ADTN ADTRAN Holdings, Inc.
NASDAQActiveCommon stock
ADTN is the ticker symbol of ADTRAN Holdings, Inc., which is listed on NASDAQ. The symbol was previously used by ADTRAN Inc..
ADTN at a glance
- Symbol
- ADTN
- Company / issuer
- ADTRAN Holdings, Inc.
- Security type
- Common stock
- Exchange
- NASDAQ
- Status
- Actively traded
- Seen in listing files
- Jan 2015 – present
- Sector
- Utilities
- Industry
- Telecommunications Equipment
- Country
- United States
- IPO year
- 1994
- Market cap
- $565.1 million (Sep 2026)
ADTN ticker history
All companies and securities we have recorded under the symbol ADTN, from periodic snapshots of US exchange listing files.
| Name | Security | First seen | Last seen |
|---|---|---|---|
| ADTRAN Inc. | Common Stock | Jan 2015 | Jun 2022 |
| ADTRAN Holdings, Inc. | Common Stock | Jul 2022 | present |
ADTRAN Holdings, Inc. company profile
- Industry (SIC)
- Telephone & Telegraph Apparatus
- Headquarters
- Huntsville, AL
- Fiscal year end
- December 31
- SEC filer category
- Large accelerated filer
- Latest annual report
- 10-K filed 2026-02-26
- Latest interim report
- 10-Q filed 2026-08-04
- SEC CIK
- 926282
Former company names
- Adtran Inc (until 2022)
Source: SEC EDGAR filer data.
ADTN price chart
Interactive chart provided by TradingView (loads third-party scripts).
Frequently asked questions
What company has the ticker symbol ADTN?
ADTN is the ticker symbol of ADTRAN Holdings, Inc on NASDAQ.
Is ADTN still trading?
Yes. ADTN appears in the current NASDAQ listings as of Sep 2026.
Which companies have used the ticker ADTN?
Our listing records show ADTN used by: ADTRAN Inc.; ADTRAN Holdings, Inc..
Which exchange is ADTN listed on?
ADTN is listed on NASDAQ.