As of November 10, 2026, ADTRAN Holdings Inc is a publicly traded company (Nasdaq: ADTN); its largest reported holder is Vanguard, with 6.03% on Schedule 13G of April 28, 2026, then Vanguard (5.13%). The largest insider holding is Thomas R. Stanton, the chairman and chief executive, with 1,410,889.51 shares (1.7% of shares outstanding), per Form 4 of November 9, 2026 (Schedule 13G, April 28, 2026).
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Is ADTRAN Holdings Inc a real, registered company?
- ADTRAN Holdings Inc files with the SEC under CIK 926282 (its SEC filings).
- Its shares are listed under the ticker ADTN on Nasdaq (SEC company record).
- business address in Huntsville, Alabama, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under ADTRAN Holdings Inc in our court records and SEC 8-K records (as of 2026-11-10).
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names Vanguard (filed 2026-10-30).
Who are ADTRAN Holdings Inc's owners and officers?
ADTRAN Holdings Inc: business address in Huntsville, Alabama; industry Telephone & Telegraph Apparatus (Schedule 13G, 2026-10-30).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G, 2026-10-30 | Vanguard Capital Management | 5.13% |
| Schedule 13G, 2026-04-28 | Vanguard Portfolio Management | 6.03% |
| Schedule 13G/A, 2026-03-26 | The Vanguard Group | 0% |
| Schedule 13G/A, 2026-03-18 | Egora Ventures Ag | 4.97% |
| Schedule 13G/A, 2025-11-14 | Divisar Capital Management LLC | 4% |
| Schedule 13G/A, 2025-08-14 | Divisar Capital Management LLC | 5.3% |
| Schedule 13G/A, 2025-07-07 | The Vanguard Group | 10.2% |
Questions about who owns ADTRAN Holdings Inc
Who owns ADTRAN Holdings Inc?
On this page, 2 holders' latest ownership filings report 5% or more of ADTRAN Holdings Inc: Vanguard Portfolio Management (6.03%, Schedule 13G, filed 2026-04-28) and Vanguard Capital Management (5.13%, Schedule 13G, filed 2026-10-30).
Who are the largest shareholders of ADTRAN Holdings Inc?
By the share each holder's latest filing reports, the largest holders of ADTRAN Holdings Inc on this page are Vanguard Portfolio Management (6.03%) and Vanguard Capital Management (5.13%).
When did Vanguard Portfolio Management buy into ADTRAN Holdings Inc?
The filings give report dates, not purchase dates. The earliest filing from Vanguard Portfolio Management on this page is the Schedule 13G, filed 2026-04-28, reporting 6.03%.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 7 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
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Which insiders own ADTRAN Holdings Inc shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- , the chairman and chief executive: 1,410,889.51 shares (1.7% of shares outstanding) (Form 4, 2026-11-09).
- , the chief revenue officer: 150,342.737 shares (0.18% of shares outstanding), 146,096.486 held directly and 4,246.251 indirectly (Form 4, 2026-11-05).
- , a director: 125,373 shares (0.15% of shares outstanding) (Form 4, 2026-01-05).
- , a director: 107,600 shares (0.13% of shares outstanding) (Form 4, 2026-01-05).
- , a director: 98,663 shares (0.12% of shares outstanding) (Form 4, 2026-01-05).
Shares outstanding: 81,495,825 as of 2026-10-31, from the company's latest SEC cover page.
How much has ADTRAN Holdings Inc raised?
No fundraising or offering filing from ADTRAN Holdings Inc is on file with us.
Keep reading
More on ADTRAN Holdings Inc and the records around it.
Companies that share a holder
- Divisar Capital Management LLC also filed stake reports on 4 other companies: Orion S.A. (Feb 2026), Commerce.com, Inc. (Feb 2026), MasterCraft Boat Holdings, Inc. (Feb 2026)
- Vanguard Portfolio Management also filed stake reports on 941 other companies: Newmark Group Inc (Nov 2026), A10 Networks Inc (Oct 2026), ADT Inc (Oct 2026)
- Vanguard Capital Management also filed stake reports on 1495 other companies: A10 Networks Inc (Oct 2026), Altisource Portfolio Solutions SA (Oct 2026), Alto Neuroscience Inc (Oct 2026)
Related pages
Filings, cases and notices link to their records. A not-found line names the records searched; it is not proof of absence.
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https://mentionfox.com/who-owns/adtran