Material Agreement, Financial Obligation (Form 8-K)

Item 1.01Entry into a Material Definitive Agreement.

On June 17, 2026, Graybar Electric Company, Inc. (the "Company") amended its agreement with PGIM, Inc., (collectively, "Prudential") (the "Prudential Shelf Agreement"). The amendment, among other things, extends the issuance period to August 2, 2029. The other material terms of the MetLife Shelf Agreement remain unchanged.

The description of the amendment to the Prudential Shelf Agreement in this Form 8-K does not purport to be complete and is qualified in its entirety by the full text of the amendment, which will be filed as an exhibit to the Company's Quarterly Report on Form 10-Q for the quarter ending June 30, 2026.

Item 2.03Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.

The disclosure set forth above under Item 1.01 is hereby incorporated by reference into this Item 2.03.

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