Erik Daniel West - 09 Dec 2025 Form 4 Insider Report for Cardinal Infrastructure Group Inc.

Role
Officer, 10%+ Owner
Signature
/s/ Tiffany Gidley, Attorney-in-fact
Issuer symbol
CDNL on Nasdaq
Transactions as of
09 Dec 2025
Net transactions value
-$41,662,488
Form type
4
Filing time
11 Dec 2025, 17:54:41 UTC
Next filing
10 Dec 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
West Erik Daniel Officer, 10%+ Owner C/O CARDINAL INFRASTRUCTURE GROUP INC., 100 E. SIX FORKS ROAD, #300, RALEIGH /s/ Tiffany Gidley, Attorney-in-fact 11 Dec 2025 0002099974

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CDNL Class B Common Stock Award +6,749,496 6,749,496 09 Dec 2025 Direct F1
transaction CDNL Class B Common Stock Disposed to Issuer -1,653,571 -24% 5,095,925 11 Dec 2025 Direct F2
transaction CDNL Class B Common Stock Award +1,348,441 1,348,441 09 Dec 2025 By West Family 2024 Irrevocable Trust U/A dated 3/20/24, as amended F1, F3
transaction CDNL Class B Common Stock Disposed to Issuer -330,357 -24% 1,018,084 11 Dec 2025 By West Family 2024 Irrevocable Trust U/A dated 3/20/24, as amended F2, F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction CDNL LLC Units Award +6,749,496 6,749,496 09 Dec 2025 Class A Common Stock 6,749,496 Direct F1, F4
transaction CDNL LLC Units Disposed to Issuer $34,724,991 -1,653,571 -24% $21.00 5,095,925 11 Dec 2025 Class A Common Stock 1,653,571 Direct F4
transaction CDNL LLC Units Award +1,348,441 1,348,441 09 Dec 2025 Class A Common Stock 1,348,441 By West Family 2024 Irrevocable Trust U/A dated 3/20/24, as amended F1, F3, F4
transaction CDNL LLC Units Disposed to Issuer $6,937,497 -330,357 -24% $21.00 1,018,084 11 Dec 2025 Class A Common Stock 330,357 By West Family 2024 Irrevocable Trust U/A dated 3/20/24, as amended F3, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
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[s].
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 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.
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.

Remarks:

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