Hengeler Mueller and Cleary Gottlieb Steen & Hamilton have bagged lead roles on the €1bn (£677m) initial public offering (IPO) of drug packaging maker Gerresheimer – the biggest completed float in Germany this year.

Hengeler acted for Gerresheimer, with Frankfurt capital markets partner Daniela Favoccia leading a team including fellow partners Reinhold Ernst (capital markets), Matthias Blaum (corporate) and Heinrich Knepper (finance).