Welcome to our dedicated page for Adtran SEC filings (Ticker: ADTN), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
The ADTRAN Holdings, Inc. (ADTN) SEC filings page on Stock Titan provides access to the company’s U.S. Securities and Exchange Commission disclosures, including current reports on Form 8-K and other key documents. ADTRAN Holdings, Inc., the parent of Adtran, Inc., files regulatory reports that describe its financial results, capital structure decisions, governance matters and executive compensation arrangements.
Recent Form 8-K filings cover quarterly financial results, where the company reports revenue, margins, operating performance and reconciliations between GAAP and non-GAAP measures. These filings often reference accompanying press releases and investor presentations used in earnings webcasts. Other 8-Ks detail outcomes of annual stockholder meetings, including director elections, advisory votes on executive compensation and auditor ratification.
Filings also describe financing activities, such as the issuance of 3.75% convertible senior notes due 2030 under an indenture with U.S. Bank Trust Company, National Association as trustee. These disclosures outline the notes’ interest rate, maturity, conversion rights, redemption provisions, events of default and related capped call transactions intended to address potential dilution or cash obligations upon conversion. Additional 8-Ks explain amendments to the Wells Fargo credit agreement and how proceeds from the notes are expected to be used, including repayment of borrowings and cash collateralization of obligations.
Other regulatory documents include reports on executive employment agreements and compensation structures, such as amendments to the Chief Technology Officer’s employment agreement that specify base salary, incentive cash bonus opportunities and equity-based awards tied to revenue and adjusted earnings before interest and taxes.
Stock Titan’s platform enhances these filings with AI-powered summaries that explain complex terms, highlight key changes and help readers understand the implications of items such as convertible notes, credit agreement amendments and compensation plans. Users can quickly locate Forms 8-K, 10-K, 10-Q and Form 4 insider transaction reports as they become available from EDGAR, while AI-generated insights assist in interpreting lengthy documents without replacing the original filings.
ADTRAN Holdings, Inc. Chairman & CEO Stanton R. Stanton reported an amended insider transaction. On January 24, 2025, he acquired 39,735 shares of common stock as a grant or award at a stated price of $0.0000 per share, bringing his directly held shares to 815,952.51.
A prior Form 4 filing understated by 360 shares the number of shares received from performance stock units granted on March 1, 2023 under the company’s 2020 Employee Stock Incentive Plan. As a result of this correction, he beneficially owns 955,830.51 shares as of the date referenced.
Morgan Stanley Smith Barney LLC filed a Form 144 reporting a proposed sale of 148,266.55 shares of common stock of ADTN on 03/04/2026. The shares are described as restricted stock vesting under a registered plan with a vesting/service date of 12/31/2025.
Adtran Holdings, Inc. files its annual report describing a global broadband networking business focused on fiber-based access, optical transport and AI-driven software and services. The company operates two segments, Network Solutions and Services & Support, serving service providers, enterprises and governments worldwide.
Adtran highlights an extensive product portfolio spanning subscriber, access & aggregation, and optical networking solutions, supported by significant R&D investment of $204.3 million in 2025. As of December 31, 2025, it employed 3,338 people across 34 countries and maintains major operations in the U.S. and Europe.
The report stresses substantial risks: material indebtedness including a $201.3 million 3.75% convertible note due 2030, borrowings under a Wells Fargo credit facility, and sizeable cash obligations under a German Domination and Profit and Loss Transfer Agreement that may require recurring payments or large exit compensation to Adtran Networks minority shareholders. Management also discloses prior restatements and material weaknesses in internal control, intense competition, supply-chain and tariff exposure, and broad regulatory, cybersecurity, AI and industry risks that could pressure liquidity, profitability and stock price.
ADTRAN Holdings reported much stronger fourth quarter and full-year 2025 results, highlighted by solid growth in fiber networking. Fourth quarter revenue reached $291.6 million, up 20.1% year over year, with gains across all three revenue categories and especially in U.S. enterprise and cloud customers.
Profitability improved meaningfully. GAAP gross margin was 39.0%, while non-GAAP gross margin rose to 42.5%, up more than a percentage point from last year. GAAP operating margin was 1.5%, but non-GAAP operating margin climbed to 6.4% as scale and mix improved.
ADTRAN still posted a small GAAP net loss for the quarter, with diluted loss per share of $0.02, yet on a non-GAAP basis delivered diluted earnings per share of $0.16. For 2025, operating cash flow strengthened to $129.8 million, and free cash flow reached $60.5 million, helping lift cash and equivalents to $95.7 million at year-end.
Looking ahead, the company expects first-quarter 2026 revenue between $275.0 million and $295.0 million and a non-GAAP operating margin range of 4.0% to 8.0%, reflecting confidence in ongoing demand for fiber, cloud, and high-risk vendor replacement projects.
ADTRAN Holdings’ Chief Revenue Officer filed an amended insider trading report to correct prior share figures. On January 26, 2026, 1,309 shares of common stock were delivered back to the company at $9.24 per share to cover withholding taxes on vesting performance stock units. After this tax withholding, the officer directly beneficially owned 127,701.486 shares of ADTRAN common stock.
ADTRAN Holdings Chief Revenue Officer James Denson Jr reported stock transactions related to performance-based equity awards. On January 26, 2026, he acquired 3,777 shares of common stock at $0 upon the vesting of performance stock units granted on January 20, 2023 under the company’s 2020 Employee Stock Incentive Plan.
On the same date, 1,087 shares were surrendered at $9.24 per share to cover withholding taxes due from the vesting. After these transactions, he directly held 127,923.486 common shares and indirectly held 4,246.809 shares through a 401(k) plan.
ADTRAN Holdings Chairman & CEO Stanton Thomas reported routine equity compensation activity involving company common stock. On January 26, 2026, he acquired 27,973 shares of common stock at $0 upon vesting of previously granted performance stock units under the company’s 2020 Employee Stock Incentive Plan.
On the same date, 12,407 shares were delivered back to ADTRAN at $9.24 per share to cover withholding taxes due on the vesting. After these transactions, Thomas directly owned 955,470.51 shares of ADTRAN common stock.
ADTRAN Holdings’ Chief Revenue Officer Wilson James Denson Jr reported share transfers tied to tax withholding on vested equity awards. On January 24, 2026, 1,227 shares of common stock were delivered back to the company at $9.55 per share. On January 26, 2026, a further 998 shares were delivered at $9.73 per share. After these transactions, he held 125,233.486 shares of common stock directly and 4,246.809 shares indirectly through a 401(k) plan. The filing explains that the shares were surrendered to cover withholding taxes upon vesting of previously granted restricted stock units.
ADTRAN Holdings, Inc. Chairman & CEO Stanton Thomas R reported routine share-withholding transactions related to equity compensation. On January 24, 2026, 17,535 shares of common stock at $9.55 per share were delivered to the company to cover withholding taxes on vested restricted stock units.
On January 26, 2026, an additional 14,409 shares at $9.73 per share were similarly delivered for tax withholding. After these transactions, Thomas directly held 939,904.51 shares of ADTRAN common stock.
ADTRAN Holdings, Inc. Chief Revenue Officer Wilson James Denson Jr reported a routine share withholding transaction. On 01/20/2026, 765 shares of common stock were delivered to ADTRAN at a price of $9.24 per share to cover withholding taxes due on the vesting of previously granted restricted stock units. After this transaction, Denson directly beneficially owned 127,458.486 shares of common stock and indirectly held 4,246.809 shares of common stock through a 401(k) plan. This reflects tax-related administration of equity compensation rather than an open-market sale.