10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2023

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to .

Commission File Number 001-33155

IPG PHOTONICS CORPORATION

(Exact name of registrant as specified in its charter)

Delaware	04-3444218
(State or other jurisdiction of	(I.R.S. Employer
incorporation or organization)	Identification Number)
377 Simarano Drive, Marlborough, Massachusetts	01752
(Address of principal executive offices)	(Zip code)

Registrant’s telephone number, including area code: (508) 373-1100

Securities registered pursuant to Section 12(b) of the Act: 

Title of each class	Trading Symbol	Name of each exchange on which registered
Common Stock, par value $0.0001 per share	IPGP	The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ☑    No  ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data file required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes  ☑    No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large Accelerated Filer	☑	Accelerated Filer	☐
Non-Accelerated Filer	☐	Smaller Reporting Company	☐
Emerging Growth Company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐ 

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ☐    No  ☑

As of May 1, 2023, there were 47,305,582 shares of the registrant's common stock outstanding.

TABLE OF CONTENTS

 

Part I. Financial Information	1
Item 1. Unaudited Interim Financial Statements	1
Condensed Consolidated Balance Sheets: March 31, 2023 and December 31, 2022	1
Condensed Consolidated Statements of Income: Three Months Ended March 31, 2023 and 2022	2
Condensed Consolidated Statements of Comprehensive Income: Three Months Ended March 31, 2023 and 2022	3
Condensed Consolidated Statements of Cash Flows: Three Months Ended March 31, 2023 and 2022	4
Condensed Consolidated Statements of Equity: Three Months Ended March 31, 2023 and 2022	5
Notes to Condensed Consolidated Financial Statements	6
Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations	17
Item 3. Quantitative and Qualitative Disclosures About Market Risk	26
Item 4. Controls and Procedures	27
Part II. Other Information	28
Item 1. Legal Proceedings	28
Item 1A. Risk Factors	28
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	28
Item 3. Defaults Upon Senior Securities	29
Item 4. Mine Safety Disclosures	29
Item 5. Other Information	29
Item 6. Exhibits	29
Signatures	30

PART I—FINANCIAL INFORMATION

ITEM 1. UNAUDITED INTERIM FINANCIAL STATEMENTS

IPG PHOTONICS CORPORATION

CONDENSED CONSOLIDATED BALANCE SHEETS

	March 31,		December 31,
	2023		2022
	(In thousands, except share and per share data)
ASSETS
Current assets:
Cash and cash equivalents	$	521,137	$	698,209
Short-term investments	548,473		479,374
Accounts receivable, net	236,575		211,347
Inventories	506,149		509,363
Prepaid income taxes	47,054		40,934
Prepaid expenses and other current assets	56,199		47,047
Total current assets	1,915,587		1,986,274
Deferred income taxes, net	59,089		75,152
Goodwill	38,388		38,325
Intangible assets, net	32,104		34,120
Property, plant and equipment, net	594,273		580,561
Other assets	31,715		28,848
Total assets	$	2,671,156	$	2,743,280
LIABILITIES AND EQUITY
Current liabilities:
Current portion of long-term debt	$	15,734	$	16,031
Accounts payable	40,902		46,233
Accrued expenses and other current liabilities	189,786		202,764
Income taxes payable	3,100		9,618
Total current liabilities	249,522		274,646
Other long-term liabilities and deferred income taxes	83,109		83,274
Total liabilities	332,631		357,920
Commitments and contingencies (Note 11)
IPG Photonics Corporation equity:
Common stock, $0.0001 par value, 175,000,000 shares authorized; 56,183,735 and 47,305,551 shares issued and outstanding, respectively, at March 31, 2023; 56,017,672 and 48,138,257 shares issued and outstanding, respectively, at December 31, 2022.	6		6
Treasury stock, at cost, 8,878,184 and 7,879,415 shares held at March 31, 2023 and December 31, 2022, respectively.	(1,051,103)		(938,009)
Additional paid-in capital	957,103		951,371
Retained earnings	2,636,651		2,576,516
Accumulated other comprehensive loss	(204,132)		(204,524)
Total equity	2,338,525		2,385,360
Total liabilities and equity	$	2,671,156	$	2,743,280

See notes to condensed consolidated financial statements.

1

IPG PHOTONICS CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

	Three Months Ended March 31,
	2023		2022
	(In thousands, except per share data)
Net sales	$	347,174	$	369,979
Cost of sales	200,236		198,158
Gross profit	146,938		171,821
Operating expenses:
Sales and marketing	21,088		20,374
Research and development	22,770		33,450
General and administrative	30,128		30,664
Other restructuring charges	181		—
Gain on foreign exchange	(2,655)		(5,810)
Total operating expenses	71,512		78,678
Operating income	75,426		93,143
Other income (expense), net:
Interest income (expense), net	7,533		(70)
Other income (expense), net	331		(236)
Total other income (expense)	7,864		(306)
Income before provision for income taxes	83,290		92,837
Provision for income taxes	23,155		23,209
Net income	60,135		69,628
Less: net income attributable to non-controlling interests	—		56
Net income attributable to IPG Photonics Corporation common stockholders	$	60,135	$	69,572
Net income attributable to IPG Photonics Corporation per common share:
Basic	$	1.26	$	1.32
Diluted	$	1.26	$	1.31
Weighted average common shares outstanding:
Basic	47,542		52,810
Diluted	47,776		53,100

See notes to condensed consolidated financial statements.

2

IPG PHOTONICS CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

	Three Months Ended March 31,
	2023		2022
	(In thousands)
Net income	$	60,135	$	69,628
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments and other	481		(39,326)
Unrealized (loss) gain on derivatives	(89)		213
Total other comprehensive income (loss)	392		(39,113)
Comprehensive income	60,527		30,515
Less: comprehensive income attributable to non-controlling interests	—		361
Comprehensive income attributable to IPG Photonics Corporation	$	60,527	$	30,154

See notes to condensed consolidated financial statements.

3

IPG PHOTONICS CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

	Three Months Ended March 31,
	2023		2022
	(In thousands)
Cash flows from operating activities:
Net income	$	60,135	$	69,628
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	17,889		23,435
Deferred income taxes	16,106		(3,397)
Stock-based compensation	9,576		9,994
Unrealized gain on foreign currency transactions	(1,877)		(2,393)
Other	(4,244)		2,368
Provisions for inventory, warranty and bad debt	17,214		16,142
Changes in assets and liabilities that (used) provided cash, net of acquisitions:
Accounts receivable	(24,642)		2,621
Inventories	(8,989)		(50,951)
Prepaid expenses and other assets	(10,419)		3,052
Accounts payable	(4,600)		(8,448)
Accrued expenses and other liabilities	(19,120)		(31,448)
Income and other taxes payable	(9,749)		(14,180)
Net cash provided by operating activities	37,280		16,423
Cash flows from investing activities:
Purchases of and deposits on property, plant and equipment	(33,404)		(25,177)
Proceeds from sales of property, plant and equipment	1,600		428
Purchases of short-term investments	(343,820)		(475,435)
Proceeds from short-term investments	279,499		505,818
Acquisitions of businesses, net of cash acquired	—		(2,000)
Other	107		(1,164)
Net cash (used in) provided by investing activities	(96,018)		2,470
Cash flows from financing activities:
Principal payments on long-term borrowings	(298)		(964)
Proceeds from issuance of common stock under employee stock option and purchase plans less payments for taxes related to net share settlement of equity awards	(3,844)		(724)
Purchase of treasury stock, at cost	(113,094)		(78,757)
Net cash used in financing activities	(117,236)		(80,445)
Effect of changes in exchange rates on cash and cash equivalents	(1,098)		(5,036)
Net decrease in cash and cash equivalents	(177,072)		(66,588)
Cash and cash equivalents — Beginning of period	698,209		709,105
Cash and cash equivalents — End of period	$	521,137	$	642,517
Supplemental disclosure of cash flow information:
Cash paid for interest	$	525	$	857
Cash paid for income taxes	$	19,203	$	25,423
Non-cash transactions:
Demonstration units transferred from inventory to other assets	$	1,499	$	917
Inventory transferred to machinery and equipment	$	(554)	$	780
Changes in accounts payable related to property, plant and equipment	$	1,109	$	(646)
Leased assets obtained in exchange for new operating lease liabilities	$	457	$	4,229

See notes to condensed consolidated financial statements.

4

IPG PHOTONICS CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY

	Three Months Ended March 31,
	Common Stock			Treasury Stock			Additional Paid-In Capital		Retained Earnings		Accumulated Other Comprehensive (Loss) Income		Non- controlling Interest		Total Stockholders' Equity
(In thousands, except share data)	Shares	Amount		Shares	Amount
Balance, January 1, 2023	48,138,257	$	6	(7,879,415)	$	(938,009)	$	951,371	$	2,576,516	$	(204,524)	$	—	$	2,385,360
Exercise of stock options and vesting of RSUs and PSUs, net of shares withheld for taxes	166,063	—		—	—		(3,844)		—		—		—		(3,844)
Purchased common stock	(998,769)	—		(998,769)	(113,094)		—		—		—		—		(113,094)
Stock-based compensation	—	—		—	—		9,576		—		—		—		9,576
Net income	—	—		—	—		—		60,135		—		—		60,135
Foreign currency translation adjustments and other	—	—		—	—		—		—		481		—		481
Unrealized loss on derivatives, net of tax	—	—		—	—		—		—		(89)		—		(89)
Balance, March 31, 2023	47,305,551	$	6	(8,878,184)	$	(1,051,103)	$	957,103	$	2,636,651	$	(204,132)	$	—	$	2,338,525
Balance, January 1, 2022	53,010,265	$	6	(2,777,981)	$	(438,503)	$	908,423	$	2,466,607	$	(189,951)	$	639	$	2,747,221
Exercise of stock options and vesting of RSUs and PSUs, net of shares withheld for taxes	133,316	—		—	—		(724)		—		—		—		(724)
Purchased common stock	(601,115)	—		(601,115)	(78,757)		—		—		—		—		(78,757)
Stock-based compensation	—	—		—	—		9,994		—		—		—		9,994
Net income	—	—		—	—		—		69,572		—		56		69,628
Foreign currency translation adjustments and other	—	—		—	—		—		—		(39,631)		305		(39,326)
Unrealized gain on derivatives, net of tax	—	—		—	—		—		—		213		—		213
Balance, March 31, 2022	52,542,466	$	6	(3,379,096)	$	(517,260)	$	917,693	$	2,536,179	$	(229,369)	$	1,000	$	2,708,249

See notes to condensed consolidated financial statements.

5

IPG PHOTONICS CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share data)

1. BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation — The accompanying unaudited condensed consolidated financial statements have been prepared by IPG Photonics Corporation, or "IPG", "its" or the "Company". Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC"). The condensed consolidated financial statements include the Company's accounts and those of its subsidiaries. All intercompany balances have been eliminated in consolidation. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto in the Company's Annual Report on Form 10-K for the year ended December 31, 2022.

In the opinion of the Company's management, the financial information for the interim periods presented reflects all adjustments necessary for a fair presentation of the Company's financial position, results of operations and cash flows. The results reported in these condensed consolidated financial statements are not necessarily indicative of results that may be expected for the entire year.

Accounts Receivable and Allowance for Doubtful Accounts — The Company maintains an allowance for doubtful accounts to provide for the estimated amount of accounts receivable that will not be collected. The allowance is based upon an estimate of expected credit losses over the life of outstanding receivables. The estimate involves an assessment of customer creditworthiness, historical payment experience, an assumption of future expected credit losses, and the age of outstanding receivables.

Activity related to the allowance for doubtful accounts was as follows:

	Three Months Ended March 31,
	2023		2022
Balance, beginning of period	$	2,639	$	2,108
Provision for bad debts, net of (recoveries)	(209)		(146)
Uncollectable accounts written off	(50)		(1)
Foreign currency translation	(17)		(24)
Balance, end of period	$	2,363	$	1,937

Comprehensive Income — Comprehensive income includes charges and credits to equity that are not the result of transactions with stockholders. Included within comprehensive income is the cumulative foreign currency translation adjustment and unrealized gains or losses on derivatives. These adjustments are accumulated within the condensed consolidated statements of comprehensive income.

6

IPG PHOTONICS CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS - (Continued)

(In thousands, except share and per share data)

Total components of accumulated other comprehensive loss were as follows:

	Foreign currency translation adjustments and other		Unrealized gain (loss) on derivatives, net of tax		Total
Balance, January 1, 2023	$	(204,676)	$	152	$	(204,524)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments and other, net of tax expense of $35	481		—		481
Unrealized loss on derivatives, net of tax benefit of $26	—		(89)		(89)
Total other comprehensive income (loss)	481		(89)		392
Balance, March 31, 2023	$	(204,195)	$	63	$	(204,132)
Balance, January 1, 2022	$	(189,767)	$	(184)	$	(189,951)
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments and other, net of tax expense of $44	(39,631)		—		(39,631)
Unrealized gain on derivatives, net of tax expense of $66	—		213		213
Total other comprehensive (loss) income	(39,631)		213		(39,418)
Balance, March 31, 2022	$	(229,398)	$	29	$	(229,369)

2. REVENUE FROM CONTRACTS WITH CUSTOMERS

Sales are derived from products for different applications: fiber lasers, diode lasers, systems and accessories for materials processing; fiber lasers, diodes and amplifiers for advanced applications; and fiber lasers, systems and fibers for medical applications.

The following tables represent a disaggregation of revenue from contracts with customers:

	Three Months Ended March 31,
	2023		2022
Sales by Application
Materials processing	$	312,969	$	338,963
Other applications	34,205		31,016
Total	$	347,174	$	369,979

Sales by Product
High Power Continuous Wave ("CW") Lasers	$	154,034	$	167,691
Medium Power CW Lasers	13,839		23,668
Pulsed Lasers	56,147		66,932
Quasi-Continuous Wave ("QCW") Lasers	11,282		12,780
Laser and Non-Laser Systems	41,384		34,597
Other Revenue including Amplifiers, Service, Parts, Accessories and Change in Deferred Revenue	70,488		64,311
Total	$	347,174	$	369,979

7

IPG PHOTONICS CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS - (Continued)

(In thousands, except share and per share data)

	Three Months Ended March 31,
	2023		2022
Sales by Geography
North America	$	76,080	$	77,225
Europe:
Germany	19,833		27,417
Other Europe	80,420		80,000
Asia:
China	101,287		129,748
Japan	21,618		12,886
Other	43,654		38,675
Rest of World	4,282		4,028
Total	$	347,174	$	369,979

Timing of Revenue Recognition
Goods and services transferred at a point in time	$	333,125	$	355,415
Goods and services transferred over time	14,049		14,564
Total	$	347,174	$	369,979

One of the Company's customers accounted for 16% and 14% of the Company's net accounts receivable as of March 31, 2023 and December 31, 2022, respectively.

The Company enters into contracts to sell lasers and spare parts, for which revenue is generally recognized upon shipment or delivery, depending on the terms of the contract. The Company also provides installation services and extended warranties. The Company frequently receives consideration from a customer prior to transferring goods to the customer under the terms of a sales contract. The Company records customer deposits related to these prepayments, which represent a contract liability. The Company also records deferred revenue related to installation services when consideration is received before the services have been performed. The standalone selling price for installation services is determined based on the estimated number of days of service technician time required for installation at standard service rates. The Company recognizes customer deposits and deferred revenue as net sales after control of the goods or services has been transferred to the customer and all revenue recognition criteria are met. The Company bills customers for extended warranties upon entering into the agreement with the customer, resulting in deferred revenue that is recognized over the period of the extended warranty contract. The Company recognizes revenue over time on contracts for the sale of large scale materials processing systems. The timing of customer payments on these contracts generally differs from the timing of revenue recognized. If revenue recognized exceeds customer payments, a contract asset is recorded and if customer payments exceed revenue recognized, a contract liability is recorded. Contract assets are included within prepaid expense and other current assets on the condensed consolidated balance sheets. Contract liabilities are included within accrued expenses and other current liabilities on the condensed consolidated balance sheets. Certain deferred revenues related to extended warranties in excess of one year from the balance sheet date are included within other long-term liabilities and deferred income taxes on the condensed consolidated balance sheets.

8

IPG PHOTONICS CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS - (Continued)

(In thousands, except share and per share data)

The following table reflects the changes in the Company's contract assets and liabilities for the three months ended March 31, 2023 and 2022:

	March 31,		January 1,				March 31,		January 1,
	2023		2023		Change		2022		2022		Change
Contract assets
Contract assets	$	13,806	$	8,620	$	5,186	$	9,842	$	9,345	$	497
Contract liabilities
Contract liabilities - current	82,903		80,068		2,835		94,418		89,659		4,759
Contract liabilities - long-term	3,020		3,142		(122)		2,770		2,691		79

During the three months ended March 31, 2023 and 2022 the Company recognized revenue of $29,012 and $21,024, respectively, that was included in contract liabilities at the beginning of each period.

The following table represents the Company's remaining performance obligations from contracts that are recognized over time as of March 31, 2023:

	Remaining Performance Obligations
	2023 (a)		2024		2025		2026		2027		Thereafter		Total
Revenue expected to be recognized for extended warranty agreements	$	2,656	$	1,570	$	1,017	$	668	$	280	$	29	$	6,220
Revenue to be earned over time from contracts to sell large scale materials processing systems	22,309		5,667		—		—		—		—		27,976
Total	$	24,965	$	7,237	$	1,017	$	668	$	280	$	29	$	34,196

(a) For the nine-month period beginning April 1, 2023.

3. FAIR VALUE MEASUREMENTS

The Company's financial instruments consist of cash equivalents, short-term investments, accounts receivable, accounts payable, drawings on revolving lines of credit, long-term debt and interest rate swaps.

The valuation techniques used to measure fair value are based upon observable and unobservable inputs. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect internal market assumptions. These two types of inputs create the following fair value hierarchy: Level 1, defined as observable inputs such as quoted prices for identical instruments in active markets; Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable; and Level 3, defined as unobservable inputs for which little or no market data exists, therefore requiring an entity to develop its own assumptions. The Company classifies its financial instruments according to the prescribed criteria.

The fair value of money market fund deposits, term deposits, accounts receivable, accounts payable and drawings on revolving lines of credit is reasonably close to their carrying amounts due to the short maturity of most of these instruments or as a result of the competitive market interest rates, which have been negotiated. The fair value of the Company's commercial paper, corporate bonds, U.S. Treasury and agency obligations and term deposits are based on level 2 inputs.

9

IPG PHOTONICS CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS - (Continued)

(In thousands, except share and per share data)

The following table presents fair value information related to the Company's assets and liabilities measured at amortized cost on the condensed consolidated balance sheets with the exception of the interest rate swap, which are measured at fair value:

	Fair Value Measurements at March 31, 2023
	Total		Level 1		Level 2		Level 3
Assets
Cash equivalents:
Money market fund deposits	$	117,102	$	117,102	$	—	$	—
Commercial paper	74,846		—		74,846		—
Term deposits	27,061		—		27,061		—
Short-term investments:
Commercial paper	397,022		—		397,022		—
Corporate bonds	76,530		—		76,530		—
U.S. Treasury and agency obligations	71,432		—		71,432		—
Term deposits	3,009		—		3,009		—
Other assets:
Interest rate swap	83		—		83		—
Total assets	$	767,085	$	117,102	$	649,983	$	—
Liabilities
Term debt	$	15,734	$	—	$	15,734	$	—
Total liabilities	$	15,734	$	—	$	15,734	$	—

	Fair Value Measurements at December 31, 2022
	Total		Level 1		Level 2		Level 3
Assets
Cash equivalents:
Money market fund deposits	$	195,654	$	195,654	$	—	$	—
Commercial paper	94,661		—		94,661		—
Term deposits	68,827		—		68,827		—
Corporate bonds	1,497		—		1,497		—
Short-term investments:
Commercial paper	363,991		—		363,991		—
Corporate bonds	65,022		—		65,022		—
U.S. Treasury and agency obligations	39,611		—		39,611		—
Term deposits	10,113		—		10,113		—
Other assets:
Interest rate swaps	198		—		198		—
Total assets	$	839,574	$	195,654	$	643,920	$	—
Liabilities
Term debt	$	16,031	$	—	$	16,031	$	—
Total liabilities	$	16,031	$	—	$	16,031	$	—

Short-term investments consist of liquid investments with original maturities of greater than three months but less than one year and are recorded at amortized cost. There were no impairments for the investments considered held-to-maturity during the quarters ended March 31, 2023 and 2022. There were no current expected credit loss allowances for the investments considered held-to-maturity at March 31, 2023 and 2022. The Company holds highly-rated held-to-maturity instruments that are within one year of maturity.

10

IPG PHOTONICS CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS - (Continued)

(In thousands, except share and per share data)

The following table presents the effective maturity dates of debt investments, which are held-to-maturity:

	March 31, 2023				December 31, 2022
	Book Value		Fair Value		Book Value		Fair Value
Investment maturity
Less than 1 year	$	548,473	$	547,993	$	479,374	$	478,737

The Company entered into an interest rate swap that is designated as a cash flow hedge associated with a long-term note issued during the second quarter of 2016 that will terminate with the long-term note in May 2023. The fair value at March 31, 2023 for the interest rate swap considered pricing models whose inputs are observable for the securities held by the Company.

At March 31, 2023 and December 31, 2022, the Company's long-term note is a variable rate note. The carrying value of the note approximates the estimated fair value of $15,734 and $16,031, respectively. The long-term note was reported at amortized cost on the condensed consolidated balance sheets and was classified within Level 2 of the fair value hierarchy.

4. INVENTORIES

Inventories consist of the following:

	March 31,		December 31,
	2023		2022
Components and raw materials	$	308,357	$	322,506
Work-in-process	39,603		18,911
Finished goods	158,189		167,946
Total	$	506,149	$	509,363

The Company recorded inventory provisions totaling $12,096 and $10,781 for the three months ended March 31, 2023 and 2022, respectively. These provisions relate to the recoverability of the value of inventories due to technological changes and excess quantities. These provisions are reported as a reduction to components and raw materials, work-in-process and finished goods.

5. RESTRUCTURING

In the fourth quarter of 2022, the Company implemented a restructuring program at its Russian subsidiary. The program resulted in personnel-related restructuring charges of $181 for the three months ended March 31, 2023. All personnel-related restructuring charges are expected to be paid within 12 months. There was no restructuring related activity for the three months ended March 31, 2022.

The restructuring accrual was included in accrued expenses and other current liabilities in the Company's condensed consolidated balance sheets. Activity related to the restructuring accrual was as follows:

	Three Months Ended March 31,
	2023
Balance, beginning of period	$	4,869
Charges	181
Cash payments	(1,758)
Foreign exchange adjustment	(367)
Balance, end of period	$	2,925

11

IPG PHOTONICS CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS - (Continued)

(In thousands, except share and per share data)

6. GOODWILL AND INTANGIBLES

The following table sets forth the changes in the carrying amount of goodwill:

	Three Months Ended March 31,
	2023		2022
Balance, beginning of period	$	38,325	$	38,609
Goodwill arising from business combinations	—		1,000
Foreign exchange adjustment	63		132
Balance, end of period	$	38,388	$	39,741

Intangible assets, subject to amortization, consisted of the following:

	March 31, 2023							December 31, 2022
	Gross Carrying Amount		Accumulated Amortization		Net  Carrying Amount		Weighted- Average  Lives	Gross Carrying Amount		Accumulated Amortization		Net  Carrying Amount		Weighted- Average  Lives
Customer relationships	$	48,186	$	(22,816)	$	25,370	11 years	$	48,155	$	(21,734)	$	26,421	11 years
Technology, trademark and trade name	30,222		(23,892)		6,330		7 years	30,360		(23,189)		7,171		7 years
Production know-how	9,133		(8,919)		214		7 years	9,109		(8,818)		291		7 years
Patents	8,034		(7,844)		190		8 years	8,034		(7,797)		237		8 years
Total	$	95,575	$	(63,471)	$	32,104		$	95,658	$	(61,538)	$	34,120

Amortization expense for the three months ended March 31, 2023 and 2022 was $2,021 and $3,021, respectively. The estimated future amortization expense for intangibles for the remainder of 2023 and subsequent years is as follows:

2023 (a)		2024		2025		2026		2027		Thereafter		Total
$	5,873	$	5,554	$	4,977	$	4,216	$	4,004	$	7,480	$	32,104

(a) For the nine-month period beginning April 1, 2023.

12

IPG PHOTONICS CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS - (Continued)

(In thousands, except share and per share data)

7. OTHER LIABILITIES

Accrued expenses and other current liabilities consist of the following:

	March 31,		December 31,
	2023		2022
Contract liabilities	$	82,903	$	80,068
Accrued compensation	60,311		78,251
Current portion of accrued warranty	28,813		28,504
Short-term lease liabilities	5,037		5,234
Other	12,722		10,707
Total	$	189,786	$	202,764

Other long-term liabilities and deferred income taxes consist of the following:

	March 31,		December 31,
	2023		2022
Accrued warranty	$	25,026	$	24,358
Transition tax related to 2017 U.S. tax reform act	19,874		19,874
Long-term lease liabilities	15,869		16,787
Unrealized tax benefits	15,805		15,841
Deferred income taxes	1,477		1,469
Other	5,058		4,945
Total	$	83,109	$	83,274

8. PRODUCT WARRANTIES

The Company typically provides one to five years parts and service warranties on lasers, laser and non-laser systems, and amplifiers. Most of the Company's sales offices provide support to customers in their respective geographic areas. Warranty reserves have generally been sufficient to cover product warranty repair and replacement costs.

Activity related to the warranty accrual was as follows:

	Three Months Ended March 31,
	2023		2022
Balance, beginning of period	$	52,862	$	49,864
Provision for warranty accrual	4,375		5,071
Warranty claims	(3,798)		(3,707)
Foreign currency translation	400		(882)
Balance, end of period	$	53,839	$	50,346

Accrued warranty reported in the accompanying condensed consolidated financial statements as of March 31, 2023 and December 31, 2022 consist of $28,813 and $28,504 in accrued expenses and other current liabilities, respectively, and $25,026 and $24,358 in other long-term liabilities and deferred income taxes, respectively.

13

IPG PHOTONICS CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS - (Continued)

(In thousands, except share and per share data)

9. FINANCING ARRANGEMENTS

The Company's borrowings under existing financing arrangement consists of the following:

	March 31,		December 31,
	2023		2022
Current portion of long-term debt	$	15,734	$	16,031

Term Debt:

At March 31, 2023, the Company has an unsecured long-term note with an outstanding principal balance of $15,734, all of which is current. The interest on this unsecured long-term note is variable at 1.20% above LIBOR and is fixed using an interest rate swap at 2.85% per annum. The unsecured long-term note matures in May 2023, at which time the outstanding principal balance will be $15,438.

Revolving Line of Credit Facilities:

The Company maintains a $75,000 U.S. revolving line of credit and a €50,000 ($54,385) line-of-credit in Germany, both of which are available to certain foreign subsidiaries and allow for borrowings in the local currencies of those subsidiaries. The Company also maintains a €1,500 ($1,632) Italian overdraft facility. At March 31, 2023 and December 31, 2022, there were no amounts drawn on the U.S. line-of-credit, and there were $2,460 and $2,396, respectively, of guarantees issued against the facility, which reduce the amount of the facility available to draw. At March 31, 2023 and December 31, 2022, there were no amounts drawn on the euro line-of-credit, and there were $1,663 and $1,737, respectively, of guarantees issued against those facilities, which reduce the amount available to draw. At March 31, 2023 and December 31, 2022, there were no amounts drawn on the euro overdraft facility. After providing for the guarantees used, the total unused lines-of-credit and overdraft facilities are $126,894 at March 31, 2023.

10. DERIVATIVE FINANCIAL INSTRUMENTS

The Company's only outstanding derivative financial instrument is an interest rate swap that is classified as a cash flow hedge of its variable rate debt. The fair value amounts in the condensed consolidated balance sheets were:

	March 31,		December 31,
	2023		2022
Notional amounts (1)	$	15,734	$	16,031
Fair values:
Other assets	$	83	$	198

(1) Notional amounts represent the gross contract/notional amount of the derivatives outstanding.

The derivative gains and losses in the condensed consolidated financial statements related to the Company's current and previous interest rate swap contracts were as follows:

	Three Months Ended March 31,
	2023		2022
Effective portion recognized in other comprehensive income, pretax:
Interest rate swap	$	(115)	$	279

11. COMMITMENTS AND CONTINGENCIES

From time to time, the Company may be involved in legal disputes and other proceedings in the ordinary course of its business. These matters may include allegations of infringement of intellectual property, commercial disputes and employment matters. As of March 31, 2023 and through the filing date of these condensed consolidated financial statements, the Company is aware of no ongoing legal proceedings that management estimates could have a material effect on the Company's Consolidated Financial Statements.

The Company has submitted a limited number of voluntary self-disclosures regarding compliance with export control laws and regulations to the Bureau of Industry and Security of the U.S. Department of Commerce. In October 2021, the U.S.

14

IPG PHOTONICS CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS - (Continued)

(In thousands, except share and per share data)

Department of Justice ("DOJ") advised the Company it was conducting an investigation into certain shipments of equipment. The Company believes the DOJ's investigation has concluded however other agencies of the Federal government continue an investigation regarding our export practices. At this time, the Company is not able to conclude whether it is probable that the Federal government will assert a claim or assessment against the Company, nor can the Company estimate expenses that the Company may incur as a result of the investigation.

12. INCOME TAXES

The effective tax rates were 27.8% and 25.0% for the three months ended March 31, 2023 and 2022, respectively. There was a net discrete tax detriment of $1,972 for the three months ended March 31, 2023 and a net discrete tax benefit of $252 for the three months ended March 31, 2022. The detriment in 2023 relates primarily to the tax impact from tax deductions for stock-based compensation that were less than the compensation expense recognized for books. There was a similar detriment for stock-based compensation in 2022 but in that year, this item was offset by reductions in tax liability as a result of changes in position agreed to with tax authorities for prior year audits.

The Company accounts for its uncertain tax positions in accordance with the accounting standards for income taxes. The Company classifies interest and penalties related to unrecognized tax benefits as a component of the provision for income taxes. The following is a summary of the activity of the Company’s unrecognized tax benefits for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31,
	2023		2022
Balance, beginning of period	$	15,841	$	19,209
Change in prior period positions	42		(249)
Additions for tax positions in current period	—		500
Foreign currency translation	(78)		(541)
Balance, end of period	$	15,805	$	18,919

The liability for uncertain tax benefits is included in other long-term liabilities and deferred income taxes at March 31, 2023 and December 31, 2022. Substantially all of the liability for uncertain tax benefits related to various federal, state and foreign income tax matters would benefit the Company's effective tax rate, if recognized.

13. NET INCOME ATTRIBUTABLE TO IPG PHOTONICS CORPORATION PER COMMON SHARE

The following table sets forth the computation of diluted net income attributable to IPG Photonics Corporation per common share following the treasury stock method:

	Three Months Ended March 31,
	2023		2022
Net income attributable to IPG Photonics Corporation common stockholders	$	60,135	$	69,572
Basic weighted average common shares	47,542,071		52,809,654
Dilutive effect of common stock equivalents	234,050		289,885
Diluted weighted average common shares	47,776,121		53,099,539
Basic net income attributable to IPG Photonics Corporation per common share	$	1.26	$	1.32
Diluted net income attributable to IPG Photonics Corporation per common share	$	1.26	$	1.31

The computation of diluted weighted average common shares excludes common stock equivalents including non-qualified stock options, performance stock units ("PSUs"), restricted stock units ("RSUs") and employee stock purchase plan

15

IPG PHOTONICS CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS - (Continued)

(In thousands, except share and per share data)

("ESPP") because the effect of including them would be anti-dilutive. The weighted average anti-dilutive shares outstanding for the three months ended March 31, 2023 and 2022 were as follows:

	Three Months Ended March 31,
	2023	2022
Non-qualified stock options	543,408	472,699
Restricted stock units	346,729	205,272
Performance stock units	30,860	31,560
Total weighed average anti-dilutive shares outstanding	920,997	709,531

For the three months ended March 31, 2023, the Company repurchased 998,769 shares of common stock under a $300,000 purchase plan approved by the Board of Directors in August 2022 at a weighted average price of $112.29 per share in the open market. The impact on the reduction of weighted average shares for the three months ended March 31, 2023 was 661,816 shares. As of March 31, 2023, the Company has completed all of the repurchases under this authorization.

14. SUBSEQUENT EVENTS

On May 2, 2023, the Company announced that its Board of Directors has authorized the purchase of up to $200,000 of IPG common stock. Share repurchases may be made periodically in open-market transactions, and are subject to market conditions, legal requirements and other factors. The share repurchase program authorization does not obligate the Company to repurchase any dollar amount or number of its shares, and repurchases may be commenced or suspended from time to time without prior notice.

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ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

You should read the following discussion in conjunction with our condensed consolidated financial statements and related notes included elsewhere in this Quarterly Report on Form 10-Q. This discussion contains forward looking statements that are based on management's current expectations, estimates and projections about our business and operations. Our actual results may differ materially from those currently anticipated and expressed in such forward-looking statements. See "Cautionary Statement Regarding Forward-Looking Statements."

Overview

We develop, manufacture and sell high-performance fiber lasers and diode lasers that are used for diverse applications, primarily in materials processing. We also manufacture and sell complementary products used with our lasers including optical delivery cables, fiber couplers, beam switches, optical processing heads, in-line sensors and chillers. In addition, we offer laser-based and non-laser based systems for certain markets and applications. Our portfolio of laser solutions is used in materials processing, medical and advanced applications. We sell our products globally to original equipment manufacturers ("OEMs"), system integrators and end users. We market our products internationally, primarily through our direct sales force. Our major manufacturing facilities are located in the United States, Germany, Russia and Belarus. We have sales and service offices and applications laboratories worldwide.

We are vertically integrated such that we design and manufacture most of the key components used in our finished products, from semiconductor diodes to optical fiber preforms, finished fiber lasers and complementary products. Our vertically integrated operations allow us to reduce manufacturing costs, control quality, rapidly develop and integrate advanced products and protect our proprietary technology.

Factors and Trends That Affect Our Operations and Financial Results

In reading our financial statements, you should be aware of the following factors and trends that our management believes are important in understanding our financial performance.

Russia-Ukraine Conflict. The Russia-Ukraine conflict and the sanctions imposed in response to this crisis have significantly curtailed our ability to use our manufacturing operations in Russia to supply other IPG operations outside of Russia. The conflict and the risk of additional sanctions has also increased the levels of uncertainty and risks facing the Company due to our manufacturing operations in Belarus. Since the start of the conflict, we have been executing on plans to reduce our reliance on our Russia and Belarus operations by adding capacity in other countries, increasing inventories worldwide and qualifying third-party suppliers. In 2022, we began hiring and training additional employees, expanding capacity for increased production, and running additional shifts in the U.S. and Germany and adding additional manufacturing capacity in Italy and Poland.

In October 2022, the European Union introduced new sanctions that restrict our ability to ship and receive components from our factory in Russia to the E.U. beginning in January 2023. We believe the contingency measures outlined above that we have already put in place mitigate substantially all the effects of the recent sanctions on our ability to supply finished products to customers. If we have not fully mitigated the effect of these and other trade restrictions, or if new sanctions are adopted, our ability to supply finished products to customers could be impacted. Although we believe our contingency plans mitigate the risk of our ability to supply customers with finished product, these plans require additional investments in facilities outside of Russia and Belarus in the near term as well as additional ongoing operating costs, primarily associated with the higher cost of labor outside of Russia and Belarus. While we have sufficient financial resources to make these investments and expenditures, our gross margins and financial results have been and will be adversely impacted by increased operating costs associated with these transitions. Over time, we intend to mitigate some of these increases by producing components in countries with lower labor costs than the United States and Germany, with ongoing product expense reduction initiatives, higher productivity from automation, improved yields and product specifications. We are also continuing to review our operations in Russia and Belarus. For additional information regarding the risks and potential impacts of the Russia-Ukraine conflict, see “Risk Factors – The ongoing conflict between Russia and Ukraine may adversely affect our business and results of operations” in Item 1A of Part II of Form 10-K for the year ended December 31, 2022.

Sales to third-parties in Russia were approximately 3% of our revenue in the first quarter of 2023 and for the full year ended December 31, 2022. Our Russian subsidiary has historically supplied finished goods for our China market. Sanctions have limited our ability to provide components to Russia for the completion of finished lasers. Although our Russian operation has built safety stock in anticipation of this situation, we are also producing more finished lasers for China at other IPG locations. The total value of product shipped to the Chinese market from Russia was approximately $4.6 million for the three months ended March 31, 2023 and $62 million for the full year ended December 31, 2022.

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Given the sanctions introduced by the European Union in October 2022, which imposed further restrictions on our Russian operations, we evaluated the recoverability of certain assets located in Russia during the fourth quarter of 2022 and incurred impairment charges that reduced the value of fixed assets, inventory and other current assets. We also incurred restructuring charges in 2022. At March 31, 2023, we had working capital excluding cash and cash equivalents of $22.2 million in Russia of which $22.4 million is inventory. We had $67.5 million cash and cash equivalents in Russia. The net asset value of our long lived assets was $2.8 million. In addition to the impairment charges referenced above, the net value of assets in Russia has been reduced by $125.9 million due to the cumulative translation affect of the Russian ruble compared to the U.S. dollar, which is included in the accumulated comprehensive loss component of stockholders' equity. Depending upon the outcome of our review of our Russian operations, the cumulative translation affect of foreign exchange fluctuations that is currently included in accumulated comprehensive loss on our consolidated balance sheets may be charged to our consolidated statements of income.

We continue to manufacture laser cabinets and other mechanical components in Belarus. Trade sanctions to date have not significantly affected our ability to supply these items from Belarus to other manufacturing locations. The value of the long lived assets in Belarus was $37.5 million at March 31, 2023, and we had working capital excluding cash of $5.0 million in Belarus of which $4.5 million is inventory. In addition, we had $4.0 million cash in Belarus.

COVID-19. Global demand trends have been impacted by the ongoing COVID-19 pandemic. While business conditions generally improved from the severe contraction experienced in 2020, it is difficult to predict whether conditions could change if there are additional restrictions imposed as a result of a resurgence in COVID-19 infections. To date, we have been able to accommodate these changes to our business operations and continue to meet customer demand. If guidelines or mandates from relevant authorities becomes more restrictive due to a resurgence of COVID-19 in a particular region, the effect on our operations could be more significant.

Supply Chain. We and our customers are experiencing increased lead times and costs for certain components purchased from third party suppliers; particularly electronic components. We, our customers and our suppliers continue to face constraints related to supply chain and logistics, including availability of capacity, materials, air cargo space, sea containers and higher freight rates. While supply chain and logistics constraints have moderated, they have not yet fully returned to pre-pandemic conditions. Supply chain constraints have not significantly affected our business but they have moderately increased our freight costs, caused us to carry higher levels of safety stock for certain inventory items, increased the cost of certain electronic components and caused delays in recognizing revenue for certain custom processing systems in our Genesis business due to delays in receiving components.

Net sales. Our net sales have historically fluctuated from quarter to quarter. The increase or decrease in sales from a prior quarter can be affected by the timing of orders received from customers, the timing of shipments, the mix of OEM orders and one-time orders for products with large purchase prices, competitive pressures, acquisitions, economic and political conditions in a certain country or region and seasonal factors such as the purchasing patterns and levels of activity throughout the year in the regions where we operate. Net sales can be affected by the time taken to qualify our products for use in new applications in the end markets that we serve. Our sales cycle varies substantially, ranging from a period of a few weeks to as long as one year or more, but is typically several months. The adoption of our products by a new customer or qualification in a new application can lead to an increase in net sales for a period, which may then slow until we penetrate new markets or obtain new customers. Foreign exchange rates also affect our net sales, due to changes in the U.S. dollar value of sales made in foreign currencies.

Our business depends substantially upon capital expenditures by end users, particularly by manufacturers using our products for materials processing, which includes general manufacturing, automotive including electric vehicles ("EV"), other transportation, aerospace, heavy industry, consumer, semiconductor and electronics. Approximately 90% of our revenues for both the first quarter of 2023 and the full 2022 fiscal year were from customers using our products for materials processing. Although applications within materials processing are broad, the capital equipment market in general is cyclical and historically has experienced sudden and severe downturns. For the foreseeable future, our operations will continue to depend upon capital expenditures by end users of materials processing equipment and will be subject to the broader fluctuations of capital equipment spending.

In response to inflation, some global central banks are adopting less accommodative monetary policy and have or expect to increase benchmark interest rates. An increase in interest rates could impact global demand and/or could lead to a recession that may reduce the demand for our products. In addition, an increase in interest rates would increase the cost of equipment financed with leases or debt.

In recent years, our net sales and margins have been negatively impacted by tariffs and trade policy. New tariffs and other changes in U.S. trade policy could trigger retaliatory actions by affected countries, and certain foreign governments.

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We are also susceptible to global or regional disruptions such as political instability, geopolitical conflicts, acts of terrorism, significant fluctuations in currency values, natural disasters, macroeconomic concerns and the impact of the COVID-19 outbreak that affect the level of capital expenditures or global commerce. With respect to the COVID-19 outbreak specifically, the possible affect over the longer term remains uncertain and dependent on future developments that cannot be accurately predicted at this time, such as the severity and transmission rate of COVID-19 or new variants, the extent and effectiveness of containment actions taken, the approval, effectiveness, timing and widespread vaccination of the global population, and the impact of these and other factors on our customer base and general commercial activity.

The average selling prices of our products generally decrease as the products mature. These decreases result from factors such as increased competition, decreased manufacturing costs and increased unit volumes. We may also reduce selling prices in order to penetrate new markets and applications. Furthermore, we may negotiate discounted selling prices from time to time with certain customers that place high unit-volume orders.

The secular shift to fiber laser technology in large materials processing applications, such as cutting applications, had a positive effect on our sales trends in the past such that our sales trends were often better than other capital equipment manufacturers in both positive and negative economic cycles. As the secular shift to fiber laser technology matures in such applications, our sales trends are more susceptible to economic cycles which affect other capital equipment manufacturers broadly and the machine tool and industrial laser industries more specifically.

Gross margin. Our total gross margin in any period can be significantly affected by a number of factors, including net sales, production volumes, competitive factors, product mix, and by other factors such as changes in foreign exchange rates relative to the U.S. dollar, tariffs and shipping costs. Many of these factors are not under our control. The following are examples of factors affecting gross margin:

•As our products mature, we can experience additional competition which tends to decrease average selling prices and affects gross margin;

•Our gross margin can be significantly affected by product mix. Within each of our product categories, the gross margin is generally higher for devices with greater average power. These higher power products often have better performance, more difficult specifications to attain and fewer competing products in the marketplace;

•Higher power lasers also use a greater number of optical components, improving absorption of fixed overhead costs and enabling economies of scale in manufacturing;

•The gross margin for certain specialty products may be higher because there are fewer or sometimes no equivalent competing products;

•Customers that purchase devices in greater unit volumes generally are provided lower prices per device than customers that purchase fewer units. In general, lower selling prices to high unit volume customers reduce gross margin although this may be partially offset by improved absorption of fixed overhead costs associated with larger product volumes, which drive economies of scale;

•Gross margin on systems can be lower than gross margin for our laser, depending on the configuration, volume and competitive forces, among other factors;

•Persistent inflation leading to increases in average manufacturing salaries as well as an increase in the purchase price of components including, but not limited to, electronic components and metal parts could negatively impact gross margin if we are not able to pass those increases on to customers by increasing the selling price of our products; and finally,

•Changes in relative exchange rates between currencies we receive when selling our products and currencies we use to pay our manufacturing expenses.

We expect that some new technologies, products and systems will have returns above our cost of capital but may have gross margins below our corporate average. If we are able to develop opportunities that are significant in size, competitively advantageous or leverage our existing technology base and leadership, our current gross margin levels may not be maintained. Instead, we aim to deliver industry-leading levels of gross margins by growing sales, by taking market share in existing markets, or by developing new applications and markets we address, by reducing the cost of our products and by optimizing the efficiency of our manufacturing operations.

A high proportion of our costs is fixed so costs are generally difficult to adjust or may take time to adjust in response to changes in demand. In addition, our fixed costs increase as we expand our capacity. If we expand capacity faster than is

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required by sales growth, gross margins could be negatively affected. Gross margins generally decline if production volumes are lower as a result of a decrease in sales or a reduction in inventory because the absorption of fixed manufacturing costs will be reduced. Gross margins generally improve when the opposite occurs. If both sales and inventory decrease in the same period, the decline in gross margin may be greater if we cannot reduce fixed costs or choose not to reduce fixed costs to match the decrease in the level of production. If we experience a decline in sales that reduces absorption of our fixed costs, or if we have production issues, our gross margins will be negatively affected.

We also regularly review our inventory for items that are slow-moving, have been rendered obsolete or are determined to be excess. Any provision for such slow-moving, obsolete or excess inventory affects our gross margins. For example, we recorded provisions for slow-moving, obsolete or excess inventory totaling $12.1 million and $10.8 million for the three months ended March 31, 2023 and 2022, respectively.

Selling and general and administrative expenses. In the past, we invested in selling and general and administrative costs in order to support continued growth in the Company. As the secular shift to fiber laser technology matures, our sales growth becomes more susceptible to the cyclical trends typical of capital equipment manufacturers. Accordingly, our future management of and investments in selling and general and administrative expenses will also be influenced by these trends, although we may still invest in selling or general and administrative functions to support certain initiatives even in economic down cycles. Certain general and administrative expenses are not related to the level of sales and may vary quarter to quarter based primarily upon the level of acquisitions, divestitures and litigation.

Research and development expenses. We plan to continue to invest in research and development to improve our existing components and products and develop new components, products, systems and applications technology. We believe that these investments will sustain our position as a leader in the fiber laser industry and will support development of new products that can address new markets and growth opportunities. The amount of research and development expense we incur may vary from period to period.

Goodwill and long-lived assets impairments. We review our intangible assets and property, plant and equipment for impairment when events or changes in circumstances indicate the carrying value may not be recoverable. Goodwill is required to be tested for impairment at least annually. Negative industry or economic trends, including reduced estimates of future cash flows, disruptions to our business, slower growth rates, lack of growth in our relevant business units, differences in the estimated product acceptance rates, or market prices below the carrying value of long-lived assets evaluated for sale could lead to impairment charges against our long-lived assets, including goodwill and other intangible assets. We are evaluating certain U.S.-based assets for sale, including land and buildings. If the estimated sales value of any of these assets is below carrying value, then we may need to record an asset impairment charge when they are classified as held-for-sale. We have long-lived assets in Belarus with a carrying value of $37.5 million. If sanctions increase or if the geopolitical situation changes such that we can no longer use Belarus as a source of supply for our laser cabinets and other mechanical components, we may need to evaluate those assets for impairment, which may result in impairment charges.

Our valuation methodology for assessing impairment requires management to make significant judgments and assumptions based on historical experience and to rely heavily on projections of future operating performance at many points during the analysis. Also, the process of evaluating the potential impairment of goodwill is subjective. We operate in a highly competitive environment and projections of future operating results and cash flows may vary significantly from actual results. If our analysis indicates potential impairment to goodwill in one or more of our reporting units, we may be required to record charges to earnings in our financial statements, which could negatively affect our results of operations.

Foreign exchange. Because we are a U.S.-based company doing business globally, we have both translational and transactional exposure to fluctuations in foreign currency exchange rates. Changes in the relative exchange rate between the U.S. dollar and the foreign currencies in which our subsidiaries operate directly affects our sales, costs and earnings. Differences in the relative exchange rates between where we sell our products and where we incur manufacturing and other operating costs (primarily in the U.S., Germany, Russia and Belarus) also affects our costs and earnings. Certain currencies experiencing significant exchange rate fluctuations like the euro, the Russian ruble, and the Chinese yuan have had and could have an additional significant impact on our sales, costs and earnings. For the quarter ended March 31, 2023, the foreign exchange gain created by depreciation of the Russian ruble and appreciation of the Chinese yuan was partially offset by a foreign exchange loss created by the appreciation of the euro as compared to the U.S. dollar. This is because our European and Russian subsidiaries have certain net assets denominated in U.S. dollars, and our Chinese subsidiary has certain net liabilities denominated in U.S. dollars. Our ability to adjust the foreign currency selling prices of products in response to changes in exchange rates is limited and may not offset the impact of the changes in exchange rates on the translated value of sales or costs. In addition, if we increase the selling price of our products in local currencies, this could have a negative impact on the demand for our products.

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Major customers. While we have historically depended on a few customers for a large percentage of our annual net sales, the composition of this group can change from period to period. Net sales derived from our five largest customers as a percentage of our net sales was 19% for the three months ended March 31, 2023 and 15%, and 19% for the full years 2022 and 2021, respectively. One of our customers accounted for 16% and 14% of our net accounts receivable at March 31, 2023 and December 31, 2022, respectively. We seek to add new customers and to expand our relationships with existing customers. We anticipate that the composition of our significant customers will continue to change. We generally do not enter into agreements with our customers obligating them to purchase a fixed number or large volume of our products. If any of our significant customers substantially reduced their purchases from us, our results would be adversely affected.

Results of Operations for the Three Months Ended March 31, 2023 Compared to the Three Months Ended March 31, 2022

Net sales. Net sales decreased by $22.8 million, or 6.2%, to $347.2 million for the three months ended March 31, 2023 from $370.0 million for the three months ended March 31, 2022.

The table below sets forth sales by application: 

	Three Months Ended March 31,
	2023				2022				Change
	(In thousands, except for percentages)
Sales by Application			% of Total				% of Total
Materials processing	$	312,969	90.1	%	$	338,963	91.6	%	$	(25,994)	(7.7)	%
Other applications	34,205		9.9	%	31,016		8.4	%	3,189		10.3	%
Total	$	347,174	100.0	%	$	369,979	100.0	%	$	(22,805)	(6.2)	%

The table below sets forth sales by type of product and other revenue:

	Three Months Ended March 31,
	2023				2022				Change
	(In thousands, except for percentages)
Sales by Product			% of Total				% of Total
High Power Continuous Wave ("CW") Lasers	$	154,034	44.4	%	$	167,691	45.3	%	$	(13,657)	(8.1)	%
Medium Power CW Lasers	13,839		4.0	%	23,668		6.4	%	(9,829)		(41.5)	%
Pulsed Lasers	56,147		16.2	%	66,932		18.1	%	(10,785)		(16.1)	%
Quasi-Continuous Wave ("QCW") Lasers	11,282		3.2	%	12,780		3.5	%	(1,498)		(11.7)	%
Laser and Non-Laser Systems	41,384		11.9	%	34,597		9.4	%	6,787		19.6	%
Other Revenue including Amplifiers, Service, Parts, Accessories and Change in Deferred Revenue	70,488		20.3	%	64,311		17.3	%	6,177		9.6	%
Total	$	347,174	100.0	%	$	369,979	100.0	%	$	(22,805)	(6.2)	%

Materials processing

Sales for materials processing applications decreased due to lower sales of high power CW lasers, pulsed lasers, medium power CW lasers and QCW lasers, partially offset by higher sales of laser and non-laser systems and other laser products and services.

•High power CW laser sales decreased due to lower sales for cutting applications, partially offset by an increase in sales for welding applications. Within cutting applications, the decrease in sales was attributable to softer demand in China. The increase in sales of high power CW lasers used in welding applications was driven by higher sales supporting e-mobility applications, including electric vehicles, battery manufacturing and electric motors.

•Medium power CW laser sales decreased due to lower demand for welding and cutting applications.

•Pulsed laser sales, including high power pulsed lasers, decreased due to lower sales for cutting, marking and engraving applications, partially offset by an increase in sales for green pulsed lasers used for solar cell manufacturing and cleaning and stripping applications.

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•QCW laser sales decreased due to lower demand in fine processing for consumer electronics applications.

•Laser and non-laser systems sales increased due to higher demand for LightWELD and increased revenue in laser-based systems.

Other Applications

Sales from other applications increased due to increased demand for lasers used in medical procedures and advanced applications, partially offset by a decrease in telecom sales due to the divestiture of the telecommunications transmission product line in the third quarter of 2022.

Cost of sales and gross margin. Cost of sales increased by $2.0 million, or 1.0%, to $200.2 million for the three months ended March 31, 2023 from $198.2 million for the three months ended March 31, 2022. Our gross margin decreased to 42.3% for the three months ended March 31, 2023 from 46.4% for the three months ended March 31, 2022. The decrease in gross margin was driven by an increase in costs of products sold from inventory, an increase in manufacturing costs, an increase in provisions for excess and obsolete inventory and an increase in shipping costs and tariffs as a percentage of sales, partially offset by higher absorption of manufacturing expenses as a percentage of sales. The strong U.S. dollar has negatively affected gross margin because a disproportionate amount of our manufacturing costs are denominated in U.S. dollars as compared to our sales which are predominantly in foreign currency.

Sales and marketing expense. Sales and marketing expense increased by $0.7 million, or 3.4%, to $21.1 million for the three months ended March 31, 2023 compared with $20.4 million for the three months ended March 31, 2022. The increase is due to personnel and related costs, off set by lower trade fairs and exhibits and lower depreciation and amortization expenses. As a percentage of sales, sales and marketing expense increased to 6.1% from 5.5% for the three months ended March 31, 2023 and 2022, respectively.

Research and development expense. Research and development expense decreased by $10.7 million, or 31.9%, to $22.8 million for the three months ended March 31, 2023, compared to $33.5 million for the three months ended March 31, 2022. Decreases in personnel and related costs, expense for materials used for research and development projects and amortization of production licenses are primarily the result of the divestiture of our telecommunications transmission product line in the third quarter of 2022. Further, depreciation expenses decreases are primarily the result of the Russia long-lived asset impairment in 2022. As a percentage of sales, research and development expense decreased to 6.6% for the three months ended March 31, 2023 from 9.1% for the three months ended March 31, 2022.

General and administrative expense. General and administrative expense decreased by $0.6 million, or 2.0%, to $30.1 million for the three months ended March 31, 2023 from $30.7 million for the three months ended March 31, 2022. This change was primarily a result of lower depreciation expenses which were driven by impairment of Russian long-lived assets and the sale of our corporate aircraft in the fourth quarter of 2022, partially offset by increases in personnel and related costs. As a percentage of sales, general and administrative expense increased to 8.7% from 8.3% for the three months ended March 31, 2023 and 2022, respectively.

Effect of exchange rates on net sales, gross profit and operating expenses. We estimate that, if exchange rates relative to the U.S. dollar had been the same as one year ago, which were on average euro 0.89, Russian ruble 86, Japanese yen 116 and Chinese yuan 6.35, respectively, we estimate that net sales for the three months ended March 31, 2023 would have been $15.3 million higher, gross profit would have been $8.2 million higher and total operating expenses would have been $0.2 million higher.

Other restructuring charges Other restructuring charges of $0.2 million were related to personnel related restructuring charges and other post employment benefits in Russia. Refer to above "Factors and Trends That Affect Our Operations and Financial Results", section Russia-Ukraine Conflict for further detail.

Gain on foreign exchange. We benefited from a foreign exchange transaction gain of $2.7 million for the three months ended March 31, 2023 as compared to a $5.8 million gain for the three months ended March 31, 2022. Our European and Russian subsidiaries have certain net assets denominated in U.S. dollars, and our Chinese subsidiary has certain net liabilities denominated in U.S. dollars. The foreign exchange gain for the three months ended March 31, 2023 was primarily attributable to gains from the depreciation of Russian ruble and the appreciation of Chinese yuan, partially offset by loss from the appreciation of the euro as compared to the U.S. dollar.

Interest income (expense), net. Interest income, net was $7.5 million for the three months ended March 31, 2023 as compared to interest expense, net of $0.1 million for three months ended March 31, 2022. The change in interest income (expense), net, was due to an increase in yields on cash equivalents and short term investments.

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Provision for income taxes. Provision for income taxes was $23.2 million for the three months ended March 31, 2023 compared to $23.2 million for the three months ended March 31, 2022, representing an effective tax rate of 27.8% and 25.0% for the three months ended March 31, 2023 and 2022, respectively. The increase in the effective tax rate in 2023 was primarily due to the impact of discrete items. Both the 2023 and 2022 discrete items included a detriment related to tax deductions for equity-based compensation that were less than the compensation expense recognized for books. However, the 2022 discrete tax detriment from equity-based compensation was offset by reductions in tax liability as a result of changes in position agreed to with tax authorities for prior year audits.

Net income attributable to IPG Photonics Corporation. Net income attributable to IPG Photonics Corporation decreased by $9.5 million to $60.1 million for the three months ended March 31, 2023 compared to $69.6 million for the three months ended March 31, 2022. Net income attributable to IPG Photonics Corporation as a percentage of our net sales decreased by 1.5 percentage points to 17.3% for the three months ended March 31, 2023 from 18.8% for the three months ended March 31, 2022 due to the factors described above.

Liquidity and Capital Resources

We believe that our existing cash and cash equivalents, short-term investments, our cash flows from operations and our existing lines of credit provide us with the financial flexibility to meet our liquidity and capital needs. We expect to continue making investments in capital expenditures, to assess acquisition opportunities and to repurchase shares of our stock in accordance with our repurchase program. The extent and timing of such expenditures may vary from period to period. Our future long-term capital requirements will depend on many factors including our level of sales, the impact of the economic environment on our growth, the timing and extent of spending to support development efforts, expansion of global sales and marketing activities, government regulation including trade sanctions, the timing and introductions of new products, the need to ensure access to adequate manufacturing capacity and the continuing market acceptance of our products. In the near term, we will incur capital expenditures related to the expansion of capacity outside of Russia because of the reduction in manufacturing activity at our Russian factory due to sanctions.. As of March 31, 2023, we had no off-balance sheet arrangements that have, or are reasonably likely to have, a current or future material effect on our consolidated financial condition, results of operations, liquidity, capital expenditures or capital resources.

Included in cash and cash equivalents are $67.5 million of cash and cash equivalents located in Russia, and $4.0 million of cash and cash equivalents located in Belarus, as of March 31, 2023. Cash and cash equivalents in Russia are subject to capital controls that prevent repatriation by dividend or distribution of capital. There are currently no restrictions on our ability to use cash and cash equivalents in Russia for operating purposes including converting cash to foreign currency for the payment of goods received from vendors outside of Russia. The Russian operations are self-funding. Approximately 6% of our consolidated working capital including cash, cash equivalents and short-term investments is located in Russia. We are making no new investments in Russia.

The following table presents our principal sources of liquidity:

	March 31,		December 31,
	2023		2022
	(In thousands)
Cash and cash equivalents	$	521,137	$	698,209
Short-term investments	548,473		479,374
Unused credit lines and overdraft facilities	126,894		125,965
Working capital (excluding cash, cash equivalents and short-term investments)	596,455		534,045

Short-term investments at March 31, 2023 consist of liquid investments including commercial paper, corporate bonds, U.S. Treasury and agency obligations and term deposits with original maturities of greater than three months but less than one year. See Note 3, "Fair Value Measurements" in the notes to the condensed consolidated financial statements for further information about our short-term investments.

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The following table details our line-of-credit facilities and long-term note as of March 31, 2023: 

Description	Total Facility/ Note	Interest Rate	Maturity	Security
U.S. Revolving Line of Credit (1)	$75.0 million	BSBY plus 0.8% to 1.2%, depending on our performance	April 2025	Unsecured
Euro Credit Facility (Germany) (2)	Euro 50.0 million ($54.4 million)	ESTR plus 0.8% or Euribor plus 0.65%	July 2023	Unsecured, guaranteed by parent company and German subsidiary
Other Euro Facility (3)	Euro 1.5 million ($1.6 million)	5.60%	June 2023	Common pool of assets of Italian subsidiary
Long-term Unsecured Note (4)	$15.7 million	1.20% above LIBOR, fixed using an interest rate swap at 2.85% per annum	May 2023	Unsecured

(1) This facility is available to certain foreign subsidiaries in their respective local currencies. At March 31, 2023, there were no amounts drawn on this line; however, there were $2.5 million of guarantees issued against the line which reduces total availability.

(2) This facility is also available to certain foreign subsidiaries in their respective local currencies. At March 31, 2023, there were no drawings on this facility; however, there were $1.7 million of guarantees issued against the line which reduces total availability.

(3) At March 31, 2023, there were no drawings.

(4) At maturity, the outstanding note balance will be $15.4 million.

Our largest committed credit lines are with Bank of America N.A. and Deutsche Bank AG in the amounts of $75.0 million and $54.4 million (or €50.0 million as described above), respectively, and neither of them is syndicated. The banks have made amendments of our credit agreements to modify LIBOR and EONIA reference rates as these rates are phased out as borrowing reference rates. We do not plan to amend our long-term unsecured note as it matures prior to the final phase-out of LIBOR.

We are required to meet certain financial covenants associated with our U.S. revolving line of credit and long-term debt facility. These covenants, tested quarterly, include an interest coverage ratio and a funded debt to earnings before interest, taxes, depreciation and amortization ("EBITDA") ratio. The interest coverage covenant requires that we maintain a trailing twelve-month ratio of EBITDA to interest on all obligations that is at least 3.0:1.0. The funded debt to EBITDA covenant requires that the sum of all indebtedness for borrowed money on a consolidated basis be less than three times our trailing twelve months EBITDA. Funded debt is decreased by our cash and available marketable securities not classified as long-term investments in the U.S.A. in excess of $50 million up to a maximum of $500 million. We were in compliance with all such financial covenants as of and for the three months ended March 31, 2023.

The financial covenants in our loan documents may cause us to not make or to delay investments and actions that we might otherwise undertake because of limits on capital expenditures and amounts that we can borrow or lease. In the event that we do not comply with any one of these covenants, we would be in default under the loan agreement or loan agreements, which may result in acceleration of the debt, cross-defaults on other debt or a reduction in available liquidity, any of which could harm our results of operations and financial condition.

See Note 9, "Financing Arrangements" in the notes to the condensed consolidated financial statements for further information about our facilities and term debt.

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The following table presents cash flow activities:

	Three Months Ended March 31,
	2023		2022
	(In thousands)
Cash provided by operating activities	$	37,280	$	16,423
Cash (used in) provided by investing activities	(96,018)		2,470
Cash used in financing activities	(117,236)		(80,445)

Operating activities. Net cash provided by operating activities increased by $20.9 million to $37.3 million for the three months ended March 31, 2023 from $16.4 million for the three months ended March 31, 2022, primarily due to a decrease in cash used by working capital. Our largest working capital items typically are inventory and accounts receivable. Items such as accounts payable to third parties, prepaid expenses and other current assets and accrued expenses and other liabilities are not as significant as our working capital investment in accounts receivable and inventory because of the amount of value added within IPG due to our vertically integrated structure. Accruals and payables for personnel costs including bonuses and income and other taxes payable are largely dependent on the timing of payments for those items. The increase in cash flow from operating activities in 2023 primarily resulted from:

•a decrease in cash used by inventory, as the company is moderating additions to safety stocks for supply chain disruptions related to third party electronic parts and components internally manufactured by our factory in Russia;

•a decrease in cash used by accrued expenses due to lower bonus payments;

•a decrease in cash used by income and other taxes payable driven by the timing of estimated tax payments made and refunds received from filing tax returns; and

•a decrease in cash used by accounts payable due to timing of payments.

The increases in cash provided by operating activities were partially offset by:

•a decrease in cash provided by net income after adjusting for non-cash operating activities;

•an increase in cash used by accounts receivable due to timing of collection; and

•an increase in cash used by prepaid expenses and other assets.

Investing activities. Net cash used in investing activities was $96.0 million for the three months ended March 31, 2023 as compared to cash provided by investing activities of $2.5 million in 2022. The cash used in investing activities in 2023 related to $64.3 million of net purchases of short-term investments and $33.4 million of cash used for capital expenditures. The cash provided by investing activities in 2022 related to $30.4 million of net proceeds of short-term investments, partially offset by $25.2 million of cash used for property, plant and equipment.

In 2023, we expect to invest approximately $140 million to $160 million in capital expenditures, excluding acquisitions. Capital expenditures include investments in property, facilities and equipment to add capacity worldwide to support anticipated revenue growth, increase vertical integration, increase redundant manufacturing capacity for critical components and enhance research and development capabilities. The timing and extent of any capital expenditures in and between periods can have a significant effect on our cash flow. If we obtain financing for certain projects, our cash expenditures would be reduced in the year of expenditure. Many of the capital expenditure projects that we undertake have long lead times and are difficult to cancel or defer to a later period once a project has been started.

Financing activities. Net cash used in financing activities was $117.2 million for the three months ended March 31, 2023 as compared to net cash used of $80.4 million in 2022. The cash used in financing activities in 2023 primarily related to the purchase of treasury stock of $113.1 million and the net cash outflow of $3.8 million from the issuance of common stock under the employee stock purchase plan and the exercise of stock options net of amounts disbursed in relation to shares withheld to cover employee income taxes due upon the vesting and release of restricted stock units. The cash used in financing activities in 2022 primarily related to the purchase of treasury stock of $78.8 million.

Cautionary Statement Regarding Forward-Looking Statements

This Quarterly Report on Form 10-Q contains certain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, and we intend that such forward-looking statements be subject to the safe harbors created thereby. For this purpose, any statements contained in this Quarterly Report on Form 10-Q except for historical information are forward-looking statements. Without limiting the generality of the foregoing, words such as "may," "will," "expect," "believe," "anticipate," "intend," "could," "estimate," or "continue" or the negative or

25

other variations thereof or comparable terminology are intended to identify forward-looking statements. In addition, any statements that refer to projections of our future financial performance, trends in our businesses, or other characterizations of future events or circumstances are forward-looking statements.

The forward-looking statements included herein are based on current expectations of our management based on available information and involve a number of risks and uncertainties, all of which are difficult or impossible to accurately predict and many of which are beyond our control. As such, our actual results may differ significantly from those expressed in any forward-looking statements. Factors that may cause or contribute to such differences include, but are not limited to, those discussed in more detail in Item 1, "Business" and Item 1A, "Risk Factors" of Part I of the Form 10-K filed with the SEC for the year ended December 31, 2022 (the "Annual Report") and in Item 1A, "Risk Factors" of Part II of this Quarterly Report. Readers should carefully review these risks, as well as the additional risks described in other documents we file from time to time with the Securities and Exchange Commission. In light of the significant risks and uncertainties inherent in the forward-looking information included herein, the inclusion of such information should not be regarded as a representation by us or any other person that such results will be achieved, and readers are cautioned not to rely on such forward-looking information. We undertake no obligation to revise the forward-looking statements contained herein to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.

Recent Accounting Pronouncements

None.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We are exposed to market risk in the ordinary course of business, which consists primarily of interest rate risk associated with our cash and cash equivalents and our debt and foreign exchange rate risk.

Interest rate risk. Certain interest rates are variable and fluctuate with current market conditions. Our investments have limited exposure to market risk. We maintain a portfolio of cash, cash equivalents and short-term investments consisting primarily of bank deposits, money market funds, certificates of deposit, commercial paper, corporate bonds and U.S treasury and agency obligations. None of these investments have a maturity date in excess of one year. Because of the short-term nature of these instruments, a sudden change in market interest rates would not be expected to have a material impact on our financial condition or results of operations.

We are also exposed to market risk as a result of increases or decreases in the amount of interest expense we must pay on our bank debt and borrowings on our bank credit facilities. Our interest obligations on our long-term debt are fixed by means of an interest rate swap agreement. Although our U.S. revolving line of credit and our euro credit facility have variable rates, we do not believe that a 10% change in market interest rates would have a material impact on our financial position or results of operations.

Exchange rates. Due to our international operations, a significant portion of our net sales, cost of sales and operating expenses are denominated in currencies other than the U.S. dollar, principally the euro, the Russian ruble, and the Chinese yuan. Changes in the exchange rate of the U.S. dollar versus the functional currencies of our subsidiaries affect the translated value and relative level of sales and net income that we report from one period to the next. In addition, our subsidiaries may have assets or liabilities denominated in a currency other than their functional currency which results in foreign exchange transaction gains and losses due to changes in the value of the functional currency versus the currency the assets and liabilities are denominated in. The gain on foreign exchange transactions totaled $2.7 million for the three months ended March 31, 2023 compared to a gain of $5.8 million for the three months ended March 31, 2022. Management attempts to minimize these exposures by partially or fully off-setting foreign currency denominated assets and liabilities at our subsidiaries that operate in different functional currencies. The effectiveness of this strategy can be limited by the volume of underlying transactions at various subsidiaries and by our ability to accelerate or delay inter-company cash settlements. As a result, we are unable to create a perfect offset of the foreign currency denominated assets and liabilities. At March 31, 2023, our material foreign currency exposure is net U.S. dollar denominated assets at subsidiaries where the euro or the Russian ruble is the functional currency and U.S. dollar denominated liabilities where the Chinese yuan is the functional currency. The U.S. dollar denominated assets are comprised of cash, third party receivables and inter-company receivables. The U.S. dollar denominated liabilities are comprised of inter-company payables. A 5% change in the relative exchange rate of the U.S. dollar to the euro as of March 31, 2023 applied to the net U.S. dollar asset balances, would result in a foreign exchange gain of $1.5 million if the U.S. dollar appreciated and a $1.6 million foreign exchange loss if the U.S. dollar depreciated. A 5% change in the relative exchange rate of the U.S. dollar to the Russian ruble as of March 31, 2023 applied to the net U.S. dollar asset balances, would result in a foreign exchange gain of $1.5 million if the U.S. dollar appreciated and a $1.6 million foreign exchange loss if the U.S. dollar depreciated. A 5% change in the relative exchange rate of the U.S. dollar to the Chinese yuan as of March 31, 2023

26

applied to the net U.S. dollar liabilities balances, would result in a foreign exchange loss of $2.0 million if the U.S. dollar appreciated and a $2.1 million foreign exchange gain if the U.S. dollar depreciated. Volatility between the U.S. dollar and the currencies to which we are exposed may be increased by the COVID-19 pandemic, sanctions on the Russian government and changes in central bank policy.

In addition, we are exposed to foreign currency translation risk for those subsidiaries whose functional currency is not the U.S. dollar as changes in the value of their functional currency relative to the U.S. dollar affect the translated amounts of our assets and liabilities. Changes in the translated value of assets and liabilities due to changes in functional currency exchange rates relative to the U.S. dollar result in foreign currency translation adjustments that are a component of other comprehensive income or loss.

Foreign currency derivative instruments can also be used to hedge exposures and reduce the risks of certain foreign currency transactions; however, these instruments provide only limited protection and can carry significant cost. We have no foreign currency derivative instruments as of March 31, 2023. We will continue to analyze our exposure to currency exchange rate fluctuations and may engage in financial hedging techniques in the future to attempt to minimize the effect of these potential fluctuations. Exchange rate fluctuations may adversely affect our financial results in the future.

ITEM 4. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Under the supervision of our chief executive officer and our chief financial officer, our management has evaluated the effectiveness of the design and operation of our "disclosure controls and procedures" (as defined in Rules 13a-15(e) and 15d-15(e) promulgated under the Securities Exchange Act of 1934, as amended (the "Exchange Act")), as of the end of the period covered by this Quarterly Report on Form 10-Q (the "Evaluation Date"). Based upon that evaluation, our chief executive officer and our chief financial officer have concluded that, as of the Evaluation Date, our disclosure controls and procedures are effective.

Changes in Internal Controls

There was no change in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) promulgated under the Exchange Act) that occurred during the quarter ended March 31, 2023 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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PART II—OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

Information with respect to this item may be found in Note 11, "Commitments and Contingencies" in the Notes to Condensed Consolidated Financial Statements in Part I, Item 1 of this Quarterly Report and is incorporated herein by reference.

ITEM 1A. RISK FACTORS

In addition to the other information in this Quarterly Report on Form 10-Q, you should carefully consider the factors discussed in Item 1A of Part I of our Annual Report on Form 10-K for the year ended December 31, 2022, which could materially and adversely affect our financial condition, results of operations or cash flows, or cause our actual results to differ materially from those projected in any forward-looking statements. We may also face other risks and uncertainties that are not presently known, are not currently believed to be material, or are not identified in our Annual Report or this Quarterly Report because they are common to all businesses.

Our short-term investment portfolio and certain cash balances could experience a decline in market value or otherwise become illiquid, which could materially and adversely affect our financial results.

As of March 31, 2023, we had approximately $521 million of cash and cash equivalents and $548 million in short-term investments. See Note 3, "Fair Value Measurements" in the Notes to Condensed Consolidated Financial Statements in Part I, Item 1 of this Quarterly Report for further information about our cash equivalents and short-term investments. We currently do not use derivative financial instruments to adjust our investment portfolio risk or income profile. These investments, as well as any cash deposited in bank accounts, are subject to general credit, liquidity, market and interest rate risks, which may be exacerbated by unusual events, such as the COVID-19 pandemic, the Eurozone crisis and the U.S. debt ceiling crisis, which affected various sectors of the financial markets and led to global credit and liquidity issues. For example, in March 2023, certain US banks were closed and the Federal Deposit Insurance Corporation (FDIC) was appointed as receiver. While we were not directly impacted by these closures and did not have any deposits with these banks, there can be no assurance that our current or future banks will not face similar risks, and that we would be able to recover in full our deposits in the event of similar closures. We regularly maintain cash balances that are not insured or are in excess of the FDIC’s insurance limit. If the global financial markets continue to experience volatility or deteriorate, our investment portfolio and cash balances may be impacted and some or all of our investments may become illiquid or otherwise experience loss which could adversely impact our financial results and position.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Recent Sales of Unregistered Securities; Use of Proceeds from Registered Securities

There have been no sales of unregistered securities for the three months ended March 31, 2023.

Issuer Purchases of Equity Securities

The following table reflects issuer purchases of equity securities for the three months ended March 31, 2023:

	Total Number of Shares (or Units) Purchased		Average Price Paid per Share (or Unit)		Total Number of Shares (or Units) Purchased as Part of Publicly Announced Plans or Programs	Maximum Number (or Approximate Dollar Value) of Shares (or Units) that May Yet Be Purchased Under the Plans or Programs
January 1, 2023 — January 31, 2023	548,645	(2)	$	106.01	548,645	$	53,990
February 1, 2023 — February 28, 2023	344,693	(2)	118.78		344,693	13,048
March 1, 2023 — March 31, 2023	163,595	(1), (2)	124.07		105,431	—
Total	1,056,933		$	112.97	998,769	$	—

(1) In 2012, our Board of Directors approved "withhold to cover" as a tax payment method for vesting of restricted stock awards for certain employees. Pursuant to the "withhold to cover" method, we withheld from such employees the shares noted in the table above to cover tax withholding related to the vesting of their awards. For the three months ended March 31, 2023, a total of 58,164 and shares were withheld at an average price of $124.64.

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(2) On August 2, 2022, we announced that our Board of Directors authorized the purchase of up to $300 million of IPG common stock (the "August 2022 authorization"), exclusive of any fees, commissions or other expenses. Share repurchases under this purchase authorization were made periodically in open-market transactions using our working capital, and were subject to market conditions, legal requirements and other factors. The share purchase program authorizations did not obligate us to repurchase any dollar amount or number of our shares, and repurchases could be commenced or suspended from time to time without prior notice.

We repurchased 998,769 shares in the first quarter of 2023 under the August 2022 authorization. As of March 31, 2023, we completed all of the repurchases under this authorization.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5. OTHER INFORMATION

None.

ITEM 6. EXHIBITS

(a) Exhibits

Exhibit No.	Description
3.2	Amended and Restated Bylaws of IPG Photonics Corporation (incorporated by reference to Exhibit 3.2 to IPG Photonics Corporation's Current Report on Form 8-K filed with the Commission on January 23, 2023)
31.1	Certification of Chief Executive Officer pursuant to Rule 13a-14(a)
31.2	Certification of Chief Financial Officer pursuant to Rule 13a-14(a)
32	Certification of Chief Executive Officer and Chief Financial Officer pursuant to Section 1350
101.INS	Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document
101.SCH	XBRL Taxonomy Extension Schema
101.CAL	XBRL Taxonomy Extension Calculation Linkbase
101.LAB	XBRL Taxonomy Extension Label Linkbase
101.PRE	XBRL Taxonomy Extension Presentation Linkbase
101.DEF	XBRL Taxonomy Extension Definition Linkbase
104	Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

29

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this Report to be signed on its behalf by the undersigned thereunto duly authorized.

 

	IPG PHOTONICS CORPORATION
Date: May 2, 2023	By:	/s/ Eugene A. Scherbakov
		Eugene A. Scherbakov
		Chief Executive Officer (Principal Executive Officer)
Date: May 2, 2023	By:	/s/ Timothy P.V. Mammen
		Timothy P.V. Mammen
		Senior Vice President and Chief Financial Officer (Principal Financial Officer)

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EX-31.1

Exhibit 31.1

Certification of Chief Executive Officer

Pursuant to Rule 13a – 14(a) or Rule 15d – 14(a) of the Securities Exchange Act of 1934

I, Eugene A. Scherbakov, certify that:

1. I have reviewed this quarterly report on Form 10-Q of IPG Photonics Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)    Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be signed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)    Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)    Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)    Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a)    All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b)    Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: May 2, 2023

By:	/s/ Eugene A. Scherbakov
	Eugene A. Scherbakov
	Chief Executive Officer (Principal Executive Officer)

EX-31.2

Exhibit 31.2

Certification of Chief Financial Officer

Pursuant to Rule 13a – 14(a) or Rule 15d – 14(a) of the Securities Exchange Act of 1934

I, Timothy P.V. Mammen, certify that:

1. I have reviewed this quarterly report on Form 10-Q of IPG Photonics Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: May 2, 2023

By:	/s/ Timothy P.V. Mammen
	Timothy P.V. Mammen
	Senior Vice President and Chief Financial Officer (Principal Financial Officer)

EX-32

Exhibit 32

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the filing of the Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 2023 (the "Report") by IPG Photonics Corporation (the "Company"), Eugene A. Scherbakov, as the Chief Executive Officer of the Company, and Timothy P.V. Mammen, as the Chief Financial Officer of the Company, each hereby certifies pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of his knowledge:

1	the Report fully complies with the requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934; and
2	the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: May 2, 2023

/s/ Eugene A. Scherbakov

Eugene A. Scherbakov

Chief Executive Officer

/s/ Timothy P.V. Mammen

Timothy P.V. Mammen

Senior Vice President and Chief Financial Officer

A signed original of this written statement required by 18 U.S.C. Section 1350 has been provided to IPG Photonics Corporation and will be retained by IPG Photonics Corporation and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Cover Page - shares	3 Months Ended
	Mar. 31, 2023	May 01, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2023
Document Transition Report	false
Entity File Number	001-33155
Entity Registrant Name	IPG PHOTONICS CORP
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	04-3444218
Entity Address, Address Line One	377 Simarano Drive
Entity Address, City or Town	Marlborough
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	01752
City Area Code	508
Local Phone Number	373-1100
Title of 12(b) Security	Common Stock, par value $0.0001 per share
Trading Symbol	IPGP
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		47,305,582
Amendment Flag	false
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2023
Current Fiscal Year End Date	--12-31
Entity Central Index Key	0001111928

XML

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 521,137	$ 698,209
Short-term investments	548,473	479,374
Accounts receivable, net	236,575	211,347
Inventories	506,149	509,363
Prepaid income taxes	47,054	40,934
Prepaid expenses and other current assets	56,199	47,047
Total current assets	1,915,587	1,986,274
Deferred income taxes, net	59,089	75,152
Goodwill	38,388	38,325
Intangible assets, net	32,104	34,120
Property, plant and equipment, net	594,273	580,561
Other assets	31,715	28,848
Total assets	2,671,156	2,743,280
Current liabilities:
Current portion of long-term debt	15,734	16,031
Accounts payable	40,902	46,233
Accrued expenses and other current liabilities	189,786	202,764
Income taxes payable	3,100	9,618
Total current liabilities	249,522	274,646
Other long-term liabilities and deferred income taxes	83,109	83,274
Total liabilities	332,631	357,920
Commitments and contingencies (Note 11)
IPG Photonics Corporation equity:
Common stock, $0.0001 par value, 175,000,000 shares authorized; 56,183,735 and 47,305,551 shares issued and outstanding, respectively, at March 31, 2023; 56,017,672 and 48,138,257 shares issued and outstanding, respectively, at December 31, 2022.	6	6
Treasury stock, at cost, 8,878,184 and 7,879,415 shares held at March 31, 2023 and December 31, 2022, respectively.	(1,051,103)	(938,009)
Additional paid-in capital	957,103	951,371
Retained earnings	2,636,651	2,576,516
Accumulated other comprehensive loss	(204,132)	(204,524)
Total equity	2,338,525	2,385,360
Total liabilities and equity	$ 2,671,156	$ 2,743,280

XML

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized	175,000,000	175,000,000
Common stock, shares issued	56,183,735	56,017,672
Common stock, shares outstanding	47,305,551	48,138,257
Treasury stock, common, shares	8,878,184	7,879,415

XML

Condensed Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Net sales	$ 347,174	$ 369,979
Cost of sales	200,236	198,158
Gross profit	146,938	171,821
Operating expenses:
Sales and marketing	21,088	20,374
Research and development	22,770	33,450
General and administrative	30,128	30,664
Other restructuring charges	181	0
Gain on foreign exchange	(2,655)	(5,810)
Total operating expenses	71,512	78,678
Operating income	75,426	93,143
Other income (expense), net:
Interest income (expense), net	7,533	(70)
Other income (expense), net	331	(236)
Total other income (expense)	7,864	(306)
Income before provision for income taxes	83,290	92,837
Provision for income taxes	23,155	23,209
Net income	60,135	69,628
Less: net income attributable to non-controlling interests	0	56
Net income attributable to IPG Photonics Corporation common stockholders	$ 60,135	$ 69,572
Net income attributable to IPG Photonics Corporation per common share:
Basic (in dollars per share)	$ 1.26	$ 1.32
Diluted (in dollars per share)	$ 1.26	$ 1.31
Weighted average common shares outstanding:
Basic (in shares)	47,542,071	52,809,654
Diluted (in shares)	47,776,121	53,099,539

XML

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 60,135	$ 69,628
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments and other	481	(39,326)
Unrealized (loss) gain on derivatives	(89)	213
Total other comprehensive income (loss)	392	(39,113)
Comprehensive income	60,527	30,515
Less: comprehensive income attributable to non-controlling interests	0	361
Comprehensive income attributable to IPG Photonics Corporation	$ 60,527	$ 30,154

XML

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities:
Net income	$ 60,135	$ 69,628
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	17,889	23,435
Deferred income taxes	16,106	(3,397)
Stock-based compensation	9,576	9,994
Unrealized gain on foreign currency transactions	(1,877)	(2,393)
Other	(4,244)	2,368
Provisions for inventory, warranty and bad debt	17,214	16,142
Changes in assets and liabilities that (used) provided cash, net of acquisitions:
Accounts receivable	(24,642)	2,621
Inventories	(8,989)	(50,951)
Prepaid expenses and other assets	(10,419)	3,052
Accounts payable	(4,600)	(8,448)
Accrued expenses and other liabilities	(19,120)	(31,448)
Income and other taxes payable	(9,749)	(14,180)
Net cash provided by operating activities	37,280	16,423
Cash flows from investing activities:
Purchases of and deposits on property, plant and equipment	(33,404)	(25,177)
Proceeds from sales of property, plant and equipment	1,600	428
Purchases of short-term investments	(343,820)	(475,435)
Proceeds from short-term investments	279,499	505,818
Acquisitions of businesses, net of cash acquired	0	(2,000)
Other	107	(1,164)
Net cash (used in) provided by investing activities	(96,018)	2,470
Cash flows from financing activities:
Principal payments on long-term borrowings	(298)	(964)
Proceeds from issuance of common stock under employee stock option and purchase plans less payments for taxes related to net share settlement of equity awards	(3,844)	(724)
Purchase of treasury stock, at cost	(113,094)	(78,757)
Net cash used in financing activities	(117,236)	(80,445)
Effect of changes in exchange rates on cash and cash equivalents	(1,098)	(5,036)
Net decrease in cash and cash equivalents	(177,072)	(66,588)
Cash and cash equivalents — Beginning of period	698,209	709,105
Cash and cash equivalents — End of period	521,137	642,517
Supplemental disclosure of cash flow information:
Cash paid for interest	525	857
Cash paid for income taxes	19,203	25,423
Non-cash transactions:
Demonstration units transferred from inventory to other assets	1,499	917
Inventory transferred to machinery and equipment	(554)	780
Changes in accounts payable related to property, plant and equipment	1,109	(646)
Leased assets obtained in exchange for new operating lease liabilities	$ 457	$ 4,229

XML

Condensed Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive (Loss) Income	Non- controlling Interest
Balance, beginning of year (in shares) at Dec. 31, 2021		53,010,265
Balance, beginning of period at Dec. 31, 2021	$ 2,747,221	$ 6	$ (438,503)	$ 908,423	$ 2,466,607	$ (189,951)	$ 639
Balance, beginning of period (in shares) at Dec. 31, 2021			(2,777,981)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options and vesting of RSU's and PSU's (in shares)		133,316
Exercise of stock options and vesting of RSUs and PSUs, net of shares withheld for taxes	(724)			(724)
Purchased common stock (in shares)		(601,115)	(601,115)
Purchased common stock	(78,757)		$ (78,757)
Stock-based compensation	9,994			9,994
Net income	69,628				69,572		56
Foreign currency translation adjustments and other	(39,326)					(39,631)	305
Unrealized gain (loss) on derivatives, net of tax	213					213
Balance, end of period (in shares) at Mar. 31, 2022		52,542,466
Balance, end of period at Mar. 31, 2022	$ 2,708,249	$ 6	$ (517,260)	917,693	2,536,179	(229,369)	1,000
Balance, end of period (in shares) at Mar. 31, 2022			(3,379,096)
Balance, beginning of year (in shares) at Dec. 31, 2022	48,138,257	48,138,257
Balance, beginning of period at Dec. 31, 2022	$ 2,385,360	$ 6	$ (938,009)	951,371	2,576,516	(204,524)	0
Balance, beginning of period (in shares) at Dec. 31, 2022	(7,879,415)		(7,879,415)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options and vesting of RSU's and PSU's (in shares)		166,063
Exercise of stock options and vesting of RSUs and PSUs, net of shares withheld for taxes	$ (3,844)			(3,844)
Purchased common stock (in shares)		(998,769)	(998,769)
Purchased common stock	(113,094)		$ (113,094)
Stock-based compensation	9,576			9,576
Net income	60,135				60,135
Foreign currency translation adjustments and other	481					481
Unrealized gain (loss) on derivatives, net of tax	$ (89)					(89)
Balance, end of period (in shares) at Mar. 31, 2023	47,305,551	47,305,551
Balance, end of period at Mar. 31, 2023	$ 2,338,525	$ 6	$ (1,051,103)	$ 957,103	$ 2,636,651	$ (204,132)	$ 0
Balance, end of period (in shares) at Mar. 31, 2023	(8,878,184)		(8,878,184)

XML

Basis of Presentation and Significant Accounting Policies

3 Months Ended

Mar. 31, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES

BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation — The accompanying unaudited condensed consolidated financial statements have been prepared by IPG Photonics Corporation, or "IPG", "its" or the "Company". Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC"). The condensed consolidated financial statements include the Company's accounts and those of its subsidiaries. All intercompany balances have been eliminated in consolidation. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto in the Company's Annual Report on Form 10-K for the year ended December 31, 2022.

In the opinion of the Company's management, the financial information for the interim periods presented reflects all adjustments necessary for a fair presentation of the Company's financial position, results of operations and cash flows. The results reported in these condensed consolidated financial statements are not necessarily indicative of results that may be expected for the entire year.

Accounts Receivable and Allowance for Doubtful Accounts — The Company maintains an allowance for doubtful accounts to provide for the estimated amount of accounts receivable that will not be collected. The allowance is based upon an estimate of expected credit losses over the life of outstanding receivables. The estimate involves an assessment of customer creditworthiness, historical payment experience, an assumption of future expected credit losses, and the age of outstanding receivables.

Activity related to the allowance for doubtful accounts was as follows:

	Three Months Ended March 31,
	2023		2022
Balance, beginning of period	$	2,639	$	2,108
Provision for bad debts, net of (recoveries)	(209)		(146)
Uncollectable accounts written off	(50)		(1)
Foreign currency translation	(17)		(24)
Balance, end of period	$	2,363	$	1,937

Comprehensive Income — Comprehensive income includes charges and credits to equity that are not the result of transactions with stockholders. Included within comprehensive income is the cumulative foreign currency translation adjustment and unrealized gains or losses on derivatives. These adjustments are accumulated within the condensed consolidated statements of comprehensive income.

Total components of accumulated other comprehensive loss were as follows:

	Foreign currency translation adjustments and other		Unrealized gain (loss) on derivatives, net of tax		Total
Balance, January 1, 2023	$	(204,676)	$	152	$	(204,524)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments and other, net of tax expense of $35	481		—		481
Unrealized loss on derivatives, net of tax benefit of $26	—		(89)		(89)
Total other comprehensive income (loss)	481		(89)		392
Balance, March 31, 2023	$	(204,195)	$	63	$	(204,132)
Balance, January 1, 2022	$	(189,767)	$	(184)	$	(189,951)
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments and other, net of tax expense of $44	(39,631)		—		(39,631)
Unrealized gain on derivatives, net of tax expense of $66	—		213		213
Total other comprehensive (loss) income	(39,631)		213		(39,418)
Balance, March 31, 2022	$	(229,398)	$	29	$	(229,369)

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Revenue From Contracts With Customers

3 Months Ended

Mar. 31, 2023

Revenue from Contract with Customer [Abstract]

REVENUE FROM CONTRACTS WITH CUSTOMERS

REVENUE FROM CONTRACTS WITH CUSTOMERS

Sales are derived from products for different applications: fiber lasers, diode lasers, systems and accessories for materials processing; fiber lasers, diodes and amplifiers for advanced applications; and fiber lasers, systems and fibers for medical applications.

The following tables represent a disaggregation of revenue from contracts with customers:

	Three Months Ended March 31,
	2023		2022
Sales by Application
Materials processing	$	312,969	$	338,963
Other applications	34,205		31,016
Total	$	347,174	$	369,979

Sales by Product
High Power Continuous Wave ("CW") Lasers	$	154,034	$	167,691
Medium Power CW Lasers	13,839		23,668
Pulsed Lasers	56,147		66,932
Quasi-Continuous Wave ("QCW") Lasers	11,282		12,780
Laser and Non-Laser Systems	41,384		34,597
Other Revenue including Amplifiers, Service, Parts, Accessories and Change in Deferred Revenue	70,488		64,311
Total	$	347,174	$	369,979

	Three Months Ended March 31,
	2023		2022
Sales by Geography
North America	$	76,080	$	77,225
Europe:
Germany	19,833		27,417
Other Europe	80,420		80,000
Asia:
China	101,287		129,748
Japan	21,618		12,886
Other	43,654		38,675
Rest of World	4,282		4,028
Total	$	347,174	$	369,979

Timing of Revenue Recognition
Goods and services transferred at a point in time	$	333,125	$	355,415
Goods and services transferred over time	14,049		14,564
Total	$	347,174	$	369,979

One of the Company's customers accounted for 16% and 14% of the Company's net accounts receivable as of March 31, 2023 and December 31, 2022, respectively.

The Company enters into contracts to sell lasers and spare parts, for which revenue is generally recognized upon shipment or delivery, depending on the terms of the contract. The Company also provides installation services and extended warranties. The Company frequently receives consideration from a customer prior to transferring goods to the customer under the terms of a sales contract. The Company records customer deposits related to these prepayments, which represent a contract liability. The Company also records deferred revenue related to installation services when consideration is received before the services have been performed. The standalone selling price for installation services is determined based on the estimated number of days of service technician time required for installation at standard service rates. The Company recognizes customer deposits and deferred revenue as net sales after control of the goods or services has been transferred to the customer and all revenue recognition criteria are met. The Company bills customers for extended warranties upon entering into the agreement with the customer, resulting in deferred revenue that is recognized over the period of the extended warranty contract. The Company recognizes revenue over time on contracts for the sale of large scale materials processing systems. The timing of customer payments on these contracts generally differs from the timing of revenue recognized. If revenue recognized exceeds customer payments, a contract asset is recorded and if customer payments exceed revenue recognized, a contract liability is recorded. Contract assets are included within prepaid expense and other current assets on the condensed consolidated balance sheets. Contract liabilities are included within accrued expenses and other current liabilities on the condensed consolidated balance sheets. Certain deferred revenues related to extended warranties in excess of one year from the balance sheet date are included within other long-term liabilities and deferred income taxes on the condensed consolidated balance sheets.

The following table reflects the changes in the Company's contract assets and liabilities for the three months ended March 31, 2023 and 2022:

	March 31,		January 1,				March 31,		January 1,
	2023		2023		Change		2022		2022		Change
Contract assets
Contract assets	$	13,806	$	8,620	$	5,186	$	9,842	$	9,345	$	497
Contract liabilities
Contract liabilities - current	82,903		80,068		2,835		94,418		89,659		4,759
Contract liabilities - long-term	3,020		3,142		(122)		2,770		2,691		79

During the three months ended March 31, 2023 and 2022 the Company recognized revenue of $29,012 and $21,024, respectively, that was included in contract liabilities at the beginning of each period.

The following table represents the Company's remaining performance obligations from contracts that are recognized over time as of March 31, 2023:

	Remaining Performance Obligations
	2023 (a)		2024		2025		2026		2027		Thereafter		Total
Revenue expected to be recognized for extended warranty agreements	$	2,656	$	1,570	$	1,017	$	668	$	280	$	29	$	6,220
Revenue to be earned over time from contracts to sell large scale materials processing systems	22,309		5,667		—		—		—		—		27,976
Total	$	24,965	$	7,237	$	1,017	$	668	$	280	$	29	$	34,196

(a) For the nine-month period beginning April 1, 2023.

XML

Fair Value Measurements

3 Months Ended

Mar. 31, 2023

Fair Value Disclosures [Abstract]

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS

The Company's financial instruments consist of cash equivalents, short-term investments, accounts receivable, accounts payable, drawings on revolving lines of credit, long-term debt and interest rate swaps.

The valuation techniques used to measure fair value are based upon observable and unobservable inputs. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect internal market assumptions. These two types of inputs create the following fair value hierarchy: Level 1, defined as observable inputs such as quoted prices for identical instruments in active markets; Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable; and Level 3, defined as unobservable inputs for which little or no market data exists, therefore requiring an entity to develop its own assumptions. The Company classifies its financial instruments according to the prescribed criteria.

The fair value of money market fund deposits, term deposits, accounts receivable, accounts payable and drawings on revolving lines of credit is reasonably close to their carrying amounts due to the short maturity of most of these instruments or as a result of the competitive market interest rates, which have been negotiated. The fair value of the Company's commercial paper, corporate bonds, U.S. Treasury and agency obligations and term deposits are based on level 2 inputs.

The following table presents fair value information related to the Company's assets and liabilities measured at amortized cost on the condensed consolidated balance sheets with the exception of the interest rate swap, which are measured at fair value:

	Fair Value Measurements at March 31, 2023
	Total		Level 1		Level 2		Level 3
Assets
Cash equivalents:
Money market fund deposits	$	117,102	$	117,102	$	—	$	—
Commercial paper	74,846		—		74,846		—
Term deposits	27,061		—		27,061		—
Short-term investments:
Commercial paper	397,022		—		397,022		—
Corporate bonds	76,530		—		76,530		—
U.S. Treasury and agency obligations	71,432		—		71,432		—
Term deposits	3,009		—		3,009		—
Other assets:
Interest rate swap	83		—		83		—
Total assets	$	767,085	$	117,102	$	649,983	$	—
Liabilities
Term debt	$	15,734	$	—	$	15,734	$	—
Total liabilities	$	15,734	$	—	$	15,734	$	—

	Fair Value Measurements at December 31, 2022
	Total		Level 1		Level 2		Level 3
Assets
Cash equivalents:
Money market fund deposits	$	195,654	$	195,654	$	—	$	—
Commercial paper	94,661		—		94,661		—
Term deposits	68,827		—		68,827		—
Corporate bonds	1,497		—		1,497		—
Short-term investments:
Commercial paper	363,991		—		363,991		—
Corporate bonds	65,022		—		65,022		—
U.S. Treasury and agency obligations	39,611		—		39,611		—
Term deposits	10,113		—		10,113		—
Other assets:
Interest rate swaps	198		—		198		—
Total assets	$	839,574	$	195,654	$	643,920	$	—
Liabilities
Term debt	$	16,031	$	—	$	16,031	$	—
Total liabilities	$	16,031	$	—	$	16,031	$	—

Short-term investments consist of liquid investments with original maturities of greater than three months but less than one year and are recorded at amortized cost. There were no impairments for the investments considered held-to-maturity during the quarters ended March 31, 2023 and 2022. There were no current expected credit loss allowances for the investments considered held-to-maturity at March 31, 2023 and 2022. The Company holds highly-rated held-to-maturity instruments that are within one year of maturity.

The following table presents the effective maturity dates of debt investments, which are held-to-maturity:

	March 31, 2023				December 31, 2022
	Book Value		Fair Value		Book Value		Fair Value
Investment maturity
Less than 1 year	$	548,473	$	547,993	$	479,374	$	478,737

The Company entered into an interest rate swap that is designated as a cash flow hedge associated with a long-term note issued during the second quarter of 2016 that will terminate with the long-term note in May 2023. The fair value at March 31, 2023 for the interest rate swap considered pricing models whose inputs are observable for the securities held by the Company.

At March 31, 2023 and December 31, 2022, the Company's long-term note is a variable rate note. The carrying value of the note approximates the estimated fair value of $15,734 and $16,031, respectively. The long-term note was reported at amortized cost on the condensed consolidated balance sheets and was classified within Level 2 of the fair value hierarchy.

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Inventories

3 Months Ended

Mar. 31, 2023

Inventory Disclosure [Abstract]

INVENTORIES

INVENTORIES

Inventories consist of the following:

	March 31,		December 31,
	2023		2022
Components and raw materials	$	308,357	$	322,506
Work-in-process	39,603		18,911
Finished goods	158,189		167,946
Total	$	506,149	$	509,363

The Company recorded inventory provisions totaling $12,096 and $10,781 for the three months ended March 31, 2023 and 2022, respectively. These provisions relate to the recoverability of the value of inventories due to technological changes and excess quantities. These provisions are reported as a reduction to components and raw materials, work-in-process and finished goods.

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Restructuring

3 Months Ended

Mar. 31, 2023

Restructuring and Related Activities [Abstract]

RESTRUCTURING

RESTRUCTURING

In the fourth quarter of 2022, the Company implemented a restructuring program at its Russian subsidiary. The program resulted in personnel-related restructuring charges of $181 for the three months ended March 31, 2023. All personnel-related restructuring charges are expected to be paid within 12 months. There was no restructuring related activity for the three months ended March 31, 2022.

The restructuring accrual was included in accrued expenses and other current liabilities in the Company's condensed consolidated balance sheets. Activity related to the restructuring accrual was as follows:

	Three Months Ended March 31,
	2023
Balance, beginning of period	$	4,869
Charges	181
Cash payments	(1,758)
Foreign exchange adjustment	(367)
Balance, end of period	$	2,925

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Goodwill and Intangibles

3 Months Ended

Mar. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

GOODWILL AND INTANGIBLES

GOODWILL AND INTANGIBLES

The following table sets forth the changes in the carrying amount of goodwill:

	Three Months Ended March 31,
	2023		2022
Balance, beginning of period	$	38,325	$	38,609
Goodwill arising from business combinations	—		1,000
Foreign exchange adjustment	63		132
Balance, end of period	$	38,388	$	39,741

Intangible assets, subject to amortization, consisted of the following:

	March 31, 2023							December 31, 2022
	Gross Carrying Amount		Accumulated Amortization		Net  Carrying Amount		Weighted- Average  Lives	Gross Carrying Amount		Accumulated Amortization		Net  Carrying Amount		Weighted- Average  Lives
Customer relationships	$	48,186	$	(22,816)	$	25,370	11 years	$	48,155	$	(21,734)	$	26,421	11 years
Technology, trademark and trade name	30,222		(23,892)		6,330		7 years	30,360		(23,189)		7,171		7 years
Production know-how	9,133		(8,919)		214		7 years	9,109		(8,818)		291		7 years
Patents	8,034		(7,844)		190		8 years	8,034		(7,797)		237		8 years
Total	$	95,575	$	(63,471)	$	32,104		$	95,658	$	(61,538)	$	34,120

Amortization expense for the three months ended March 31, 2023 and 2022 was $2,021 and $3,021, respectively. The estimated future amortization expense for intangibles for the remainder of 2023 and subsequent years is as follows:

2023 (a)		2024		2025		2026		2027		Thereafter		Total
$	5,873	$	5,554	$	4,977	$	4,216	$	4,004	$	7,480	$	32,104

(a) For the nine-month period beginning April 1, 2023.

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Other Liabilities

3 Months Ended

Mar. 31, 2023

Payables and Accruals [Abstract]

Other Liabilities

OTHER LIABILITIES

Accrued expenses and other current liabilities consist of the following:

	March 31,		December 31,
	2023		2022
Contract liabilities	$	82,903	$	80,068
Accrued compensation	60,311		78,251
Current portion of accrued warranty	28,813		28,504
Short-term lease liabilities	5,037		5,234
Other	12,722		10,707
Total	$	189,786	$	202,764

Other long-term liabilities and deferred income taxes consist of the following:

	March 31,		December 31,
	2023		2022
Accrued warranty	$	25,026	$	24,358
Transition tax related to 2017 U.S. tax reform act	19,874		19,874
Long-term lease liabilities	15,869		16,787
Unrealized tax benefits	15,805		15,841
Deferred income taxes	1,477		1,469
Other	5,058		4,945
Total	$	83,109	$	83,274

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Product Warranties

3 Months Ended

Mar. 31, 2023

Product Warranties Disclosures [Abstract]

PRODUCT WARRANTIES

PRODUCT WARRANTIES

The Company typically provides one to five years parts and service warranties on lasers, laser and non-laser systems, and amplifiers. Most of the Company's sales offices provide support to customers in their respective geographic areas. Warranty reserves have generally been sufficient to cover product warranty repair and replacement costs.

Activity related to the warranty accrual was as follows:

	Three Months Ended March 31,
	2023		2022
Balance, beginning of period	$	52,862	$	49,864
Provision for warranty accrual	4,375		5,071
Warranty claims	(3,798)		(3,707)
Foreign currency translation	400		(882)
Balance, end of period	$	53,839	$	50,346

Accrued warranty reported in the accompanying condensed consolidated financial statements as of March 31, 2023 and December 31, 2022 consist of $28,813 and $28,504 in accrued expenses and other current liabilities, respectively, and $25,026 and $24,358 in other long-term liabilities and deferred income taxes, respectively.

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Financing Arrangements

3 Months Ended

Mar. 31, 2023

Debt Disclosure [Abstract]

FINANCING ARRANGEMENTS

FINANCING ARRANGEMENTS

The Company's borrowings under existing financing arrangement consists of the following:

	March 31,		December 31,
	2023		2022
Current portion of long-term debt	$	15,734	$	16,031

Term Debt:

At March 31, 2023, the Company has an unsecured long-term note with an outstanding principal balance of $15,734, all of which is current. The interest on this unsecured long-term note is variable at 1.20% above LIBOR and is fixed using an interest rate swap at 2.85% per annum. The unsecured long-term note matures in May 2023, at which time the outstanding principal balance will be $15,438.

Revolving Line of Credit Facilities:

The Company maintains a $75,000 U.S. revolving line of credit and a €50,000 ($54,385) line-of-credit in Germany, both of which are available to certain foreign subsidiaries and allow for borrowings in the local currencies of those subsidiaries. The Company also maintains a €1,500 ($1,632) Italian overdraft facility. At March 31, 2023 and December 31, 2022, there were no amounts drawn on the U.S. line-of-credit, and there were $2,460 and $2,396, respectively, of guarantees issued against the facility, which reduce the amount of the facility available to draw. At March 31, 2023 and December 31, 2022, there were no amounts drawn on the euro line-of-credit, and there were $1,663 and $1,737, respectively, of guarantees issued against those facilities, which reduce the amount available to draw. At March 31, 2023 and December 31, 2022, there were no amounts drawn on the euro overdraft facility. After providing for the guarantees used, the total unused lines-of-credit and overdraft facilities are $126,894 at March 31, 2023.

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Derivative Financial Instruments

3 Months Ended

Mar. 31, 2023

Derivative Instruments and Hedging Activities Disclosure [Abstract]

DERIVATIVE FINANCIAL INSTRUMENTS

DERIVATIVE FINANCIAL INSTRUMENTS

The Company's only outstanding derivative financial instrument is an interest rate swap that is classified as a cash flow hedge of its variable rate debt. The fair value amounts in the condensed consolidated balance sheets were:

	March 31,		December 31,
	2023		2022
Notional amounts (1)	$	15,734	$	16,031
Fair values:
Other assets	$	83	$	198

(1) Notional amounts represent the gross contract/notional amount of the derivatives outstanding.

The derivative gains and losses in the condensed consolidated financial statements related to the Company's current and previous interest rate swap contracts were as follows:

	Three Months Ended March 31,
	2023		2022
Effective portion recognized in other comprehensive income, pretax:
Interest rate swap	$	(115)	$	279

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2023

Commitments and Contingencies Disclosure [Abstract]

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES

From time to time, the Company may be involved in legal disputes and other proceedings in the ordinary course of its business. These matters may include allegations of infringement of intellectual property, commercial disputes and employment matters. As of March 31, 2023 and through the filing date of these condensed consolidated financial statements, the Company is aware of no ongoing legal proceedings that management estimates could have a material effect on the Company's Consolidated Financial Statements.

The Company has submitted a limited number of voluntary self-disclosures regarding compliance with export control laws and regulations to the Bureau of Industry and Security of the U.S. Department of Commerce. In October 2021, the U.S.

Department of Justice ("DOJ") advised the Company it was conducting an investigation into certain shipments of equipment. The Company believes the DOJ's investigation has concluded however other agencies of the Federal government continue an investigation regarding our export practices. At this time, the Company is not able to conclude whether it is probable that the Federal government will assert a claim or assessment against the Company, nor can the Company estimate expenses that the Company may incur as a result of the investigation.

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Income Taxes

3 Months Ended

Mar. 31, 2023

Income Tax Disclosure [Abstract]

INCOME TAXES

INCOME TAXES

The effective tax rates were 27.8% and 25.0% for the three months ended March 31, 2023 and 2022, respectively. There was a net discrete tax detriment of $1,972 for the three months ended March 31, 2023 and a net discrete tax benefit of $252 for the three months ended March 31, 2022. The detriment in 2023 relates primarily to the tax impact from tax deductions for stock-based compensation that were less than the compensation expense recognized for books. There was a similar detriment for stock-based compensation in 2022 but in that year, this item was offset by reductions in tax liability as a result of changes in position agreed to with tax authorities for prior year audits.

The Company accounts for its uncertain tax positions in accordance with the accounting standards for income taxes. The Company classifies interest and penalties related to unrecognized tax benefits as a component of the provision for income taxes. The following is a summary of the activity of the Company’s unrecognized tax benefits for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31,
	2023		2022
Balance, beginning of period	$	15,841	$	19,209
Change in prior period positions	42		(249)
Additions for tax positions in current period	—		500
Foreign currency translation	(78)		(541)
Balance, end of period	$	15,805	$	18,919

The liability for uncertain tax benefits is included in other long-term liabilities and deferred income taxes at March 31, 2023 and December 31, 2022. Substantially all of the liability for uncertain tax benefits related to various federal, state and foreign income tax matters would benefit the Company's effective tax rate, if recognized.

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Net Income Attributable to IPG Photonics Corporation Per Common Share

3 Months Ended

Mar. 31, 2023

Earnings Per Share [Abstract]

NET INCOME ATTRIBUTABLE TO IPG PHOTONICS CORPORATION PER COMMON SHARE

NET INCOME ATTRIBUTABLE TO IPG PHOTONICS CORPORATION PER COMMON SHARE

The following table sets forth the computation of diluted net income attributable to IPG Photonics Corporation per common share following the treasury stock method:

	Three Months Ended March 31,
	2023		2022
Net income attributable to IPG Photonics Corporation common stockholders	$	60,135	$	69,572
Basic weighted average common shares	47,542,071		52,809,654
Dilutive effect of common stock equivalents	234,050		289,885
Diluted weighted average common shares	47,776,121		53,099,539
Basic net income attributable to IPG Photonics Corporation per common share	$	1.26	$	1.32
Diluted net income attributable to IPG Photonics Corporation per common share	$	1.26	$	1.31

The computation of diluted weighted average common shares excludes common stock equivalents including non-qualified stock options, performance stock units ("PSUs"), restricted stock units ("RSUs") and employee stock purchase plan

("ESPP") because the effect of including them would be anti-dilutive. The weighted average anti-dilutive shares outstanding for the three months ended March 31, 2023 and 2022 were as follows:

	Three Months Ended March 31,
	2023	2022
Non-qualified stock options	543,408	472,699
Restricted stock units	346,729	205,272
Performance stock units	30,860	31,560
Total weighed average anti-dilutive shares outstanding	920,997	709,531

For the three months ended March 31, 2023, the Company repurchased 998,769 shares of common stock under a $300,000 purchase plan approved by the Board of Directors in August 2022 at a weighted average price of $112.29 per share in the open market. The impact on the reduction of weighted average shares for the three months ended March 31, 2023 was 661,816 shares. As of March 31, 2023, the Company has

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Subsequent Events	3 Months Ended
	Mar. 31, 2023
Subsequent Events [Abstract]
Subsequent Events	SUBSEQUENT EVENTSOn May 2, 2023, the Company announced that its Board of Directors has authorized the purchase of up to $200,000 of IPG common stock. Share repurchases may be made periodically in open-market transactions, and are subject to market conditions, legal requirements and other factors. The share repurchase program authorization does not obligate the Company to repurchase any dollar amount or number of its shares, and repurchases may be commenced or suspended from time to time without prior notice.

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Basis of Presentation and Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation — The accompanying unaudited condensed consolidated financial statements have been prepared by IPG Photonics Corporation, or "IPG", "its" or the "Company". Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC"). The condensed consolidated financial statements include the Company's accounts and those of its subsidiaries. All intercompany balances have been eliminated in consolidation. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto in the Company's Annual Report on Form 10-K for the year ended December 31, 2022.
Accounts Receivable and Allowance for Doubtful Accounts	Accounts Receivable and Allowance for Doubtful Accounts — The Company maintains an allowance for doubtful accounts to provide for the estimated amount of accounts receivable that will not be collected. The allowance is based upon an estimate of expected credit losses over the life of outstanding receivables. The estimate involves an assessment of customer creditworthiness, historical payment experience, an assumption of future expected credit losses, and the age of outstanding receivables.

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Basis of Presentation and Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Allowance for Doubtful Accounts

Activity related to the allowance for doubtful accounts was as follows:

	Three Months Ended March 31,
	2023		2022
Balance, beginning of period	$	2,639	$	2,108
Provision for bad debts, net of (recoveries)	(209)		(146)
Uncollectable accounts written off	(50)		(1)
Foreign currency translation	(17)		(24)
Balance, end of period	$	2,363	$	1,937

Schedule of Accumulated Other Comprehensive Income (Loss)

Total components of accumulated other comprehensive loss were as follows:

	Foreign currency translation adjustments and other		Unrealized gain (loss) on derivatives, net of tax		Total
Balance, January 1, 2023	$	(204,676)	$	152	$	(204,524)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments and other, net of tax expense of $35	481		—		481
Unrealized loss on derivatives, net of tax benefit of $26	—		(89)		(89)
Total other comprehensive income (loss)	481		(89)		392
Balance, March 31, 2023	$	(204,195)	$	63	$	(204,132)
Balance, January 1, 2022	$	(189,767)	$	(184)	$	(189,951)
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments and other, net of tax expense of $44	(39,631)		—		(39,631)
Unrealized gain on derivatives, net of tax expense of $66	—		213		213
Total other comprehensive (loss) income	(39,631)		213		(39,418)
Balance, March 31, 2022	$	(229,398)	$	29	$	(229,369)

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Revenue From Contracts With Customers (Tables)

3 Months Ended

Mar. 31, 2023

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following tables represent a disaggregation of revenue from contracts with customers:

	Three Months Ended March 31,
	2023		2022
Sales by Application
Materials processing	$	312,969	$	338,963
Other applications	34,205		31,016
Total	$	347,174	$	369,979

Sales by Product
High Power Continuous Wave ("CW") Lasers	$	154,034	$	167,691
Medium Power CW Lasers	13,839		23,668
Pulsed Lasers	56,147		66,932
Quasi-Continuous Wave ("QCW") Lasers	11,282		12,780
Laser and Non-Laser Systems	41,384		34,597
Other Revenue including Amplifiers, Service, Parts, Accessories and Change in Deferred Revenue	70,488		64,311
Total	$	347,174	$	369,979

	Three Months Ended March 31,
	2023		2022
Sales by Geography
North America	$	76,080	$	77,225
Europe:
Germany	19,833		27,417
Other Europe	80,420		80,000
Asia:
China	101,287		129,748
Japan	21,618		12,886
Other	43,654		38,675
Rest of World	4,282		4,028
Total	$	347,174	$	369,979

Timing of Revenue Recognition
Goods and services transferred at a point in time	$	333,125	$	355,415
Goods and services transferred over time	14,049		14,564
Total	$	347,174	$	369,979

Changes in Contract Assets and Liabilities

The following table reflects the changes in the Company's contract assets and liabilities for the three months ended March 31, 2023 and 2022:

	March 31,		January 1,				March 31,		January 1,
	2023		2023		Change		2022		2022		Change
Contract assets
Contract assets	$	13,806	$	8,620	$	5,186	$	9,842	$	9,345	$	497
Contract liabilities
Contract liabilities - current	82,903		80,068		2,835		94,418		89,659		4,759
Contract liabilities - long-term	3,020		3,142		(122)		2,770		2,691		79

Schedule of Remaining Performance Obligations

The following table represents the Company's remaining performance obligations from contracts that are recognized over time as of March 31, 2023:

	Remaining Performance Obligations
	2023 (a)		2024		2025		2026		2027		Thereafter		Total
Revenue expected to be recognized for extended warranty agreements	$	2,656	$	1,570	$	1,017	$	668	$	280	$	29	$	6,220
Revenue to be earned over time from contracts to sell large scale materials processing systems	22,309		5,667		—		—		—		—		27,976
Total	$	24,965	$	7,237	$	1,017	$	668	$	280	$	29	$	34,196

(a) For the nine-month period beginning April 1, 2023.

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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2023

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value

The following table presents fair value information related to the Company's assets and liabilities measured at amortized cost on the condensed consolidated balance sheets with the exception of the interest rate swap, which are measured at fair value:

	Fair Value Measurements at March 31, 2023
	Total		Level 1		Level 2		Level 3
Assets
Cash equivalents:
Money market fund deposits	$	117,102	$	117,102	$	—	$	—
Commercial paper	74,846		—		74,846		—
Term deposits	27,061		—		27,061		—
Short-term investments:
Commercial paper	397,022		—		397,022		—
Corporate bonds	76,530		—		76,530		—
U.S. Treasury and agency obligations	71,432		—		71,432		—
Term deposits	3,009		—		3,009		—
Other assets:
Interest rate swap	83		—		83		—
Total assets	$	767,085	$	117,102	$	649,983	$	—
Liabilities
Term debt	$	15,734	$	—	$	15,734	$	—
Total liabilities	$	15,734	$	—	$	15,734	$	—

	Fair Value Measurements at December 31, 2022
	Total		Level 1		Level 2		Level 3
Assets
Cash equivalents:
Money market fund deposits	$	195,654	$	195,654	$	—	$	—
Commercial paper	94,661		—		94,661		—
Term deposits	68,827		—		68,827		—
Corporate bonds	1,497		—		1,497		—
Short-term investments:
Commercial paper	363,991		—		363,991		—
Corporate bonds	65,022		—		65,022		—
U.S. Treasury and agency obligations	39,611		—		39,611		—
Term deposits	10,113		—		10,113		—
Other assets:
Interest rate swaps	198		—		198		—
Total assets	$	839,574	$	195,654	$	643,920	$	—
Liabilities
Term debt	$	16,031	$	—	$	16,031	$	—
Total liabilities	$	16,031	$	—	$	16,031	$	—

Schedule of Effective Maturity Dates of Held to Maturity Investments

The following table presents the effective maturity dates of debt investments, which are held-to-maturity:

	March 31, 2023				December 31, 2022
	Book Value		Fair Value		Book Value		Fair Value
Investment maturity
Less than 1 year	$	548,473	$	547,993	$	479,374	$	478,737

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Inventories (Tables)

3 Months Ended

Mar. 31, 2023

Inventory Disclosure [Abstract]

Components of Inventories

Inventories consist of the following:

	March 31,		December 31,
	2023		2022
Components and raw materials	$	308,357	$	322,506
Work-in-process	39,603		18,911
Finished goods	158,189		167,946
Total	$	506,149	$	509,363

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Restructuring (Tables)

3 Months Ended

Mar. 31, 2023

Restructuring and Related Activities [Abstract]

Restructuring and Related Costs

The restructuring accrual was included in accrued expenses and other current liabilities in the Company's condensed consolidated balance sheets. Activity related to the restructuring accrual was as follows:

	Three Months Ended March 31,
	2023
Balance, beginning of period	$	4,869
Charges	181
Cash payments	(1,758)
Foreign exchange adjustment	(367)
Balance, end of period	$	2,925

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Goodwill and Intangibles (Tables)

3 Months Ended

Mar. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The following table sets forth the changes in the carrying amount of goodwill:

	Three Months Ended March 31,
	2023		2022
Balance, beginning of period	$	38,325	$	38,609
Goodwill arising from business combinations	—		1,000
Foreign exchange adjustment	63		132
Balance, end of period	$	38,388	$	39,741

Schedule of Intangible Assets

Intangible assets, subject to amortization, consisted of the following:

	March 31, 2023							December 31, 2022
	Gross Carrying Amount		Accumulated Amortization		Net  Carrying Amount		Weighted- Average  Lives	Gross Carrying Amount		Accumulated Amortization		Net  Carrying Amount		Weighted- Average  Lives
Customer relationships	$	48,186	$	(22,816)	$	25,370	11 years	$	48,155	$	(21,734)	$	26,421	11 years
Technology, trademark and trade name	30,222		(23,892)		6,330		7 years	30,360		(23,189)		7,171		7 years
Production know-how	9,133		(8,919)		214		7 years	9,109		(8,818)		291		7 years
Patents	8,034		(7,844)		190		8 years	8,034		(7,797)		237		8 years
Total	$	95,575	$	(63,471)	$	32,104		$	95,658	$	(61,538)	$	34,120

Estimated Future Amortization Expense for Intangibles

The estimated future amortization expense for intangibles for the remainder of 2023 and subsequent years is as follows:

2023 (a)		2024		2025		2026		2027		Thereafter		Total
$	5,873	$	5,554	$	4,977	$	4,216	$	4,004	$	7,480	$	32,104

(a) For the nine-month period beginning April 1, 2023.

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Other Liabilities (Tables)

3 Months Ended

Mar. 31, 2023

Payables and Accruals [Abstract]

Components of Accrued Expenses and Other Liabilities

Accrued expenses and other current liabilities consist of the following:

	March 31,		December 31,
	2023		2022
Contract liabilities	$	82,903	$	80,068
Accrued compensation	60,311		78,251
Current portion of accrued warranty	28,813		28,504
Short-term lease liabilities	5,037		5,234
Other	12,722		10,707
Total	$	189,786	$	202,764

Other Noncurrent Liabilities

Other long-term liabilities and deferred income taxes consist of the following:

	March 31,		December 31,
	2023		2022
Accrued warranty	$	25,026	$	24,358
Transition tax related to 2017 U.S. tax reform act	19,874		19,874
Long-term lease liabilities	15,869		16,787
Unrealized tax benefits	15,805		15,841
Deferred income taxes	1,477		1,469
Other	5,058		4,945
Total	$	83,109	$	83,274

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Product Warranties (Tables)

3 Months Ended

Mar. 31, 2023

Product Warranties Disclosures [Abstract]

Summary of Product Warranty Activity

Activity related to the warranty accrual was as follows:

	Three Months Ended March 31,
	2023		2022
Balance, beginning of period	$	52,862	$	49,864
Provision for warranty accrual	4,375		5,071
Warranty claims	(3,798)		(3,707)
Foreign currency translation	400		(882)
Balance, end of period	$	53,839	$	50,346

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Financing Arrangements (Tables)

3 Months Ended

Mar. 31, 2023

Debt Disclosure [Abstract]

Borrowings Under Existing Financing Arrangements

The Company's borrowings under existing financing arrangement consists of the following:

	March 31,		December 31,
	2023		2022
Current portion of long-term debt	$	15,734	$	16,031

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Derivative Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2023

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Fair Value of Derivatives

The fair value amounts in the condensed consolidated balance sheets were:

	March 31,		December 31,
	2023		2022
Notional amounts (1)	$	15,734	$	16,031
Fair values:
Other assets	$	83	$	198

(1) Notional amounts represent the gross contract/notional amount of the derivatives outstanding.

Derivative Gains (Losses) In The Consolidated Statements Of Income Related To Interest Rate Swap Contracts

The derivative gains and losses in the condensed consolidated financial statements related to the Company's current and previous interest rate swap contracts were as follows:

	Three Months Ended March 31,
	2023		2022
Effective portion recognized in other comprehensive income, pretax:
Interest rate swap	$	(115)	$	279

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Income Taxes (Tables)

3 Months Ended

Mar. 31, 2023

Income Tax Disclosure [Abstract]

Schedule of Unrecognized Tax Benefits

The following is a summary of the activity of the Company’s unrecognized tax benefits for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31,
	2023		2022
Balance, beginning of period	$	15,841	$	19,209
Change in prior period positions	42		(249)
Additions for tax positions in current period	—		500
Foreign currency translation	(78)		(541)
Balance, end of period	$	15,805	$	18,919

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Net Income Attributable to IPG Photonics Corporation Per Common Share (Tables)

3 Months Ended

Mar. 31, 2023

Earnings Per Share [Abstract]

Computation of Diluted Net Income Per Share

The following table sets forth the computation of diluted net income attributable to IPG Photonics Corporation per common share following the treasury stock method:

	Three Months Ended March 31,
	2023		2022
Net income attributable to IPG Photonics Corporation common stockholders	$	60,135	$	69,572
Basic weighted average common shares	47,542,071		52,809,654
Dilutive effect of common stock equivalents	234,050		289,885
Diluted weighted average common shares	47,776,121		53,099,539
Basic net income attributable to IPG Photonics Corporation per common share	$	1.26	$	1.32
Diluted net income attributable to IPG Photonics Corporation per common share	$	1.26	$	1.31

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The weighted average anti-dilutive shares outstanding for the three months ended March 31, 2023 and 2022 were as follows:

	Three Months Ended March 31,
	2023	2022
Non-qualified stock options	543,408	472,699
Restricted stock units	346,729	205,272
Performance stock units	30,860	31,560
Total weighed average anti-dilutive shares outstanding	920,997	709,531

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Basis of Presentation and Significant Accounting Policies (Allowance for Doubtful Accounts) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	$ 2,639	$ 2,108
Provision for bad debts, net of (recoveries)	(209)	(146)
Uncollectable accounts written off	(50)	(1)
Foreign currency translation	(17)	(24)
Balance, end of period	$ 2,363	$ 1,937

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Basis of Presentation and Significant Accounting Policies (Components of Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
AOCI [Roll Forward]
Balance, beginning of period	$ 2,385,360	$ 2,747,221
Balance, end of period	2,338,525	2,708,249
Foreign currency translation adjustments and other
AOCI [Roll Forward]
Balance, beginning of period	(204,676)	(189,767)
Total other comprehensive (loss) income	481	(39,631)
Balance, end of period	(204,195)	(229,398)
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	(35)	(44)
Accumulated Other Comprehensive (Loss) Income
AOCI [Roll Forward]
Balance, beginning of period	(204,524)	(189,951)
Total other comprehensive (loss) income	392	(39,418)
Balance, end of period	(204,132)	(229,369)
Unrealized gain (loss) on derivatives, net of tax
AOCI [Roll Forward]
Balance, beginning of period	152	(184)
Total other comprehensive (loss) income	(89)	213
Balance, end of period	63	29
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	$ 26	$ (66)

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Revenue From Contracts With Customers (Disaggregation of Revenue, By Application) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Sales by Application
Total	$ 347,174	$ 369,979
Materials processing
Sales by Application
Total	312,969	338,963
Other applications
Sales by Application
Total	$ 34,205	$ 31,016

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Revenue From Contracts With Customers (Disaggregation of Revenue, By Product) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Total	$ 347,174	$ 369,979
High Power Continuous Wave ("CW") Lasers
Disaggregation of Revenue [Line Items]
Total	154,034	167,691
Medium Power CW Lasers
Disaggregation of Revenue [Line Items]
Total	13,839	23,668
Pulsed Lasers
Disaggregation of Revenue [Line Items]
Total	56,147	66,932
Quasi-Continuous Wave ("QCW") Lasers
Disaggregation of Revenue [Line Items]
Total	11,282	12,780
Laser and Non-Laser Systems
Disaggregation of Revenue [Line Items]
Total	41,384	34,597
Other Revenue including Amplifiers, Service, Parts, Accessories and Change in Deferred Revenue
Disaggregation of Revenue [Line Items]
Total	$ 70,488	$ 64,311

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Revenue From Contracts With Customers (Disaggregation of Revenue, By Geography) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Sales by Geography
Total	$ 347,174	$ 369,979
North America
Sales by Geography
Total	76,080	77,225
Germany
Sales by Geography
Total	19,833	27,417
Other Europe
Sales by Geography
Total	80,420	80,000
China
Sales by Geography
Total	101,287	129,748
Japan
Sales by Geography
Total	21,618	12,886
Other
Sales by Geography
Total	43,654	38,675
Rest of World
Sales by Geography
Total	$ 4,282	$ 4,028

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Revenue From Contracts With Customers (Disaggregation of Revenue, By Timing) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Timing of Revenue Recognition
Total	$ 347,174	$ 369,979
Goods and services transferred at a point in time
Timing of Revenue Recognition
Total	333,125	355,415
Goods and services transferred over time
Timing of Revenue Recognition
Total	$ 14,049	$ 14,564

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Revenue From Contracts With Customers (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Concentration Risk [Line Items]
Revenue recognized that was included in the contract liability balance at the beginning of the period	$ 29,012	$ 21,024
One Customer | Customer Concentration Risk | Accounts Receivable
Concentration Risk [Line Items]
Concentration risk, percentage	16.00%		14.00%

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Revenue From Contracts With Customers (Changes in Contract Assets and Contract Liabilities) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021
Contract assets
Contract assets	$ 13,806	$ 9,842	$ 8,620	$ 9,345
Contract assets, change	5,186	497
Contract liabilities
Contract liabilities - current	82,903	94,418	80,068	89,659
Contract liabilities - current, change	2,835	4,759
Contract liabilities - long-term	3,020	2,770	$ 3,142	$ 2,691
Contract liabilities - long-term, change	$ (122)	$ 79

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Revenue From Contracts With Customers (Schedule of Remaining Performance Obligations) (Details) $ in Thousands	Mar. 31, 2023 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 34,196
Revenue expected to be recognized for extended warranty agreements
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	6,220
Revenue to be earned over time from contracts to sell large scale materials processing systems
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	27,976
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 24,965
Remaining performance obligations, expected timing	9 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-04-01 | Revenue expected to be recognized for extended warranty agreements
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 2,656
Remaining performance obligations, expected timing	9 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-04-01 | Revenue to be earned over time from contracts to sell large scale materials processing systems
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 22,309
Remaining performance obligations, expected timing	9 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 7,237
Remaining performance obligations, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01 | Revenue expected to be recognized for extended warranty agreements
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 1,570
Remaining performance obligations, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01 | Revenue to be earned over time from contracts to sell large scale materials processing systems
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 5,667
Remaining performance obligations, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 1,017
Remaining performance obligations, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01 | Revenue expected to be recognized for extended warranty agreements
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 1,017
Remaining performance obligations, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01 | Revenue to be earned over time from contracts to sell large scale materials processing systems
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 0
Remaining performance obligations, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 668
Remaining performance obligations, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01 | Revenue expected to be recognized for extended warranty agreements
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 668
Remaining performance obligations, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01 | Revenue to be earned over time from contracts to sell large scale materials processing systems
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 0
Remaining performance obligations, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 280
Remaining performance obligations, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01 | Revenue expected to be recognized for extended warranty agreements
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 280
Remaining performance obligations, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01 | Revenue to be earned over time from contracts to sell large scale materials processing systems
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 0
Remaining performance obligations, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 29
Remaining performance obligations, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-01-01 | Revenue expected to be recognized for extended warranty agreements
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 29
Remaining performance obligations, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-01-01 | Revenue to be earned over time from contracts to sell large scale materials processing systems
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 0
Remaining performance obligations, expected timing	1 year

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Fair Value Measurements (Assets and Liabilities Measured at Fair Value) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Assets
Total assets	$ 767,085	$ 839,574
Liabilities
Term debt	15,734	16,031
Total liabilities	15,734	16,031
Commercial paper
Assets
Short-term investments	397,022	363,991
Corporate bonds
Assets
Short-term investments	76,530	65,022
U.S. Treasury and agency obligations
Assets
Short-term investments	71,432	39,611
Term deposits
Assets
Short-term investments		10,113
Interest rate swap
Assets
Long-term investments and other assets	83	198
Term deposits
Assets
Short-term investments	3,009
Money market fund deposits
Assets
Cash equivalents	117,102	195,654
Commercial paper
Assets
Cash equivalents	74,846	94,661
Term deposits
Assets
Cash equivalents	27,061	68,827
Corporate bonds
Assets
Cash equivalents		1,497
Level 1
Assets
Total assets	117,102	195,654
Liabilities
Term debt	0	0
Total liabilities	0	0
Level 1 | Commercial paper
Assets
Short-term investments	0	0
Level 1 | Corporate bonds
Assets
Short-term investments	0	0
Level 1 | U.S. Treasury and agency obligations
Assets
Short-term investments	0	0
Level 1 | Term deposits
Assets
Short-term investments		0
Level 1 | Interest rate swap
Assets
Long-term investments and other assets	0	0
Level 1 | Term deposits
Assets
Short-term investments	0
Level 1 | Money market fund deposits
Assets
Cash equivalents	117,102	195,654
Level 1 | Commercial paper
Assets
Cash equivalents	0	0
Level 1 | Term deposits
Assets
Cash equivalents	0	0
Level 1 | Corporate bonds
Assets
Cash equivalents		0
Level 2
Assets
Total assets	649,983	643,920
Liabilities
Term debt	15,734	16,031
Total liabilities	15,734	16,031
Level 2 | Commercial paper
Assets
Short-term investments	397,022	363,991
Level 2 | Corporate bonds
Assets
Short-term investments	76,530	65,022
Level 2 | U.S. Treasury and agency obligations
Assets
Short-term investments	71,432	39,611
Level 2 | Term deposits
Assets
Short-term investments		10,113
Level 2 | Interest rate swap
Assets
Long-term investments and other assets	83	198
Level 2 | Term deposits
Assets
Short-term investments	3,009
Level 2 | Money market fund deposits
Assets
Cash equivalents	0	0
Level 2 | Commercial paper
Assets
Cash equivalents	74,846	94,661
Level 2 | Term deposits
Assets
Cash equivalents	27,061	68,827
Level 2 | Corporate bonds
Assets
Cash equivalents		1,497
Level 3
Assets
Total assets	0	0
Liabilities
Term debt	0	0
Total liabilities	0	0
Level 3 | Commercial paper
Assets
Short-term investments	0	0
Level 3 | Corporate bonds
Assets
Short-term investments	0	0
Level 3 | U.S. Treasury and agency obligations
Assets
Short-term investments	0	0
Level 3 | Term deposits
Assets
Short-term investments		0
Level 3 | Interest rate swap
Assets
Long-term investments and other assets	0	0
Level 3 | Term deposits
Assets
Short-term investments	0
Level 3 | Money market fund deposits
Assets
Cash equivalents	0	0
Level 3 | Commercial paper
Assets
Cash equivalents	0	0
Level 3 | Term deposits
Assets
Cash equivalents	$ 0	0
Level 3 | Corporate bonds
Assets
Cash equivalents		$ 0

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Fair Value Measurements (Narrative) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Fair Value Disclosures [Abstract]
Held-to-maturity impairment	$ 0	$ 0
Allowance for credit loss	0	$ 0
Current portion of long-term debt	$ 15,734,000		$ 16,031,000

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Fair Value Measurements (Schedule of Effective Maturity Dates of Held to Maturity Investments) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Investment maturity
Held-to-maturity maturities, less than 1 year, book value	$ 548,473	$ 479,374
Held-to-maturity maturities, less than 1 year, fair value	$ 547,993	$ 478,737

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Inventories (Components Of Inventories) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Inventory Disclosure [Abstract]
Components and raw materials	$ 308,357	$ 322,506
Work-in-process	39,603	18,911
Finished goods	158,189	167,946
Total	$ 506,149	$ 509,363

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Inventories (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Inventory Disclosure [Abstract]
Inventory provisions	$ 12,096	$ 10,781

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Restructuring (Narrative) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Restructuring Cost and Reserve [Line Items]
Charges	$ 181,000	$ 0
Restructuring
Restructuring Cost and Reserve [Line Items]
Charges	$ 181,000	$ 0

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Restructuring (Summary of Restructuring Accrual) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Restructuring Reserve [Roll Forward]
Charges	$ 181,000	$ 0
Restructuring
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	4,869,000
Charges	181,000	$ 0
Cash payments	(1,758,000)
Foreign exchange adjustment	(367,000)
Restructuring reserve, ending balance	$ 2,925,000

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Goodwill and Intangibles (Schedule of Changes) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Goodwill [Roll Forward]
Balance, beginning of period	$ 38,325	$ 38,609
Goodwill arising from business combinations	0	1,000
Foreign exchange adjustment	63	132
Balance, end of period	$ 38,388	$ 39,741

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Goodwill and Intangibles (Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 95,575	$ 95,658
Accumulated Amortization	(63,471)	(61,538)
Net  Carrying Amount	32,104	34,120
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	48,186	48,155
Accumulated Amortization	(22,816)	(21,734)
Net  Carrying Amount	$ 25,370	$ 26,421
Weighted- Average  Lives	11 years	11 years
Technology, trademark and trade name
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 30,222	$ 30,360
Accumulated Amortization	(23,892)	(23,189)
Net  Carrying Amount	$ 6,330	$ 7,171
Weighted- Average  Lives	7 years	7 years
Production know-how
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 9,133	$ 9,109
Accumulated Amortization	(8,919)	(8,818)
Net  Carrying Amount	$ 214	$ 291
Weighted- Average  Lives	7 years	7 years
Patents
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 8,034	$ 8,034
Accumulated Amortization	(7,844)	(7,797)
Net  Carrying Amount	$ 190	$ 237
Weighted- Average  Lives	8 years	8 years

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Goodwill and Intangibles (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense	$ 2,021	$ 3,021

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Goodwill and Intangibles (Estimated Future Amortization Expense for Intangibles) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
2023	$ 5,873
2024	5,554
2025	4,977
2026	4,216
2027	4,004
Thereafter	7,480
Net  Carrying Amount	$ 32,104	$ 34,120

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Other Liabilities (Components of Accrued Expenses and Other Liabilities) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Payables and Accruals [Abstract]
Contract liabilities	$ 82,903	$ 80,068	$ 94,418	$ 89,659
Accrued compensation	60,311	78,251
Current portion of accrued warranty	28,813	28,504
Short-term lease liabilities	5,037	5,234
Other	12,722	10,707
Total	$ 189,786	$ 202,764

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Other Liabilities (Other Long-Term Liabilities and Deferred Income Taxes) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Payables and Accruals [Abstract]
Accrued warranty	$ 25,026	$ 24,358
Transition tax related to 2017 U.S. tax reform act	19,874	19,874
Long-term lease liabilities	15,869	16,787
Unrealized tax benefits	15,805	15,841
Deferred income taxes	1,477	1,469
Other	5,058	4,945
Total	$ 83,109	$ 83,274

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Product Warranties (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Product Warranty Liability [Line Items]
Accrued warranty reported in accrued expenses and other liabilities	$ 28,813	$ 28,504
Accrued warranty	$ 25,026	$ 24,358
Minimum
Product Warranty Liability [Line Items]
Service warranties on lasers and amplifiers	1 year
Maximum
Product Warranty Liability [Line Items]
Service warranties on lasers and amplifiers	5 years

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Product Warranties (Summary of Product Warranty Activity) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Balance, beginning of period	$ 52,862	$ 49,864
Provision for warranty accrual	4,375	5,071
Warranty claims	(3,798)	(3,707)
Foreign currency translation	400	(882)
Balance, end of period	$ 53,839	$ 50,346

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Financing Arrangements (Borrowings Under Existing Financing Arrangements) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Debt Disclosure [Abstract]
Current portion of long-term debt	$ 15,734	$ 16,031

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Financing Arrangements (Narrative) (Details) € in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)	May 31, 2023 USD ($)	Mar. 31, 2023 EUR (€)	Dec. 31, 2022 USD ($)
Debt Instrument [Line Items]
Total unused credit lines and overdraft facilities	$ 126,894,000
Unsecured Debt | Scenario, Forecast
Debt Instrument [Line Items]
Amount due on long-term note		$ 15,438,000
Unsecured Debt | Interest rate swap
Debt Instrument [Line Items]
Fixed interest rate swap	2.85%		2.85%
Unsecured Debt | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Variable interest rate	1.20%
Long-term notes | Unsecured Debt
Debt Instrument [Line Items]
Amount due on long-term note	$ 15,734,000
Foreign Subsidiary Drawings On US Line Of Credit
Debt Instrument [Line Items]
Line of credit	0			$ 0
Guarantees issued	2,460,000			2,396,000
Foreign Subsidiary Drawings On US Line Of Credit | Letter of Credit
Debt Instrument [Line Items]
Borrowing capacity	75,000,000
Euro line-of-credit
Debt Instrument [Line Items]
Line of credit	0			0
Guarantees issued	1,663,000			1,737,000
Euro line-of-credit | Letter of Credit
Debt Instrument [Line Items]
Borrowing capacity	54,385,000		€ 50,000
Euro overdraft facility
Debt Instrument [Line Items]
Line of credit	0			$ 0
Euro overdraft facility | Letter of Credit
Debt Instrument [Line Items]
Borrowing capacity	$ 1,632,000		€ 1,500

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Derivative Financial Instruments (Fair Value) (Details) - Derivative designated as a cash flow hedge - Interest rate swap - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Derivative, notional amount	$ 15,734	$ 16,031
Other assets
Derivatives, Fair Value [Line Items]
Interest rate swap	$ 83	$ 198

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Derivative Financial Instruments (Derivative Gains (Losses) in the Consolidated Statements of Income Related to Interest Rate Swap Contracts) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Interest rate swap | Derivative designated as a cash flow hedge
Derivative Instruments, Gain (Loss) [Line Items]
Effective portion recognized in other comprehensive income, interest rate swap	$ (115)	$ 279

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Commitments and Contingencies (Details)	Mar. 31, 2023 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Legal proceedings	$ 0

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Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Tax Disclosure [Abstract]
Effective tax rate	27.80%	25.00%
Share-based Payment Arrangement, Expense, Tax Detriment	$ (1,972)
Share-based payment arrangement, tax benefit		$ 252

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Income Taxes (Schedule of Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance, beginning of period	$ 15,841	$ 19,209
Change in prior period positions	42
Change in prior period positions		(249)
Additions for tax positions in current period	0	500
Foreign currency translation	(78)	(541)
Balance, end of period	$ 15,805	$ 18,919

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Net Income Attributable to IPG Photonics Corporation Per Common Share (Computation of Diluted Net Income) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Earnings Per Share [Abstract]
Net income attributable to IPG Photonics Corporation common stockholders	$ 60,135	$ 69,572
Basic weighted average common shares	47,542,071	52,809,654
Dilutive effect of common stock equivalents (in shares)	234,050	289,885
Diluted weighted average common shares	47,776,121	53,099,539
Basic net income attributable to IPG Photonics Corporation per common share (in dollars per share)	$ 1.26	$ 1.32
Diluted net income attributable to IPG Photonics Corporation per common share (in dollars per share)	$ 1.26	$ 1.31

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Net Income Attributable to IPG Photonics Corporation Per Common Share (Anti Dilutive Shares Excluded From EPS) (Details) - shares	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Excluded from computation of diluted weighted average common shares	920,997	709,531
Non-qualified stock options | Non-qualified Plan
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Excluded from computation of diluted weighted average common shares	543,408	472,699
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Excluded from computation of diluted weighted average common shares	346,729	205,272
Performance stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Excluded from computation of diluted weighted average common shares	30,860	31,560

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Net Income Attributable to IPG Photonics Corporation Per Common Share (Narrative) (Details) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($) $ / shares shares
Equity, Class of Treasury Stock [Line Items]
Decrease in weighted average number of shares outstanding treasury stock	(661,816)
August 2022 Purchase Plan
Equity, Class of Treasury Stock [Line Items]
Stock repurchased during period (in shares)	998,769
Share repurchase authorized amount | $	$ 300
Stock repurchase average price (in dollars per share) | $ / shares	$ 112.29

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Subsequent Events (Details) $ in Millions	May 02, 2023 USD ($)
Subsequent Event
Subsequent Event [Line Items]
Share repurchase authorized amount	$ 200