[Form 4] IPG PHOTONICS CORP Insider Trading Activity

Rhea-AI Filing Summary

A director of IPG Photonics Corporation (IPGP) reported open-market sales of company stock. On 11/25/2025, the director sold 1,781 shares of common stock at a weighted average price of $76.72 per share and an additional 100 shares at $77.25 per share. After these transactions, the director beneficially owned 8,663 shares of IPG Photonics common stock in direct form. The filing states that the sales were made under a pre-arranged Rule 10b5-1 trading plan adopted on August 26, 2025, which is intended to allow insiders to sell shares according to a preset schedule.

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).

X

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^*

Agnes Tang

(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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
11/25/2025

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	11/25/2025		S		1,781	D(1)	$76.72(2)	8,763	D
Common Stock	11/25/2025		S		100	D(1)	$77.25	8,663	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. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 26, 2025.

2. The reported transaction involves sale transactions ranging from $76.02 to $76.96 per share. The weighted average price per share was $76.72. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

Remarks:

	/s/ Adam N. King, Attorney-in-Fact	11/25/2025
	** 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 in this Form 4?

The Form 4 reports that a director of IPG Photonics sold shares of the company’s common stock in open-market transactions on 11/25/2025.

How many IPG Photonics (IPGP) shares were sold and at what prices?

The director sold 1,781 shares of IPG Photonics common stock at a weighted average price of $76.72 per share and 100 shares at $77.25 per share.

How many IPG Photonics (IPGP) shares does the insider still own after these sales?

Following the reported transactions, the director beneficially owned 8,663 shares of IPG Photonics common stock, held directly.

What is the significance of the Rule 10b5-1 trading plan mentioned for IPGP?

The filing explains that the sales were made under a Rule 10b5-1 trading plan adopted on August 26, 2025. Such plans allow insiders to schedule trades in advance under predefined terms.

Was this Form 4 for IPG Photonics (IPGP) filed by one or multiple reporting persons?

The Form 4 indicates it was filed by one reporting person, not a group.

What is the relationship of the reporting person to IPG Photonics (IPGP)?

The reporting person is identified as a director of IPG Photonics Corporation.