Aeterna Zentaris may sell up to 2.5M common shares up to $4.6M Aeterna Zentaris announced that it has entered into an at "At-the-Market" Issuance agreement with MLV & Co. under which the company may sell up to a maximum of 2.5M of its common shares through ATM issuances up to an aggregate amount of $4.6M. The common shares will be sold at market prices prevailing at the time of the sale of common shares.