4D announced the resignation from its board of Thomas Engelen, Non-executive Director, for personal reasons with effect from 20 May 2020. The 4D Board has four continuing non-executive directors, three of which are deemed to be independent, including the Chairperson, Professor Dr. med. Axel Glasmacher. As such, the Board will comprise a total of six directors, with the independent Chairperson holding a casting vote.