Left panel: fractional distribution of Log (M_BH) for type-1 sources (in blue) and highly obscured sources (red). The gray shaded histogram and arrow show obscured sources for which the M_BH must be considered an upper limit, due to lack of bulge-to-total mass ratio information. Central panel: fractional distribution of Log (λ_Edd) (same colors of left panel). The gray shaded histogram and arrow show obscured sources for which the λ_Edd must be considered a lower limit, due to the upper limit in M_BH. Right panel: fractional distribution of the total stellar mass, as computed through SED fitting either in L12, B12 or D14 (same colors of left panel).