UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K _________________________ Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 Date of Report: October 29, 2025 Commission file number 1-33867 _________________________ TEEKAY TANKERS LTD. (Exact name of Registrant as specified in its charter) _________________________ 2nd Floor, Swan Building, 26 Victoria Street, Hamilton, HM 12, Bermuda (Address of principal executive offic ...