Rowe Michael Bruce Jr. 4

4 · Cardinal Infrastructure Group Inc. · Filed Dec 11, 2025

Form 4

Period: 2025-12-09

Chief Financial Officer

Transactions

Award
Class B Common Stock
2025-12-09+2,429,624→ 2,429,624 total
Disposition to Issuer
Class B Common Stock
2025-12-11−595,238→ 1,834,386 total
Award
Class B Common Stock
2025-12-09+269,688→ 269,688 total(indirect: By Trust)
Disposition to Issuer
Class B Common Stock
2025-12-11−66,071→ 203,617 total(indirect: By Trust)
Award
LLC Units
2025-12-09+2,429,624→ 2,429,624 total
→ Class A Common Stock (2,429,624 underlying)
Disposition to Issuer
LLC Units
2025-12-11$21.00/sh−595,238$12,499,998→ 1,834,386 total
→ Class A Common Stock (595,238 underlying)
Award
LLC Units
2025-12-09+269,688→ 269,688 total(indirect: By Trust)
→ Class A Common Stock (269,688 underlying)
Disposition to Issuer
LLC Units
2025-12-11$21.00/sh−66,071$1,387,491→ 203,617 total(indirect: By Trust)
→ Class A Common Stock (66,071 underlying)

Footnotes (4)

[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.
[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").
[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.
[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.

Documents

1 file