8-K current report · filed May 5, 2026

ADTRAN Holdings, Inc. (ADTN) 8-K Current Report: May 5, 2026

Item 2.02Item 7.01Item EX-99.1ADTN overview

Short answer

ADTRAN Holdings, Inc. (ADTN) filed an 8-K current report with the SEC on May 5, 2026 reporting Item 2.02 (Results of Operations and Financial Condition), Item 7.01 (Regulation FD Disclosure), Item EX-99.1 (Exhibit EX-99.1). Q1 2026 results for quarter ended March 31, 2026.

ADTRAN Holdings, Inc. 8-K event analysis

AI summary of each reported item and its exhibits

Item 2.02 · Results of Operations and Financial Condition

  • Q1 2026 results for quarter ended March 31, 2026
  • Press release containing financial results attached as Exhibit 99.1
  • Investor focus: revenue, profitability, guidance, and operating trends disclosed in the exhibit

Item 7.01 · Regulation FD Disclosure

  • ADTRAN investor webcast scheduled May 5, 2026 at 7:30 a.m. Central Time
  • Investor presentation attached as Exhibit 99.2, likely containing financial-results context
  • Webcast archive available temporarily through ADTRAN’s Investor Relations website
  • Disclosure furnished under Regulation FD, not formally filed under Exchange Act Section 18

Item EX-99.1 · Exhibit EX-99.1

  • Q1 revenue $286.1M, up 15.5% YoY, led by Network Solutions revenue of $237.9M
  • GAAP operating margin improved to 2.2% from negative 1.6%; non-GAAP margin reached 6.9%
  • GAAP diluted loss $0.01 per share versus non-GAAP diluted earnings $0.14
  • Operating cash flow $12.7M, but free cash flow negative $3.3M after $15.9M of capital and technology spending
  • Q2 guidance: revenue $283.0M-$303.0M and non-GAAP operating margin 5.0%-9.0%

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