The black hole mass-stellar mass relation at z ∼ 5 − 15, as marked. In each panel, points show PBH-seeded relations for different spins (0, +1 and −1), as marked. At z ∼ 5 − 10, we show observational results from a number of groups: Har+23 (Harikane et al. 2023), Mai+24 (Maiolino et al. 2024a), Koc+23,24 (Kocevski et al. 2023, 2025), Fur+23 (Furtak et al. 2024), Tri+24 (Tripodi et al. 2024), Juo+24 (Juodžbalis et al. 2024), Aki+25 (Akins et al. 2025a), Mai25 (Maiolino et al. 2025b), Kok+23 (Kokorev et al. 2023), Lar+23 (Larson et al. 2023), Bog+24 (Bogdán et al. 2024), Kov+24 (Kovács et al. 2024), Nap+24 (Napolitano et al. 2025) and Tay+25 (Taylor et al. 2025b). In all panels, long- and dot-dashed lines show observationally-inferred local relations from Reines & Volonteri (2015) and Suh et al. (2020), respectively. Finally, the dotted and short-dashed lines show a relation where the black hole mass is 25% and 100% of the stellar mass, respectively.