Net Loss Per Share
Basic and diluted net loss per share attributable to common shareholders of Biohaven was calculated as follows:
 Year Ended December 31,
 202420232022
Numerator:   
Net loss
$(846,422)$(408,168)$(570,279)
Denominator:
Weighted average common shares outstanding—basic and diluted
91,234,337 71,200,527 44,741,316 
Net loss per share—basic and diluted
$(9.28)$(5.73)$(12.75)
The Company's potential dilutive securities include share options which have been excluded from the computation of diluted net loss per share as the effect would be to reduce the net loss per share. Therefore, the weighted average number of common shares outstanding used to calculate both basic and diluted net loss per share attributable to common shareholders of the Company is the same. The Company excluded the following potential common shares, presented based on amounts outstanding at each period end, from the computation of diluted net loss per share attributable to common shareholders for the periods indicated because including them would have had an anti-dilutive effect:
 Year Ended December 31,
 202420232022
Options to purchase common shares12,781,084 11,379,429 8,959,215 
Warrants to purchase common shares294,195 — — 
Restricted Share Units277,221 — — 
13,352,500 11,379,429 8,959,215 

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.