In
Simon Zoller (att) (Kaiserslautern), Yuya Osako (att), Kevin Vogt (mid) (Augsburg), Dusan Svento (mid) (RB Salzburg), Slawomir Peszko (mid) (Parma), Tomas Kalas (def) (Chelsea – Loan), Mergim Mavraj (def) (Greuther Fürth), Pawal Olkowski (def) (Gornik Zabrze),
Out
Kacper Przybylko (r)(att) (Greuther Fürth), Adil Chihi (sp)(att) (Fulham), Mato Jajalo (sp)(mid) (HNK Rijeka), Koray Kacinoglu (def) (Altinordu), Fabian Schnellhardt (mid) (MSV Duisburg), Mauruce Exslager (sp)(att) (Darmstadt 98 – Loan), Kevin Mckenna (sp)(def) (Retired),
Target
Survival in the Bundesliga will be Köln's sole target this season.