Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information set forth under the heading “Indenture” in

Entry into a Material Definitive Agreement. Indenture On August 24, 2026, Backblaze, Inc. (the “Company”) issued $201.25 million aggregate principal amount of the Company’s 0.00% Convertible Senior Notes due 2031 (the “Notes”), which included the full exercise by the Initial Purchasers’ (as defined below) option to purchase up to an additional $26.25 million aggregate principal amount of Notes. The Notes were issued pursuant to, and are governed by, an indenture dated as of August 24, 2026 (t…

The Notes were offered and sold to the Initial Purchasers in reliance on the exemption from registration provided by Section 4(a)(2) of the Securities Act, in a transaction not involving a public offering, and the Notes were resold by the Initial Purchasers to persons reasonably believed to be qualified institutional buyers in reliance on Rule 144A under the Securities Act. Any shares of Common Stock issued upon conversion of the Notes are expected to be issued in reliance on Section 4(a)(2)…

Other Events. On August 18, 2026, Backblaze, Inc. (the “Company”) issued a press release announcing its intention to offer $150 million aggregate principal amount of Convertible Senior Notes due 2031 in a private placement (the “offering”) to persons reasonably believed to be qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended (the “Securities Act”). The Company intends to use a portion of the net proceeds from the offering to fund the cost of ent…

Results of Operations and Financial Condition. On August 3, 2026 , the Company issued a press release announcing its financial results for the quarter ended June 30, 2026 . A copy of the press release and supplemental earnings presentation is attached hereto as Exhibit 99.1 and Exhibit 99.2, respectively, and are incorporated herein by reference. This information is intended to be furnished under

Entry into a Material Definitive Agreement. On June 30, 2026, Backblaze, Inc. (the “Company”) amended the negative covenant in its existing credit agreement with Citizens Bank, N.A. regarding the Company's ability to undertake capitalized lease transactions (the “Credit Agreement Amendment”). The purpose of this amendment is to expand the indebtedness threshold to permit up to $150 million in capital leases outstanding. The foregoing description of the Credit Agreement Amendment does not purp…

The Company issued the Warrants, and the Warrant Shares will be issued, in reliance upon the exemption from registration provided by Section 4(a)(2) of the Securities Act of 1933, as amended (the “Securities Act”), and Rule 506(b) of Regulation D promulgated thereunder, as a transaction by an issuer not involving any public offering. The Warrants were issued to a single accredited investor, without any general solicitation or general advertising, in reliance on representations made by CoreWea…

Entry into a Material Definitive Agreement. Effective on June 16, 2026, Backblaze, Inc. (the “Company”) entered into a Master Strategic Agreement with CoreWeave, Inc. (“CoreWeave”), along with Addendum No. 1 thereto (collectively, the “MSA”), pursuant to which the Company will provide CoreWeave with the following services: • Cloud object storage capacity on the Company’s B2 Cloud Storage platform, an IaaS offering in Backblaze’s data centers • The Company’s managed storage solution in CoreWea…

Results of Operations and Financial Condition. On May 4, 2026 , the Company issued a press release announcing its financial results for the quarter ended March 31, 2026 . A copy of the press release and supplemental earnings presentation is attached hereto as Exhibit 99.1 and Exhibit 99.2, respectively, and are incorporated herein by reference. This information is intended to be furnished under

Results of Operations and Financial Condition. On February 23, 2026 , the Company issued a press release announcing its financial results for the quarter ended December 31, 2025 . A copy of the press release and supplemental earnings presentation is attached hereto as Exhibit 99.1 and Exhibit 99.2, respectively, and are incorporated herein by reference. This information is intended to be furnished under

Other Events. In November 2025, the Company initiated certain transformation and restructuring actions designed primarily to improve efficiency and enhance the performance of its sales and marketing functions, and other corporate actions (the “2025 Restructuring Plan”). As part of the 2025 Restructuring Plan, the Company expects to incur total charges of approximately $4.4 million to $6.0 million, primarily in the fourth quarter of 2025. These charges include an estimated impairment of approx…

Results of Operations and Financial Condition. On November 6, 2025 , the Company issued a press release announcing its financial results for the quarter ended September 30, 2025 . A copy of the press release and supplemental earnings presentation is attached hereto as Exhibit 99.1 and Exhibit 99.2, respectively, and are incorporated herein by reference. This information is intended to be furnished under

Results of Operations and Financial Condition. On August 7, 2025 , the Company issued a press release announcing its financial results for the quarter ended June 30, 2025 . A copy of the press release and supplemental earnings presentation is attached hereto as Exhibit 99.1 and Exhibit 99.2, respectively, and are incorporated herein by reference. This information is intended to be furnished under

Other Events. On August 7, 2025, the Company announced that its Board of Directors has approved a stock repurchase program (the “Repurchase Program”), pursuant to which the Company may repurchase from time to time, shares of the Company’s Class A common stock, par value $0.0001 per share, up to an aggregate purchase price of $10 million during the next 12 months. Repurchases under the Repurchase Program may be made from time to time through open market purchases, in privately negotiated trans…

Entry into a Material Definitive Agreement. In connection with the Repurchase Program described in

Senior Vice President of Engineering — Tina Cessna: Tina Cessna is stepping down from her role as Senior Vice President of Engineering.

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information provided in

Entry into a Material Definitive Agreement. On June 4, 2025 (th e “Closing Date”), Backblaze, Inc. (the “Company”), as the borrower, entered into a credit agreement (the “Credit Agreement”), with Citizens Bank, N.A. (the “Lender”). The Credit Agreement provides for a senior secured revolving credit facility in an aggregate principal amount of up to $20.0 million (the “Revolving Facility”), of which an aggregate amount of up to $3.0 million will be available through a letter of credit sub faci…

Results of Operations and Financial Condition. On May 7, 2025 , Backblaze, Inc. (the “Company”) issued a press release announcing its financial results for the quarter ended March 31, 2025. A copy of the press release and supplemental earnings presentation is attached hereto as Exhibit 99.1 and Exhibit 99.2, respectively, and are incorporated herein by reference. This information is intended to be furnished under

Changes in Registrant’s Certifying Accountant. (a) Dismissal of Independent Registered Public Accounting Firm. On April 8, 2025, Backblaze, Inc. (the “Company”) notified BDO USA, P.C. (“BDO”) that it was dismissed as the Company’s independent registered public accounting firm, effective immediately. The decision to dismiss BDO was approved by the Company’s Audit Committee of the Board of Directors. The audit reports of BDO for the Company’s consolidated financial statements for each of the tw…

Results of Operations and Financial Condition. On February 25, 2025, Backblaze, Inc. (the “Company”) issued a press release announcing its financial results for the quarter and year ended December 31, 2024. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. This information is intended to be furnished under

Termination of a Material Definitive Agreement. On December 10, 2024, Backblaze, Inc. (the "Company") voluntarily terminated its Loan and Security Agreement with City National Bank, dated October 21, 2021, as amended, which included a revolving line of credit that was 100% collateralized by cash held by the Company. At the time of termination, no amounts were outstanding under the revolving line of credit as the Company had fully paid down the revolving credit amount following the completion…

Entry into a Material Definitive Agreement. On November 20, 2024, Backblaze, Inc., a Delaware corporation (the “Company”) entered into an underwriting agreement (the “Underwriting Agreement”) with Oppenheimer & Co. Inc. and Needham & Company, LLC acting as joint book-running managers and representatives of the several listed in Schedule 1 to the Underwriting Agreement (the “Underwriters”), relating to the sale and issuance of an aggregate of 6,250,000 shares (the “Shares”) of the Company’s Cl…

Results of Operations and Financial Condition. On November 7, 2024, Backblaze, Inc. (the “Company”) issued a press release announcing its financial results for the quarter ended September 30, 2024. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. This information is intended to be furnished under

Other Events. On November 7, 2024, the Company announced actions to improve its cost structure and operating efficiency (the “2024 Restructuring Plan”). The 2024 Restructuring Plan includes a reduction in headcount of approximately 12% of the Company’s workforce. The Company expects to incur expenses related to employee severance and benefits, the majority of which is expected to be in the form of accelerated restricted stock units of previously granted awards and other equity modifications.…