[Form 4] IPG PHOTONICS CORP Insider Trading Activity

Rhea-AI Filing Summary

Insider sale under Rule 10b5-1: An officer and director, Angelo P. Lopresti, sold 1,500 shares of IPG Photonics Corp (IPGP) on 10/06/2025 at a weighted average price of $85.17 per share under a trading plan adopted on 06/13/2025. After the sale, he beneficially owned 62,885 shares directly. The filing states the sales occurred across prices ranging from $85.00 to $85.38 and that detailed per-price quantities are available on request.

This is a routine, pre-planned disposition under a Rule 10b5-1 plan rather than an ad-hoc sale, which provides an affirmative defense against insider trading claims when plan conditions are met. The sale reduced the reporting person’s direct holdings modestly but leaves a substantial remaining stake.

Positive

• Sale executed under a Rule 10b5-1 plan, providing an affirmative defense against insider trading concerns
• Weighted average sale price disclosed at $85.17, and price range ($85.00–$85.38) provided

Negative

• Insider holdings decreased by 1,500 shares on 10/06/2025
• Form does not disclose per-price quantities; only aggregate sale amount and weighted average are provided

Insights

Corporate Governance Analyst

TL;DR: A routine Rule 10b5-1 sale: small reduction in insider holdings, pre-planned and disclosed.

The transaction shows that Angelo P. Lopresti, an officer and director, executed a sale of 1,500 shares on 10/06/2025 under a Rule 10b5-1 plan adopted on 06/13/2025. The weighted average sale price was $85.17. Rule 10b5-1 plans are structured to separate trading decisions from inside information, which typically reduces governance concern about opportunistic timing.

Risks and dependencies include adherence to plan terms and whether any updates to holdings or additional open-plan trades exist; these details are not disclosed here. Monitor subsequent Form 4 filings and any amendments for additional sales or plan terminations over the next several months.

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^*

Lopresti Angelo P

(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
X	Officer (give title below)		Other (specify below)
	SVP, Secretary & Gen Counsel

3. Date of Earliest Transaction (Month/Day/Year)
10/06/2025

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	10/06/2025		S		1,500	D(1)	$85.17(2)	62,885	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 $85.00 to $85.38 per share. The weighted average price per share was $85.17. 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	10/06/2025
	** 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 IPGP insider Angelo Lopresti sell on 10/06/2025?

He sold 1,500 shares of IPG Photonics at a weighted average price of $85.17 per share under a Rule 10b5-1 trading plan.

Was the sale pre-planned or an ad-hoc transaction (IPGP)?

The sale was made pursuant to a Rule 10b5-1 plan adopted on 06/13/2025, indicating a pre-planned transaction.

How many IPGP shares does the reporting person own after the sale?

After the reported transaction the reporting person beneficially owned 62,885 shares directly.

What price range did the IPGP sale occur in?

The transactions occurred between $85.00 and $85.38, with a weighted average of $85.17.

Where can I find more detail about the exact number of shares sold at each price?

The reporting person stated they will provide per-price sale quantities upon request by the SEC staff, the issuer, or a security holder.