The nebular phase H |$\alpha$| velocity profile of SN 2023ixf. The velocity evolution is shown on the left highlighting the peak of the blueshifted (blue dashed line) and redshifted (red dotted line) high velocity features. The profile could be reproduced as seen on the right figure for day +413 using a triple Gaussian comprising of a very broad, central component (green dashed line) and two high velocity emissions features (blue and red dashed lines centred on approximately |$\pm 6000$| km s|$^{-1}$|⁠).