ADTRAN Holdings DEFA14A Proxy Filing

Ticker: ADTN · Form: DEFA14A · Filed: Mar 27, 2026 · CIK: 0000926282

Adtran Holdings, INC. DEFA14A Filing Summary
FieldDetail
CompanyAdtran Holdings, INC. (ADTN)
Form TypeDEFA14A
Filed DateMar 27, 2026
Risk Levellow
Pages1
Reading Time1 min
Sentimentneutral

Sentiment: neutral

Topics: proxy-filing, shareholder-meeting, corporate-governance

Related Tickers: ADTN

TL;DR

ADTRAN proxy filing out - shareholders vote soon.

AI Summary

ADTRAN Holdings, Inc. filed a Definitive Proxy Statement (DEFA14A) on March 27, 2026. This filing relates to the solicitation of proxies for the company's upcoming annual meeting. The filing includes information relevant to shareholders for voting on company matters.

Why It Matters

This filing is crucial for shareholders as it outlines the agenda and proposals for the annual meeting, enabling informed voting on corporate governance and strategic decisions.

Risk Assessment

Risk Level: low — This is a routine proxy filing and does not contain new financial information or significant strategic changes.

Key Players & Entities

FAQ

What type of filing is this DEFA14A for ADTRAN Holdings, Inc.?

This is a Definitive Proxy Statement (DEFA14A) and Rule 14(a)(12) material, used for soliciting proxies.

When was this filing accepted by the SEC?

The filing was accepted on March 27, 2026.

What is the CIK number for ADTRAN Holdings, Inc.?

The CIK number for ADTRAN Holdings, Inc. is 0000926282.

What is the primary business address of ADTRAN Holdings, Inc.?

The primary business address is 901 EXPLORER BLVD HUNTSVILLE AL 35806.

What is the SIC code listed for ADTRAN Holdings, Inc.?

The SIC code listed is 3661 - Telephone & Telegraph Apparatus.

Filing Stats: 136 words · 1 min read · ~1 pages · Grade level 15.1 · Accepted 2026-03-27 06:55:21

Filing Documents

From the Filing

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 _______________________ Filed by the Registrant Filed by a party other than the Registrant Check the appropriate box: Preliminary Proxy Statement Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) Definitive Proxy Statement Definitive Additional Materials Soliciting Material under 240.14a-12 ADTRAN Holdings, Inc. (Name of Registrant as Specified In Its Charter) Not applicable. (Name of Person(s) Filing Proxy Statement, if other than the Registrant) Payment of Filing Fee (Check all boxes that apply): No fee required Fee paid previously with preliminary materials Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11

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