The quadrennial International Congress of Mathematicians (ICM) is the preeminent international gathering of mathematicians in the world. Organized by the International Mathematical Union, an organization with 87 adhering member nations, including the United States, the ICM serves as a global forum for mathematicians to present and learn about new mathematical developments, directions of future research, applications, ideas for pedagogy, and methodologies for disseminating and archiving mathematical knowledge. In 2026, the ICM will be held in Philadelphia, PA, on July 23 – 30, with an anticipated 5,000 individuals from around the world attending. With support from this grant the American Mathematical Society will advertise and execute a program to provide travel grants for approximately 140 US-based mathematicians. The Society has administered similar travel grant programs for previous ICM gatherings, beginning with ICM-90 in Kyoto, Japan. The participation of a robust contingent of US-based mathematicians in these events helps to sustain the US’s world leadership position in mathematical research and contributes directly to the US’s knowledge infrastructure, national security, industry, and commerce. Students and researchers supported by this grants program will have rich opportunities to learn from and interact with researchers from around the world and share their discoveries and insights. The 2026 ICM Structure Committee has set the following twenty topical sections for