0002079999

Company

Cardinal Infrastructure Group Inc.

Heavy Construction Other Than Bldg Const - Contractors · CDNL

ipo trading priced Nasdaq CERT

Filing Timeline

SEC EDGAR

8-A12B effective

Exchange Act registration

Registration filed to list the securities under the Exchange Act ahead of trading.

Follows EFFECT and registers the class of securities for exchange listing.

2025-12-10 · 0001213900-25-119830

424B4 priced

Final prospectus

Final prospectus filed after pricing with final deal terms.

Follows 8-A12B and confirms the priced prospectus.

Price $21.00 · 11,500,000 shares · Gross proceeds $241,500,000

Class A · Exchange Nasdaq · Ticker CDNL · Over-allotment 1,725,000 · Use of proceeds To purchase LLC Units, redeem LLC Units, repay debt, and for general corporate purposes · Flags dual_class · Underwriters Stifel, William Blair, D.A. Davidson & Co.

2025-12-10 · 0001213900-25-120076

CERT inactive

CERT

Pre-IPO filing captured from the SEC submission timeline.

Follows 424B4 in the pre-IPO sequence.

2025-12-10 · 0001354457-25-001243

EFFECT effective

SEC effectiveness notice

SEC declared the registration statement effective, allowing the offering to proceed.

Follows S-1/A and marks the registration effective.

2025-12-09 · 9999999995-25-003606

S-1/A amended

Amended registration statement

Updated registration statement filed after SEC comments or deal changes.

Updates the prior S-1/A filing.

Range $20.00 to $22.00 · 11,500,000 shares

Class A · Exchange Nasdaq · Ticker CDNL · Over-allotment 1,725,000 · LLC Units · Use of proceeds to acquire LLC Units in Cardinal and for general corporate purposes · Flags dual_class · Underwriters Stifel, William Blair, D.A. Davidson & Co.

2025-12-01 · 0001213900-25-116264

S-1/A amended

Amended registration statement

Updated registration statement filed after SEC comments or deal changes.

Updates the prior S-1 filing.

Class A · Exchange Nasdaq · Ticker CDNL · LLC Units · Use of proceeds debt repayment, working capital, acquisitions · Flags dual_class, units · Underwriters Stifel, William Blair, D.A. Davidson & Co.

2025-11-20 · 0001213900-25-113018

S-1 filed

Initial registration statement

Initial public filing submitted to start the SEC review process.

Follows DRS/A in the pre-IPO sequence.

Class A · Exchange Nasdaq Global Select Market · Ticker CDNL · Use of proceeds To acquire LLC Units from Cardinal and Continuing Equity Holders · Flags dual_class · Underwriters Stifel, William Blair, D.A. Davidson & Co.

2025-10-14 · 0001213900-25-098415

DRS/A amended

Amended draft registration statement

Updated draft registration filed before the public launch.

Updates the prior DRS/A filing.

2025-09-29 · 0001213900-25-092546

DRS/A amended

Amended draft registration statement

Updated draft registration filed before the public launch.

Updates the prior DRS filing.

Cardinal Infrastructure Group Inc. is conducting its initial public offering (IPO) of Class A Common Stock, aiming to list on Nasdaq under the symbol 'CDNL.' The filing outlines the company's structure as a holding company with a reorganization involving Cardinal Civil Contracting, LLC. The IPO includes a dual-class stock structure, with Class B shares granting voting control to continuing equity holders. The company emphasizes its emerging growth status and potential risks related to market competition, regulatory changes, and reliance on key personnel.

2025-09-16 · 0001213900-25-087843

DRS filed

Draft registration statement

Draft registration filed confidentially before the public launch.

First tracked pre-IPO filing for this issuer.

Cardinal Infrastructure Group Inc. is conducting an initial public offering (IPO) of Class A Common Stock, with shares to be listed on Nasdaq under the symbol 'CIVL'. The company, structured as a holding company, will acquire LLC units from Cardinal Civil Contracting, LLC and Continuing Equity Holders, gaining control over Cardinal's operations. The IPO includes a dual-class stock structure, with Class B shares retaining voting power. The company is an emerging growth company and a 'controlled company' under Nasdaq rules, with underwriters Stifel and William Blair managing the offering.

2025-08-11 · 0001213900-25-073875