Lockheed Martin Corp., Lockheed Martin Aeronautics Co., Fort Worth, Texas, is awarded a not-to-exceed $224,875,729 undefinitized modification (P00014) to a previously awarded, fixed-price incentive (firm-target), advanced acquisition contract (N0001920C0009). This modification increases the ceiling to procure long lead-time materials, parts, components, and effort for the production of three Lot 15 F-35A aircraft and nine Lot 16 F-35 aircraft for the government of the Netherlands. Work will be performed in Fort Worth, Texas (57%); El Segundo, California (14%); Warton, United Kingdom (9%); Cameri, Italy (4%); Orlando, Florida (4%); Nashua, New Hampshire (3%); Baltimore, Maryland (3%); San Diego, California (2%); Nagoya, Japan (2%); and various undisclosed locations outside the continental U.S. (2%), and is expected to be completed in May 2026. Non-Department of Defense participant funds in the amount of $224,875,729 will be obligated at the time of award, none of which will expire at the end of the current fiscal year. The Naval Air Systems Command, Patuxent River, Maryland, is the contracting activity.