14. SHARES AND PREFERRED SHARES
Ordinary Shares
We calculate basic earnings per share based upon the weighted average number of shares outstanding. We calculate diluted earnings per share based upon the weighted average number of shares outstanding plus the dilutive effect of share equivalents calculated using the treasury stock method. Income from continuing operations is used as the benchmark to determine whether share equivalents are dilutive or anti-dilutive. The following is a summary of shares and share equivalents outstanding used in the calculations of basic and diluted earnings per share:
Years ended March 31,202520242023
Denominator (shares in thousands):
Weighted average shares outstanding—basic98,575 98,787 99,706 
Dilutive effect of share equivalents494 572 540 
Weighted average shares outstanding and share equivalents—diluted99,069 99,359 100,246 
Options to purchase the following number of shares were outstanding but excluded from the computation of diluted earnings per share because the combined exercise prices, unamortized fair values, and assumed tax benefits upon exercise were greater than the average market price for the shares during the periods, so including these options would be anti-dilutive:
Years ended March 31,202520242023
Number of ordinary share options (shares in thousands)
671 606 578 
Additional Authorized Shares
The Company has an additional authorized share capital of 50,000,000 preferred shares of $0.001 par value each, plus 25,000 deferred ordinary shares of €1.00 par value each, in order to satisfy minimum statutory capital requirements for all Irish public limited companies.

Historical Timeline

Fiscal YearFiled
2025May 29, 2025Showing above
2024May 29, 2024
2023May 26, 2023
2022May 31, 2022
2021May 28, 2021
2020May 29, 2020
2019May 30, 2019

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.