A stock certificate is preprinted on the front with the name and address of the company issuing the stock. If you have a stock certificate, there are only a couple of instances that require you to fill it out--when you are selling or transferring your shares or you need to change to your personal information.
Step 1
Enter the shareholder's name and address on the back of the certificate. If it is held jointly, include each shareholder's information.
Step 2
List the tax ID number of each shareholder. For individuals, this is a Social Security number. For a business, it is the employee identification number issued by the Internal Revenue Service.
Step 3
Sign the back of the stock certificate after filling out the changes.