UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934 (Amendment No.    )

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☐	Preliminary Proxy Statement
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☐	Definitive Proxy Statement
☒	Definitive Additional Materials
☐	Soliciting Material under §240.14a-12

Bruker Corporation

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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	Your Vote Counts!
	BRUKER CORPORATION 2021 Annual Meeting Vote by June 3, 2021 11:59 PM ET
BRUKER CORPORATION         C/O AMERICAN STOCK TRANSFER 6201         FIFTEENTH AVENUE         BROOKLYN, NY 11219
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 You invested in BRUKER CORPORATION and it’s time to vote!

You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy material for the stockholder meeting to be held on June 4, 2021.

 Get informed before you vote

View the Annual Report and Notice and Proxy Statement online OR you can receive a free paper or email copy of the material(s) by requesting prior to May 21, 2021. If you would like to request a copy of the material(s) for this and/or future stockholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to sendmaterial@proxyvote.com. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy.

    *Please check the meeting materials for any special requirements for meeting attendance.

V1

Vote at www.ProxyVote.com

THIS IS NOT A VOTABLE BALLOT

This is an overview of the proposals being presented at the upcoming stockholder meeting. Please follow the instructions on the reverse side to vote these important matters.

Voting Items		Board Recommends
1.	Election of three directors to serve for a three-year term expiring in 2024.
	Nominees:
	01)   William A. Linton, Ph.D.	For
	02)   Adelene Q. Perkins
	03)   Robert Rosenthal, Ph.D.
2.	Approval on an advisory basis of the 2020 compensation of our named executive officers, as discussed in the Proxy Statement.	For
3.	Ratification of the appointment of PricewaterhouseCoopers LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2021.	For
NOTE: In their discretion, the proxies are authorized to vote on such other business as may properly come before the meeting or any adjournment or postponement thereof.

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