T: Other company developments

Item 8.01 Other Events. On August 17, 2026, AT&T Inc. (“AT&T”) closed its sale of (i) €1,200,000,000 aggregate principal amount of its Floating Rate Global Notes due 2028 (the “Euro Notes”) pursuant to an Underwriting Agreement, dated August 7, 2026 (the “Euro Underwriting Agreement”), between AT&T and Deutsche Bank AG, London Branch, as the Underwriter, and (ii) $1,100,000,000 aggregate principal amount of its Floating Rate Global Notes due 2028 (the “USD Notes” and, together with the Euro Notes, the “Notes”) pursuant to an Underwriting Agreement, dated August 10, 2026 (the “USD Underwriting Agreement” and, together with the Euro Underwriting Agreement, the “Underwriting Agreements”), between AT&T and BNP Paribas Securities Corp., as the Underwriter. The Notes were issued pursuant to that certain Indenture, dated as of May 15, 2013, between AT&T and The Bank of New York Mellon Trust Company, N.A., as Trustee. The Notes have been registered under the Securities Act of 1933, as amended (the “Act”), pursuant to a Registration Statement on Form S-3 (No. 333-285413) previously filed with the Securities and Exchange Commission under the Act, as supplemented by (i) a prospectus supplement dated August 7, 2026 relating to the Euro Notes filed by AT&T on August 11, 2026 and (ii) a prospectus supplement dated August 10, 2026 relating to the USD Notes filed by AT&T on August 12, 2026. Copies of the Underwriting Agreements, the forms of Notes and the opinions of the Assistant Vice President – Senior Legal Counsel and Assistant Secretary of AT&T as to the validity of the Notes are filed as exhibits hereto and incorporated herein by reference. AT&T is filing this Current Report on Form 8-K so as to file with the Securities and Exchange Commission certain items that are to be incorpo