MARK MITCHELL plan to sell securities of FRONTIER GROUP HOLDINGS, INC. under Form 144

MARK MITCHELL filed Form 144 to notify SEC of plan to sell 125000 units of FRONTIER GROUP HOLDINGS, INC. securities around 2026-08-05, with aggregate market value of $968,750.00. The total outstanding units is 230215771.0. The amount planned to be sold represents 0.05% of total outstanding units;