IPGP SEC Filing News — IPG Photonics Corporation

Latest SEC filings for IPG Photonics Corporation (IPGP) explained in plain English. Covers insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). StrongBuyAnalytics provides navigation and brief excerpts or summaries; original filings remain at the SEC/source links and were authored by their filers, not StrongBuyAnalytics. Filing dates shown are source dates. Coverage and detection can be delayed or incomplete because of SEC availability, amendments, parsing, caching, or outages. Latest source filing date shown: 2026-10-06.

IPG Photonics Corporation develops, manufactures, and sells fiber lasers, fiber amplifiers, diode lasers, and laser-based systems used in materials processing, medical, and advanced applications. The company offers laser products, including hybrid fiber-solid state lasers with green and ultraviolet wavelengths; fiber pigtailed packaged diodes and fiber coupled direct diode laser systems; and high-energy pulsed lasers, multi-wavelength and tunable lasers, and single-polarization and single-freque…
Sector: Technology Industry: Semiconductor Equipment & Materials Market Cap: $3.1B CIK: 1111928
20
Total Filings
1
Bullish Classifications
11
Bearish Classifications
12
Insider Transactions
3
Material Events (8-K)
1
Periodic Reports
Rule-based classifications for IPGP currently lean bearish. Of the 20 filing records displayed, 11 carry bearish classifications (such as insider sales or negative 8-K disclosures) versus 1 bullish. This does not necessarily signal fundamental deterioration — insiders sell for many reasons — but it is worth monitoring alongside the company's core financial metrics.
IPGP Filing Activity Snapshot 2026-06-29 — 2026-10-06
Insider Transactions (Form 4)
1 buy vs 10 sells
Net insider selling in this period — insiders sell for many reasons beyond conviction.
Largest Form 144 Filing
$11.56M
IP FIBRE DEVICES LTD · 2026-10-02
135,000 shares · Form 144
Form 144 Notices
4
Proposed insider sales filed — Form 144 is a notice of intent, not a confirmed transaction. Actual sales are confirmed via Form 4.
Insider Transactions 12 · Forms 3, 4 and 5

A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 12 filings in this group are Form 4s for IPG Photonics Corporation.

The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.

Across the 12 insider filings shown, the breakdown is 10 open-market sale, 1 open-market purchase and 1 tax withholding. 11 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.

What each transaction type means

Open-market sale ×10
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Open-market purchase ×1
The insider bought shares on the open market with their own money. This is the only Form 4 category that requires a discretionary cash outlay at the prevailing price.
Tax withholding ×1
Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.
Form 4 Open-market sale Insider Selling 2026-10-06

IPGP insider IP FIBRE DEVICES LTD (10% Owner) sold 15,361 shares (~$1.32M)

IP FIBRE DEVICES LTD, listed as 10% Owner at IPG PHOTONICS CORP, reported an open-market sale of 15,361 IPGP shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 9,876 $85.39 $843.3K
S Open-market sale 5,485 $86.09 $472.2K
Filing: Form 4 (Insider Transaction) Insider: IP FIBRE DEVICES LTD (10% Owner) Shares: 15,361 Est. Value: $1.32M
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-10-06

IPGP insider SCHERBAKOV EUGENE A (Director, 10% Owner) sold 3,048 shares (~$260.0K)

SCHERBAKOV EUGENE A, listed as Director, 10% Owner at IPG PHOTONICS CORP, reported an open-market sale of 3,048 IPGP shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 3,048 $85.30 $260.0K
Filing: Form 4 (Insider Transaction) Insider: SCHERBAKOV EUGENE A (Director, 10% Owner) Shares: 3,048 Est. Value: $260.0K
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-09-03

IPGP insider Valentin Gapontsev Trust I (10% Owner) sold 27,397 shares (~$2.07M)

Valentin Gapontsev Trust I, listed as 10% Owner at IPG PHOTONICS CORP, reported an open-market sale of 27,397 IPGP shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 18,091 $75.14 $1.36M
S Open-market sale 4,591 $75.65 $347.3K
S Open-market sale 4,715 $76.25 $359.5K
Filing: Form 4 (Insider Transaction) Insider: Valentin Gapontsev Trust I (10% Owner) Shares: 27,397 Est. Value: $2.07M
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market purchase Insider Buying 2026-08-27

IPGP insider PEELER JOHN R (Director) bought 2,710 shares (~$199.4K)

PEELER JOHN R, listed as Director at IPG PHOTONICS CORP, reported an open-market purchase of 2,710 IPGP shares in a Form 4 filing. Insider buying is often treated as a bullish signal because company insiders are committing their own capital.

The insider bought shares on the open market with their own money. This is the only Form 4 category that requires a discretionary cash outlay at the prevailing price.

Transactions reported on this filing
Code Nature Shares Price Value
P Open-market purchase 1,552 $72.84 $113.0K
P Open-market purchase 1,158 $74.57 $86.4K
Filing: Form 4 (Insider Transaction) Insider: PEELER JOHN R (Director) Shares: 2,710 Est. Value: $199.4K
View on SEC EDGAR → Open Filing Document →
Form 4 Tax withholding Tax / Compensation Filing 2026-08-10

IPGP insider Form 4 filed for equity award, exercise, or tax withholding

Bucher Paulus (SVP, Global Operations) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.

Transactions reported on this filing
Code Nature Shares Price Value
F Tax withholding on vested shares 663 $90.23 $59.8K
Filing: Form 4 (Insider Transaction) Insider: Bucher Paulus (SVP, Global Operations) Shares: 663
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-08-06

IPGP insider IP FIBRE DEVICES LTD (10% Owner) sold 30,313 shares (~$2.90M)

IP FIBRE DEVICES LTD, listed as 10% Owner at IPG PHOTONICS CORP, reported an open-market sale of 30,313 IPGP shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 12,202 $95.18 $1.16M
S Open-market sale 11,912 $95.31 $1.14M
S Open-market sale 1,325 $96.76 $128.2K
S Open-market sale 4,324 $97.81 $422.9K
S Open-market sale 550 $98.71 $54.3K
Filing: Form 4 (Insider Transaction) Insider: IP FIBRE DEVICES LTD (10% Owner) Shares: 30,313 Est. Value: $2.90M
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-08-04

IPGP insider IP FIBRE DEVICES LTD (10% Owner) sold 27,000 shares (~$2.32M)

IP FIBRE DEVICES LTD, listed as 10% Owner at IPG PHOTONICS CORP, reported an open-market sale of 27,000 IPGP shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 25,994 $85.76 $2.23M
S Open-market sale 506 $86.14 $43.6K
S Open-market sale 200 $87.45 $17.5K
S Open-market sale 300 $88.59 $26.6K
Filing: Form 4 (Insider Transaction) Insider: IP FIBRE DEVICES LTD (10% Owner) Shares: 27,000 Est. Value: $2.32M
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-08-04

IPGP insider SCHERBAKOV EUGENE A (Director, 10% Owner) sold 1,524 shares (~$132.0K)

SCHERBAKOV EUGENE A, listed as Director, 10% Owner at IPG PHOTONICS CORP, reported an open-market sale of 1,524 IPGP shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 783 $85.72 $67.1K
S Open-market sale 200 $86.34 $17.3K
S Open-market sale 300 $87.45 $26.2K
S Open-market sale 241 $88.68 $21.4K
Filing: Form 4 (Insider Transaction) Insider: SCHERBAKOV EUGENE A (Director, 10% Owner) Shares: 1,524 Est. Value: $132.0K
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-07-22

IPGP insider Valentin Gapontsev Trust I (10% Owner) sold 56,316 shares (~$5.76M)

Valentin Gapontsev Trust I, listed as 10% Owner at IPG PHOTONICS CORP, reported an open-market sale of 56,316 IPGP shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 1,000 $100.08 $100.1K
S Open-market sale 7,100 $101.20 $718.5K
S Open-market sale 24,347 $102.04 $2.48M
S Open-market sale 23,869 $103.00 $2.46M
Filing: Form 4 (Insider Transaction) Insider: Valentin Gapontsev Trust I (10% Owner) Shares: 56,316 Est. Value: $5.76M
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-07-01

IPGP insider IP FIBRE DEVICES LTD (10% Owner) sold 65,700 shares (~$6.81M)

IP FIBRE DEVICES LTD, listed as 10% Owner at IPG PHOTONICS CORP, reported an open-market sale of 65,700 IPGP shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 1,841 $100.19 $184.4K
S Open-market sale 2,405 $101.21 $243.4K
S Open-market sale 17,735 $102.09 $1.81M
S Open-market sale 13,304 $103.08 $1.37M
S Open-market sale 16,406 $104.33 $1.71M
S Open-market sale 2,684 $105.37 $282.8K
S Open-market sale 11,325 $106.40 $1.20M
Filing: Form 4 (Insider Transaction) Insider: IP FIBRE DEVICES LTD (10% Owner) Shares: 65,700 Est. Value: $6.81M
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-07-01

IPGP insider Lopresti Angelo P (SVP, Secretary & Gen Counsel, 10% Owner) sold 1,000 shares (~$110.3K)

Lopresti Angelo P, listed as SVP, Secretary & Gen Counsel, 10% Owner at IPG PHOTONICS CORP, reported an open-market sale of 1,000 IPGP shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 1,000 $110.33 $110.3K
Filing: Form 4 (Insider Transaction) Insider: Lopresti Angelo P (SVP, Secretary & Gen Counsel, 10% Owner) Shares: 1,000 Est. Value: $110.3K
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-07-01

IPGP insider SCHERBAKOV EUGENE A (Director, 10% Owner) sold 1,524 shares (~$154.8K)

SCHERBAKOV EUGENE A, listed as Director, 10% Owner at IPG PHOTONICS CORP, reported an open-market sale of 1,524 IPGP shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 973 $100.43 $97.7K
S Open-market sale 250 $101.24 $25.3K
S Open-market sale 100 $102.92 $10.3K
S Open-market sale 1 $104.63 $104.63
S Open-market sale 200 $106.66 $21.3K
Filing: Form 4 (Insider Transaction) Insider: SCHERBAKOV EUGENE A (Director, 10% Owner) Shares: 1,524 Est. Value: $154.8K
View on SEC EDGAR → Open Filing Document →
Proposed Insider Sales 4 · Form 144

A Form 144 is a notice of intent to sell restricted or control securities. It is not a record that anything was sold. IPG Photonics Corporation has 4 such notices in this period.

The distinction matters because a Form 144 is frequently reported as though it were a completed insider sale. The filer may sell all of the shares covered, some of them, or none at all, and there is no obligation to update the notice either way. A sale that is actually executed by an officer or director shows up separately on a Form 4, which is the filing to check before treating a proposed sale as a real one.

Form 144 Large Proposed Insider Sale 2026-10-02

IPGP Form 144 filed for proposed insider sale by IP FIBRE DEVICES LTD (135,000 shares) ~$11.56M

IP FIBRE DEVICES LTD filed a Form 144 with the SEC indicating intent to sell IPGP (IPG PHOTONICS CORP) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4. The proposed dollar value is large enough to merit attention.

Filing: Form 144 (Proposed Sale Notice) Insider: IP FIBRE DEVICES LTD Shares: 135,000 Est. Value: $11.56M
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-10-02

IPGP Form 144 filed for proposed insider sale by SCHERBAKOV EUGENE A (7,620 shares) ~$650.0K

SCHERBAKOV EUGENE A filed a Form 144 with the SEC indicating intent to sell IPGP (IPG PHOTONICS CORP) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: SCHERBAKOV EUGENE A Shares: 7,620 Est. Value: $650.0K
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-09-22

IPGP Form 144 filed for proposed insider sale by Valentin Gapontsev Trust II (11,688 shares) ~$909.1K

Valentin Gapontsev Trust II filed a Form 144 with the SEC indicating intent to sell IPGP (IPG PHOTONICS CORP) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: Valentin Gapontsev Trust II Shares: 11,688 Est. Value: $909.1K
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-06-29

IPGP Form 144 filed for proposed insider sale by Lopresti Angelo P (3,000 shares) ~$331.0K

Lopresti Angelo P filed a Form 144 with the SEC indicating intent to sell IPGP (IPG PHOTONICS CORP) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: Lopresti Angelo P Shares: 3,000 Est. Value: $331.0K
View on SEC EDGAR → Open Filing Document →
Material Events 3 · Form 8-K

An 8-K reports a material event in the window between scheduled reports. There are 3 in this period for IPG Photonics Corporation. Each 8-K names the item number it is filed under, and that number is the fastest way to tell a routine disclosure from a consequential one.

Item 2.02 is an earnings release, Item 5.02 is a change of directors or officers, and Item 1.01 or 2.01 covers a material agreement or a completed acquisition. Item 7.01 and Item 8.01 are the general-purpose disclosure items and carry no fixed meaning on their own.

Form 8-K Material Company Update 2026-09-08

IPGP filed 8-K — material company event

IPG PHOTONICS CORP filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)
View on SEC EDGAR → Open Filing Document →
Form 8-K Material Company Update 2026-08-04

IPGP filed 8-K — material company event

IPG PHOTONICS CORP filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)
View on SEC EDGAR → Open Filing Document →
Form 8-K Material Company Update 2026-07-17

IPGP filed 8-K — material company event

IPG PHOTONICS CORP filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)
View on SEC EDGAR → Open Filing Document →
Periodic Reports 1 · Forms 10-K and 10-Q

The periodic reports are where the audited and reviewed financial statements live. This period contains 1 quarterly report (10-Q) for IPG Photonics Corporation.

The two are not equivalent in weight. A 10-K is audited by an external firm and includes the full risk factor disclosure, business description and management discussion; a 10-Q is unaudited, reviewed rather than examined, and much shorter. When a figure in a quarterly report is later revised, the annual report is usually where the correction appears.

An amended report — 10-K/A or 10-Q/A — restates or corrects something in the original filing, and is worth reading against the version it replaces.

Form 10-Q Quarterly Report 2026-08-04

IPGP filed Quarterly Report (10-Q)

IPG PHOTONICS CORP filed its quarterly report with the SEC. This report includes unaudited financial statements and management discussion for the quarter.

Filing: 10-Q (Quarterly Report)
View on SEC EDGAR → Open Filing Document →

How we classify IPG Photonics Corporation's filings

Straight from EDGAR

Each displayed record links to an original source document. StrongBuyAnalytics provides navigation and brief excerpts or summaries, not the filing itself. Parsing may omit context or contain errors, so read the original document in full.

Transaction codes, not guesswork

The nature shown on each insider filing comes from the transaction code the filer entered on the form itself — P for an open-market purchase, A for a compensation award, F for shares withheld to pay tax, M for an option exercise. Where one filing contains several codes, the transaction table lists them line by line.

Why the distinction matters

Insider activity is routinely summarised as buying or selling, which flattens together decisions that mean very different things. Shares withheld for tax on a vesting grant are an automatic administrative step; shares bought on the open market are someone committing their own money at the current price.

What this page does not tell you

A filing records what happened, not why. Form 4 does not always disclose whether a sale was executed under a pre-arranged Rule 10b5-1 plan, and no single filing is a basis for a decision on IPGP. Read these alongside the fundamentals rather than in isolation.

Frequently Asked Questions — IPGP SEC Filings

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Publisher, sources & limitations — September 15, 2026. StrongBuyAnalytics provides navigation and brief excerpts or summaries for educational use. Original filings remain at SEC EDGAR or other displayed source links; StrongBuyAnalytics does not author them. Filing dates are source dates, not publication dates for this page. Coverage can be delayed, incomplete, amended, or unavailable because of SEC/source availability, parsing, caching, or outages. Verify every material statement in the original filing.
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