[Form 4] IPG PHOTONICS CORP Insider Trading Activity

Rhea-AI Filing Summary

Insider sale by SVP Trevor Ness. Trevor Ness, SVP, Sales & Strategic Bus Dev at IPG Photonics Corporation (IPGP), sold a total of 1,678 shares on 09/18/2025 under a Rule 10b5-1 trading plan adopted May 28, 2025. The reported transactions consisted of 1,578 shares and 100 shares sold at prices ranging from $82.06 to $83.15, with a weighted average price of $82.61. Following these sales the filing reports beneficial ownership of approximately 40,565 shares. The filer signed via attorney-in-fact on 09/19/2025.

Positive

• Sales executed under a Rule 10b5-1 plan, indicating the trades were pre-planned and intended to comply with insider trading rules
• Timely disclosure filed (Form 4) documenting the transactions and remaining beneficial ownership

Negative

• Insider disposition of 1,678 shares by a senior officer, which some investors may interpret negatively despite being pre-planned

Insights

Corporate Governance Expert

TL;DR: Routine insider sale under a pre-existing 10b5-1 plan; not necessarily signal of company fundamentals.

The filing documents non-derivative disposals by a senior officer executed pursuant to a Rule 10b5-1 plan adopted May 28, 2025. The sales are modest in size (1,678 shares) relative to typical officer holdings and were executed across prices of $82.06–$83.15 with a weighted average of $82.61. Use of a 10b5-1 plan indicates the trades were pre-planned; governance reviewers will note compliance with required disclosure but should verify plan adoption timing and any blackout-period adherence if relevant.

Securities/Market Analyst

TL;DR: Small, pre-planned insider sales unlikely to materially affect valuation; monitor aggregate insider activity.

The transactions are straightforward sales of common stock totaling 1,678 shares on a single date. The weighted average price is $82.61. The remaining beneficial ownership after the reported sales is about 40,565 shares according to the filing. From a market-impact standpoint, the volume and value appear limited; investors may consider this as routine liquidity by an officer rather than a directional signal about company performance.

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^*

Ness Trevor

(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, Sales & Strategic Bus Dev

3. Date of Earliest Transaction (Month/Day/Year)
09/18/2025

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	09/18/2025		S		1,578	D(1)	$82.61(2)	40,665	D
Common Stock	09/18/2025		S		100	D(1)	$83.15	40,565	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 May 28, 2025.

2. The reported transaction involves sale transactions ranging from $82.06 to $83.02 per share. The weighted average price per share was $82.61. 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	09/19/2025
	** 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.
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