BRUKER CORP

On November 25, 2024, Dr. Cynthia Friend, a member of the Company’s Board of Directors, terminateda trading plan she had previously adopted with respect to the sale of securities of the Company’s common stock, intended to satisfy the affirmative defense of Rule 10b5-1(c) of the Exchange Act (“Rule 10b5-1 Trading Plan”). Dr. Friend’s Rule 10b5-1 Trading Plan wasadoptedon March 11, 2024, and provided for the sale of up to 1,785 shares of the Company’s common stock through December 31, 2024. As of the date of termination of her Rule 10b5-1 Trading Plan, Dr. Friend did not sell any shares of common stock under the termsof the Rule 10b5-1 Trading Plan.

Other than as disclosed above, none of our directors or officers (as defined in Rule 16a-1(f) of the Exchange Act)adopted, modified orterminated any contract, instruction, or written plan for the purchase or sale of our securities that was intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) of the Exchange Act or any non-Rule 10b5-1 trading arrangement (as defined in Item 408(c) of Regulation S-K) during the three months ended December 31, 2024.