Computershare Trust Company, N.A.
c/o IBM
P.O. Box 43078
Providence, RI 02940-3078
(888) IBM-6700 (United States, Canada and Puerto Rico)
(781) 575-2727 (all other areas)
Stock transfer forms are provided by Computershare at https://www-us.computershare.com/Investor/#Help/PrintableForms (link resides outside IBM)
When sending IBM stock certificates to Computershare, you should send them unendorsed (with a brief letter of instruction) via registered or certified mail, with return receipt requested, or some other form of traceable mail, and properly insured.
Visit the transfer agent's Web site at www.computershare.com (link resides outside IBM).
IBM Stockholder Relations
New Orchard Road
Armonk, NY 10504
(914) 499-7777
Visit the IBM Investor Relations website at www.ibm.com/investor
IBM Stockholder Relations contact form: www.ibm.com/systems/campaignmail/mail/us-en/investor