SCHEDULE 13G/A 0000903064-25-000005 0000903064 XXXXXXXX LIVE 1 COMMON STOCK 12/31/2025 0001370416 WESTPORT FUEL SYSTEMS INC. 960908507 1691 West 75th Avenue VANCOUVER, BRITISH COLUMBIA A1 V6P6G2 Rule 13d-1(b) GRACE & WHITE, INC. NY 154922.00 0.00 1163087.00 0.00 1163087.00 N 6.70 IA WESTPORT FUEL SYSTEMS INC. 1691 West 75th Avenue, Vancouver, British Columbia, Canada, V6P6G2 Grace & White, Inc. Grace & White, Inc., 515 Madison Ave., Suite 1700, NY NY 10022 New York Corporation N IA 1,163,087 6.70% 154,922 0 1,163,087 0 Y Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. GRACE & WHITE, INC. S/MARC RAVITZ 01/27/2026