The present invention relates to a cartridge holder of a drug delivery device, comprising:- a cartridge holder body (14) extending in a longitudinal axial direction (1, 2) to accommodate a cartridge (18) filled with a medicament,- an ejector (32) displaceably arranged inside the cartridge holder body (14) between a distal stop position (3) and a proximal stop position (4) and being operably engageable with the cartridge (18) to displace the cartridge (18) in proximal direction (2) relative to the cartridge holder body (14).
