TESS residual light curve of AU Mic. Top panel: residual light curve for the first TESS visit (2018-Jul.-25 to 2018-Aug.-22). Bottom panel: residual curve for the second visit (2020-Jul.-04 to 2020-Jul.-30). Blue circles show AU Mic TESS flux data after subtracting the starspot model and black dotted lines show ± 2.5σ range around the starspot fit model, for σ = 162.5 e⁻s⁻¹. The flaring activity can be seen as positive groups of points above + 2.5σ and the transits as negative groups of points below − 2.5σ. Our predicted times of transits for AU Mic b (in orange) and AU Mic c (in green) are marked with arrows.