[Form 4] IPG Photonics Corporation Insider Trading Activity

Rhea-AI Filing Summary

Insider sales by IPG Photonics officer recorded on Form 4. Trevor Ness, SVP, Sales & Strategic Bus Dev, sold a total of 1,678 shares on 08/27/2025 under a Rule 10b5-1 trading plan adopted May 28, 2025. The sales were reported at weighted average prices of $82.69 (1,004 shares) and $83.31 (674 shares), and the reporting lines show beneficial ownership of 42,917 and 42,243 shares following those transactions. The Form 4 was signed by an attorney-in-fact on 08/28/2025. The filing discloses price ranges and offers to provide per-price sale details on request.

Positive

• Transactions executed under a Rule 10b5-1 plan, which supports pre-planned, non-discretionary trading.
• Timely and detailed disclosure including weighted average prices, price ranges, and offer to provide per-price sale details on request.
• Form 4 identifies role and relationship (SVP, Sales & Strategic Bus Dev), aiding investor context.

Negative

• Officer reduced holdings by 1,678 shares, which may be perceived negatively by some investors despite being planned.
• Beneficial ownership declined to approximately 42k shares following the reported sales.

Insights

Securities Analyst

TL;DR: Routine insider sale under a 10b5-1 plan; modest share disposal by an officer, transparency maintained.

The reported transactions are sales, not option exercises or derivative moves, executed pursuant to a pre-established Rule 10b5-1 plan adopted May 28, 2025. Total shares sold equal 1,678 at weighted averages around $83, leaving the reporting person with roughly 42k shares. For investors, this is a standard liquidity event with clear disclosure of price ranges and willingness to provide detailed per-price sale data.

Corporate Governance Expert

TL;DR: Disclosure aligns with good governance practices; use of 10b5-1 plan reduces appearance of opportunistic timing.

The filing identifies the reporting person, relationship to issuer (SVP, Sales & Strategic Bus Dev), and notes implementation of a Rule 10b5-1 plan, which helps establish an affirmative defense against insider trading claims. Timely reporting and the offer to supply per-price details on request support transparency. The transactions are modest relative to institutional scales and appear procedural.

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).

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^*

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)
08/27/2025

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	08/27/2025		S		1,004	D(1)	$82.69(2)	42,917	D
Common Stock	08/27/2025		S		674	D(1)	$83.31(3)	42,243	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 $82.11 to $83.11 per share. The weighted average price per share was $82.69. 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 $83.17 to $83.72 per share. The weighted average price per share was $83.31. 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	08/28/2025
	** 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 did Trevor Ness (IPGP) report on the Form 4?

He reported sales of 1,678 shares on 08/27/2025 under a Rule 10b5-1 plan, with weighted average prices of $82.69 and $83.31.

Were the sales part of a planned trading program?

Yes. The Form 4 states the sales were effected pursuant to a Rule 10b5-1 trading plan adopted May 28, 2025.

How many shares did the reporting person hold after the transactions?

The filing shows beneficial ownership figures of 42,917 and 42,243 shares following the reported sales.

What price range and weighted averages were reported?

The sales ranged from $82.11 to $83.72 per share across transactions; weighted averages reported were $82.69 and $83.31.

When was the Form 4 signed?

The Form 4 was signed by an attorney-in-fact on 08/28/2025.