EXHIBIT B JOINT FILING AGREEMENT PURSUANT TO RULE 13d-1(k)(1)Joint Filing Agreement • February 14th, 2024 • Berkshire Hathaway Inc • Fire, marine & casualty insurance
Contract Type FiledFebruary 14th, 2024 Company IndustryThe undersigned persons hereby agree that reports on Schedule 13G, and amendments thereto, with respect to the Common Stock of Ally Financial Inc. may be filed in a single statement on behalf of each of such persons, and further, each of such persons designates Warren E. Buffett as its agent and Attorney-in-Fact for the purpose of executing any and all Schedule 13G filings required to be made by it with the Securities and Exchange Commission.