjustment			(28.3	)			—				(28.3	)
Pension and postretirement adjustment before reclassifications			6.5				(1.6	)			4.9
Amortization of net actuarial loss and prior service benefit reclassified from accumulated other comprehensive income⁽¹⁾			(3.3	)			0.8				(2.5	)
Pension and postretirement adjustment			3.2				(0.8	)			2.4
Total other comprehensive loss		$	(25.1	)		$	(0.8	)		$	(25.9	)
For the Nine Months Ended September 30, 2025
Foreign currency translation adjustment attributable to Verisk		$	84.1			$	—			$	84.1
Foreign currency translation adjustment attributable to noncontrolling interests			0.3				—				0.3
Foreign currency translation adjustment			84.4				—				84.4
Pension and postretirement adjustment before reclassifications			6.9				(1.6	)			5.3
Amortization of net actuarial loss and prior service benefit reclassified from accumulated other comprehensive income ⁽¹⁾			(3.4	)			0.9				(2.5	)
Pension and postretirement adjustment			3.5				(0.7	)			2.8
Total other comprehensive income		$	87.9			$	(0.7	)		$	87.2