MMT spectrum of SN2025cbj ∼56 days after the SN peak brightness. Zero velocity Hα and Hβ are marked with red and blue striped vertical lines, respectively. Zoom-ins on the Hα and β profiles with fits to a Lorentzian plus Gaussian shape are added, showing a good fit aside from the blue-wing asymmetry in Hα. The best-fit velocities (i.e., line FWHM) for both the Gaussian, v_G, and Lorentzian, v_L, components are presented next to the fits.