ADTNADTRAN Holdings, Inc.

$7.46-21% 1Y

$7.46

$6.8252 weeks$19.40

ADTN in its own filings

ADTN's filing record carries 3 kinds of hard flag, each is shown beside the share of the whole market carrying the same one, because more than half of all companies carry at least one.

440

Events found in the filings · across 2,101 filings · the record starts in 1996

Hard flags: 3
Hard flags
Most recent filing: Aug 10, 2026
Most recent filing · Form 8-K
Record starts: May 13, 1996
Record starts · the earliest filing Ryufin holds for this name

Details›

Next results filingsame week as a year ago: expected around Nov 3, 2026
Restatement admitted (non-reliance)3 occurrences: 2025-05-13
Late periodic report4 occurrences: 2025-05-13
Delisting notice / listing-rule failurehistorical: 2019-08-21
Security removed from listing or deregisteredhistorical · usually a matured note or preferred class, not the common shares: 2022-07-11
SEC comment-letter activity43 occurrences: 2024-11-22

SEC EDGAR submissions index and 8-K item codes; 4.02 and 1.03 items are confirmed against the filing text.

What the company said

The company's own words from its current reports to the SEC, newest first

Aug 10, 2026On August 10, 2026, Adtran Networks SE (“Adtran Networks”), a majority-owned subsidiary of ADTRAN Holdings, Inc. (the “Company”), entered into an amendment (the “Amendment”) to its employment agreement with Christoph Glingener, the Company’s Chief Technology Officer (“CTO”) and the CTO and a member of the management …Director or officer change · Form 8-K
Aug 4, 2026ADTRAN Holdings, Inc. reports second quarter 2026 financial results.Earnings release · press release
Jul 23, 2026On July 21, 2026, ADTRAN Holdings, Inc. (the “Company”) as guarantor, ADTRAN, Inc., a Delaware corporation (the “US Borrower”), and Adtran Networks SE, a European stock corporation (the “German Borrower” and together with the US Borrower, collectively, the “Borrowers”), entered into a credit agreement (the “Credit …Material agreement entered · Form 8-K
Jul 22, 2026ADTRAN Holdings, Inc. announces certain preliminary second quarter 2026 results.Earnings release · press release
Jun 26, 2026On June 23, 2026, the Board of Directors (the “Board”) of ADTRAN Holdings, Inc. (the “Company”), upon the recommendation of the Board’s Nominating and Corporate Governance Committee, voted unanimously to increase the size of the Board from six (6) to seven (7) directors and to elect Anne DelSanto to fill the vacancy …Director or officer change · Form 8-K
May 5, 2026ADTRAN Holdings, Inc. reports first quarter 2026 financial results.Earnings release · press release
Apr 7, 2026Amendment to Thomas Stanton’s Employment Agreement On April 6, 2026, ADTRAN Holdings, Inc. (the “Company”) entered into a second amendment (the “Amendment”) to its employment agreement, dated July 13, 2022 (as previously amended, the “Employment Agreement”), with Thomas R. Stanton, the Company’s President, Chief …Director or officer change · Form 8-K
Feb 26, 2026ADTRAN Holdings, Inc. reports fourth quarter and full year 2025 financial results.Earnings release · press release
Jan 22, 2026ADTRAN Holdings, Inc. announces certain preliminary fourth quarter and full year 2025 results.Earnings release · press release
Dec 11, 2025On December 9, 2025, Adtran Networks SE (“Adtran Networks”), a majority-owned subsidiary of ADTRAN Holdings, Inc. (the “Company”), entered into an amendment (the “Amendment”) to its employment agreement with Christoph Glingener, the Company’s Chief Technology Officer (“CTO”) and the CTO and a member of the management …Director or officer change · Form 8-K
Nov 4, 2025ADTRAN Holdings, Inc. reports third quarter 2025 financial results.Earnings release · press release