On March 15, 2022, Dr. Marc Kastner informed the Board of Directors (“Board”) of Bruker Corporation (the “Company”) of his decision to retire and not to stand for re-election as a Class II director when his current term expires at the Company's 2023 Annual Meeting of Stockholders (“2023 Annual Meeting”). Dr. Kastner will continue to actively serve on the Board until the 2023 Annual Meeting. Dr. Kastner's decision to retire and not to stand for re-election is not due to any disagreement with the Company on any matter relating to its operations, policies, or practices.

On March 15, 2022, the Board approved an increase in the number of directors to expand the size of the Board by one director to a total of eleven directors, with such additional director assigned to Class II, and appointed Dr. Philip Ma to fill the newly created vacancy on the Board, effective as of April 1, 2022. Dr. Ma will initially serve as a director until the 2023 Annual Meeting. Dr. Ma has not been appointed to serve on any committees of the Board.