ADTRAN Holdings, Inc. reports preliminary fourth quarter and full-year 2024 financial results

Rhea-AI Summary

ADTRAN Holdings (NASDAQ: ADTN) reported preliminary Q4 2024 results with revenue of $242.9 million, up 7% sequentially and above outlook mid-point. The company achieved GAAP gross margin of 37.6% and non-GAAP gross margin of 42.0%. While reporting a GAAP diluted loss per share of $0.58, non-GAAP diluted earnings per share was $0.00.

Market conditions improved in Q4, driven by increased service provider spending, lower customer inventories, shift from high-risk vendors, and growing fiber access demand. The company expects Q1 2025 revenue between $237.5-252.5 million with non-GAAP operating margin of 0-4%, anticipating growth despite typical seasonality.

Positive

• Revenue up 7% sequentially to $242.9M
• Non-GAAP gross margin at 42.0%
• Operating margin improved sequentially
• Growth across geographies and product lines
• Positive Q1 2025 revenue guidance

Negative

• GAAP diluted loss per share of $0.58
• Non-GAAP earnings per share at $0.00
• Low projected operating margin (0-4%) for Q1 2025

Insights

Financial Analyst

ADTRAN Holdings' Q4 2024 results signal a potential turnaround with revenue of $242.9 million (up 7% sequentially) and improved operating margins, both exceeding management's guidance. The company achieved non-GAAP gross margin of 42.0% and breakeven non-GAAP earnings per share, suggesting operational improvements despite ongoing industry challenges.

The $0.58 GAAP loss per share versus breakeven non-GAAP results indicates significant restructuring costs as ADTRAN continues implementing efficiency initiatives. This wide gap between GAAP and non-GAAP metrics warrants attention, as sustained profitability will ultimately require convergence of these figures.

Most encouraging is management's Q1 2025 guidance of $237.5-252.5 million revenue, which would overcome typical seasonal weakness in the telecom equipment sector. The projected 0-4% non-GAAP operating margin suggests continued operational improvement.

Three key tailwinds are driving ADTRAN's recovery: First, the ongoing global fiber deployment cycle as carriers upgrade networks for increasing bandwidth demands. Second, reduced customer inventory levels after several quarters of destocking. Third, and perhaps most significant, is market share opportunities from what CEO Stanton described as "high-risk vendors" - likely referring to Chinese manufacturers like Huawei and ZTE facing restrictions in Western markets due to security concerns.

For investors, the critical question is whether this represents a sustainable inflection point or merely a temporary improvement. ADTRAN's ability to capitalize on the shift away from Chinese suppliers while improving margins will determine if this operational momentum translates into consistent profitability and shareholder returns. With the stock trading at $10.61 and a market cap of $827 million, current valuation appears to reflect cautious optimism about the company's recovery trajectory.

HUNTSVILLE, Ala.--(BUSINESS WIRE)-- ADTRAN Holdings, Inc. (NASDAQ: ADTN and FSE: QH9) (“ADTRAN Holdings” or the “Company”) today announced its preliminary unaudited financial results for the fourth quarter and full-year ended December 31, 2024.

• Revenue: $242.9 million, up 7% sequentially and above the mid-point of outlook.
• Gross margin: GAAP gross margin: 37.6%; non-GAAP gross margin: 42.0%.
• Operating margin: improved sequentially on a GAAP and non-GAAP basis, above the mid-point of outlook.
• GAAP diluted loss per share of $0.58; non-GAAP diluted earnings per share $0.00.

Adtran Holdings’ Chairman and Chief Executive Officer Tom Stanton stated, “Market conditions continued to improve during the fourth quarter driven by higher service provider spending, lower customer inventories, a continuing shift away from high-risk vendors, and the secular trend of increased fiber access and optical transport. The progress we made during the fourth quarter, including higher sequential and year-over-year revenue and operating margin, was supported by growth across geographies, most product lines, and the continued expansion of our customer base.”

Mr. Stanton added, “We finished 2024 with positive momentum in our business. Based on the current visibility and booking trends, we expect higher revenue in the first quarter of 2025, overcoming typical seasonality.”

Business outlook¹

For the first quarter of 2025, the Company expects revenue to be within a range of $237.5 million to $252.5 million. Non-GAAP operating margin is expected to be within a range of 0% to 4%.

¹ Non-GAAP operating margin (which is calculated as non-GAAP operating income (loss) divided by revenue) is a non-GAAP financial measure. The Company has provided first quarter 2025 guidance with regard to non-GAAP operating margin. This measure excludes from the corresponding GAAP financial measure the effect of adjustments as described below. The Company has not provided a reconciliation of such non-GAAP guidance to guidance presented on a GAAP basis because it cannot predict and quantify without unreasonable effort all of the adjustments that may occur during the period due to the difficulty of predicting the timing and amounts of various items within a reasonable range. In particular, non-GAAP operating margin excludes certain items, including continued restructuring expenses, that will continue to evolve as our business efficiency program is implemented that the Company is unable to quantitatively predict. Depending on the materiality of these items, they could have a significant impact on the Company's GAAP financial results.

Conference call

The Company will hold a conference call to discuss its preliminary fourth quarter 2024 results on Thursday, February 27, 2025, at 9:30 a.m. Central Time, or 4:30 p.m. Central European Time. The Company will webcast this conference call at the events and presentations section of ADTRAN Holdings, Inc. Investor Relations website at https://events.q4inc.com/attendee/811754399 approximately 10 minutes prior to the start of the call, or you may dial 1-888-330-2391 (Toll-Free US) or 1-240-789-2702, and use Conference ID 8936454.

An online replay of the Company’s conference call, as well as the transcript of the call, will be available on the Investor Relations site https://investors.adtran.com/ shortly following the call and will remain available for at least

12 months. For more information, visit investors.adtran.com or email investor.relations@adtran.com.

Upcoming conference schedule
March 11, 2025: Stifel 2025 NYC Technology One-on-One Conference
March 17, 2025: 37^th Annual ROTH Conference
April 1, 2025: Optical Fiber Communication (OFC) Conference and Exhibition

About Adtran

ADTRAN Holdings, Inc. (NASDAQ: ADTN and FSE: QH9) is the parent company of Adtran, Inc., a leading global provider of open, disaggregated networking and communications solutions that enable voice, data, video and internet communications across any network infrastructure. From the cloud edge to the subscriber edge, Adtran empowers communications service providers around the world to manage and scale services that connect people, places and things. Adtran solutions are used by service providers, private enterprises, government organizations and millions of individual users worldwide. ADTRAN Holdings, Inc. is also the majority shareholder of Adtran Networks SE, formerly ADVA Optical Networking SE. Find more at Adtran, LinkedIn and Twitter.

Cautionary note regarding forward-looking statements

Statements contained in this press release and the accompanying earnings call which are not historical facts, such as those relating to expectations regarding future revenue and future non-GAAP operating margin; future service provider spending; future profitability, and growth, including customer acquisition and booking trends, as well as future end market growth; future market trends and customer inventory levels; future operational leverage and cash generation; and ADTRAN Holdings’ strategy and outlook, outlook and financial guidance, are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements can also generally be identified by the use of words such as “believe,” “expect,” “intend,” “estimate,” “anticipate,” “will,” “may,” “could” and similar expressions. In addition, ADTRAN Holdings, through its senior management, may from time to time make forward-looking public statements concerning the matters described herein. All such projections and other forward-looking information speak only as of the date hereof, and ADTRAN Holdings undertakes no duty to publicly update or revise such forward-looking information, whether as a result of new information, future events, or otherwise, except to the extent as may be required by law. All such forward-looking statements are necessarily estimates and reflect management’s best judgment based upon current information. Actual events or results may differ materially from those anticipated in these forward-looking statements as a result of a variety of factors. While it is impossible to identify all such factors, factors which have caused and may in the future cause actual events or results to differ materially from those estimated by ADTRAN Holdings include, but are not limited to: (i) risks and uncertainties relating to ADTRAN Holdings’ ability to continue to reduce expenditures and the impact of such reductions on its financial results and financial condition; (ii) risks and uncertainties relating to our ability to comply with the covenants set forth in our credit agreement, to satisfy our payment obligations to Adtran Networks’ minority shareholders under the Domination and Profit and Loss Transfer Agreement between us and Adtran Networks (the “DPLTA”), and to make payments to Adtran Networks in order to absorb its annual net loss pursuant to the DPLTA; (iii) the risk of fluctuations in revenue due to lengthy sales and approval processes required by major and other service providers for new products, as well as shifting customer spending patterns; (iv) risks and uncertainties relating to our level of indebtedness; (v) risks and uncertainties relating to ongoing material weaknesses in our internal control over financial reporting; (vi) risks posed by potential breaches of information systems and cyber-attacks; (vii) the risk that ADTRAN Holdings may not be able to effectively compete, including through product improvements and development; and (viii) other risks set forth in ADTRAN Holdings’ public filings made with the Securities and Exchange Commission (“SEC”), including its most recent Annual Report on Form 10-K and subsequent quarterly reports on Form 10-Q or other securities filings, and the risks to be disclosed in its upcoming Annual Report on Form 10-K for the year ended December 31, 2024, to be filed with the SEC.

Additionally, the financial measures presented herein are preliminary estimates, remain subject to our internal controls and procedures, and are subject to risks and uncertainties, including, among others, changes in connection with quarter-end adjustments. Any variation between the Company’s actual results and the preliminary financial information set forth herein may be material.

Explanation of use of non-GAAP financial measures

Set forth in the tables below are reconciliations of gross profit, gross margin, operating expenses, operating loss, other (expense) income, net loss inclusive of the non-controlling interest, net income attributable to the non-controlling interest, net loss attributable to the Company, and loss per share - basic and diluted, attributable to the Company, and net cash provided by (used in) operating activities, in each case as reported based on generally accepted accounting principles in the United States (“GAAP”), to non-GAAP gross profit, non-GAAP gross margin, non-GAAP operating expenses, non-GAAP operating income (loss), non-GAAP other expense, non-GAAP net income (loss) inclusive of the non-controlling interest, non-GAAP net income (loss) attributable to the Company, non-GAAP net earnings (loss per share) - basic and diluted, attributable to the Company, and free cash flow, respectively. Such non-GAAP measures exclude acquisition-related expenses, amortization and adjustments (consisting of intangible amortization of backlog, developed technology, customer relationships, and trade names acquired in connection with business combinations and amortization of inventory fair value adjustments as well as legal and advisory fees related to a potential significant transaction), stock-based compensation expense, restructuring expenses, integration expenses, deferred compensation adjustments, goodwill impairments, amortization of pension actuarial losses, the tax effect of these adjustments to net loss and purchases of property, plant and equipment. These measures are used by management in our ongoing planning and annual budgeting processes. Additionally, we believe the presentation of these non-GAAP measures, when combined with the presentation of the most directly comparable GAAP financial measure, is beneficial to the overall understanding of ongoing operating performance of the Company. These non-GAAP financial measures are not prepared in accordance with, or an alternative for, GAAP and therefore should not be considered in isolation or as a substitution for analysis of our results as reported under GAAP. Additionally, our calculation of non-GAAP measures may not be comparable to similar measures calculated by other companies.

Published by
ADTRAN Holdings, Inc.
www.adtran.com

Condensed Consolidated Balance Sheets (Preliminary, Unaudited) (In thousands)
ASSETS		December 31, 2024				December 31, 2023
Current Assets
Cash and cash equivalents		$	77,567			$	87,167
Accounts receivable, net			178,030				216,445
Other receivables			9,775				17,450
Income tax receivable			4,355				7,933
Inventory, net			269,337				362,295
Assets held for sale			11,901				—
Prepaid expenses and other current assets			58,534				45,566
Total Current Assets			609,499				736,856
Property, plant and equipment, net			102,942				123,020
Deferred tax assets, net			17,826				25,787
Goodwill			52,918				353,415
Intangibles, net			284,893				327,985
Other non-current assets			78,128				87,706
Long-term investments			32,060				27,743
Total Assets		$	1,178,266			$	1,682,512
LIABILITIES AND EQUITY
Current Liabilities
Accounts payable		$	170,451			$	162,922
Unearned revenue			52,701				46,731
Accrued expenses and other liabilities			35,704				36,204
Accrued wages and benefits			32,853				27,030
Income tax payable, net			830				5,221
Total Current Liabilities			292,539				278,108
Non-current revolving credit agreement outstanding			189,576				195,000
Deferred tax liabilities			30,690				35,655
Non-current unearned revenue			22,065				25,109
Non-current pension liability			8,983				12,543
Deferred compensation liability			33,203				29,039
Non-current lease obligations			25,925				31,420
Other non-current liabilities			17,928				28,657
Total Liabilities			620,909				635,531
Redeemable Non-Controlling Interest			422,943				442,152
Equity
Common stock			795				790
Additional paid-in capital			808,913				795,304
Accumulated other comprehensive income			10,897				47,465
Retained deficit			(680,993	)			(232,905	)
Treasury stock			(5,198	)			(5,825	)
Total Equity			134,414				604,829
Total Liabilities and Equity		$	1,178,266			$	1,682,512

Condensed Consolidated Statements of Loss (Preliminary, Unaudited) (In thousands, except per share amounts)
		Three Months Ended								Twelve Months Ended
		December 31,								December 31,
		2024				2023				2024				2023
Revenue
Network Solutions		$	197,009			$	180,405			$	738,964			$	974,389
Services & Support			45,843				45,074				183,756				174,711
Total Revenue			242,852				225,479				922,720				1,149,100
Cost of Revenue
Network Solutions			134,184				126,248				511,070				722,582
Network Solutions - charges and inventory write-down			—				3,270				8,597				24,313
Services & Support			17,435				17,496				72,739				69,142
Total Cost of Revenue			151,619				147,014				592,406				816,037
Gross Profit			91,233				78,465				330,314				333,063
Selling, general and administrative expenses			57,156				61,262				233,369				258,149
Research and development expenses			49,209				54,818				221,463				258,311
Goodwill impairment			—				—				292,583				37,874
Operating Loss			(15,132	)			(37,615	)			(417,101	)			(221,271	)
Interest and dividend income			1,631				1,157				3,058				2,340
Interest expense			(4,870	)			(4,441	)			(22,053	)			(16,299	)
Net investment (loss) gain			(920	)			1,683				3,587				2,754
Other income (expense), net			687				(3,448	)			246				1,266
Loss Before Income Taxes			(18,604	)			(42,664	)			(432,263	)			(231,210	)
Income tax expense			(24,906	)			(64,632	)			(8,785	)			(28,133	)
Net Loss		$	(43,510	)		$	(107,296	)		$	(441,048	)		$	(259,343	)
Net Income attributable to non-controlling interest			2,406				2,566				9,824				6,946
Net Loss attributable to ADTRAN Holdings, Inc.		$	(45,916	)		$	(109,862	)		$	(450,872	)		$	(266,289	)
Weighted average shares outstanding – basic			79,091				78,530				78,928				78,416
Weighted average shares outstanding – diluted			79,091				78,530				78,928				78,416
Loss per common share attributable to ADTRAN Holdings, Inc. – basic		$	(0.58	)	(1)	$	(1.40	)		$	(5.67	)	(1)	$	(3.39	)
Loss per common share attributable to ADTRAN Holdings, Inc. – diluted		$	(0.58	)	(1)	$	(1.40	)		$	(5.67	)	(1)	$	(3.39	)

^{(1) Loss per common share attributable to ADTRAN Holdings, Inc. - basic and diluted - reflects a $5 thousand effect of redemption for the three months ended December 31, 2024 and $3.0 million effect of redemption of RNCI for the year ended December 31, 2024.}

Condensed Consolidated Statements of Cash Flows (Preliminary, Unaudited) (In thousands)
		Twelve Months Ended December 31,
		2024				2023
Cash flows from operating activities:
Net Loss		$	(441,048	)		$	(259,343	)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization			90,985				112,949
Goodwill impairment			292,583				37,874
Amortization of debt issuance cost			3,950				862
Accretion on available-for-sale investments, net			—				(22	)
Gain on investments			(5,030	)			(2,900	)
Net loss on disposal of property, plant and equipment			1,371				458
Stock-based compensation expense			15,342				16,016
Deferred income taxes			2,247				15,558
Inventory write down			4,135				24,313
Inventory reserves			3,980				25,546
Other, net			—				(2,942	)
Change in operating assets and liabilities:
Accounts receivable, net			46,108				65,612
Other receivables			10,713				10,315
Income taxes receivable			648				(2,637	)
Inventory			75,171				20,537
Prepaid expenses other current assets and other assets			(10,718	)			(29,883	)
Accounts payable			11,784				(91,907	)
Accrued expenses and other liabilities			5,519				17,929
Income taxes payable, net			(4,670	)			(3,939	)
Net cash provided by (used in) operating activities			103,070				(45,604	)
Cash flows from investing activities:
Purchases of property, plant and equipment			(32,454	)			(43,121	)
Purchases of intangibles - developed technology			(30,671	)			—
Proceeds from sales and maturities of available-for-sale investments			1,240				10,567
Purchases of available-for-sale investments			(268	)			(868	)
(Payments) Proceeds from beneficial interests in securitized accounts receivable			(55	)			1,218
Net cash used in investing activities			(62,208	)			(32,204	)
Cash flows from financing activities:
Tax withholdings related to stock-based compensation settlements			(1,143	)			(6,458	)
Proceeds from stock option exercises			824				540
Dividend payments			—				(21,237	)
Proceeds from receivables purchase agreement			68,556				14,099
Repayments on receivables purchase agreement			(83,772	)			—
Proceeds from draw on revolving credit agreements			26,000				163,733
Repayment of revolving credit agreements			(31,000	)			(64,987	)
Redemption of redeemable non-controlling interest			(17,398	)			(1,224	)
Payment of annual recurring compensation to non-controlling interest			(10,084	)			—
Payment of debt issuance cost			(1,994	)			(708	)
Repayment of notes payable			—				(24,891	)
Net cash (used in) provided by financing activities			(50,011	)			58,867
Net decrease in cash and cash equivalents			(9,149	)			(18,941	)
Effect of exchange rate changes			(451	)			(2,536	)
Cash and cash equivalents, beginning of year			87,167				108,644
Cash and cash equivalents, end of year		$	77,567			$	87,167
Supplemental disclosure of cash financing activities
Cash paid for interest		$	20,884			$	12,596
Cash paid for income taxes		$	10,384			$	18,552
Cash used in operating activities related to operating leases		$	9,274			$	9,682
Supplemental disclosure of non-cash investing activities
Right-of-use assets obtained in exchange for lease obligations		$	5,317			$	17,865
Purchases of property, plant and equipment included in accounts payable		$	2,635			$	1,298
Redemption of redeemable non-controlling interest		$	2,986			$	371

Supplemental Information Reconciliation of Preliminary Gross Profit and Preliminary Gross Margin to Preliminary Non-GAAP Gross Profit and Preliminary Non-GAAP Gross Margin (Unaudited) (In thousands)
		Three Months Ended													Twelve Months Ended
		December 31, 2024				September 30, 2024				December 31, 2023					December 31, 2024				December 31, 2023
Total Revenue		$	242,852			$	227,704			$	225,479				$	922,720			$	1,149,100
Cost of Revenue		$	151,619			$	142,453			$	147,014				$	592,406			$	816,037
Acquisition-related expenses, amortization and adjustments(1)			(9,980	)			(10,276	)			(10,048	)				(40,497	)			(89,602	)
Stock-based compensation expense			(317	)			(270	)			(440	)				(1,142	)			(1,294	)
Restructuring expenses(2)			(538	)			(7	)			(5,517	)				(14,580	)			(27,223	)
Integration expenses(3)			123				(34	)			39					19				(115	)
Non-GAAP Cost of Revenue		$	140,907			$	131,866			$	131,048				$	536,206			$	697,803
Gross Profit		$	91,233			$	85,251			$	78,465				$	330,314			$	333,063
Non-GAAP Gross Profit		$	101,945			$	95,838			$	94,431				$	386,514			$	451,297
Gross Margin			37.6	%			37.4	%			34.8	%				35.8	%			29.0	%
Non-GAAP Gross Margin			42.0	%			42.1	%			41.9	%				41.9	%			39.3	%

^{(1) Includes intangible amortization of backlog, inventory fair value adjustments, developed technology, customer relationships, and trade names acquired in connection with business combinations. We incur charges relating to the amortization of intangible assets and exclude these charges for purposes of calculating our non-GAAP measures. Such charges are significantly impacted by the timing and magnitude of our acquisitions. We exclude these charges for the purpose of calculating our non-GAAP measures, primarily because they are noncash expenses and our internal benchmarking analyses evidence that many industry participants and peers present non-GAAP financial measures excluding intangible asset amortization. Although this does not directly affect our cash position, the loss in value of intangible assets over time can have a material impact on the equivalent GAAP earnings measure.}

^{(2) Includes expenses for restructuring program designed to optimize the assets and business processes following the business combination with Adtran Networks SE. These expenses include inventory write down and other charges of $8.6 million and other expenses of $0.6 million for the twelve months ended December 31, 2024, incurred as a result of a strategy shift which included discontinuance of certain product lines in connection with the Business Efficiency Program. The restructuring program commenced upon the closing of the business combination with Adtran Networks SE and was substantially completed in late 2024. Additionally, as part of the Business Efficiency Program, management determined to close a facility in Greifswald, Germany which occurred in December 2024. These expenses include restructuring wage charges of $5.4 million for the twelve months ended December 31, 2024.}

^{(3) Includes expenses related to the Company's one-time integration bonus program in connection with synergy targets as a result of the business combination with Adtran Networks SE.}

Supplemental Information Reconciliation of Preliminary Operating Expenses to Preliminary Non-GAAP Operating Expenses (Unaudited) (In thousands)
	Three Months Ended												Twelve Months Ended
	December 31, 2024				September 30, 2024				December 31, 2023				December 31, 2024				December 31, 2023
Operating Expenses	$	106,365			$	109,235			$	116,080			$	747,415			$	554,334
Acquisition-related expenses, amortization and adjustments (1)		(5,294	)	(2)		(5,054	)	(7)		(4,150	)	(11)		(22,462	)	(15)		(17,666	)	(20)
Stock-based compensation expense		(3,351	)	(3)		(3,126	)	(8)		(3,181	)	(12)		(13,245	)	(16)		(13,864	)	(21)
Restructuring expenses		(3,567	)	(4)		(5,930	)	(9)		(7,859	)	(13)		(30,101	)	(17)		(19,331	)	(22)
Integration expenses		(587	)	(5)		(333	)	(10)		(1,928	)	(14)		(1,930	)	(18)		(4,825	)	(23)
Deferred compensation adjustments(6)		451				(1,471	)			(1,324	)			(3,808	)			390
Goodwill impairment		—				—				—				(292,583	)	(19)		(37,874	)	(24)
Non-GAAP Operating Expenses	$	94,017			$	93,321			$	97,638			$	383,286			$	461,164

^{(1) We incur charges relating to the amortization of intangible assets and exclude these charges for purposes of calculating our non-GAAP measures. Such charges are significantly impacted by the timing and magnitude of our acquisitions. We exclude these charges for the purpose of calculating our non-GAAP measures, primarily because they are noncash expenses and our internal benchmarking analyses evidence that many industry participants and peers present non-GAAP financial measures excluding intangible asset amortization. Although this does not directly affect our cash position, the loss in value of intangible assets over time can have a material impact on the equivalent GAAP earnings measure.}

^{(2) Includes $4.3M of intangible amortization of developed technology, customer relationships, and trade names acquired in connection with business combinations and $1.0 million of legal and advisory fees related to a potential strategic transaction which are included in selling, general and administrative expenses on the condensed consolidated statements of loss.}

^{(3) $2.4 million is included in selling, general and administrative expenses and $1.0 million is included in research and development expenses on the condensed consolidated statements of loss.}

^{(4) $1.2 million is included in selling, general and administrative expenses and $2.4 million is included in research and development expenses on the condensed consolidated statements of loss. Includes expenses for restructuring program designed to optimize the assets and business processes following the business combination with Adtran Networks SE. The restructuring program commenced upon the closing of the business combination with Adtran Networks SE and was substantially completed in late 2024. Additionally, as part of the Business Efficiency Program, management determined to close a facility in Greifswald, Germany which occurred in December 2024.}

^{(5) $0.6 million is included in selling, general and administrative expenses and less than $0.1 million is included in research and development expenses on the condensed consolidated statements of loss, and is primarily related to the Company's one-time integration bonus program in connection with synergy targets as a result of the business combination with Adtran Networks SE.}

^{(6) Includes non-cash change in fair value of equity investments held in the ADTRAN Holdings, Inc. Deferred Compensation Program for Employees, all of which is included in selling, general and administrative expenses on the condensed consolidated statement of loss.}

^{(7) Includes $4.0M of intangible amortization of developed technology, customer relationships, and trade names acquired in connection with business combinations and $0.6 million of legal and advisory fees related to a potential strategic transaction which are both included in selling, general and administrative expenses and $0.5 million is included in research and development expenses on the condensed consolidated statements of loss.}

^{(8) $2.2 million is included in selling, general and administrative expenses and $0.9 million is included in research and development expenses on the condensed consolidated statements of loss.}

^{(9) $2.7 million is included in selling, general and administrative expenses and $3.2 million is included in research and development expenses on the condensed consolidated statements of loss. Includes expenses of $3.2 million of wage related and other charges due to the Greifswald facility closure of which $0.8 million is included in selling, general and administrative and $2.4 million is included in research and development expenses on the condensed consolidated statements of loss. Includes expenses for restructuring program designed to optimize the assets and business processes following the business combination with Adtran Networks SE. The restructuring program commenced upon the closing of the business combination with Adtran Networks SE and was substantially completed in late 2024. Additionally, as part of the Business Efficiency Program, management determined to close a facility in Greifswald, Germany which occurred in December 2024.}

^{(10) $0.3 million is included in selling, general and administrative expenses on the condensed consolidated statements of loss, and is primarily related to the Company's one-time integration bonus program in connection with synergy targets as a result of the business combination with Adtran Networks SE.}

^{(11) Includes intangible amortization of developed technology, customer relationships, and trade names acquired in connection with business combinations, of which $3.7 million is included in selling, general and administrative expenses and $0.5 million is included in research and development expenses on the condensed consolidated statements of loss.}

^{(12) $2.3 million is included in selling, general and administrative expenses and $0.9 million is included in research and development expenses on the condensed consolidated statements of loss.}

^{(13) $4.6 million is included in selling, general and administrative expenses and $3.2 million is included in research and development expenses on the condensed consolidated statements of loss. Includes expenses for restructuring program designed to optimize the assets and business processes following the business combination with Adtran Networks SE. The restructuring program commenced upon the closing of the business combination with Adtran Networks SE and was substantially completed in late 2024. Additionally, as part of the Business Efficiency Program, management determined to close a facility in Greifswald, Germany which occurred in December 2024.}

^{(14) $1.9 million is included in selling, general and administrative expenses and $0.02 million is included in research and development expenses on the condensed consolidated statements of loss. Includes legal and advisory fees totaling $1.2 million related to a contemplated capital raise transaction that are recorded in selling, general and administrative expenses. Includes expenses totaling $0.4 million related to the Company's one-time integration bonus program in connection with synergy targets as a result of the business combination with Adtran Networks SE of which $0.4 million are included in selling, general and administrative expenses and $0.02 million are included in research and development expenses. The integration bonus expense of $0.4 million includes $0.2 million of stock compensation expense. Additionally, includes fees relating to the expansion of internal controls at Adtran Networks and the implementation of the DPLTA.}

^{(15) Includes $17.6M of intangible amortization of developed technology, customer relationships, and trade names acquired in connection with business combinations and $4.9 million of legal and advisory fees related to a potential strategic transaction which are included in selling, general and administrative expenses on the condensed consolidated statements of loss.}

^{(16) $9.4 million is included in selling, general and administrative expenses and $3.8 million is included in research and development expenses on the condensed consolidated statements of loss.}

^{(17) $9.1 million is included in selling, general and administrative expenses and $21.0 million is included in research and development expenses on the condensed consolidated statements of loss. Includes expenses for restructuring program designed to optimize the assets and business processes following the business combination with Adtran Networks SE. The restructuring program commenced upon the closing of the business combination with Adtran Networks SE and was substantially completed in late 2024. Additionally, as part of the Business Efficiency Program, management determined to close a facility in Greifswald, Germany which occurred in December 2024.}

^{(18) $1.8 million is included in selling, general and administrative expenses and $0.1 million is included in research and development expenses on the condensed consolidated statements of loss, and is primarily related to the Company's one-time integration bonus program in connection with synergy targets as a result of the business combination with Adtran Networks SE.}

^{(19) Non-cash impairment of goodwill in our Network Solutions reporting unit, necessitated by factors such as a decrease in the Company's market capitalization, cautious service provider spending due to economic uncertainty and continued elevated customer inventory adjustments.}

^{(20) Includes intangible amortization of developed technology, customer relationships, and trade names acquired in connection with business combinations, of which $15.8 million is included in selling, general and administrative expenses and $1.9 million is included in research and development expenses on the condensed consolidated statements of loss.}

^{(21) $9.8 million is included in selling, general and administrative expenses and $4.0 million is included in research and development expenses on the condensed consolidated statements of loss.}

^{(22) $11.6 million is included in selling, general and administrative expenses and $7.7 million is included in research and development expenses on the condensed consolidated statements of loss. Includes expenses for restructuring program designed to optimize the assets and business processes following the business combination with Adtran Networks SE. The restructuring program commenced upon the closing of the business combination with Adtran Networks SE and was substantially completed in late 2024. Additionally, as part of the Business Efficiency Program, management determined to close a facility in Greifswald, Germany which occurred in December 2024.}

^{(23) $4.8 million is included in selling, general and administrative expenses and $0.1 million is included in research and development expenses on the condensed consolidated statements of loss. Includes expenses related to the integration bonus program and fees relating to the expansion of internal controls at Adtran Networks and the implementation of the DPLTA. Additionally, includes legal and advisory fees totaling $1.2 million related to a contemplated capital raise transaction that are recorded in selling, general and administrative expenses.}

^{(24) Includes non-cash goodwill impairment charge related to our Services and Support reporting unit. The impairment primarily resulted from a decrease in projected revenue growth rates and EBITDA margins.}

Supplemental Information Reconciliation of Preliminary Operating Loss to Preliminary Non-GAAP Operating Income (Loss) (Unaudited) (In thousands)
	Three Months Ended												Twelve Months Ended
	December 31, 2024				September 30, 2024				December 31, 2023				December 31, 2024				December 31, 2023
Operating Loss	$	(15,132	)		$	(23,984	)		$	(37,615	)		$	(417,101	)		$	(221,271	)
Acquisition related expenses, amortizations and adjustments(1)		15,274				15,330				14,198				62,959				107,267
Stock-based compensation expense		3,668				3,396				3,621				14,387				15,158
Restructuring expenses(2)		4,105				5,936				13,376				44,681				46,554
Integration expenses(3)		464				367				1,890				1,911				4,941
Deferred compensation adjustments(4)		(451	)			1,471				1,324				3,808				(390	)
Goodwill impairment		—				—				—				292,583		(5)		37,874		(6)
Non-GAAP Operating Income (Loss)	$	7,928			$	2,516			$	(3,206	)		$	3,228			$	(9,867	)

^{(1) Includes intangible amortization of backlog, inventory fair value adjustments, developed technology, customer relationships, and trade names acquired in connection with business combinations. We incur charges relating to the amortization of intangible assets and exclude these charges for purposes of calculating our non-GAAP measures. Such charges are significantly impacted by the timing and magnitude of our acquisitions. We exclude these charges for the purpose of calculating our non-GAAP measures, primarily because they are noncash expenses and our internal benchmarking analyses evidence that many industry participants and peers present non-GAAP financial measures excluding intangible asset amortization. Although this does not directly affect our cash position, the loss in value of intangible assets over time can have a material impact on the equivalent GAAP earnings measure.}

^{(2) Includes expenses for restructuring program designed to optimize the assets and business processes following the business combination with Adtran Networks SE. The restructuring program commenced upon the closing of the business combination with Adtran Networks SE and was substantially completed in late 2024. Additionally, as part of the Business Efficiency Program, management determined to close a facility in Greifswald, Germany which occurred in December 2024.}

^{(3) Includes expenses related to the Company's one-time integration bonus program in connection with synergy targets as a results of the business combination with Adtran Networks SE. Includes fees incurred for the expansion of internal controls at Adtran Networks SE and the implementation of the DPTLA.}

^{(4) Includes non-cash change in fair value of equity investments held in the ADTRAN Holdings, Inc. Deferred Compensation Program for Employees, all of which is included in selling, general and administrative expenses on the condensed consolidated statement of loss.}

^{(5) Non-cash impairment of goodwill in our Network Solutions reporting unit, necessitated by factors such as a decrease in the Company's market capitalization, cautious service provider spending due to economic uncertainty and continued elevated customer inventory adjustments.}

^{(6) Non-cash goodwill impairment charge related to our Services and Support reporting unit. The impairment primarily resulted from a decrease in projected revenue growth rates and EBITDA margins.}

Supplemental Information Reconciliation of Preliminary Other Expense to Preliminary Non-GAAP Other Expense (Unaudited) (In thousands)
		Three Months Ended													Twelve Months Ended
		December 31, 2024				September 30, 2024				December 31, 2023					December 31, 2024				December 31, 2023
Interest and dividend income		$	1,631			$	664			$	1,157				$	3,058			$	2,340
Interest expense			(4,870	)			(5,679	)			(4,441	)				(22,053	)			(16,299	)
Net investment (loss) gain			(920	)			1,382				1,683					3,587				2,754
Other income (expense), net			687				(850	)			(3,448	)				246				1,266
Total Other Expense		$	(3,472	)		$	(4,483	)		$	(5,049	)			$	(15,162	)		$	(9,939	)
Deferred compensation adjustments (1)			1,090				(1,294	)			(1,590	)				(3,539	)			(2,977	)
Pension expense (2)			7				7				6					28				26
Non-GAAP Other Expense		$	(2,375	)		$	(5,770	)		$	(6,633	)			$	(18,673	)		$	(12,890	)

^{(1) Includes non-cash change in fair value of equity investments held in the ADTRAN Holdings, Inc. Deferred Compensation Program for Employees.}

^{(2) Includes amortization of actuarial losses related to the Company's pension plan for employees in certain foreign countries.}

Supplemental Information   Reconciliation of Preliminary Net Loss inclusive of Non-Controlling Interest to Preliminary Non-GAAP Net Income (Loss) inclusive of Non-Controlling Interest (Unaudited) and Reconciliation of Preliminary Net Income attributable to Non-Controlling Interest to Preliminary Non-GAAP Net Income attributable to Non-Controlling Interest (Unaudited) and Reconciliation of Preliminary Net Loss attributable to ADTRAN Holdings, Inc. and Preliminary Loss per Common Share attributable to ADTRAN Holdings, Inc. – Basic and Diluted to Preliminary Non-GAAP Net Income (Loss) attributable to ADTRAN Holdings, Inc. and Preliminary Non-GAAP Earnings (Loss) per Common Share attributable to ADTRAN Holdings, Inc. – Basic and Diluted (Unaudited) (In thousands, except per share amounts)
		Three Months Ended													Twelve Months Ended
		December 31, 2024				September 30, 2024				December 31, 2023					December 31, 2024				December 31, 2023
Net Loss attributable to ADTRAN Holdings, Inc. common stockholders		$	(45,911	)		$	(28,263	)		$	(109,592	)			$	(447,886	)		$	(266,289	)
Effect of redemption of RNCI(1)			(5	)			(2,976	)			—					(2,986	)			—
Net Loss attributable to ADTRAN Holdings, Inc.		$	(45,916	)		$	(31,239	)		$	(109,592	)			$	(450,872	)		$	(266,289	)
Net Income attributable to non-controlling interest(2)			2,407				2,382				2,566					9,824				6,946
Net Loss inclusive of non-controlling interest		$	(43,509	)		$	(28,857	)		$	(107,026	)			$	(441,048	)		$	(259,343	)
Acquisition related expenses, amortization and adjustments (3)			15,274				15,330				14,198					62,959				107,267
Stock-based compensation expense			3,668				3,396				3,621					14,387				15,158
Deferred compensation adjustments(4)			639				177				(267	)				269				(3,368	)
Pension adjustments(5)			7				7				6					28				26
Restructuring expenses(6)			4,105				5,936				13,376					44,681				46,554
Integration expenses(7)			464				367				1,890					1,911				4,941
Goodwill impairment			—				—				—					292,583				37,874
Tax effect of adjustments to net loss(8)			21,804				(712	)			62,221					2,782				12,076
Non-GAAP Net Income (Loss) inclusive of non-controlling interest		$	2,451			$	(4,356	)		$	(11,981	)			$	(21,448	)		$	(38,815	)
Net Income attributable to non-controlling interest(2)			2,407				2,382				2,566					9,824				8,475
Non-GAAP Net Income (Loss) attributable to ADTRAN Holdings, Inc.		$	45			$	(6,738	)		$	(14,547	)			$	(31,272	)		$	(47,290	)
Effect of redemption of RNCI (1)			5				2,976				—					2,986				—
Non-GAAP Net Income (Loss) attributable to ADTRAN Holdings, Inc. common stockholders		$	50			$	(3,762	)		$	(14,547	)			$	(28,286	)		$	(47,290	)
GAAP Net Income attributable to non-controlling interest (2)		$	2,407			$	2,382			$	2,566				$	9,824			$	6,946
Acquisition related expenses, amortizations and adjustments(3)			—				—				—					—				1,457
Restructuring expenses(6)			—				—				—					—				29
Integration expenses(7)			—				—				—					—				6
Stock-based compensation expense			—				—				—					—				37
Pension adjustments(5)			—				—				—					—				—
Non-GAAP Net Income attributable to non-controlling interest (2)		$	2,407			$	2,382			$	2,566				$	9,824			$	8,475
Weighted average shares outstanding – basic			79,091				78,952				78,530					78,928				78,416
Weighted average shares outstanding – diluted			79,091				78,952				78,530					78,928				78,416
Loss per common share attributable to ADTRAN Holdings, Inc. - basic		$	(0.58	)		$	(0.36	)		$	(1.40	)			$	(5.67	)		$	(3.39	)
Loss per common share attributable to ADTRAN Holdings, Inc. - diluted		$	(0.58	)		$	(0.36	)		$	(1.40	)			$	(5.67	)		$	(3.39	)
Non-GAAP Earnings (Loss) per common share attributable to ADTRAN Holdings, Inc. - basic		$	0.00			$	(0.05	)		$	(0.19	)			$	(0.36	)		$	(0.60	)
Non-GAAP Earnings (Loss) per common share attributable to ADTRAN Holdings, Inc. - diluted		$	0.00			$	(0.05	)		$	(0.19	)			$	(0.36	)		$	(0.60	)

^{(1) Loss per common share attributable to ADTRAN Holdings, Inc. - basic and diluted - reflects a $5 thousand and $3.0 million effect of redemption for the three months ended December 31, 2024 and September 30, 2024 respectively and $3.0 million effect of redemption of RNCI for the year ended December 31, 2024.}

^{(2) Represents the non-controlling interest portion of the Company's ownership of Adtran Networks pre-DPLTA and the annual recurring compensation earned by redeemable non-controlling interests and accrued by the Company post-DPLTA.}

^{(3) We incur charges relating to the amortization of intangible assets and exclude these charges for purposes of calculating our non-GAAP measures. Such charges are significantly impacted by the timing and magnitude of our acquisitions. We exclude these charges for the purpose of calculating our non-GAAP measures, primarily because they are noncash expenses and our internal benchmarking analyses evidence that many industry participants and peers present non-GAAP financial measures excluding intangible asset amortization. Although this does not directly affect our cash position, the loss in value of intangible assets over time can have a material impact on the equivalent GAAP earnings measure.}

^{(4) Includes non-cash change in fair value of equity investments held in deferred compensation plans offered to certain employees.}

^{(5) Includes amortization of actuarial losses related to the Company's pension plan for employees in certain foreign countries.}

^{(6) Includes expenses for restructuring program designed to optimize the assets and business processes following the business combination with Adtran Networks SE. The restructuring program commenced upon the closing of the business combination with Adtran Networks SE and was substantially completed in late 2024. Additionally, as part of the Business Efficiency Program, management determined to close a facility in Greifswald, Germany which occurred in December 2024.}

^{(7) Includes expenses related to the Company's one-time integration bonus program in connection with synergy targets as a result of the business combination with Adtran Networks SE.}

^{(8) Represents the tax effect of non-GAAP adjustments. Beginning in the period ended September 30, 2024, the Company changed its method of calculating non-GAAP income taxes by applying blended statutory tax rates to non-GAAP losses before income taxes in order to include current and deferred income tax expenses that are commensurate with the non-GAAP measure of profitability. The blended statutory tax rate is calculated using 0%, resulting in no tax benefits net of impact of valuation allowance, for the loss jurisdiction’s non-GAAP losses before income taxes and 30% for all remaining jurisdictions’ non-GAAP income before income taxes. Prior periods have been adjusted to reflect the application of blended statutory tax rates, net of impact of valuation allowance, to non-GAAP losses before income taxes as opposed to the previous application of blended statutory and effective tax rates to separate non-GAAP adjustments. We previously reported the tax effect of the adjustment to non-GAAP net loss under the prior method of $8.7 million and $57.8 million for the three and twelve months ended December 31, 2023.}

Supplemental Information Reconciliation of Preliminary Net Cash Provided By (Used In) Operating Activities to Preliminary Free Cash Flow (Unaudited) (In thousands)
		Three Months Ended													Twelve Months Ended
		December 31,				September 30,				December 31,					December 31,				December 31,
		2024				2024				2023					2024				2023
Net Cash provided by (used in) operating activities		$	4,544			$	42,030			$	(16,290	)			$	103,070			$	(45,604	)
Purchases of property, plant and equipment and developed technologies(1)			(14,942	)			(18,814	)			(9,447	)				(63,125	)			(43,121	)
Free cash flow		$	(10,398	)		$	23,216			$	(25,737	)			$	39,945			$	(88,725	)

^{(1) Purchases related to capital expenditures and developed technologies.}

View source version on businesswire.com: https://www.businesswire.com/news/home/20250226015068/en/

For media

Gareth Spence

+44 1904 699 358

public.relations@adtran.com

For investors

Peter Schuman, IRC

+1 256 963 6305

investor.relations@adtran.com

Source: ADTRAN Holdings, Inc.

FAQ

What was ADTN's revenue performance in Q4 2024?

ADTN reported Q4 2024 revenue of $242.9 million, representing a 7% sequential increase and exceeding the mid-point of their outlook.

What is ADTRAN Holdings' revenue guidance for Q1 2025?

ADTN expects Q1 2025 revenue to be between $237.5 million and $252.5 million, with a non-GAAP operating margin range of 0% to 4%.

What were ADTN's Q4 2024 margin metrics?

ADTN achieved a GAAP gross margin of 37.6% and a non-GAAP gross margin of 42.0% in Q4 2024.

What factors drove ADTN's market improvement in Q4 2024?

Market improvement was driven by higher service provider spending, lower customer inventories, shift away from high-risk vendors, and increased demand for fiber access and optical transport.