PROK · NASDAQ · Biotechnology

ProKidney (PROK)

Develops rilparencel for advanced chronic kidney disease and type 2 diabetes.

$1.76
vs last close−0.07 (−4.06%)

13F · 13D/G · Form 4

Institutions16.05%48.54M shares
76 holders · as of Jun 30, 2026
Insiders4.02%12.14M shares
1 holder · as of Oct 22, 2024
Strategic holders35.36%106.90M shares
1 holder · as of Jun 5, 2025
Other44.57%134.74M shares
remainder

302.32M company shares as of Sep 23, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing

Two share counts disagree (302.32M in the company's Sep 23, 2026 report, 148.17M elsewhere); stakes use the report.

This company has 2 share classes; every stake here is a share of the whole company.

13F · 13D/G · Form 4

HolderStakeSharesDate
Tolerantia, LLCStrategic
35.36%106.90Mfiled Jun 5, 2025
Suvretta Capital Management, LLCInstitution
4.08%12.34M Aas of Jun 30, 2026
Aaron CowenInsider10 percent owner
4.02%12.14M Afiled Oct 22, 2024
Morgan StanleyInstitution
3.26%9.85M Aas of Jun 30, 2026
BlackRock, Inc.Institution
1.72%5.20M Aas of Jun 30, 2026
Geode Capital Management, LLCInstitution
0.79%2.39M Aas of Jun 30, 2026
Bleichroeder LPInstitution
0.66%2.00M Aas of Jun 30, 2026
Hennion & Walsh Asset Management, Inc.Institution
0.61%1.85M Aas of Jun 30, 2026
Artia Global Partners LPInstitution
0.60%1.81M Aas of Jun 30, 2026
Vanguard Capital Management LLCInstitution
0.39%1.18M Aas of Jun 30, 2026
Renaissance Technologies LLCInstitution
0.36%1.10M Aas of Jun 30, 2026
Millennium Management LLCInstitution
0.35%1.05M Aas of Jun 30, 2026
State Street CorpInstitution
0.35%1.05M Aas of Jun 30, 2026
Charles Schwab Investment Management IncInstitution
0.26%781,729 Aas of Jun 30, 2026
Sixth Street Partners Management Company, L.P.Institution
0.26%781,729 Aas of Jun 30, 2026
UBS Group AGInstitution
0.22%671,447 Aas of Jun 30, 2026
Northern Trust CorpInstitution
0.22%664,827 Aas of Jun 30, 2026
Myda Advisors LLCInstitution
0.21%640,775 Aas of Jun 30, 2026
Vanguard Fiduciary Trust CoInstitution
0.21%632,149 Aas of Jun 30, 2026
Bank of America Corp /DE/Institution
0.18%545,158 Aas of Jun 30, 2026
Vanguard Portfolio Management LLCInstitution
0.17%517,082 Aas of Jun 30, 2026
Voleon Capital Management LPInstitution
0.16%473,307 Aas of Jun 30, 2026
AmundiInstitution
0.10%304,151 Aas of Jun 30, 2026
Gsa Capital Partners LLPInstitution
0.10%301,622 Aas of Jun 30, 2026
Two Sigma Investments, LPInstitution
0.09%273,259 Aas of Jun 30, 2026

13F, as of Jun 30, 2026

76 holders · 48.54M shares · 24 new positions · 48 increased · 12 reduced · 22 closed

HolderShares% of companyChg q/qFiled
Suvretta Capital Management, LLC12.34M4.08%0Aug 14, 2026
Morgan Stanley9.85M3.26%+898.2KAug 13, 2026
BlackRock, Inc.5.20M1.72%+3.81MAug 7, 2026
Geode Capital Management, LLC2.39M0.79%+1.16MAug 12, 2026
Bleichroeder LP2.00M0.66%0Aug 13, 2026
Hennion & Walsh Asset Management, Inc.1.85M0.61%+236.1KJul 8, 2026
Artia Global Partners LP1.81M0.60%0Aug 14, 2026
Vanguard Capital Management LLC1.18M0.39%+28.3KAug 13, 2026

13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
Tolerantia, LLC36.50%106.90M13DJun 5, 2025
Control Empresarial de Capitales S.A. de C.V.incl. Carlos Slim Helu, Johanna Monique Slim Domit +5 more36.00%73.84M13DApr 30, 2026
Morgan Stanley6.00%8.52M13GFeb 12, 2026

Form 4

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Aug 20, 2026
Brian JG Pereiradirector
Sale27,052$1.420
Aug 19, 2026
Brian JG Pereiradirector
Sale · 2 lots250,000$1.44250,000
Aug 18, 2026
Brian JG Pereiradirector
Sale · 2 lots257,164$1.37500,000
Nov 13, 2025
Brian JG Pereiradirector
Sale54,333$2.370
Nov 12, 2025
Brian JG Pereiradirector
Sale · 2 lots255,026$2.7254,333

House and Senate disclosures

Not reported.