IPG Photonics (IPGP) 10% owner IP Fibre Devices sells 27,000 shares

Rhea-AI Filing Summary

IPG Photonics Corp shareholder IP Fibre Devices Ltd, a ten percent owner, reported selling 27,000 shares of common stock on July 31, 2026. The sales were executed in multiple open-market transactions at weighted average prices of $85.76 and $86.14, with additional blocks at $87.45 and $88.59, under a Rule 10b5-1 trading plan adopted March 17, 2026.

Insider Trade Summary 10b5-1

Net Seller: 27,000 shares

Net Sell 4 txns

Insider IP FIBRE DEVICES LTD

Role 10% Owner

Sold 27,000 shs ($2.32M)

Type	Security	Shares	Price	Value
Sale	Common Stock F2, F1	25,994	$85.76	$2.23M
Sale	Common Stock F3, F1	506	$86.14	$44K
Sale	Common Stock F1	200	$87.45	$17K
Sale	Common Stock F1	300	$88.59	$27K

Holdings After Transaction: Common Stock — 6,436,302 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 $85.99 per share. The weighted average price per share was $85.76. 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 $86.40 per share. The weighted average price per share was $86.14. 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 total: 27,000 shares Weighted average price block 1: $85.76 per share Weighted average price block 2: $86.14 per share +3 more

6 metrics

Shares sold total 27,000 shares Aggregate common stock sales on July 31, 2026

Weighted average price block 1 $85.76 per share 25,994 shares sold between $85.00–$85.99

Weighted average price block 2 $86.14 per share 506 shares sold between $86.00–$86.40

Additional sale price 1 $87.45 per share Sale of 200 shares of common stock

Additional sale price 2 $88.59 per share Sale of 300 shares of common stock

Rule 10b5-1 plan adoption date March 17, 2026 Adoption date of trading plan used for sales

Key Terms

Rule 10b5-1 trading plan, weighted average price per share, ten percent owner, open market or private transaction

4 terms

Rule 10b5-1 trading plan regulatory

"The sales reported ... were effected 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 $85.76."

ten percent owner regulatory

"IP FIBRE DEVICES LTD is reported as a ten percent owner."

open market or private transaction financial

"Sale in open market or private transaction"

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

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/04/2026 - 04:58 PM Accepted by SEC EDGAR 08/04/2026 - 04:58 PM Learn about SEC filing dates

FAQ

What did IP Fibre Devices Ltd report in its IPGP Form 4 filing?

IP Fibre Devices Ltd reported sales of 27,000 shares of IPG Photonics common stock on July 31, 2026, executed in multiple open-market transactions at prices between $85.00 and $88.59, pursuant to a pre-adopted Rule 10b5-1 trading plan.

How many IPG Photonics (IPGP) shares were sold and at what prices?

The reporting person sold 27,000 shares of IPG Photonics common stock. Trades included 25,994 shares at a weighted average of $85.76, 506 shares at $86.14, 200 shares at $87.45, and 300 shares at $88.59 per share.

Were the IPGP share sales by IP Fibre Devices Ltd under a Rule 10b5-1 plan?

Yes. The filing states the sales were made under a Rule 10b5-1 trading plan adopted by IP Fibre Devices Ltd on March 17, 2026, indicating the transactions were pre-arranged rather than discretionary at the time of execution.

What is the relationship of IP Fibre Devices Ltd to IPG Photonics (IPGP)?

IP Fibre Devices Ltd is identified as a ten percent owner of IPG Photonics Corp. This ownership status requires reporting its trades in IPG Photonics securities on Form 4, including the July 31, 2026 sales of 27,000 common shares.

On what date did IP Fibre Devices Ltd sell IPGP shares reported in this Form 4?

All reported transactions took place on July 31, 2026. On that date, IP Fibre Devices Ltd executed several open-market sale transactions in IPG Photonics common stock at prices ranging from $85.00 to $88.59 per share.

How were the IPGP share sale prices for IP Fibre Devices Ltd’s Form 4 transactions structured?

Two transaction groups used weighted average prices: 25,994 shares between $85.00–$85.99 at $85.76, and 506 shares between $86.00–$86.40 at $86.14. Additional smaller blocks were sold at $87.45 and $88.59 per share.

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)
07/31/2026

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	07/31/2026		S		25,994	D(1)	$85.76(2)	6,437,308	D
Common Stock	07/31/2026		S		506	D(1)	$86.14(3)	6,436,802	D
Common Stock	07/31/2026		S		200	D(1)	$87.45	6,436,602	D
Common Stock	07/31/2026		S		300	D(1)	$88.59	6,436,302	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 $85.99 per share. The weighted average price per share was $85.76. 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 $86.40 per share. The weighted average price per share was $86.14. 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	08/04/2026
	** 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)