AT&T Inc. Form 8-K Filing

On March 12, 2026, AT&T Inc. completed the sale of CAD$1,250,000,000 of 4.500% Global Notes due 2036 and CAD$1,000,000,000 of 5.250% Global Notes due 2056. The sale was conducted under an Underwriting Agreement dated March 5, 2026, with CIBC World Markets Inc., RBC Dominion Securities Inc., Scotia Capital Inc., and TD Securities Inc. acting as representatives for the underwriters. These notes were issued under an existing indenture from May 15, 2013, and were registered with the SEC under a Form S-3 registration statement. This filing includes the Underwriting Agreement, forms of the notes, and a legal opinion regarding the notes' validity as exhibits. AT&T is filing this report to incorporate these items into its existing registration statement.