Luminosity function (LF, left) and mass function (MF, right) for a total of 3896 M dwarfs within 25 pc, including the 3352 primary M dwarfs in RMSTAR, their 305 wide stellar companions, plus 239 recovered from systems with higher mass primaries. Masses were calculated using the MLR at M_V of T. Johns et al. (2026, in preparation); see Section 5.4 for details on the methodology. Primaries are shown in red, resolved wide companions in blue, suspected unresolved multiples are in white, and M dwarfs with higher mass companions are in gray. Vertical black lines are drawn at M_G values corresponding to factors of two in mass in both panels, from left to right, respectively, at ﹩{ \mathcal M }﹩ = 0.60, 0.30, 0.15, and 0.075 ﹩{{ \mathcal M }}_{\odot }﹩. The derived MF for M dwarfs in the solar neighborhood is shown with a bold black curve.