A donation acknowledgment letter (sometimes called a donation receipt or thankyou letter) is an email or paper that recognizes a charitable contribution. This letter should acknowledge the gift of stock, such as the name and number of shares.What do you need to include in your donation acknowledgment letter? Your letter should acknowledge the gift of stock, including the ticker, the number of shares, and the date of the donation. You can upload a logo, mission statement, and message that you would like to include on the acknowledgement letter. When acknowledging these donations, include the name of the donor, the number of shares, the name of the security, and the date when the transfer was completed. Please enclose a letter including the designation of your gift. 2) Download and print out a stock power form, one for each separate security, if applicable.