Best fit to the RVs of GJ 3916. Top panel: fit to the RVs of the three components as a function of time. Middle panel: same fit, but phase folded to the period of the outer orbit and with the inner orbit subtracted. Bottom panel: fit to the inner orbit of the components Ba and Bb with outer orbit subtracted. The blue, red, and green symbols indicate the RVs of components A, Ba, and Bb, respectively. Measurements from CARMENES, FEROS, UVES, and HARPS are plotted as circular, squared, pentagonal, and triangular symbols, respectively.