Were the IPGP share sales by IP Fibre Devices Ltd pre-planned?

Yes. A Form 4 footnote states the sales were effected pursuant to a Rule 10b5-1 trading plan adopted by IP Fibre Devices Ltd on March 17, 2026 . Rule 10b5-1 plans are pre-arranged trading programs established in advance by insiders or large holders.

IPG Photonics (IPGP) 10% owner sells 65,700 common shares

Q: What did IP Fibre Devices Ltd report in its latest Form 4 for IPGP?

IP Fibre Devices Ltd reported selling a total of 65,700 IPG Photonics (IPGP) common shares in open-market transactions on June 29, 2026 . These transactions were executed under a Rule 10b5-1 trading plan adopted on March 17, 2026 .

Q: How many separate sale transactions did IP Fibre Devices Ltd report for IPGP?

The insider filing shows seven non-derivative sale transactions in IPG Photonics common stock on June 29, 2026 . Each row represents a group of trades at a specific weighted-average price, and together they total 65,700 shares sold.

Q: What type of security did IP Fibre Devices Ltd sell in IPG Photonics?

IP Fibre Devices Ltd sold Common Stock of IPG Photonics Corp. The Form 4 lists each transaction as a non-derivative security, specifically common stock, with all reported trades occurring on June 29, 2026 in the open market.

Filing Impact

(Very High)

Filing Sentiment

(Very Negative)

Form Type

Rhea-AI Filing Summary

IPG Photonics Corp large shareholder IP Fibre Devices Ltd, a ten percent owner, reported open-market sales of a total of 65,700 shares of common stock on June 29, 2026.

The shares were sold in multiple transactions at prices ranging from $99.55 to $106.87 per share, with several tranches reported at weighted-average prices between about $100.19 and $106.40. These sales were executed pursuant to a Rule 10b5-1 trading plan adopted on March 17, 2026. Following the transactions, IP Fibre Devices Ltd directly holds 6,527,161 shares of IPG Photonics common stock.

Insider Trade Summary 10b5-1

Net Seller: 65,700 shares ($6,809,233)

Net Sell 7 txns

Insider IP FIBRE DEVICES LTD

Role null

Sold 65,700 shs ($6.81M)

Type	Security	Shares	Price	Value
Sale	Common Stock	1,841	$100.19	$184K
Sale	Common Stock	2,405	$101.21	$243K
Sale	Common Stock	17,735	$102.09	$1.81M
Sale	Common Stock	13,304	$103.08	$1.37M
Sale	Common Stock	16,406	$104.33	$1.71M
Sale	Common Stock	2,684	$105.37	$283K
Sale	Common Stock	11,325	$106.40	$1.20M

Holdings After Transaction: Common Stock — 6,527,161 shares (Direct, null)

Footnotes (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. The reported transaction involves sale transactions ranging from $99.55 to $100.49 per share. The weighted average price per share was $100.19. 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. The reported transaction involves sale transactions ranging from $100.72 to $101.67 per share. The weighted average price per share was $101.21. 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. The reported transaction involves sale transactions ranging from $101.72 to $102.65 per share. The weighted average price per share was $102.09. 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. The reported transaction involves sale transactions ranging from $102.85 to $103.64 per share. The weighted average price per share was $103.08. 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. The reported transaction involves sale transactions ranging from $103.91 to $104.89 per share. The weighted average price per share was $104.33. 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. The reported transaction involves sale transactions ranging from $104.95 to $105.92 per share. The weighted average price per share was $105.37. 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. The reported transaction involves sale transactions ranging from $105.95 to $106.87 per share. The weighted average price per share was $106.40. 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: 65,700 shares Sale price range: $99.55–$106.87 per share Post-sale holdings: 6,527,161 shares +2 more

5 metrics

Shares sold 65,700 shares Total IPG Photonics common shares sold on June 29, 2026

Sale price range $99.55–$106.87 per share Price range of reported open-market sales

Post-sale holdings 6,527,161 shares IP Fibre Devices Ltd direct ownership after June 29, 2026 sales

Tranche at $106.40 11,325 shares at $106.40 One reported sale tranche of common stock

Tranche at $100.19 1,841 shares at $100.19 One reported sale tranche of common stock

Key Terms

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

4 terms

Rule 10b5-1 trading plan regulatory

"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person"

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.

open-market sale financial

"transaction_action": "open-market sale", "transaction_code_description": "Sale in open market or private transaction""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

ten percent owner regulatory

""is_ten_percent_owner": 1"

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/01/2026 - 04:38 PM Accepted by SEC EDGAR 07/01/2026 - 04:36 PM

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^*

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)
06/29/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	06/29/2026		S		1,841	D⁽¹⁾	$100.19⁽²⁾	6,527,161	D
Common Stock	06/29/2026		S		2,405	D⁽¹⁾	$101.21⁽³⁾	6,524,756	D
Common Stock	06/29/2026		S		17,735	D⁽¹⁾	$102.09⁽⁴⁾	6,507,021	D
Common Stock	06/29/2026		S		13,304	D⁽¹⁾	$103.08⁽⁵⁾	6,493,717	D
Common Stock	06/29/2026		S		16,406	D⁽¹⁾	$104.33⁽⁶⁾	6,477,311	D
Common Stock	06/29/2026		S		2,684	D⁽¹⁾	$105.37⁽⁷⁾	6,474,627	D
Common Stock	06/29/2026		S		11,325	D⁽¹⁾	$106.4⁽⁸⁾	6,463,302	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

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 $99.55 to $100.49 per share. The weighted average price per share was $100.19. 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 $100.72 to $101.67 per share. The weighted average price per share was $101.21. 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.

4. The reported transaction involves sale transactions ranging from $101.72 to $102.65 per share. The weighted average price per share was $102.09. 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.

5. The reported transaction involves sale transactions ranging from $102.85 to $103.64 per share. The weighted average price per share was $103.08. 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.

6. The reported transaction involves sale transactions ranging from $103.91 to $104.89 per share. The weighted average price per share was $104.33. 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.

7. The reported transaction involves sale transactions ranging from $104.95 to $105.92 per share. The weighted average price per share was $105.37. 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.

8. The reported transaction involves sale transactions ranging from $105.95 to $106.87 per share. The weighted average price per share was $106.40. 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	07/01/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

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

IP Fibre Devices Ltd reported selling a total of 65,700 IPG Photonics (IPGP) common shares in open-market transactions on June 29, 2026. These transactions were executed under a Rule 10b5-1 trading plan adopted on March 17, 2026.

At what prices did IP Fibre Devices Ltd sell IPGP shares?

The Form 4 notes that IP Fibre Devices Ltd sold IPG Photonics shares in multiple trades with prices ranging from about $99.55 to $106.87 per share. Several tranches have reported weighted-average prices between $100.19 and $106.40 per share.

How many IPG Photonics shares does IP Fibre Devices Ltd still own after these sales?

After the reported sales, IP Fibre Devices Ltd directly holds 6,527,161 shares of IPG Photonics common stock. This post-transaction ownership figure is disclosed in the Form 4 as the total number of shares beneficially owned following the June 29, 2026 transactions.

How many separate sale transactions did IP Fibre Devices Ltd report for IPGP?

The insider filing shows seven non-derivative sale transactions in IPG Photonics common stock on June 29, 2026. Each row represents a group of trades at a specific weighted-average price, and together they total 65,700 shares sold.

What type of security did IP Fibre Devices Ltd sell in IPG Photonics?

IP Fibre Devices Ltd sold Common Stock of IPG Photonics Corp. The Form 4 lists each transaction as a non-derivative security, specifically common stock, with all reported trades occurring on June 29, 2026 in the open market.