ADTRAN Holdings, Inc.

ADTN · Nasdaq · SIC 3661: Telephone & Telegraph Apparatus
172
SEC Filings

Business Summary

Company Overview ADTRAN Holdings, Inc. (Adtran or the Company) is a leading global provider of networking and communications platforms, software, systems and services focused on the metro optical transport, data center interconnect, and broadband access market, serving a diverse domestic and international customer base in multiple countries that includes large, medium and small Service Providers, alternative Service Providers, such as utilities, municipalities and fiber overbuilders, cable/MSOs,...

Next Earnings

Q2 FY2026 — expected 2026-09-17

Key Facts from Earnings Calls

TypeSubjectDetailQuarter
topic_mentionADTNdiscussed_in_filing Cybersecurity
topic_mentionADTNdiscussed_in_filing Cybersecurity
topic_mentionADTNdiscussed_in_filing Data Center
topic_mentionADTNdiscussed_in_filing Platform & Ecosystem
topic_mentionADTNdiscussed_in_filing Networking
topic_mentionADTNdiscussed_in_filing Data Center
topic_mentionADTNdiscussed_in_filing Platform & Ecosystem
topic_mentionADTNdiscussed_in_filing Networking

Annual Reports (10-K)

FiledPeriodAccessionSourceFull Text
2026-02-262025-12-310001193125-26-073878EDGAR93K words
2025-03-032024-12-310000950170-25-031056EDGAR—
2024-03-152023-12-310000950170-24-032089EDGAR—
2023-03-012022-12-310000950170-23-005536EDGAR—
2022-02-252021-12-310000950170-22-002054EDGAR—
2021-02-262020-12-310001564590-21-009423EDGAR—
2020-02-252019-12-310001564590-20-006425EDGAR—
2019-02-282018-12-310001564590-19-005179EDGAR—
2018-02-232017-12-310001564590-18-003019EDGAR—

Quarterly Reports (10-Q)

FiledPeriodAccessionSourceFull Text
2025-11-042025-09-300001193125-25-264157EDGAR58K words
2025-08-052025-06-300000950170-25-102561EDGAR—
2025-05-202025-03-310000950170-25-075374EDGAR—
2024-11-122024-09-300000950170-24-125685EDGAR—
2024-08-092024-06-300000950170-24-094602EDGAR—
2024-05-102024-03-310000950170-24-057628EDGAR—
2023-11-092023-09-300000950170-23-062173EDGAR—
2023-08-142023-06-300000950170-23-042449EDGAR—
2023-05-102023-03-310000950170-23-020333EDGAR—
2022-11-092022-09-300000950170-22-023803EDGAR—
2022-08-052022-06-300000950170-22-015058EDGAR—
2022-05-062022-03-310000950170-22-008077EDGAR—

Recent Current Reports (8-K)

FiledAccessionSourceFull Text
2026-02-260001193125-26-073361EDGAR10K words
2026-01-220001193125-26-018367EDGAR—
2025-12-110001193125-25-315910EDGAR—
2025-11-040001193125-25-263524EDGAR—
2025-09-220001193125-25-211271EDGAR—
2025-09-170001193125-25-205483EDGAR—
2025-08-050000950170-25-102401EDGAR—
2025-07-300000950170-25-100222EDGAR—
2025-07-160000950170-25-096231EDGAR—
2025-05-280000950170-25-077995EDGAR—

172 total filings indexed. 141 additional filings (S-1, DEF 14A, etc.) View all (JSON) · SEC EDGAR

Sector Peers

CIEN — CIENA CORP CLRO — CLEARONE INC CLFD — Clearfield, Inc. SONM — DNA X, Inc. FKWL — FRANKLIN WIRELESS CORP FN — Fabrinet FIEE — FiEE, Inc. NTGR — NETGEAR, INC.

Company Identity

CIK0000926282
TickerADTN
ExchangeNasdaq
SIC3661: Telephone & Telegraph Apparatus

Get More Data

This is the free public profile. For structured JSON with full provenance chain, use the API:

JSON Profile Stock Quote AI Readiness Report
Origin Provenance
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content hash: 2a44ea359a3620806e4d99440899a54098064416c55ad7889b732bb8d2fdf986
signed: 2026-04-13T04:43:28.628Z
sources: 21 verified data leaves
chain: SEC.gov PEM → origin.rootz.global extraction → this page
verify: sha256(content_hash + parent + timestamp) = leaf