How to Repurchase Restricted Stock
To repurchase restricted stock, head to the grant's profile page. From the Cap Table tab on the left panel, click Plans and Equity Awards from the top.
Scroll to the bottom for the Restricted Stocks section. Here, click the Cert number of the particular grant you want to repurchase.
Click the Exercise Repurchase button from the top.
Here, enter the amount of stock you want to repurchase along with the date and cost.