Michael Bruce Rowe Jr. - 09 Dec 2025 Form 4 Insider Report for Cardinal Infrastructure Group Inc.

Reporting relationship: Chief Financial Officer
Issuer ticker: CDNL on Nasdaq
Reported as of: 09 Dec 2025
Net transaction value: -$13,887,489
SEC form: 4
Accepted by SEC: 11 Dec 2025, 17:55:15 UTC
Next SEC filing: 10 Dec 2025
Source filing: View source filing
Reporting owner signature: /s/ Tiffany Gidley, Attorney-in-fact

Key filing fact

Michael Bruce Rowe Jr. filed Form 4 for Cardinal Infrastructure Group Inc. on 11 Dec 2025.

Key facts

This page summarizes Michael Bruce Rowe Jr.'s Form 4 filing for Cardinal Infrastructure Group Inc..
8 reported transactions and 4 derivative rows are listed below.
Accepted by SEC: 11 Dec 2025, 17:55.

Change

No earlier filing in this sequence is available for direct comparison.
Current net transaction value: -$13,887,489.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002091833 Primary reporting owner

Rowe Michael Bruce Jr.

Relationship: Chief Financial Officer
Address: C/O CARDINAL INFRASTRUCTURE GROUP INC., 100 E. SIX FORKS ROAD, #300, RALEIGH
Signature: /s/ Tiffany Gidley, Attorney-in-fact
Signature date: 11 Dec 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

CDNL transaction

Class B Common Stock

Award

Transaction value
Shares: +2,429,624
Change %
Price
Shares after: 2,429,624
Date: 09 Dec 2025
Ownership: Direct
Footnotes: F1

CDNL transaction

Class B Common Stock

Disposed to Issuer

Transaction value
Shares: -595,238
Change %: -24%
Price
Shares after: 1,834,386
Date: 11 Dec 2025
Ownership: Direct
Footnotes: F2

CDNL transaction

Class B Common Stock

Award

Transaction value
Shares: +269,688
Change %
Price
Shares after: 269,688
Date: 09 Dec 2025
Ownership: By The Rowe Family Irrevocable Trust dated March 13, 2024
Footnotes: F1, F3

CDNL transaction

Class B Common Stock

Disposed to Issuer

Transaction value
Shares: -66,071
Change %: -24%
Price
Shares after: 203,617
Date: 11 Dec 2025
Ownership: By The Rowe Family Irrevocable Trust dated March 13, 2024
Footnotes: F2, F3

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

CDNL transaction Derivative

LLC Units

Award

Transaction value
Shares: +2,429,624
Change %
Price
Shares after: 2,429,624
Date: 09 Dec 2025
Ownership: Direct
Underlying class: Class A Common Stock
Underlying amount: 2,429,624
Exercise price
Footnotes: F1, F4

CDNL transaction Derivative

LLC Units

Disposed to Issuer

Transaction value: $12,499,998
Shares: -595,238
Change %: -24%
Price: $21.00
Shares after: 1,834,386
Date: 11 Dec 2025
Ownership: Direct
Underlying class: Class A Common Stock
Underlying amount: 595,238
Exercise price
Footnotes: F4

CDNL transaction Derivative

LLC Units

Award

Transaction value
Shares: +269,688
Change %
Price
Shares after: 269,688
Date: 09 Dec 2025
Ownership: By The Rowe Family Irrevocable Trust dated March 13, 2024
Underlying class: Class A Common Stock
Underlying amount: 269,688
Exercise price
Footnotes: F1, F3, F4

CDNL transaction Derivative

LLC Units

Disposed to Issuer

Transaction value: $1,387,491
Shares: -66,071
Change %: -24%
Price: $21.00
Shares after: 203,617
Date: 11 Dec 2025
Ownership: By The Rowe Family Irrevocable Trust dated March 13, 2024
Underlying class: Class A Common Stock
Underlying amount: 66,071
Exercise price
Footnotes: F3, F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

Represents securities received as part of the Issuer's reorganization in connection with its initial public offering, as described in the registration statement on Form S-1 relating to the initial public offering. These securities were previously reported on a Form 3 filed by the Reporting Person.

Footnote F2

Reflects the cancellation for no consideration of Class B Common Stock in connection with the redemption of the membership units of Cardinal Civil Contracting Holdings LLC (the "LLC Units").

Footnote F3

The Reporting Person is the spouse of the trustee of The Rowe Family Irrevocable Trust dated March 13, 2024 ("Rowe Trust"), and as a result, may be deemed to share beneficial ownership of the securities held of record by Rowe Trust.

Footnote F4

The LLC Units may be redeemed by the Reporting Person at any time at the option of the holder for shares of Class A Common Stock on a 1-to-1 basis, and a corresponding number of shares of Class B Common Stock will be forfeited in connection with the redemption. The LLC Units have no expiration date.