ArcBest Corporation filed a Form 8-K with the SEC on November 4, 2026, reporting the issuance of a press release announcing its unaudited third quarter 2026 financial results, along with supplemental information and earnings conference call presentation slides.

Key Highlights

  • Filing date: November 4, 2026, covering the event of November 4, 2026, under Item 2.02 (Results of Operations and Financial Condition).
  • Exhibits furnished: Three exhibits were attached: a press release (Exhibit 99.1), supplemental information (Exhibit 99.2), and an earnings conference call presentation (Exhibit 99.3), all dated November 4, 2026.
  • Non-GAAP measures: The filing disclosed that the press release, supplemental information, and presentation slides include certain non-GAAP financial information, with reconciliations to GAAP measures provided in Exhibit 99.1 and Exhibit 99.3.
  • Adjusted EBITDA: According to the filing, Adjusted EBITDA is used by management "for business planning and as a key performance measure," and reconciliations of GAAP earnings and earnings per share to non-GAAP measures are included in the exhibits.
  • Signing officer: The report was signed by J. Brent Hagy, Chief Legal Officer and Corporate Secretary of ArcBest Corporation.

ArcBest Furnishes Q3 2026 Results and Non-GAAP Disclosures via Form 8-K

ArcBest Corporation (NASDAQ:ARCB), headquartered at 8401 McClure Drive, Fort Smith, Arkansas, filed this current report to notify the public that it issued a press release on November 4, 2026, announcing unaudited results for the third quarter of 2026. The filing was made under Item 2.02 of Form 8-K, which covers Results of Operations and Financial Condition. The results press release is furnished as Exhibit 99.1, while additional supplemental information and presentation slides prepared for a scheduled earnings conference call are furnished as Exhibit 99.2 and Exhibit 99.3, respectively.

According to the filing, the company reports its financial results in accordance with U.S. generally accepted accounting principles (GAAP). However, the filing states that "management believes that certain non-GAAP financial measures and ratios utilized internally to assess core performance offer analysts, investors, and others insights into performance trends by excluding items from operating results that management believes do not reflect ArcBest's core operating performance." The filing specifies that GAAP-to-non-GAAP reconciliations, including reconciliations of GAAP earnings and earnings per share, effective tax rates, and Adjusted EBITDA calculations, are included within Exhibit 99.1 and Exhibit 99.3.

The filing also notes that "ArcBest's calculation of EBITDA and Adjusted EBITDA may not be comparable to similarly titled measures of other companies," and it cautions that non-GAAP financial measures "should be viewed in addition to, and not as an alternative for or a better measurement than operating income (loss) or net income (loss), as determined under GAAP." The 8-K was signed by J. Brent Hagy, Chief Legal Officer and Corporate Secretary, on behalf of ArcBest Corporation.

What Was Disclosed

ArcBest Corporation filed an 8-K on November 4, 2026, furnishing its unaudited Q3 2026 earnings press release, supplemental financial information, and conference call presentation slides, all of which include non-GAAP measures reconciled to GAAP within the exhibits.