Earnings Per Share - Reconciliation of Numerator and Denominator of Basic and Diluted Earnings Per Share (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands

3 Months Ended

9 Months Ended

Feb. 28, 2026

Feb. 28, 2025

Feb. 28, 2026

Feb. 28, 2025

Numerator for earnings per share:

Net Income (Loss)

$ 51,364

$ 52,034

$ 440,176

$ 462,930

Less: Allocation of earnings and dividends to participating securities

(273)

(256)

(1,733)

(1,788)

Net income available to common shareholders - basic

51,091

51,778

438,443

461,142

Add: Undistributed earnings reallocated to unvested shareholders

Net income available to common shareholders - diluted

$ 51,091

$ 51,778

$ 438,447

$ 461,148

Denominator for basic and diluted earnings per share:

Basic weighted average common shares

127,045

127,536

127,156

127,628

Average diluted options and awards

462

618

551

687

Total shares for diluted earnings per share

^[1]

127,507

128,154

127,707

128,315

Earnings Per Share of Common Stock Attributable to RPM International Inc. Stockholders:

Basic Earnings Per Share of Common Stock

$ 0.4

$ 0.41

$ 3.45

$ 3.61

Method used to calculate basic earnings per share

Two-class

Diluted Earnings Per Share of Common Stock

$ 0.4

$ 3.43

$ 3.59

Method used to calculate diluted earnings per share

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 nine months ended February 28, 2026, approximately 460,000 and 420,000 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 nine months ended February 28, 2025, approximately 190,000 and 170,000 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.

RPM INTERNATIONAL INC/DE/ 10-Q