Equity and option grants
Frameworks for sizing option grants, refresh grants, and equity compensation
Sizing option grants
This article presents a framework for valuing option grants and determining how many options to offer new hires and for refresh.
There’s also this post from Paul Graham that describes a model from the founder perspective on how to value your options.
Refresh and promotion grants
This article from Carta goes into detail about companies typically do refresh grants, and the different types of refresh grants: traditional and boxcar.