Can investors see the exact share amounts sold at each individual price?

The filing notes that the trust will provide, upon request by the SEC staff, the issuer, or a security holder, information on the number of shares sold at each separate price within the disclosed price ranges.

IPG Photonics (NASDAQ: IPGP) 10% owner trust logs Rule 10b5-1 stock sales

Q: What insider activity did IPG Photonics (IPGP) report in this Form 4?

The filing shows that Valentin Gapontsev Trust I , a 10% owner of IPG Photonics, reported open-market sales of common stock on 01/15/2026 in two separate transactions.

Q: How many IPG Photonics shares did Valentin Gapontsev Trust I sell?

The trust sold 571 shares of common stock in one transaction at a weighted average price of $79.38 and 7,381 shares in another transaction at a weighted average price of $80.16 .

Q: At what prices were the IPGP shares sold by the trust?

One group of sales occurred at prices ranging from $78.66 to $79.63 per share, with a weighted average of $79.38 . The second group occurred between $79.68 and $80.50 per share, with a weighted average of $80.16 .

Q: How many IPG Photonics shares does the reporting trust own after these sales?

Following the reported transactions, Valentin Gapontsev Trust I beneficially owned 6,793,099 shares of IPG Photonics common stock, held directly.

Q: Who is identified as the reporting person in this IPG Photonics Form 4?

The reporting person is Valentin Gapontsev Trust I , which is marked as a 10% owner of IPG Photonics Corp and reports the transactions as holdings held directly.

Filing Impact

(Very High)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

IPG Photonics Corp 10% owner Valentin Gapontsev Trust I reported planned sales of common stock. On 01/15/2026, the trust sold 571 shares at a weighted average price of $79.38 and 7,381 shares at a weighted average price of $80.16, in open-market transactions coded as sales. These trades were executed under a Rule 10b5-1 trading plan adopted on June 13, 2025, meaning the sales followed a pre-established schedule.

After these transactions, the reporting trust beneficially owned 6,793,099 shares of IPG Photonics common stock, held directly. The filing notes that the actual trade prices ranged from $78.66 to $79.63 for the first set of sales and from $79.68 to $80.50 for the second, and the trust has agreed to provide detailed breakdowns of shares sold at each price upon request.

Insider Trade Summary

Net Seller: 7,952 shares ($636,987)

Net Sell 2 txns

Insider Valentin Gapontsev Trust I

Role 10% Owner

Sold 7,952 shs ($637K)

Type	Security	Shares	Price	Value
Sale	Common Stock	571	$79.38	$45K
Sale	Common Stock	7,381	$80.16	$592K

Holdings After Transaction: Common Stock — 6,800,480 shares (Direct)

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 June 13, 2025. The reported transaction involves sale transactions ranging from $78.66 to $79.63 per share. The weighted average price per share was $79.38. 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 $79.68 to $80.50 per share. The weighted average price per share was $80.16. 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.

Form 4 Insider Transactions: What Each Field Means →

01/16/2026 - 04:12 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^*

Valentin Gapontsev Trust I

(Last)

(First)

(Middle)

3 EXECUTIVE PARK DRIVE, SUITE 302

(Street)

BEDFORD

03110

(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
Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
01/15/2026

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)
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	01/15/2026		S		571	D⁽¹⁾	$79.38⁽²⁾	6,800,480	D
Common Stock	01/15/2026		S		7,381	D⁽¹⁾	$80.16⁽³⁾	6,793,099	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 June 13, 2025.

2. The reported transaction involves sale transactions ranging from $78.66 to $79.63 per share. The weighted average price per share was $79.38. 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 $79.68 to $80.50 per share. The weighted average price per share was $80.16. 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 for Valentin Gapontsev Trust I	01/16/2026
	** 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.

Source: View Original Filing on SEC EDGAR

FAQ

What insider activity did IPG Photonics (IPGP) report in this Form 4?

The filing shows that Valentin Gapontsev Trust I, a 10% owner of IPG Photonics, reported open-market sales of common stock on 01/15/2026 in two separate transactions.

How many IPG Photonics shares did Valentin Gapontsev Trust I sell?

The trust sold 571 shares of common stock in one transaction at a weighted average price of $79.38 and 7,381 shares in another transaction at a weighted average price of $80.16.

At what prices were the IPGP shares sold by the trust?

One group of sales occurred at prices ranging from $78.66 to $79.63 per share, with a weighted average of $79.38. The second group occurred between $79.68 and $80.50 per share, with a weighted average of $80.16.

How many IPG Photonics shares does the reporting trust own after these sales?

Following the reported transactions, Valentin Gapontsev Trust I beneficially owned 6,793,099 shares of IPG Photonics common stock, held directly.

Were the IPGP insider sales made under a Rule 10b5-1 trading plan?

Yes. The filing states that the sales reported were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting trust on June 13, 2025.

Who is identified as the reporting person in this IPG Photonics Form 4?

The reporting person is Valentin Gapontsev Trust I, which is marked as a 10% owner of IPG Photonics Corp and reports the transactions as holdings held directly.