Scatter plot of black hole vs. stellar mass. Filled red dots correspond to our sample of radio sources, and the sources in the comparison sample are shown as open symbols. Scaling relations are overlaid (Sani et al. 2011; DeGraf et al. 2015; Häring & Rix 2004). The legend at the right displays the adopted color code. The red cross in the top left corner shows the typical uncertainties ∼0.4 dex and ∼0.3 dex for the black hole and stellar masses, respectively.