SCHEDULE 13G/A 0001104659-16-110585 0001031847 XXXXXXXX LIVE 10 Common Stock, $0.0001 par value per share 12/31/2025 0001626971 Corvus Pharmaceuticals, Inc. 221015100 901 Gateway Boulevard Third Floor South San Francisco CA 94080 Rule 13d-1(d) Richard A. Miller X1 4897819.00 1188103.00 4897819.00 1188103.00 6085922.00 N 7.8 IN Richard A. Miller and Sandra J. Horning, Trustees of the Miller-Horning Family Trust u/a/d January 25, 1985 CA 0.00 1188103.00 0.00 1188103.00 1188103.00 N 1.6 OO Sandra J. Horning X1 0.00 1188103.00 0.00 1188103.00 1188103.00 N 1.6 IN Corvus Pharmaceuticals, Inc. 901 Gateway Boulevard, Third Floor, South San Francisco, CA 94080 Richard A. Miller ("Dr. Miller") Richard A. Miller and Sandra J. Horning, Trustees of the Miller-Horning Family Trust u/a/d January 25, 1985 (the "Miller-Horning Trust") Sandra J. Horning ("Dr. Horning," and collectively with Dr. Miller and the Miller-Horning Trust, the "Reporting Persons") c/o Corvus Pharmaceuticals, Inc., 901 Gateway Boulevard, Third Floor, South San Francisco, CA 94080 Dr. Miller is a U.S. citizen. The Miller-Horning Trust is organized under the laws of the State of California. Dr. Horning is a U.S. citizen. Y The ownership information presented below represents beneficial ownership of Common Stock of the Issuer as of December 31, 2025, based upon 74,681,872 shares of Common Stock outstanding as of November 4, 2025, as disclosed in the Issuer's Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission on November 4, 2025. All percentages assume the exercise of stock options held directly by each of the Reporting Persons, as applicable. Dr. Miller is the beneficial owner of 6,085,922 shares of Common Stock, which consists of (i) 1,136,707 shares of Common Stock held directly by Dr. Miller, (ii) 1,188,103 shares of Common Stock directly held by the Miller-Horning Trust, over which Dr. Miller and Dr. Horning share voting, investment and dispositive power, and (iii) 3,761,112 shares of Common Stock underlying stock options that are vested or will vest within 60 days of December 31, 2025. Each of the Miller-Horning Trust and Dr. Horning is the beneficial owner of 1,188,103 shares of Common Stock. Dr. Miller - 7.8% Miller-Horning Trust - 1.6% Dr. Horning - 1.6% Dr. Miller - 4,897,819 Miller-Horning Trust - 0 Dr. Horning - 0 Dr. Miller - 1,188,103 Miller-Horning Trust - 1,188,103 Dr. Horning - 1,188,103 Dr. Miller - 4,897,819 Miller-Horning Trust - 0 Dr. Horning - 0 Dr. Miller - 1,188,103 Miller-Horning Trust - 1,188,103 Dr. Horning - 1,188,103 Y Y Y Y Y Y Richard A. Miller /s/ Richard A. Miller 02/13/2026 Richard A. Miller and Sandra J. Horning, Trustees of the Miller-Horning Family Trust u/a/d January 25, 1985 /s/ Richard A. Miller 02/13/2026 Sandra J. Horning /s/ Richard A. Miller 02/13/2026