# EDGAR Filing Document

**Accession Number:** 0002079999
**File Stem:** 0001213900-25-120810
**Filing Date:** 2025-12
**Character Count:** 8201
**Document Hash:** 3e275de8337e3e65f4e1549b3e296b97
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001213900-25-120810.hdr.sgml**: 20251211

**ACCESSION NUMBER**: 0001213900-25-120810

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251209

**FILED AS OF DATE**: 20251211

**DATE AS OF CHANGE**: 20251211

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** West Erik Daniel
- **CENTRAL INDEX KEY:** 0002099974

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-43004
- **FILM NUMBER:** 251565985

**MAIL ADDRESS:**
- **STREET 1:** 100 E. SIX FORKS RD, SUITE 300
- **CITY:** RALEIGH
- **STATE:** NC
- **ZIP:** 27609
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Cardinal Infrastructure Group Inc.
- **CENTRAL INDEX KEY:** 0002079999
- **STANDARD INDUSTRIAL CLASSIFICATION:** HEAVY CONSTRUCTION OTHER THAN BUILDING CONST - CONTRACTORS [1600]
- **ORGANIZATION NAME:** 05 Real Estate & Construction
- **EIN:** 393180206
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 100 E. SIX FORKS ROAD, #300
- **CITY:** RALEIGH
- **STATE:** NC
- **ZIP:** 27609
- **BUSINESS PHONE:** (919) 324-1964

**MAIL ADDRESS:**
- **STREET 1:** 100 E. SIX FORKS ROAD, #300
- **CITY:** RALEIGH
- **STATE:** NC
- **ZIP:** 27609

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Civil Infrastructure Group Inc.
- **DATE OF NAME CHANGE:** 20250805

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>West Erik Daniel<br><sub>(Last) (First) (Middle)</sub><br>C/O CARDINAL INFRASTRUCTURE GROUP INC.<br>100 E. SIX FORKS ROAD, #300<br><sub>(Street)</sub><br>RALEIGH, NC 27609<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2025-12-09 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_See Remarks_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Cardinal Infrastructure Group Inc. [ CDNL ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Class B Common Stock | 2025-12-09 |  | A<sup>(1)</sup> |  | 6749496 | A | <sup>(1)</sup> | 6749496 | D |  |
| Class B Common Stock | 2025-12-11 |  | D |  | 1653571 | D | <sup>(2)</sup> | 5095925 | D |  |
| Class B Common Stock | 2025-12-09 |  | A<sup>(1)</sup> |  | 1348441 | A | <sup>(1)</sup> | 1348441 | I | By West Family 2024 Irrevocable Trust U/A dated 3/20/24, as amended<sup>(3)</sup> |
| Class B Common Stock | 2025-12-11 |  | D |  | 330357 | D | <sup>(2)</sup> | 1018084 | I | By West Family 2024 Irrevocable Trust U/A dated 3/20/24, as amended<sup>(3)</sup> |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| LLC Units | <sup>(4)</sup> | 2025-12-09 |  | A<sup>(1)</sup> |  | 6749496 |  | <sup>(4)</sup> | <sup>(4)</sup> | Class A Common Stock | 6749496 | <sup>(1)</sup> | 6749496 | D |  |
| LLC Units | <sup>(4)</sup> | 2025-12-11 |  | D |  |  | 1653571 | <sup>(4)</sup> | <sup>(4)</sup> | Class A Common Stock | 1653571 | $21.00 | 5095925 | D |  |
| LLC Units | <sup>(4)</sup> | 2025-12-09 |  | A<sup>(1)</sup> |  | 1348441 |  | <sup>(4)</sup> | <sup>(4)</sup> | Class A Common Stock | 1348441 | <sup>(1)</sup> | 1348441 | I | By West Family 2024 Irrevocable Trust U/A dated 3/20/24, as amended<sup>(3)</sup> |
| LLC Units | <sup>(4)</sup> | 2025-12-11 |  | D |  |  | 330357 | <sup>(4)</sup> | <sup>(4)</sup> | Class A Common Stock | 330357 | $21.00 | 1018084 | I | By West Family 2024 Irrevocable Trust U/A dated 3/20/24, as amended<sup>(3)</sup> |

---

### Footnotes:

(1) 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[s].

(2) 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").

(3) The Reporting Person is the spouse of the trustee of West Family 2024 Irrevocable Trust U/A dated 3/20/24, as amended ("West Trust"), and as a result, may be deemed to share beneficial ownership of the securities held of record by West Trust.

(4) 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.

**Remarks:**
Chief Operating Officer of Cardinal Civil Contracting Holdings LLC, of which the Issuer is the sole managing member.

**Signature:** /s/ Tiffany Gidley, Attorney-in-fact  
**Date:** 2025-12-11

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**