---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-21-207646"
form_type: "8-K"
ticker: "PROK"
cik: "0001850270"
company_name: "PROKIDNEY CORP."
filed_at: "2021-07-02T23:59:59+00:00"
generated_at: "2026-06-30T07:43:49.640505+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# SPAC Social Capital Suvretta III closes $250M IPO and funds trust account

## Summary
- IPO of 25M Class A shares at $10.00 closed July 2, 2021; gross proceeds $250M.
- Concurrent private sale of 640k Private Placement Shares to sponsor for $6.4M.
- Proceeds placed in trust at JP Morgan/Continental; restricted until business combination or 24-month deadline.
- Marc Semigran appointed to board as chairman of audit, compensation, and nominating committees.
- Company targets biotechnology industry, specifically the organ space subsector.

## SEC filing metadata
- accession: 0001193125-21-207646
- form_type: 8-K
- ticker: PROK
- cik: 0001850270
- company_name: PROKIDNEY CORP.
- filed_at: 2021-07-02T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 1.01, 3.02, 5.02, 5.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1850270/000119312521207646/0001193125-21-207646-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1850270/000119312521207646/d123596d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-21-207646
- JSON: https://secwatch.observer/filing/0001193125-21-207646.json
- Plain text: https://secwatch.observer/filing/0001193125-21-207646.txt

## Key facts
- Executive change
  Marc Semigran was appointed as Director at PROKIDNEY CORP..
  - Action: appointed
  - Role: Director
  source text: On June 29, 2021, in connection with the IPO, Marc Semigran was appointed to the board of directors of the Company
  evidence_url: https://www.sec.gov/Archives/edgar/data/1850270/000119312521207646/0001193125-21-207646-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.