Nearly 11,000 Harvard alumni filed an amicus brief backing the university in its year-long appellate dispute against the Trump administration over federal research funding, with nearly 900 Harvard Business School graduates among the signatories. The case is President and Fellows of Harvard College v. U.S. Department of Health and Human Services. Harvard Business School reported 881 HBS signatories across classes from 1956 to 2025, framing the filing as the broadest single-school participation in an appellate brief in U.S. history, according to the brief’s reporting. Harvard College accounts for roughly two-thirds of signatories overall, with Harvard Law next among the schools. The brief underscores an unusually coordinated alumni response at a moment when federal funding rules and enforcement priorities are under scrutiny across universities. It also signals that the dispute is not only about institutional dollars but also about governance and how research funding priorities are set. Higher education leaders will likely watch the First Circuit as courts determine how far federal agencies can restructure funding decisions affecting universities’ research enterprises.