Options as ISO_NSO means the grant is a mix of ISO and NSO options. ISO options are incentive stock options and have tax benefits. However, ISOs are limited to $100k in exercise in a calendar year and can only be given to US based employees. If employees exercise more than $100k in options, they are treated as NSO (non-incentive stock options).
Read this article to learn more about the difference between ISO and NSO grants.
This article is provided only for informational proposes. Pulley does not provide tax, accounting, or legal advice. We recommend consulting with your tax and legal advisor regarding the implications of exercising your options.