Assembly of early galaxies in the scenario in which primordial black holes act as the seeds of (isolated) structure formation. The left and right panels show the inferred stellar (blue points) and black hole (red points) masses for UHZ1 and GHZ9, observed at z ∼ 10.3 − 10.4. As marked, we show the assembly of the black hole mass (long-dash line), the halo mass (solid line), the accreted gas mass (dotted line), and the stellar mass (short-dash line). In each panel, the dot-dashed line shows the evolution of the minimum halo mass that is able to bind haloes with a baryonic over-density value of δ_b = 200.