X0609 4 2026-05-11 0 0001871638 Blaize Holdings, Inc. BZAI 0002048317 Cannestra Anthony false C/O BLAIZE HOLDINGS, INC. 4659 GOLDEN FOOTHILL PARKWAY, SUITE 206 EL DORADO HILLS CA 95762 1 0 0 0 1 Common Stock 2026-05-11 4 M 0 50000 0.57 A 50000 D Common Stock 2026-05-11 4 S 0 50000 1.85 D 0 D Employee Stock Option (right to purchase) 0.57 2026-05-11 4 M 0 50000 D 2033-09-18 Common Stock 50000 112169 D The reported exercise of 50,000 stock options underlying 50,000 shares of the Issuer's common stock was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 11, 2025 (the "10b5-1 trading plan"). The reported sales were effected pursuant to the reporting person's Rule 10b5-1 trading plan. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.78 to $1.88, inclusive. Upon request by the SEC staff, the Issuer, or any security holder of the Issuer, full information regarding the number of shares sold at each separate price will be provided. The stock option to purchase one share of the Issuer's common stock for each stock option is fully vested and exercisable. Represents securities received as part of the Issuer's business combination, in connection with that certain Agreement and Plan of Merger, dated as of December 22, 2023 and amended on April 22, 2024, October 24, 2024, and November 21, 2024 (the "Merger Agreement") by and among the Issuer (formerly BurTech Acquisition Corp.), BurTech Merger Sub, Inc., Blaize, Inc. ("Legacy Blaize"), and for the limited purposes set forth therein, Burkhan Capital LLC, pursuant to which securities of Legacy Blaize were automatically converted into the right to receive stock options of the Issuer as set forth in the Merger Agreement. /s/ Harminder Sehmi, as Attorney-in-Fact 2026-05-12