SCHEDULE 13D

CUSIP No.

1

Name of reporting person

Carlos Slim Helu

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

WC

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

MEXICO

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 73,842,723.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 73,842,723.00

11

Aggregate amount beneficially owned by each reporting person

73,842,723.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

36.0 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

Based on 205,061,550 shares of Class A Common Stock (as defined in Item 1 below) outstanding, which is the sum of (i) 141,942,905 shares of Class A Common Stock outstanding as of March 17, 2026, as disclosed in the Issuer's Annual Report on Form 10-K filed with the SEC on March 18, 2026 and (ii) 63,118,645 shares of Class A Common Stock issued by the Issuer to the Reporting Persons upon exchange of the Paired Interests (as defined in Item 4 below) held by Control Empresarial on the Transaction Date (as defined in Item 4 below).

SCHEDULE 13D

CUSIP No.

1

Name of reporting person

Carlos Slim Domit

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

WC

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

MEXICO

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 73,842,723.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 73,842,723.00

11

Aggregate amount beneficially owned by each reporting person

73,842,723.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

36.0 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

Based on 205,061,550 shares of Class A Common Stock outstanding, which is the sum of (i) 141,942,905 shares of Class A Common Stock outstanding as of March 17, 2026, as disclosed in the Issuer's Annual Report on Form 10-K filed with the SEC on March 18, 2026 and (ii) 63,118,645 shares of Class A Common Stock issued by the Issuer to the Reporting Persons upon exchange of the Paired Interests held by Control Empresarial on the Transaction Date.

SCHEDULE 13D

CUSIP No.

1

Name of reporting person

Marco Antonio Slim Domit

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

WC

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

MEXICO

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 73,842,723.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 73,842,723.00

11

Aggregate amount beneficially owned by each reporting person

73,842,723.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

36.0 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

Based on 205,061,550 shares of Class A Common Stock outstanding, which is the sum of (i) 141,942,905 shares of Class A Common Stock outstanding as of March 17, 2026, as disclosed in the Issuer's Annual Report on Form 10-K filed with the SEC on March 18, 2026 and (ii) 63,118,645 shares of Class A Common Stock issued by the Issuer to the Reporting Persons upon exchange of the Paired Interests held by Control Empresarial on the Transaction Date.

SCHEDULE 13D

CUSIP No.

1

Name of reporting person

Patrick Slim Domit

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

WC

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

MEXICO

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 73,842,723.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 73,842,723.00

11

Aggregate amount beneficially owned by each reporting person

73,842,723.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

36.0 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

Based on 205,061,550 shares of Class A Common Stock outstanding, which is the sum of (i) 141,942,905 shares of Class A Common Stock outstanding as of March 17, 2026, as disclosed in the Issuer's Annual Report on Form 10-K filed with the SEC on March 18, 2026 and (ii) 63,118,645 shares of Class A Common Stock issued by the Issuer to the Reporting Persons upon exchange of the Paired Interests held by Control Empresarial on the Transaction Date.

SCHEDULE 13D

CUSIP No.

1

Name of reporting person

Maria Soumaya Slim Domit

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

WC

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

MEXICO

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 73,842,723.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 73,842,723.00

11

Aggregate amount beneficially owned by each reporting person

73,842,723.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

36.0 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

Based on 205,061,550 shares of Class A Common Stock outstanding, which is the sum of (i) 141,942,905 shares of Class A Common Stock outstanding as of March 17, 2026, as disclosed in the Issuer's Annual Report on Form 10-K filed with the SEC on March 18, 2026 and (ii) 63,118,645 shares of Class A Common Stock issued by the Issuer to the Reporting Persons upon exchange of the Paired Interests held by Control Empresarial on the Transaction Date.

SCHEDULE 13D

CUSIP No.

1

Name of reporting person

Vanessa Paola Slim Domit

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

WC

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

MEXICO

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 73,842,723.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 73,842,723.00

11

Aggregate amount beneficially owned by each reporting person

73,842,723.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

36.0 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

Based on 205,061,550 shares of Class A Common Stock outstanding, which is the sum of (i) 141,942,905 shares of Class A Common Stock outstanding as of March 17, 2026, as disclosed in the Issuer's Annual Report on Form 10-K filed with the SEC on March 18, 2026 and (ii) 63,118,645 shares of Class A Common Stock issued by the Issuer to the Reporting Persons upon exchange of the Paired Interests held by Control Empresarial on the Transaction Date.

SCHEDULE 13D

CUSIP No.

1

Name of reporting person

Johanna Monique Slim Domit

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

WC

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

MEXICO

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 73,842,723.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 73,842,723.00

11

Aggregate amount beneficially owned by each reporting person

73,842,723.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

36.0 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

Based on 205,061,550 shares of Class A Common Stock outstanding, which is the sum of (i) 141,942,905 shares of Class A Common Stock outstanding as of March 17, 2026, as disclosed in the Issuer's Annual Report on Form 10-K filed with the SEC on March 18, 2026 and (ii) 63,118,645 shares of Class A Common Stock issued by the Issuer to the Reporting Persons upon exchange of the Paired Interests held by Control Empresarial on the Transaction Date.

SCHEDULE 13D

CUSIP No.

1

Name of reporting person

Control Empresarial de Capitales S.A. de C.V.

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

WC

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

MEXICO

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 73,842,723.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 73,842,723.00

11

Aggregate amount beneficially owned by each reporting person

73,842,723.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

36.0 %

14

Type of Reporting Person (See Instructions)

CO, HC

Comment for Type of Reporting Person:

Based on 205,061,550 shares of Class A Common Stock outstanding, which is the sum of (i) 141,942,905 shares of Class A Common Stock outstanding as of March 17, 2026, as disclosed in the Issuer's Annual Report on Form 10-K filed with the SEC on March 18, 2026 and (ii) 63,118,645 shares of Class A Common Stock issued by the Issuer to the Reporting Persons upon exchange of the Paired Interests held by Control Empresarial on the Transaction Date.

SCHEDULE 13D

Item 1.

Security and Issuer

(a)

Title of Class of Securities:

Class A Common Stock, par value $0.0001 per share

(b)

Name of Issuer:

ProKidney Corp.

(c)

Address of Issuer's Principal Executive Offices:

2000 FRONTIS PLAZA BLVD., SUITE 250, WINSTON-SALEM, NORTH CAROLINA , 27103.

Item 1 Comment:

This Amendment No. 2 (the "Second Amendment") amends and supplements the Schedule 13D filed with the Securities and Exchange Commission (the "SEC") on July 22, 2022 by the Reporting Persons, as amended and supplemented by Amendment No. 1 filed on June 25, 2024 (the "Original Schedule 13D" and, as amended by this Second Amendment, the "Schedule 13D") with respect to the shares of Class A common stock, $0.0001 par value (the "Class A Common Stock") of ProKidney Corp (the "Issuer" or "ProKidney"). Capitalized terms used but not otherwise defined in this Second Amendment have the meanings ascribed to such terms in the Original Schedule 13D. This Second Amendment supplements Item 4 and amends and restates Items 5(a)-(c) as set forth below.

Item 4.

Purpose of Transaction

Delaware Domestication On July 1, 2025, the Issuer effected a domestication from the Caymans Islands to the State of Delaware (the "Domestication"). Effective as of July 1, 2025, each (i) Class A ordinary share automatically converted into one share of Class A Common Stock of the Issuer and (ii) each Class B ordinary share automatically converted into one share of Class B common stock of the Issuer. Exchange Agreement Prior to April 28, 2026 (the "Transaction Date"), in addition to 10,724,078 shares of Class A Common Stock, the Reporting Persons beneficially owned 63,118,645 shares of Class B common stock of the Issuer held by Control Empresarial, each of which may, subject to the limitations set forth in the Amended and Restated Exchange Agreement and the Holdings LLCA (each as defined and as described in the Issuer's Current Report on Form 8-K filed with the SEC on July 3, 2025), be exchanged, together with the paired common unit in ProKidney Holdings, LLC (the "Paired Interests"), for a share of Class A Common Stock on a one-for-one basis. Control Empresarial held 63,118,645 Paired Interests prior to the Transaction Date. On the Transaction Date, Control Empresarial exchanged 63,118,645 Paired Interests for 63,118,645 shares of Class A Common Stock. As a result, as of the date of this filing, the Reporting Persons beneficially own 73,842,723 shares of Class A Common Stock.

Item 5.

Interest in Securities of the Issuer

(a)

Calculations of the percentage of the Class A Common Stock beneficially owned by each Reporting Person are based on 205,061,550 shares of Class A Common Stock outstanding, which is the sum of (i) 141,942,905 shares of Class A Common Stock outstanding as of March 17, 2026, as disclosed in the Issuer's Annual Report on Form 10-K filed with the SEC on March 18, 2026 and (ii) 63,118,645 shares of Class A Common Stock issued by the Issuer to the Reporting Persons upon exchange of the Paired Interests held by Control Empresarial on the Transaction Date. As of the date of this filing, (i) Control Empresarial, directly or indirectly, owns 73,842,723 shares of Class A Common Stock (representing a 36.0% of the outstanding shares of Class A Common Stock ), and (ii) the Slim Family, which are beneficiaries of a Mexican trust that owns all of the issued and outstanding voting equity securities of Control Empresarial, may be deemed to beneficially own indirectly the Class A Common Stock beneficially owned directly by Control Empresarial.

(b)

73,842,723 shares of Class A Common Stock (representing a 36.0% of the outstanding shares of Class A Common Stock.

(c)

Except as set forth in Item 4 of this Second Amendment, no transactions have been effected by the Reporting Persons in the past sixty (60) days.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Carlos Slim Helu

Signature:	/s/ Victor Manuel Gutierrez Lopez
Name/Title:	Victor Manuel Gutierrez Lopez, Attorney in Fact*
Date:	04/30/2026

Carlos Slim Domit

Signature:	/s/ Victor Manuel Gutierrez Lopez
Name/Title:	Victor Manuel Gutierrez Lopez, Attorney in Fact*
Date:	04/30/2026

Marco Antonio Slim Domit

Signature:	/s/ Victor Manuel Gutierrez Lopez
Name/Title:	Victor Manuel Gutierrez Lopez, Attorney in Fact*
Date:	04/30/2026

Patrick Slim Domit

Signature:	/s/ Victor Manuel Gutierrez Lopez
Name/Title:	Victor Manuel Gutierrez Lopez, Attorney in Fact*
Date:	04/30/2026

Maria Soumaya Slim Domit

Signature:	/s/ Victor Manuel Gutierrez Lopez
Name/Title:	Victor Manuel Gutierrez Lopez, Attorney in Fact*
Date:	04/30/2026

Vanessa Paola Slim Domit

Signature:	/s/ Victor Manuel Gutierrez Lopez
Name/Title:	Victor Manuel Gutierrez Lopez, Attorney in Fact*
Date:	04/30/2026

Johanna Monique Slim Domit

Signature:	/s/ Victor Manuel Gutierrez Lopez
Name/Title:	Victor Manuel Gutierrez Lopez, Attorney in Fact*
Date:	04/30/2026

Control Empresarial de Capitales S.A. de C.V.

Signature:	/s/ Victor Manuel Gutierrez Lopez
Name/Title:	Victor Manuel Gutierrez Lopez, Attorney in Fact*
Date:	04/30/2026

Comments accompanying signature:

* See the Powers of Attorney for the members of the Slim Family and Control Empresarial, which are filed as exhibits to the Schedule 13D/A filed by the Slim Family and Control Empresarial with the SEC on March 4, 2026 in connection with their beneficial ownership of shares of Class A Common Stock, $0.001 par value per share of PBF Energy Inc., are hereby incorporated herein by reference.