Each year, the Institute awards its highest honor for alumni—the Distinguished Alumni Award—to those individuals who, because of both personal commitment and professional contributions, have made remarkable impacts in a field, on the community, or in society more broadly. The 2025 class of DAAs—first announced this year at Caltech's 88th Annual Seminar Day on May 17—are Deborah D.L. Chung (BS '73, MS '73) , Athanassios Fokas (PhD '79) , F. William Studier (PhD '63) , and Donald Truhlar (PhD '70)