The United Auto Workers (UAW) union is under federal investigation after internal documents and union officials revealed that a failure to reinvest strike funds may have cost the organization an estimated $80 million in potential market gains. The union liquidated approximately $340 million in stock assets in August 2023 to pay workers during a six-week strike against the Detroit Three automakers, but failed to reinvest the funds in accordance with its own policy after the strike ended in late 2023.
According to sources familiar with the matter and documents reviewed by Reuters, the reinvestment delay lasted more than a year, despite board directives to resume investing after labor contracts were ratified. UAW’s investment policy calls for a portfolio balance of 30% in equities, 53% in fixed income, and 17% in alternative assets. However, union records show that by September 2024, only 5% of the portfolio had been returned to stock holdings, missing out on a substantial stock market rally during that period.
Union officials began raising concerns in late 2024 after noting unusually low portfolio returns compared to the broader market. A staff analysis conducted in February 2025 concluded the union could have earned $80 million more had it followed its investment strategy, particularly through allocations tied to the Russell 3000 index, which surged 33% between November 2023 and January 2025.
The union’s investment oversight has now drawn the attention of the federal monitor assigned under a 2020 settlement with the U.S. Department of Justice, following a prior corruption scandal within the UAW. While key union leaders, including President Shawn Fain and Secretary-Treasurer Margaret Mock, have not publicly commented on the matter, the board issued a statement asserting that Mock is under investigation for compliance failures related to the investment issue.
This controversy adds to mounting internal tensions between Fain and Mock, who were already at odds over budgetary and strategic decisions earlier this year. The union’s federal monitor recently concluded that Fain improperly removed responsibilities from Mock over disagreements tied to strike preparation and organizing expenses.
The UAW, which represents nearly 400,000 members, had gained renewed momentum after securing record contracts in 2023 and achieving a historic win at Volkswagen’s Tennessee plant in 2024. However, organizing efforts have since stalled, including a failed vote at Mercedes-Benz’s Alabama facility. The financial mismanagement now threatens to overshadow those gains and further complicate the union’s leadership dynamics.
