EARNINGS PER SHARE (EPS)
Basic EPS is calculated by dividing Net earnings attributable to Allegion plc by the weighted-average number of ordinary shares outstanding for the applicable period. Diluted EPS is calculated after adjusting the denominator of the basic EPS calculation for the effect of all potentially dilutive ordinary shares, which in the Company’s case, includes shares issuable under its share-based compensation plans.
The following table summarizes the weighted-average number of ordinary shares outstanding for basic and diluted earnings per share calculations:
In millions202520242023
Weighted-average number of basic shares86.1 87.2 87.9 
Shares issuable under share-based compensation plans0.5 0.4 0.4 
Weighted-average number of diluted shares86.6 87.6 88.3 
As of December 31, 2025 and 2024, 0.2 million and 0.1 million stock options were excluded from the computation of weighted-average diluted shares outstanding, respectively, because the effect of including these shares would have been anti-dilutive.

Historical Timeline

Fiscal YearFiled
2025Feb 17, 2026Showing above
2024Feb 18, 2025
2023Feb 20, 2024
2022Feb 22, 2023
2021Feb 15, 2022
2020Feb 16, 2021
2019Feb 18, 2020
2018Feb 19, 2019
2017Feb 20, 2018
2016Feb 17, 2017
2015Feb 26, 2016

About Earnings Per Share Disclosures

The earnings per share disclosure breaks down the calculation from net income to both basic and diluted EPS, revealing the full impact of a company's capital structure on per-share economics. The reconciliation between basic and diluted share counts exposes how many stock options, RSUs, convertible securities, and warrants are potentially dilutive to existing shareholders.

Key signals: a widening gap between basic and diluted shares indicates growing dilution from equity compensation or convertible instruments. Anti-dilutive securities excluded from the diluted calculation deserve attention — they represent latent dilution that will materialize if the stock price rises. Watch for the effect of share buybacks on per-share metrics: EPS growth driven primarily by repurchases rather than income growth signals weakening fundamentals. Compare year-over-year changes in the diluted share count against equity compensation expense to assess whether management is effectively managing dilution.