My husband’s unvested shares were held by a transfer agent, where they remained once they vested, until we requested they be transferred to a broker. (Not that

My husband’s unvested shares were held by a transfer agent, where they remained once they vested, until we requested they be transferred to a broker. (Not that I’ve ever had a broker withhold taxes, but those would be capital gains anyway.) Taxes incurred upon vesting are income taxes. Even if it’s not cash in your pocket, Uncle Sam wants his cut!