Companies in the United States are staying private longer, and this trend has important implications for companies and their employees. Employees holding equity awards in private companies are restricted from monetizing an illiquid asset that they might need to support their living expenses....

In recent years, companies have begun to voluntarily disclose alternative measures of CEO compensation. These figures differ — sometimes significantly — from those reported in the summary compensation tables of the annual proxy. The motivation to report this information, however, is not...