Approximately 3,200 members of the International Association of Machinists and Aerospace Workers (IAM) District 837 have voted to reject Boeing’s latest four-year labor agreement proposal. The vote took place on August 3, 2025, and affects workers at Boeing facilities in St. Louis and St. Charles, Missouri, as well as Mascoutah, Illinois. As a result of the rejection, a strike is set to begin at midnight on August 4.
The decision follows an earlier overwhelming rejection by union members of Boeing’s previous offer on July 27. IAM District 837 Directing Business Representative Tom Boelling commented on the outcome: “IAM District 837 members have spoken loud and clear, they deserve a contract that reflects their skill, dedication, and the critical role they play in our nation’s defense. We stand shoulder to shoulder with these working families as they fight for fairness and respect on the job.”
IAM International President Brian Bryant emphasized the union’s commitment to its democratic principles: “Our union is built on democracy, and our members have every right to demand a contract worthy of their contributions. We will be there on the picket lines, ensuring Boeing hears the collective power of working people.”
Sam Cicinelli, IAM Midwest Territory General Vice President, highlighted the significance of the work performed by District 837 members: “IAM District 837 members build the aircraft and defense systems that keep our country safe. They deserve nothing less than a contract that keeps their families secure and recognizes their unmatched expertise.”
Jody Bennett, IAM Resident General Vice President, underscored the importance of solidarity: “Solidarity is our strength. This vote shows that when workers stand together, they can push back against corporate greed and fight for a better future for themselves and their families. We are proud to back our members every step of the way.”
Members affected by this action are responsible for assembling and maintaining advanced aircraft such as the F-15 and F/A-18 fighter jets, along with missile and defense technologies used in U.S. national security operations.
The IAM Union represents about 600,000 active and retired workers across several industries throughout North America.
