Form 4 Filing for Richard Bryan Riggsbee

Richard Bryan Riggsbee, a director at CareDx, Inc., acquired 9,795 shares of Common Stock on June 12, 2026. This transaction was made at a price of $0.0 per share. Following this acquisition, Riggsbee now holds a total of 39,312 shares. The shares were acquired as restricted stock units (RSUs) that vest on the earlier of the one-year anniversary of the grant date or the day before the first annual meeting after the grant date, contingent upon continuous service.