[Form 4] IPG PHOTONICS CORP Insider Trading Activity

Rhea-AI Filing Summary

IPG Photonics Corporation (IPGP) reported insider share sales by a major shareholder and director-level insider. On November 21 and 24, 2025, the reporting person sold several blocks of IPG Photonics common stock, including 7,859 shares at a weighted average price of $73.16, 20,163 shares at $74.65, 1,145 shares at $74.97, 4,642 shares at $75.83, and 30,346 shares at $76.44, through open-market sale transactions.

These transactions were made under a Rule 10b5-1 trading plan adopted on June 13, 2025, which is a preset plan designed to allow insiders to systematically sell shares. After the reported sales, the insider beneficially owned 6,721,503 shares of IPG Photonics common stock directly.

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^*

IP FIBRE DEVICES LTD

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

3. Date of Earliest Transaction (Month/Day/Year)
11/21/2025

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	11/21/2025		S		7,859	D(1)	$73.16(2)	6,777,811	D
Common Stock	11/21/2025		S		20,163	D(1)	$74.65(3)	6,757,648	D
Common Stock	11/21/2025		S		1,145	D(1)	$74.97(4)	6,756,503	D
Common Stock	11/24/2025		S		4,642	D(1)	$75.83(5)	6,751,861	D
Common Stock	11/24/2025		S		30,346	D(1)	$76.44(6)	6,721,515	D
Common Stock	11/24/2025		S		12	D(1)	$76.98	6,721,503	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 June 13, 2025.

2. The reported transaction involves sale transactions ranging from $72.72 to $73.51 per share. The weighted average price per share was $73.16. 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.

3. The reported transaction involves sale transactions ranging from $73.76 to $74.75 per share. The weighted average price per share was $74.65. 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.

4. The reported transaction involves sale transactions ranging from $74.76 to $75.11 per share. The weighted average price per share was $74.97. 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.

5. The reported transaction involves sale transactions ranging from $74.98 to $75.97 per share. The weighted average price per share was $75.83. 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.

6. The reported transaction involves sale transactions ranging from $75.98 to $76.97 per share. The weighted average price per share was $76.44. 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 does the latest Form 4 for IPG Photonics (IPGP) report?

The Form 4 reports that a director-level, 10% owner of IPG Photonics sold multiple blocks of common stock on November 21 and 24, 2025 in open-market transactions.

How many IPG Photonics (IPGP) shares did the insider sell and at what prices?

The insider sold blocks of 7,859 shares at a weighted average price of $73.16, 20,163 shares at $74.65, 1,145 shares at $74.97, 4,642 shares at $75.83, and 30,346 shares at $76.44, along with a small 12-share sale at $76.98.

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

Following the reported transactions, the insider beneficially owned 6,721,503 shares of IPG Photonics common stock directly.

Were the IPG Photonics (IPGP) insider stock sales under a Rule 10b5-1 plan?

Yes. The filing states that the sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 13, 2025.

What price ranges were involved in the IPG Photonics (IPGP) insider sales?

The filing notes price ranges for each sale group, including $72.72 to $73.51, $73.76 to $74.75, $74.76 to $75.11, $74.98 to $75.97, and $75.98 to $76.97 per share, with weighted average prices disclosed for each set.

What is the insider’s relationship to IPG Photonics (IPGP)?

The reporting person is identified as a director and 10% owner of IPG Photonics Corporation.