Bruker exec reports tax-withholding share disposition

BRUKER CORP executive Mark Munch, Executive Vice President and President of Bruker Nano Inc., reported a Form 4 transaction involving company common stock.

Rhea-AI Filing Summary

BRUKER CORP executive Mark Munch, Executive Vice President and President of Bruker Nano Inc., reported a Form 4 transaction involving company common stock. On 2026-08-11, 1,619 shares of common stock were withheld by the company at $57.02 per share to satisfy tax withholding obligations arising from the vesting of previously granted restricted stock units. Following this tax-withholding disposition, Munch directly holds 123,347 shares of BRUKER CORP common stock.

Insider Trade Summary

Tax Withholding: 1,619 shares

Tax Withholding 1 txn

Insider Munch Mark

Role EXEC VP&PRES BRUKER NANO INC.

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F1	1,619	$57.02	$92K

Holdings After Transaction: Common Stock — 123,347 shares (Direct)

Footnotes (1)

1. F1. Represents shares withheld by the Company to satisfy tax withholding obligations in connection with the vesting of restricted stock units previously granted to the reporting person.

Key Figures

Shares withheld for tax: 1,619 shares Withholding price per share: $57.02 per share Shares owned after transaction: 123,347 shares

3 metrics

Shares withheld for tax 1,619 shares Common stock withheld on 2026-08-11 to satisfy tax withholding obligations on RSU vesting

Withholding price per share $57.02 per share Per-share value used for the 1,619-share tax-withholding disposition

Shares owned after transaction 123,347 shares Directly held BRUKER CORP common stock following the tax-withholding transaction

Key Terms

restricted stock units, tax withholding obligations, transaction code F

3 terms

restricted stock units financial

"in connection with the vesting of restricted stock units previously granted to the reporting person"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

tax withholding obligations financial

"withheld by the Company to satisfy tax withholding obligations in connection with the vesting"

transaction code F financial

"Transaction code F indicates payment of tax liability by delivering or withholding securities"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did BRKR executive Mark Munch report on this Form 4?

Mark Munch reported that 1,619 BRKR common shares were withheld on 2026-08-11 at $57.02 per share to cover tax withholding obligations from vesting restricted stock units.

Did Mark Munch of BRKR execute an open-market sale or purchase of shares?

No. The Form 4 shows no open-market buy or sell; instead, 1,619 shares were withheld by the company solely to satisfy tax withholding obligations tied to vesting restricted stock units.

How many BRKR shares does Mark Munch hold after the reported tax-withholding transaction?

After the transaction, Mark Munch directly holds 123,347 shares of BRUKER CORP common stock. This figure reflects his direct ownership position immediately following the 1,619-share tax-withholding disposition reported on the Form 4.

What does transaction code F mean in the BRKR Form 4 for Mark Munch?

Transaction code F indicates shares were delivered or withheld to pay an obligation. Here, 1,619 shares were withheld specifically to satisfy tax withholding obligations upon vesting of restricted stock units previously granted to Mark Munch.

Was the BRKR Form 4 transaction by Mark Munch made under a Rule 10b5-1 trading plan?

The filing’s Rule 10b5-1 checkbox is not marked as affirmative, and the footnote describes only tax withholding on vesting restricted stock units, with no reference to a 10b5-1 trading plan.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/13/2026 - 04:16 PM Accepted by SEC EDGAR 08/13/2026 - 04:15 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Munch Mark

(Last) (First) (Middle)

BRUKER CORPORATION

40 MANNING ROAD

(Street)

BILLERICA MASSACHUSETTS 01821

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
BRUKER CORP [ BRKR ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EXEC VP&PRES BRUKER NANO INC.

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/11/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	08/11/2026		F		1,619(1)	D	$57.02	123,347	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents shares withheld by the Company to satisfy tax withholding obligations in connection with the vesting of restricted stock units previously granted to the reporting person.

	/s/ Betsy Eberg, Attorney-in-Fact	08/13/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)