Download Massachusetts Stock Purchase Agreement template, modify and send for signing using BoloForms Signature. A share escrow agreement is a contract that allows a third party to hold money or anothe financial asset on behalf of someone else.How do I fill this out? To fill out this Escrow Agreement form, ensure you have all necessary information about the property transaction. Farrell, in his official capacity as Clerk of the. United States District Court for the District of Massachusetts (herein "Escrow Agent"). Clause 3—Purchase Price: Please check this section CAREFULLY. The assets or funds that are held in escrow remain there and are not released until all of the obligations outlined in the agreement are fulfilled. A stock escrow agreement is a legal contract used to protect the interests of both a company and its shareholders.