Left: SED-based stellar mass distribution of our sample of 264 AGN candidates. The subsample of 23 galaxies that are not in the samples of MRBGD, shown here in red, contains the lowest stellar mass galaxies hosting an AGN candidate known today. The SED-based stellar mass distribution of our sample of 264 AGN candidates is also shown scaled down by a factor of 5 (blue dotted line). Right: black hole mass distribution of our sample of 300 AGN candidates with estimated black hole mass. The black hole masses were estimated from their IR luminosity, assuming L_bol = 0.1 L_Edd, the mean of our calibration sample. The subsample of 40 galaxies selected via the IR diagnostic, shown here in red, contains the lowest mass BH candidates known today. As in the left plot, the black hole mass distribution of our sample of 300 AGN candidates is also shown scaled down by a factor of 5 (blue dotted line).