IPG Photonics (IPGP) accounting chief sells 500 shares at $116.22

Rhea-AI Filing Summary

IPG Photonics Corp executive Mary E. Buttarazzi, the VP, Corporate Controller and Chief Accounting Officer, sold 500 shares of common stock in an open-market transaction at $116.22 per share. After this sale, she directly holds 4,749 shares, indicating a relatively small, routine reduction in her equity position.

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

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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^*

Buttarazzi Mary E.

(Last) (First) (Middle)

C/O IPG PHOTONICS CORPORATION

377 SIMARANO DRIVE

(Street)

MARLBOROUGH MA 01752

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
IPG PHOTONICS CORP [ IPGP ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	VP, Corp Controller and CAO

3. Date of Earliest Transaction (Month/Day/Year)
03/17/2026

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

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

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

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	03/17/2026		S		500	D	$116.22	4,749	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:

Remarks:

	/s/ Adam N. King, Attorney-in-Fact	03/17/2026
	** 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.

FAQ

What insider transaction did IPG Photonics (IPGP) report for Mary E. Buttarazzi?

IPG Photonics reported that executive Mary E. Buttarazzi sold 500 common shares. The transaction was an open-market sale at $116.22 per share, reducing her directly held position while leaving her with 4,749 remaining shares after the trade.

What price did Mary E. Buttarazzi receive per share in the IPGP insider sale?

Mary E. Buttarazzi sold her IPG Photonics shares at $116.22 per share. This price reflects the execution level for 500 common shares in an open-market transaction, as disclosed in the Form 4 insider trading report filed for IPGP.

How many IPG Photonics (IPGP) shares does Mary E. Buttarazzi hold after the sale?

Following the reported transaction, Mary E. Buttarazzi directly holds 4,749 IPG Photonics common shares. This remaining stake, disclosed in the Form 4, shows her continuing equity ownership after selling 500 shares in the open market at $116.22 per share.

What role does Mary E. Buttarazzi hold at IPG Photonics (IPGP)?

Mary E. Buttarazzi serves as VP, Corporate Controller and Chief Accounting Officer at IPG Photonics. Her position and the size of her equity stake are detailed in the Form 4, which also reports her recent open-market sale of 500 common shares.

Was the IPG Photonics (IPGP) insider transaction a purchase or a sale?

The reported insider transaction for IPG Photonics was a sale. Mary E. Buttarazzi disposed of 500 common shares in an open-market trade, coded as a sale, and continues to hold 4,749 shares directly after this transaction according to the Form 4 filing.