v3.26.1
Stock-based compensation (Tables)
6 Months Ended
Jun. 30, 2026
Share-Based Payment Arrangement [Abstract]  
Schedule of components of stock-based compensation expense
The following table presents the components of stock-based compensation expense:
(in millions)
Classification
Three months ended June 30,
Six months ended June 30,
2026
2025
2026
2025
Stock optionsEquity$1.9 $2.4 $3.4 $4.8 
RSUsEquity13.0 13.1 20.3 23.4 
OtherBoth0.5 — 0.3 (0.3)
Total$15.4 $15.5 $24.0 $27.9 
Award classification:
Equity$15.2 $15.8 $24.2 $28.8 
Liability0.2 (0.3)(0.2)(0.9)
Schedule of information about outstanding stock options
The following table presents information about outstanding stock options:
(options and intrinsic value in millions)
Number of optionsWeighted average exercise price per optionAggregate intrinsic valueWeighted average remaining term
Balance at December 31, 2025
11.7 $21.18 
Granted6.7 10.69 
Exercised— — 
Forfeited(4.8)17.14 
Balance at June 30, 2026
13.6 $17.33 $1.0 5.9 years
Expected to vest6.2 11.53 1.0 9.5 years
Vested7.4 22.16 — 2.9 years
Schedule of information about unvested RSUs
The following table presents information about unvested RSUs:
(awards in millions)
Number of awardsWeighted average grant date fair value per award
Balance at December 31, 2025
6.7 $17.88 
Granted5.7 9.13 
Vested(1.9)18.18 
Forfeited(1.4)14.70 
Balance at June 30, 2026
9.1 $11.90