0001140361-26-034200 Sample Contracts

BACKBLAZE, INC. AND U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Trustee INDENTURE Dated as of August 24, 2026 0.00% Convertible Senior Notes due 2031
Indenture • August 24th, 2026 • Backblaze, Inc. • Services-prepackaged software • New York

INDENTURE dated as of August 24, 2026 between BACKBLAZE, INC., a Delaware corporation, as issuer (the “Company,” as more fully set forth in Section 1.01) and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as trustee (the “Trustee,” as more fully set forth in Section 1.01).

FIFTH AMENDMENT TO CREDIT AGREEMENT
Credit Agreement • August 24th, 2026 • Backblaze, Inc. • Services-prepackaged software • New York

CREDIT AGREEMENT, dated as of June 4, 2025, among BACKBLAZE, INC., a Delaware corporation (the “Borrower”), the Guarantors from time to time party hereto, and CITIZENS BANK, N.A. (the “Lender”).

Insert Dealer Name] [Insert Dealer Address]
Call Option Transaction • August 24th, 2026 • Backblaze, Inc. • Services-prepackaged software

The purpose of this letter agreement (this “Confirmation”) is to confirm the terms and conditions of the call option transaction entered into between [Dealer] (“Dealer”) and Backblaze, Inc. (“Counterparty”) as of the Trade Date specified below (the “Transaction”). This letter agreement constitutes a “Confirmation” as referred to in the ISDA Master Agreement specified below. This Confirmation shall replace any previous agreements and serve as the final documentation for the Transaction.