Earnings Per Share (Tables)

6 Months Ended

Nov. 30, 2025

Earnings Per Share [Abstract]

Reconciliation of Numerator and Denominator of Basic and Diluted Earnings Per Share

The following table sets forth the reconciliation of the numerator and denominator of basic and diluted earnings per share ("EPS") for the three- and six-month periods ended November 30, 2025 and 2024.

	Three Months Ended						Six Months Ended
	November 30,			November 30,			November 30,			November 30,
(In thousands, except per share amounts)	2025			2024			2025			2024
Numerator for earnings per share:
Net income attributable to RPM International Inc. stockholders	$	161,207		$	183,204		$	388,812		$	410,896
Less: Allocation of earnings and dividends to participating securities		(701	)		(739	)		(1,587	)		(1,615	)
Net income available to common shareholders - basic		160,506			182,465			387,225			409,281
Add: Undistributed earnings reallocated to unvested shareholders		1			3			5			7
Net income available to common shareholders - diluted	$	160,507		$	182,468		$	387,230		$	409,288
Denominator for basic and diluted earnings per share:
Basic weighted average common shares		127,129			127,658			127,206			127,675
Average diluted options and awards		520			686			593			717
Total shares for diluted earnings per share (1)		127,649			128,344			127,799			128,392
Earnings Per Share of Common Stock Attributable to
RPM International Inc. Stockholders:
Basic Earnings Per Share of Common Stock	$	1.26		$	1.43		$	3.04		$	3.21
Method used to calculate basic earnings per share	Two-class			Two-class			Two-class			Two-class
Diluted Earnings Per Share of Common Stock	$	1.26		$	1.42		$	3.03		$	3.19
Method used to calculate diluted earnings per share	Two-class			Two-class			Two-class			Two-class

(1) The dilutive effect of performance-based restricted stock units is included when they have met minimum performance thresholds. The dilutive effect of SARs includes all outstanding awards except awards that are considered antidilutive. SARs are antidilutive when the exercise price exceeds the average market price of the Company’s common shares during the periods presented. For the three and six months ended November 30, 2025, approximately 580,000 and 480,000 shares of stock, respectively, granted under stock-based compensation plans were excluded from the calculation of diluted EPS, as the effect would have been anti-dilutive. For the three and six months ended November 30, 2024, approximately 300,000 and 230,000 shares of stock, respectively, granted under stock-based compensation plans were excluded from the calculation of diluted EPS, as the effect would have been anti-dilutive.