share option 
noun
A benefit in the form of an option given by a company to an employee to buy a share in the company at a discount or at a stated fixed price.An income tax charge arises even if the share option is granted before the employment begins or after it ceases, if it is granted by reason of an individual's Irish employment....
- In other cases, an employee or director (a grantee) who is granted a share option becomes chargeable to tax in the tax year in which he exercises the option and not the tax year in which he receives it.
- The share price exceeded $15 on the day of execution and the share option was exercised, generating a further profit of almost $1,000.