T: Leadership change

ITEM 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. On October 14, 2026, Lori M. Lee, Global Marketing Officer & Senior Executive Vice President – International of AT&T Inc., announced she was retiring from the company effective December 31, 2026. On October 13, 2026, AT&T Inc. announced that it entered into an agreement to sell its wireless business in Mexico. In connection with this divestiture and other reorganizational efforts by the company, Ms. Lee’s role will be eliminated. Item 9.01 Financial Statements and Exhibits. The following exhibits are filed as part of this report: (d) Exhibits 104 Cover Page Interactive Data File (embedded within the Inline XBRL document) Signature Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. AT&T INC. Date: October 16, 2026 By: /s/ Stacey Maris Stacey Maris Senior Vice President, Secretary and Chief Privacy Officer