Henning studied Marketing and Insurance as a part of the Faculty of Economics at the University of Cologne. He also took part in an apprenticeship program for professional insurance and reinsurance training with Gerling Group General Insurance AG and Gerling Group Global Reinsurance AG.
He joined AGCS in 2008 as Head of Aviation Reinsurance Underwriting. In March 2020, Henning was appointed Chief Underwriting Officer Specialty and Member of the Board of Management at Allianz Global Corporate & Specialty SE, responsible for Aviation, Entertainment, Marine and Mid Corporate underwriting portfolios, plus Underwriting Integrity and Solutions and the Underwriting Academy. In July 2020, after a strategic restructuring of the AGCS Board, he took on responsibility for all AGCS regions and markets outside North America, which includes oversight for Asia Pacific, Central & Eastern Europe, Ibero-LatAm, Mediterranean & Africa and Regional Unit London