M & K Employee Solutions, LLC, et al., Petitioners v. Trustees of the IAM National Pension Fund

  1. October 22, 2025

    Feds Urge Justices To Back Machinists Fund In Pension Fight

    The federal government wrote in support of trustees of an International Association of Machinists pension fund in a dispute with employers at the U.S. Supreme Court, backing the union's argument that a pension plan actuary could change the methods and assumptions used to calculate withdrawal payments.

  2. October 15, 2025

    IAM Fund Urges Justices To Back Pension Liability Ruling

    Trustees for an International Association of Machinists pension fund urged the U.S. Supreme Court to back an appellate decision favoring the union in disputes with employers over pension plan liability, arguing federal benefits law gave a union arbitrator latitude on the methodology used to calculate the employers' withdrawal payments.

  3. July 03, 2025

    Justices Clarify Question Underlying Withdrawal Liability Case

    The U.S. Supreme Court clarified the question presented in a case it recently agreed to take up over the methodology for calculating businesses' liability for pulling out of multiemployer pension plans.

  4. June 30, 2025

    Justices Will Review Union Fund's Withdrawal Liability Math

    The U.S. Supreme Court took up a fight Monday over the correct way to calculate how much employers must pay when they withdraw from multiemployer retirement plans, granting an employer-side petition for review of a D.C. Circuit decision favoring a machinists' union.

  5. October 07, 2024

    Justices Want SG's Take On Union Pension Withdrawal Case

    The U.S. Supreme Court asked the federal government Monday to weigh in on an employer-side petition in a fight over what actuarial assumptions multi-employer pension funds are allowed to use under federal benefits law when determining an employer's withdrawal liability.

  6. August 01, 2024

    Employers Urge Justices Take Up Withdrawal Liability Fight

    The U.S. Supreme Court must resolve a circuit split over how to calculate the bills sent to companies that leave union pension plans, a group of employers has argued, fighting an argument by the trustees of an International Association of Machinists pension fund that the split is "tolerable."

  7. July 15, 2024

    Union Fund Asks Justices To Reject Withdrawal Liability Case

    A pension fund for the International Association of Machinists urged the U.S. Supreme Court not to disturb its win in a dispute with two employers over the correct way to calculate how much employers must pay when they withdraw from multiemployer retirement plans, saying retroactive recalculations are valid.

  8. May 24, 2024

    Petition Watch: Forum Shopping, Monopolies & Gun Safety

    Law360 looks at four U.S. Supreme Court petitions filed in the past two weeks, including the FDA's request that the justices curb an increase in forum shopping at the Fifth Circuit, and two veterinarians who want the justices to allow plaintiffs to pursue antitrust claims for actions allegedly leading to the creation of a monopoly.