unclaimed money from ATT stock

Help!!!! I am totally clueless! I recently found out that my great grandfather who has been deceast since the 1970s has unclaimed funds from several ATT Stocks. How do I go about claiming them? Can I even claim them without the actual stock certificate??? I don?t have the certificates I only found the information on the stocks/ shares he owned on the unclaimed funds website.
Reply to
Ashleigh1119

BeanSmart website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.