Mark Eban, global head of capital markets at Commerzbank Securities, has become the latest senior banker to leave after a wave of departures over the past four months.

Mehmet Dalman, head of investment banking, told staff of Eban's departure in an internal memo. He said: "Eban has been with Commerzbank almost from its inception. He has performed a number of key roles and been instrumental in the development of our business. I shall indeed miss him."