Net Loss Per Share Attributable to Cooper-Standard Holdings Inc.
Basic net loss per share attributable to Cooper-Standard Holdings Inc. was computed by dividing net loss attributable to Cooper-Standard Holdings Inc. by the weighted average number of shares of common stock outstanding during the period. Diluted net loss per share attributable to Cooper-Standard Holdings Inc. was computed using the treasury stock method by dividing diluted net loss available to Cooper-Standard Holdings Inc. by the weighted average number of shares of common stock outstanding, including the potential dilutive effect of common stock equivalents and non-participating share-based awards, using the average share price during the period.
Information used to compute basic and diluted net loss per share attributable to Cooper-Standard Holdings Inc. for the years ended December 31, 2025, 2024 and 2023 was as follows:
 Year Ended December 31,
 202520242023
Net loss attributable to Cooper-Standard Holdings Inc. common stockholders$(4,165)$(78,746)$(201,985)
Basic weighted average shares of common stock outstanding17,862,433 17,564,012 17,355,392 
Dilutive effect of common stock equivalents and non-participating share-based awards— — — 
Diluted weighted average shares of common stock outstanding17,862,433 17,564,012 17,355,392 
Basic net loss per share attributable to Cooper-Standard Holdings Inc.$(0.23)$(4.48)$(11.64)
Diluted net loss per share attributable to Cooper-Standard Holdings Inc.$(0.23)$(4.48)$(11.64)
Approximately 528,000, 254,000, and 91,000 securities were excluded from the calculation of diluted net loss per share for the years ended December 31, 2025, 2024 and 2023, respectively, because the inclusion of such securities in the calculation would have been anti-dilutive.

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.