NOTICE OF NEGOTIATED PRIVATE BOND SALE Public notice is hereby given by Independent School District of Boise City, Ada and Boise Counties, State of Idaho (the "District"), of negotiation for and private sale to Piper Sandler & Co. (the "Underwriter") of its General Obligation Refunding Bonds, Series 2026 (Sales Tax Guaranty Program) (the "Bonds") pursuant to a Bond Purchase Agreement between the District and the Underwriter ("Purchase Agreement") to be executed on the date of sale of the Bonds, and setting forth the final terms and provisions of the Bonds. The Bonds were authorized to be issued by the District's Board of Trustees pursuant to a Resolution adopted September 14, 2026 (the "Bond Resolution"). The sale of the Bonds, upon satisfying certain requirements contained in the Bond Resolution pursuant to Idaho Code Section 57-235, occurred on November 3, 2026. Additional information concerning the terms and provisions of the Bonds, the contents of the District's Preliminary Official Statement with respect to issuance of the Bonds, the security for payment of the Bonds, and other pertinent information relating to the Bonds is available for public inspection at the offices of the District: 8169 W. Victory Road, Boise, Idaho 83709. By order of the Board of Trustees of the District. Dated: November 5, 2026. INDEPENDENT SCHOOL DISTRICT OF BOISE CITY, ADA AND BOISE COUNTIES, STATE OF IDAHO IPL0387548 Nov 8 2026