# EDGAR Filing Document

**Accession Number:** 0000926282
**File Stem:** 0000950170-25-096408
**Filing Date:** 2025-7
**Character Count:** 18525
**Document Hash:** 8928588f6bd237041c6c322534e9f661
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000950170-25-096408.hdr.sgml**: 20250717

**ACCESSION NUMBER**: 0000950170-25-096408

**CONFORMED SUBMISSION TYPE**: 8-K/A

**PUBLIC DOCUMENT COUNT**: 14

**CONFORMED PERIOD OF REPORT**: 20250716

**ITEM INFORMATION**: Results of Operations and Financial Condition

**ITEM INFORMATION**: Regulation FD Disclosure

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20250717

**DATE AS OF CHANGE**: 20250716

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ADTRAN Holdings, Inc.
- **CENTRAL INDEX KEY:** 0000926282
- **STANDARD INDUSTRIAL CLASSIFICATION:** TELEPHONE & TELEGRAPH APPARATUS [3661]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 872164282
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-41446
- **FILM NUMBER:** 251128721

**BUSINESS ADDRESS:**
- **STREET 1:** 901 EXPLORER BLVD
- **CITY:** HUNTSVILLE
- **STATE:** AL
- **ZIP:** 35806
- **BUSINESS PHONE:** 256-963-8220

**MAIL ADDRESS:**
- **STREET 1:** 901 EXPLORER BLVD
- **CITY:** HUNTSVILLE
- **STATE:** AL
- **ZIP:** 35806

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ADTRAN INC
- **DATE OF NAME CHANGE:** 19940705

?xml version='1.0' encoding='ASCII'? 8-K/A

**UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549**

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## **FORM** 8-K/A

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**CURRENT REPORT**

**Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934**

**Date of Report (Date of earliest event reported):** July 16, 2025<br>

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ADTRAN Holdings, Inc.

**(Exact name of Registrant as Specified in Its Charter)**

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| | | |
|:---|:---|:---|
| Delaware | 001-41446 | 87-2164282 |
| **(State or Other Jurisdiction<br>of Incorporation)** | **(Commission File Number)** | **(IRS Employer<br>Identification No.)** |
| 901 Explorer Boulevard |  |  |
| Huntsville**,** Alabama |  | 35806-2807 |
| **(Address of Principal Executive Offices)** |  | **(Zip Code)** |

---

**Registrant's Telephone Number, Including Area Code:** 256 963-8000<br>

Not Applicable

**(Former Name or Former Address, if Changed Since Last Report)**

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Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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

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| | | |
|:---|:---|:---|
| **<br>Title of each class** | **Trading<br>Symbol(s)** | **<br>Name of each exchange on which registered** |
| Common Stock, Par Value $0.01 per share | ADTN | Nasdaq Global Select Market |

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Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

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. ☐

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## **Explanatory Note** 
This Amendment No. 1 on Form 8-K/A (this "Form 8-K/A") amends the Current Report on Form 8-K furnished by ADTRAN Holdings, Inc. to the U.S. Securities and Exchange Commission on July 16, 2025 (the "Original Form 8-K"). This Form 8-K/A is being furnished to provide the hyperlinks for Exhibits 99.1 and 99.2, which were missing from the Original Form 8-K. Other than the inclusion of the hyperlinks and the correction of certain formatting issues, the remainder of the Original Form 8-K remains unchanged.

## **Item 2.02 Results of Operations and Financial Condition.** 
On July 16, 2025, ADTRAN Holdings, Inc. ("ADTRAN") announced its preliminary revenue for the fiscal quarter ended June 30, 2025.

A copy of ADTRAN's press release announcing ADTRAN's preliminary revenue is attached as Exhibit 99.1 hereto and incorporated by reference herein.

## **Item 7.01 Regulation FD Disclosure.** 
As a company listed on the Frankfurt Stock Exchange, ADTRAN is subject to German and European securities laws. Article 17 of the Market Abuse Regulation (EU) No. 596/2014 (the "MAR") of the European Parliament and of the Council of 16 April 2014 mandates that listed issuers such as ADTRAN provide real time disclosure in certain circumstances, including where management's expected results materially deviate from previously announced guidance or analyst consensus. On July 16, 2025, ADTRAN published an ad hoc announcement in Germany disclosing its preliminary revenue for the second quarter of fiscal 2025 in accordance with the MAR.

A copy of ADTRAN's ad hoc announcement is attached as Exhibit 99.2 hereto and incorporated by reference herein.

The information included in, or incorporated into, Items 2.02 and 7.01 of this Current Report on Form 8-K is being furnished and shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

**Item 9.01 Financial Statements and Exhibits.**

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| | |
|:---|:---|
| **<u>Exhibit Number</u>** | **<u>Description</u>** |
| 99.1 | [<u>Press Release dated July 16, 2025</u>](adtn-ex99_1.htm) |
| 99.2 | [<u>Ad Hoc Notification dated July 16, 2025 (English translation)</u>](adtn-ex99_2.htm) |
| 104 | Cover Page Interactive Data File – the cover page iXBRL tags are embedded within the Inline XBRL document |

---

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**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 hereunto duly authorized.

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| | | | |
|:---|:---|:---|:---|
|  |  |  | **ADTRAN Holdings, Inc.** |
| Date: | July 16, 2025 | By:  | /s/ Timothy Santo |
|  |  |  | Timothy Santo<br>Senior Vice President of Finance and <br>Chief Financial Officer<br>|

---

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## Exhibit 99.1

**EXHIBIT 99.1**

![img50768744_0.jpg](img50768744_0.jpg)

**ADTRAN Holdings, Inc. announces higher than expected preliminary Q2 2025 revenue**

Huntsville, Alabama, USA. – July 16, 2025 — ADTRAN Holdings, Inc. (NASDAQ: ADTN and FSE: QH9) ("ADTRAN Holdings" or the "Company") today announced preliminary unaudited revenue for the quarter ended June 30, 2025. All figures in this release are approximate due to the preliminary nature of the announcement. This press release is being provided due to German ad hoc disclosure requirements, in light of the Company's expected overperformance relative to its previously issued revenue guidance. For the second quarter, preliminary revenue is expected to be in the range of $262.5 million to $267.5 million, which exceeds the Company's previously announced guidance range of $247.5 million to $262.5 million.

ADTRAN Holdings' Chairman and Chief Executive Officer, Tom Stanton, stated, "Business conditions have continued to strengthen during the second quarter of 2025, and were supported by improved market conditions and growing customer demand for our products and services. We are pleased with our business performance and look forward to finalizing and reporting our full second quarter results in early August."

The information contained in this press release is preliminary. The Company will release its final financial results for the second quarter 2025 after the market close on Monday, August 4, 2025, at https://investors.adtran.com/. The Company will conduct a conference call on Tuesday, August 5, 2025 at 9:30 a.m. Central Time (4:30 p.m. Central European Time).

## The Company will webcast this conference call, or you may dial in to participate. To listen, visit the events and presentations section of ADTRAN Holdings, Inc. Investor Relations site at https://events.q4inc.com/attendee/260991346 approximately 10 minutes before 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 conference call and a transcript of the call will be available on the Investor Relations site shortly following the call and will remain available for at least 12 months.
The information contained in this press release is solely based on unaudited results.

**Cautionary Note Regarding Forward-Looking Statements**

Statements contained in this press release which are not historical facts 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 forward-looking information speaks 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 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; (ii) 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; (iii) risks and uncertainties related to our inventory practices and ability to match customer demand; (iv) risks and uncertainties relating to our level of indebtedness and our ability to generate cash; (v) risks and uncertainties relating to ongoing material weaknesses in our internal control over financial reporting; (vi) risks posed by changes in general economic conditions and monetary, fiscal and trade policies, including tariffs; (vii) risks posed by potential breaches of information systems and cyber-attacks; (viii) the risk that we may not be able to effectively compete, including through product improvements and development; and (ix) other risks set forth in our public filings made with the SEC, including our most recent Annual Report on Form 10-K for the year ended December 31, 2024, as amended, our Quarterly Report on Form 10-Q for the quarter ended March 31, 2025, and our Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2025 to be filed with the SEC.

Additionally, the financial measure presented herein is a preliminary estimate, remain subject to our internal controls and procedures, and is subject to risks and uncertainties, including, among others, changes in connection with quarter-end adjustments. Any variation between the Company's actual financial results and the preliminary revenue range set forth herein may be material.

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**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 ("Adtran Networks"). Find more at Adtran.com, LinkedIn and X.

**Published by**

ADTRAN Holdings, Inc.

www.adtran.com

**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

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## Exhibit 99.2

**EXHIBIT 99.2**

![img51692265_0.jpg](img51692265_0.jpg)

**Ad-hoc notification pursuant to Article 17 of Regulation (EU) No. 596/2014**

**ADTRAN Holdings, Inc.: Preliminary Q2 2025 revenue above prior guidance range**

**Huntsville, Alabama (United States of America). July 16, 2025 (CT)**

During the preparation of the report for the second quarter 2025 of ADTRAN Holdings, Inc. ("ADTRAN Holdings" or the "Company") (NASDAQ: ADTN; FSE: QH9), the Company determined today that the Company's preliminary U.S. GAAP revenue for the second quarter of 2025 deviates and is above the prior guidance range.

The deviation from guidance relating to revenue resulted from improved market conditions during the second quarter of 2025 and growing customer demand for our products and services. The preliminary numbers were as follows:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;•Preliminary U.S. GAAP revenue was $262.5 million to $267.5 million and 0% to 2% above the upper end of the prior guidance range of $247.5 million to $262.5 million.

Business conditions continued to improve during the second quarter 2025, allowing revenue to exceed the upper end of the prior guidance.

The Company will release its final financial results for the second quarter 2025 after the U.S. market close on Monday, August 4, 2025 (Central Time), or before the market opening on Tuesday, August 5, 2025 (Central European Summer Time), respectively, at https://investors.adtran.com/.

The information contained in this ad hoc notification is solely based on unaudited results.

**Cautionary Note Regarding Forward-Looking Statements**

Statements contained in this press release which are not historical facts 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 forward-looking information speaks 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 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; (ii) 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; (iii) risks and uncertainties related to our inventory practices and ability to match customer demand; (iv) risks and uncertainties relating to our level of indebtedness and our ability to generate cash; (v) risks and uncertainties relating to ongoing material weaknesses in our internal control over financial reporting; (vi) risks posed by changes in general economic conditions and monetary, fiscal and trade policies, including tariffs; (vii) risks posed by potential breaches of information systems and cyber-attacks; (viii) the risk that we may not be able to effectively compete, including through product improvements and development; and (ix) other risks set forth in our public filings made with the SEC, including our most recent Annual Report on Form 10-K for the year ended December 31, 2024, as amended, our Quarterly Report on Form 10-Q for the quarter ended March 31, 2025, and our Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2025 to be filed with the SEC.

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Additionally, the financial measure presented herein is a preliminary estimate, remains subject to our internal controls and procedures, and is subject to risks and uncertainties, including, among others, changes in connection with quarter-end adjustments. Any variation between the Company's actual financial results and the preliminary revenue range set forth herein may be material.

**Published by**

ADTRAN Holdings, Inc.

www.adtran.com

**Media contact**

Gareth Spence

+44 1904 699 358

mail to: Public.relations@adtran.com

**Notifying person and contact for investors**

Peter Schuman, IRC

+1 256 963 6305

mail to: investor.relations@adtran.com

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