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. The vote took place on August 3, 2025, at Boeing facilities in St. Louis, St. Charles, Missouri, and Mascoutah, Illinois. As a result of the rejection, workers will begin a strike at midnight on August 4.
This decision follows an earlier vote on July 27 in which union members also rejected Boeing’s previous proposal. IAM District 837 Directing Business Representative Tom Boelling stated, “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 process: “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 importance of IAM members’ work: “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, added: “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.”
The striking workers assemble and maintain advanced aircraft such as the F-15 and F/A-18 fighter jets as well as missile and defense technologies used by U.S. forces and allies.
The International Association of Machinists and Aerospace Workers represents about 600,000 active and retired members across various industries including aerospace, defense, airlines, railroad transit, healthcare, automotive sectors in both the United States and Canada.
