# EDGAR Filing Document

**Accession Number:** 0001850270
**File Stem:** 0001140361-25-040375
**Filing Date:** 2025-11
**Character Count:** 2913
**Document Hash:** 3e500581c4feb140a7f301f24bc257c5
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001140361-25-040375.hdr.sgml**: 20251105

**ACCESSION NUMBER**: 0001140361-25-040375

**CONFORMED SUBMISSION TYPE**: DEL AM

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20251105

**DATE AS OF CHANGE**: 20251104

**EFFECTIVENESS DATE**: 20251105

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** PROKIDNEY CORP.
- **CENTRAL INDEX KEY:** 0001850270
- **STANDARD INDUSTRIAL CLASSIFICATION:** BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 981586514
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** DEL AM
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-266683
- **FILM NUMBER:** 251451344

**BUSINESS ADDRESS:**
- **STREET 1:** 2000 FRONTIS PLAZA BLVD.
- **STREET 2:** SUITE 250
- **CITY:** WINSTON-SALEM
- **STATE:** NC
- **ZIP:** 27103
- **BUSINESS PHONE:** 336-999-7028

**MAIL ADDRESS:**
- **STREET 1:** 2000 FRONTIS PLAZA BLVD.
- **STREET 2:** SUITE 250
- **CITY:** WINSTON-SALEM
- **STATE:** NC
- **ZIP:** 27103

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Social Capital Suvretta Holdings Corp. III
- **DATE OF NAME CHANGE:** 20210310

------

November 4, 2025

#### VIA EDGAR
U.S. Securities and Exchange Commission

Division of Investment Management

100 F Street, NE

Washington, DC 20549

---

| | |
|:---|:---|
| ***Re***: | ProKidney Corp. (the "Company")<br> Post-Effective Amendment No. 3 to Registration Statement on Form S-1 on Form S-3; File No. 333-266683 |

---

Ladies and Gentlemen:

Pursuant to Rule 473(c) of the Securities Act of 1933 (the "Act"), the following delaying amendment, prescribed by Rule 473(a) of the Act, is hereby incorporated into the facing page of Post-Effective Amendment No. 3 to Registration Statement on Form S-1 on Form S-3 (File No. 333-266683) filed by ProKidney Corp. on October 21, 2025:

"The registrant hereby amends this registration statement on such date or dates as may be necessary to delay its effective date until the registrant shall file a further amendment which specifically states that this registration statement shall thereafter become effective in accordance with section 8(a) of the Securities Act of 1933 or until the registration statement shall become effective on such dates as the Commission, acting pursuant to said section 8(a), may determine."

If you have any questions or comments in connection with this delaying amendment, please contact Jason S. McCaffrey of Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C. at (617) 348-4416 or by email at JSMcCaffrey@mintz.com.

---

| |
|:---|
| PROKIDNEY CORP. |
| */s/ Todd Girolamo* |
| Todd Girolamo |
| Chief Legal Officer |

---

cc: Bruce Culleton, M.D., ProKidney Corp.

William Hicks, Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.

Jason McCaffrey, Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.

------