American Stock Transfer is Microsoft's transfer agent. Investors interested in purchasing shares directly or registered
shareholders wanting to make changes to their account should contact American Stock Transfer. If you own shares through a
brokerage firm, you need to contact the brokerage firm directly to make any account changes.
(800) 285-7772 Option 1 (United States)
(425) 706-4400 Option 1 (International)
American Stock Transfer & Trust Company
P.O. Box 2362
New York, NY 10272-2362