[Form 4] IPG PHOTONICS CORP Insider Trading Activity

Rhea-AI Filing Summary

Form 4 summary for IPG Photonics (IPGP): Eugene A. Scherbakov, a director and reported >10% owner, sold shares on 09/23/2025 under a pre-established Rule 10b5-1 trading plan. The Form 4 reports two sale transactions: 1,555 shares at a weighted-average price of $81.54 and 1,145 shares at a weighted-average price of $82.17. Following the sales the filing lists beneficial ownership amounts of 71,275 and 70,130 shares respectively. The filing was signed by an attorney-in-fact on 09/24/2025 and includes commitments to provide detailed per-price execution data upon request.

Positive

• Sales executed under a Rule 10b5-1 plan, indicating pre-arranged transactions and reduced likelihood of opportunistic trading
• Clear disclosure of weighted-average prices and ranges with an offer to provide per-price execution details upon request
• Form 4 filed and signed (via attorney-in-fact), demonstrating compliance with Section 16 reporting requirements

Negative

• Insider sold 2,700 shares (1,555 + 1,145), which reduces the reporting person’s direct holdings
• Filing does not state the total outstanding holdings percentage, so investors cannot assess the absolute size of the remaining stake from this form alone

Insights

Securities Analyst

TL;DR: A director and significant owner executed Rule 10b5-1 sales totaling 2,700 shares on 09/23/2025, at ~ $81.54–$82.17 per share.

The disclosure is routine in structure: sales were effected pursuant to a Rule 10b5-1 trading plan adopted 06/13/2025, which indicates pre-arranged execution rather than opportunistic timing. The filing provides weighted-average prices and affirms willingness to supply per-price execution details to regulators or holders. For investors, this is a transparent insider disposition rather than an unexplained immediate sale.

Corporate Governance Expert

TL;DR: Insider sales reported under a documented 10b5-1 plan, with full Form 4 compliance and signature by attorney-in-fact.

The form shows compliance with Section 16 reporting obligations and inclusion of explanatory notes clarifying price ranges and the plan adoption date. The presence of an attorney-in-fact signature is standard when an agent executes filings. The filing does not disclose any derivative transactions or other changes in control.

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).

1. Name and Address of Reporting Person^*

SCHERBAKOV EUGENE A

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

3. Date of Earliest Transaction (Month/Day/Year)
09/23/2025

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	09/23/2025		S		1,555	D(1)	$81.54(2)	71,275	D
Common Stock	09/23/2025		S		1,145	D(1)	$82.17(3)	70,130	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 $80.95 to $81.95 per share. The weighted average price per share was $81.54. 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 $82.02 to $82.26 per share. The weighted average price per share was $82.17. 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	09/24/2025
	** 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

Who filed the Form 4 for IPGP and what is their relationship to the company?

The Form 4 was filed on behalf of Eugene A. Scherbakov, who is disclosed as a Director and a 10% owner of IPG Photonics.

What transactions are reported on the IPGP Form 4 dated 09/23/2025?

The filing reports two sales on 09/23/2025: 1,555 shares at a weighted-average price of $81.54 and 1,145 shares at a weighted-average price of $82.17.

Were the sales part of a trading plan?

Yes. The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 06/13/2025.

How many shares did the reporting person beneficially own after the transactions?

The Form 4 lists beneficial ownership amounts of 71,275 and 70,130 shares following the reported sales.

Who signed the Form 4 and when?

The filing is signed by Adam N. King, Attorney-in-Fact and dated 09/24/2025.