0002079999 2026-02-18 2026-02-18 true 0002079999 8-K/A 2026-02-18 Cardinal Infrastructure Group Inc. DE 001-43004 39-3180206 100 E. Six Forks Road, #300 Raleigh NC 27609 919 324-1964 false false false false Class A Common Stock, $0.0001 Par Value CDNL NASDAQ true true As previously disclosed in the Current Report on Form 8-K filed by Cardinal Infrastructure Group Inc. (the "Company") with the Securities and Exchange Commission on February 19, 2026 (the "Initial Form 8-K"), on February 18, 2026, the Company and its controlled subsidiary, Cardinal Civil Contracting Holdings LLC, consummated the acquisition of 100% of the equity interests in A.L. Grading Contractors, LLC ("ALGC") on February 18, 2026. This Amendment No. 1 to the Initial Form 8-K (this "Amendment") is being filed solely to amend the Initial Form 8-K to include the financial statements of a business acquired required by Item 9.01(a) of Form 8-K and the pro forma financial information required by Item 9.01(b) of Form 8-K. Except for the foregoing, this Amendment does not modify or update any other disclosure contained in the Initial Form 8-K.