ADTN supply chain intelligence for ADTRAN Holdings, Inc.: verified suppliers, customers, debt relationships, acquisitions, and ownership data.
Data compiled by Redley Lamar · ChainSifter Intelligence
ADTRAN Holdings, Inc. (ADTN) is shown with relationship data already present in ChainSifter's database. Counts below come from stored supply-chain records and filing/source URLs where available; missing source URLs are not filled in or estimated.
| Ticker | Name | Confidence | Evidence |
|---|---|---|---|
| COMMUNICATIONS-SERVICE-PROVIDERS | COMMUNICATIONS-SERVICE-PROVIDERS | 90% | Our Access & Aggregation Solutions are solutions that are used by communications Service Providers to connect residential subscribers, business subscribers and mobile radio networks to the Service Pr… |
| SERVICE-PROVIDERS | SERVICE-PROVIDERS | 90% | Our Subscriber Solutions portfolio is used by Service Providers to terminate their access services infrastructure at the customer premises |
| INTERNATIONAL-SERVICE-PROVIDER-CUSTOMER | INTERNATIONAL-SERVICE-PROVIDER-CUSTOMER | 80% | the timing of sales with an international Service Provider customer |
| ADTRAN-NETWORKS-ADTRAN-INC | ADTRAN-NETWORKS-ADTRAN-INC | 62% | stomers and grow revenue, we are continually conducting research and developing new products addressing customer needs and testing those products for the specific requirements of the particular custo… |
| GERMAN-STOCK-CORPORATION | GERMAN-STOCK-CORPORATION | 62% | sales and research and development facilities in strategic global locations. The Company solely owns ADTRAN, Inc. and is the majority shareholder of Adtran Networks. Adtran is a leading global provid… |
| Instrument | Description | Confidence | Evidence |
|---|---|---|---|
| ADTN-DEBT-7521 | Xbrl Convertible | 90% | xbrl convertible detail from xbrl 2026-03-31. |
| ADTN-DEBT | Debt stack $25.6M | 90% | Market cache reports total debt of $25.6M. |
| Holder | Name | Confidence | Evidence |
|---|---|---|---|
| ADTN-OWNER-ROYCE-ASSOCIATES-LP | ROYCE & ASSOCIATES LP | 95% | 13F/ownership overlay lists ROYCE & ASSOCIATES LP; shares held 3,127,403; value $39.3B; as of 2026-03-31. |
| ADTN-OWNER-DNB-ASSET-MANAGEMENT-AS | DNB Asset Management AS | 95% | 13F/ownership overlay lists DNB Asset Management AS; shares held 3,123,679; value $39.3B; as of 2026-03-31. |
| ADTN-OWNER-FIRST-EAGLE-INVESTMENT-MANAGEMENT-LLC | First Eagle Investment Management, LLC | 95% | 13F/ownership overlay lists First Eagle Investment Management, LLC; shares held 2,737,414; value $34.4B; as of 2026-03-31. |
| ADTN-OWNER-VANGUARD-PORTFOLIO-MANAGEMENT-LLC | VANGUARD PORTFOLIO MANAGEMENT LLC | 95% | 13F/ownership overlay lists VANGUARD PORTFOLIO MANAGEMENT LLC; shares held 4,771,452; value $60.0B; as of 2026-03-31. |
| ADTN-OWNER-VANGUARD-CAPITAL-MANAGEMENT-LLC | VANGUARD CAPITAL MANAGEMENT LLC | 95% | 13F/ownership overlay lists VANGUARD CAPITAL MANAGEMENT LLC; shares held 6,852,460; value $86.2B; as of 2026-03-31. |
| ADTN-OWNER-BARCLAYS-PLC | BARCLAYS PLC | 95% | 13F/ownership overlay lists BARCLAYS PLC; shares held 3,307,495; value $32.0B; as of 2026-03-31. |
| ADTN-OWNER-BLACKROCK-INC | BlackRock, Inc. | 95% | 13F/ownership overlay lists BlackRock, Inc.; shares held 7,840,254; ownership 9.62%; value $98.6B; as of 2026-03-31. |
| ADTN-OWNER-WILLIAM-BLAIR-INVESTMENT-MANAGEMENT-LLC | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 95% | 13F/ownership overlay lists WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC; shares held 1,989,530; value $25.0B; as of 2026-03-31. |
| ADTN-OWNER-STATE-STREET-CORP | STATE STREET CORP | 95% | 13F/ownership overlay lists STATE STREET CORP; shares held 2,350,737; value $29.6B; as of 2026-03-31. |
| ADTN-OWNER-MORGAN-STANLEY | MORGAN STANLEY | 95% | 13F/ownership overlay lists MORGAN STANLEY; shares held 3,969,956; value $42.2B; as of 2026-03-31. |
| ADTN | ADTRAN Holdings, Inc. | 82% | STANTON THOMAS R | Chairman & CEO | sell | 17535 shares |
| ADTN | ADTRAN Holdings, Inc. | 82% | Wilson James Denson Jr | Chief Revenue Officer | sell | 1227 shares |
| ADTN | ADTRAN Holdings, Inc. | 82% | STANTON THOMAS R | Chairman & CEO | sell | 10247 shares |
| ADTN | ADTRAN Holdings, Inc. | 82% | beneficial ownership event from 2026-03-31. |
| ADTN | ADTRAN Holdings, Inc. | 82% | beneficial ownership event from 2026-03-31. |
| ADTN | ADTRAN Holdings, Inc. | 82% | beneficial ownership event from 2026-03-31. |
| ADTN | ADTRAN Holdings, Inc. | 82% | beneficial ownership event from 2026-03-31. |
| ADTN | ADTRAN Holdings, Inc. | 82% | beneficial ownership event from 2026-03-31. |
| ADTN | ADTRAN Holdings, Inc. | 82% | Wilson James Denson Jr | Chief Revenue Officer | sell | 765 shares |
| ADTN | ADTRAN Holdings, Inc. | 82% | STANTON THOMAS R | Chairman & CEO | sell | 10247 shares |
| ADTN | ADTRAN Holdings, Inc. | 82% | Wilson James Denson Jr | Chief Revenue Officer | sell | 765 shares |
| ADTN | ADTRAN Holdings, Inc. | 82% | STANTON THOMAS R | Chairman & CEO | option_exercise | 170723 shares |
| ADTN | ADTRAN Holdings, Inc. | 82% | beneficial ownership event from 2026-03-31. |
| ADTN | ADTRAN Holdings, Inc. | 82% | beneficial ownership event from 2026-03-31. |
| ADTN | ADTRAN Holdings, Inc. | 82% | beneficial ownership event from 2026-03-31. |
| ADTN | ADTRAN Holdings, Inc. | 82% | beneficial ownership event from 2026-03-31. |
| ADTN | ADTRAN Holdings, Inc. | 82% | beneficial ownership event from 2026-03-31. |
| ADTN | ADTRAN Holdings, Inc. | 82% | Santo Timothy P | SVP of Finance; CFO | option_exercise | 28252 shares |
| ADTN | ADTRAN Holdings, Inc. | 82% | Wilson James Denson Jr | Chief Revenue Officer | option_exercise | 24908 shares |
| ADTN | ADTRAN Holdings, Inc. | 82% | Santo Timothy P | SVP of Finance; CFO | sell | 1501 shares |