IPG Photonics (NASDAQ: IPGP) insiders update trust-based share holdings

Rhea-AI Filing Summary

IPG Photonics insiders Igor Samartsev, SVP and Chief Scientist, and director Natalia Pavlova reported their direct and indirect holdings of common stock. The filing lists Samartsev’s direct ownership and multiple indirect positions held through his spouse, her mother, and several trusts.

Footnotes state that Trust-I May 2017 received 5,369 shares from Samartsev and that Pavlova is an indirect beneficial owner as his spouse. Another footnote notes that on March 9, 2026, a Grantor Retained Annuity Trust made an annuity payment-in-kind of 28,908 shares to Trust May 2017.

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^*

Samartsev Igor

(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)
	SVP, Chief Scientist

3. Date of Earliest Transaction (Month/Day/Year)
03/09/2026

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

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

	Form filed by One Reporting Person
X	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								5,080(1)	D(2)
Common Stock								113,265	I	By Wife
Common Stock								10,000	I	By Wife's Mother
Common Stock								1,200	I	By Trust 2015
Common Stock								176,400	I	By Trust Sept. 2015
Common Stock								20,983	I	By Trust-G4 2016
Common Stock								20,982	I	By Trust-I 2016
Common Stock								122,660(3)	I	By Trust May 2017
Common Stock								241,341(1)	I	By Trust-I May 2017
Common Stock								0(3)	I	By Grantor Retained Annuity Trust November 2022
Common Stock								122,225	I	By Grantor Retained Annuity Trust I September 2025
Common Stock								121,951	I	By Grantor Retained Annuity Trust II September 2025

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

1. Name and Address of Reporting Person^*

Samartsev Igor

(Last) (First) (Middle)

C/O IPG PHOTONICS CORPORATION

377 SIMARANO DRIVE

(Street)

MARLBOROUGH MA 01752

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, Chief Scientist

1. Name and Address of Reporting Person^*

Pavlova Natalia

(Last) (First) (Middle)

C/O IPG PHOTONICS CORPORATION

377 SIMARANO DRIVE

(Street)

MARLBOROUGH MA 01752

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

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

Explanation of Responses:

1. This amount reflects 5,369 shares received by Trust-I May 2017 from the Reporting Person.

2. Ms. Pavlova, a director, is an indirect beneficial owner of such shares as the spouse of Dr. Samartsev, an officer.

3. On March 9, 2026, Grantor Retained Annuity Trust November 2022 made an annuity payment-in-kind of 28,908 shares to Trust May 2017.

Remarks:

	/s/ Adam N. King, Attorney-in-Fact for Natalia Pavlova and Igor Samartsev	03/09/2026
	** 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 does the latest IPGP Form 4 filing show about insider holdings?

The Form 4 shows updated direct and indirect common stock holdings for Igor Samartsev and director Natalia Pavlova, including shares held by Samartsev’s spouse, her mother, and several trusts associated with the insiders.

How many IPG Photonics shares moved via annuity payment on March 9, 2026?

On March 9, 2026, a Grantor Retained Annuity Trust made an annuity payment-in-kind of 28,908 shares of IPG Photonics common stock to Trust May 2017, adjusting the share balances between these related entities.

How is Natalia Pavlova related to Igor Samartsev in the IPGP Form 4?

The filing notes that director Natalia Pavlova is an indirect beneficial owner of certain shares as the spouse of officer Igor Samartsev, linking some reported indirect holdings to their marital relationship.

What transfer involving 5,369 IPGP shares is disclosed in the Form 4?

A footnote states that Trust-I May 2017 received 5,369 shares of IPG Photonics common stock from the reporting person, Igor Samartsev, updating the ownership position of that specific trust entity.

Which entities hold indirect IPG Photonics shares for the reporting insiders?

Indirect IPG Photonics holdings are reported as held by Samartsev’s wife, by his wife’s mother, and by several trusts, including Trust 2015, Trust Sept. 2015, Trust-G4 2016, Trust-I 2016, and multiple 2017 and 2025 Grantor Retained Annuity Trusts.