IPG Photonics owner sells 9,876 and 5,485 shares

Both reported sales were made under a Rule 10b5-1 trading plan adopted March 17, 2026.

Rhea-AI Filing Summary

IPG Photonics Corp. (IPGP) reports that its 10% owner, IP Fibre Devices Ltd., sold 9,876 shares of common stock at a weighted average price of $85.39 per share and 5,485 shares at $86.09 per share on October 2, 2026. Both sales were made under a Rule 10b5-1 trading plan adopted March 17, 2026.

Insider Trade Summary 10b5-1

Net Seller: 15,361 shares

Net Sell 2 txns

Insider IP FIBRE DEVICES LTD

Role 10% Owner

Sold 15,361 shs ($1.32M)

Type	Security	Shares	Price	Value
Sale	Common Stock F2, F1	9,876	$85.39	$843K
Sale	Common Stock F3, F1	5,485	$86.09	$472K

Holdings After Transaction: Common Stock — 6,390,628 shares (Direct)

Footnotes (3)

1. F1. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 17, 2026.
2. F2. The reported transaction involves sale transactions ranging from $85.00 to $85.94 per share. The weighted average price per share was $85.39. 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. F3. The reported transaction involves sale transactions ranging from $86.00 to $86.42 per share. The weighted average price per share was $86.09. 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.

Key Figures

Shares sold: 9,876 shares Weighted average sale price: $85.39 per share Shares sold: 5,485 shares +1 more

4 metrics

Shares sold 9,876 shares IP Fibre Devices Ltd. sale on October 2, 2026

Weighted average sale price $85.39 per share IP Fibre Devices Ltd. sale on October 2, 2026

Shares sold 5,485 shares IP Fibre Devices Ltd. sale on October 2, 2026

Weighted average sale price $86.09 per share IP Fibre Devices Ltd. sale on October 2, 2026

Key Terms

Rule 10b5-1 trading plan, weighted average price per share, 10% owner

3 terms

Rule 10b5-1 trading plan regulatory

"pursuant to a Rule 10b5-1 trading plan"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

weighted average price per share financial

"The weighted average price per share was $85.39"

10% owner regulatory

"IP Fibre Devices Ltd., a 10% owner"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many IPGP shares did IP Fibre Devices Ltd. sell, and at what prices?

IP Fibre Devices Ltd., a 10% owner of IPG Photonics (IPGP), sold 9,876 shares at a weighted average of $85.39 per share and 5,485 shares at $86.09 per share on October 2, 2026. Both sales were under a Rule 10b5-1 trading plan adopted March 17, 2026.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/06/2026 - 04:42 PM Accepted by SEC EDGAR 10/06/2026 - 04:42 PM Learn about SEC filing dates

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^*

IP FIBRE DEVICES LTD

(Last) (First) (Middle)

C/O IPG PHOTONICS CORPORATION

377 SIMARANO DRIVE

(Street)

MARLBOROUGH MASSACHUSETTS 01752

(City) (State) (Zip)

UNITED STATES

(Country)

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
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/02/2026

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

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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

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	10/02/2026		S		9,876	D(1)	$85.39(2)	6,396,113	D
Common Stock	10/02/2026		S		5,485	D(1)	$86.09(3)	6,390,628	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 March 17, 2026.

2. The reported transaction involves sale transactions ranging from $85.00 to $85.94 per share. The weighted average price per share was $85.39. 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 $86.00 to $86.42 per share. The weighted average price per share was $86.09. 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	10/06/2026
	** 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.
* Form 4: SEC 1474 (03-26)