X0202 SCHEDULE 13G/A 0001298088-25-000007 0001298088 XXXXXXXX LIVE 1 Preferred Convertible 12/31/2024 0001070423 PLAINS ALL AMERICAN PIPELINE LP 726503204 333 CLAY STREET 333 CLAY STREET HOUSTON TX 77002 Rule 13d-1(b) CIBC Private Wealth Group LLC X1 0.00 0.00 0.00 0.00 0.00 0.0 HC PLAINS ALL AMERICAN PIPELINE LP 333 CLAY STREET, 333 CLAY STREET, HOUSTON, TEXAS, 77002. CIBC Private Wealth Group LLC 181 West Madison Chicago, IL 60602 181 West Madison Chicago, IL 60602 United States N HC 0 0 0 0 0 0 Y Y N CIBC National Trust Company 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. CIBC Private Wealth Group LLC Mary E. Antunes 10/05/2026