Comparable stake leader
Tolerantia, LLC
SEC ownership of PROKIDNEY CORP.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001850270.
Disclosed value leader
Pablo G. Legorreta
Comparable rows
4/50
Latest evidence
28 Oct 2026
- Public ticker
- PROK on Nasdaq
- Parsed ownership sources
-
13D/G, 3/4/5, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Tolerantia, LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
4 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Tolerantia, LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
28 Oct 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001850270
- Issuer location
- Winston Salem, NC
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of PROKIDNEY CORP. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Tolerantia, LLC
Disclosed value leader
Pablo G. Legorreta
Comparable rows
4/50
Latest evidence
28 Oct 2026
13D/G
3/4/5
13F
Lead comparable stake: 36%
46 rows are not safely comparable across share classes.
13D/G row: Tolerantia, LLC
Showing 1-8 of 50 holder rows.
Quick read
Tolerantia, LLC leads the comparable SEC ownership view at 36%.
4 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Tolerantia, LLC's linked filing trail.
Comparable ownership
Top 4
Tolerantia, LLC
36%
Control Empresarial de Capitales ...
36%
MORGAN STANLEY
4.7%
BlackRock, Inc.
1.4%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Tolerantia, LLC |
13D/G
|
36%
Reported 13D/G
· 03 Jun 2025
|
$93,004,165
106,901,339 shares
|
-$3,326,877 | 03 Jun 2025 |
| Control Empresarial de Capitales S.A. de C.V. |
13D/G
3/4/5
Other*, 10%+ Owner
|
36%
Reported 13D/G
· 28 Apr 2026
|
$132,052,942
73,842,723 shares
|
$0 | 28 Apr 2026 |
| MORGAN STANLEY |
13F
13D/G
Company
|
4.7%
Reported 13D/G
· 30 Jun 2026
|
$20,102,523
9,854,178 shares
|
— | 30 Jun 2026 |
| BlackRock, Inc. |
13F
13D/G
Company
|
1.4%
Reported 13D/G
· 30 Jun 2025
|
$10,602,343
5,197,227 shares
|
— | 30 Jun 2026 |
| Pablo G. Legorreta |
3/4/5
Director, 10%+ Owner
|
—
mixed-class rows
|
$396,228,878
213,937,678 shares
mixed-class rows
|
— | 28 May 2026 |
| SC Master Holdings, LLC |
3/4/5
10%+ Owner
|
—
denominator unverified
|
$17,374,357
13,273,000 shares
|
— | 11 Jul 2022 |
| Aaron Cowen |
3/4/5
10%+ Owner
|
—
denominator unverified
|
$2,143,751
857,500 shares
|
— | 11 Jul 2025 |
| MONTANOVA CAPITAL, LLC |
13F
Company
|
—
denominator unverified
|
$25,176,183
12,341,266 shares
|
— | 30 Jun 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$2,952,351.
Buys
$0
Insiders: 0
Sells
$2,952,351
Insiders: 1
Net
-$2,952,351
Shares: -1,514,326
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 1,514,326
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 757,164 | $0 | $1,067,773 | -$1,067,773 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 757,162 | $0 | $1,884,577 | -$1,884,577 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 26 reporting-owner rows connected to PROKIDNEY CORP.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
26
Largest Forms 3/4/5 holder
Pablo G. Legorreta
Net 12M change
-$2.95M
Full value: -$2,952,351 · USD · 12-month changeLatest report
02 Nov 2026
Recent insider transactions for PROKIDNEY CORP.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Bruce Culleton | PROK | Employee stock option (right to buy) | Award | 500,000 | 500,000 | 02 Nov 2026 | Direct | |||
| Darin J. Weber | PROK | Class A Common Stock | Conversion of derivative security | 200,000 | 200,000 | 28 Oct 2026 | Direct | |||
| Darin J. Weber | PROK | Common Units in ProKidney Holdings, LLC | Conversion of derivative security | -49.7% | -200,000 | 202,283 | 28 Oct 2026 | Direct | ||
| Darin J. Weber | PROK | Class B Common Stock | Conversion of derivative security | -49.7% | -200,000 | 202,283 | 28 Oct 2026 | Direct | ||
| Brian Jg Pereira | PROK | Class A Common Stock | Sale | -100% | -$38,411 | $1.42 | -27,052 | 0 | 20 Aug 2026 | Direct |
| Brian Jg Pereira | PROK | Class A Common Stock | Sale | -100% | -$316,564 | $1.42 | -222,948 | 0 | 20 Aug 2026 | By Brian J. G. Pereira 2012 Irrevocable Trust |
| Brian Jg Pereira | PROK | Class A Common Stock | Sale | -50% | -$38,972 | $1.44 | -27,051 | 27,052 | 19 Aug 2026 | Direct |
| Brian Jg Pereira | PROK | Class A Common Stock | Sale | -50% | -$321,203 | $1.44 | -222,949 | 222,948 | 19 Aug 2026 | By Brian J. G. Pereira 2012 Irrevocable Trust |
| Brian Jg Pereira | PROK | Class A Common Stock | Sale | -34% | -$38,155 | $1.37 | -27,826 | 54,103 | 18 Aug 2026 | Direct |
| Brian Jg Pereira | PROK | Class A Common Stock | Sale | -34% | -$314,468 | $1.37 | -229,338 | 445,897 | 18 Aug 2026 | By Brian J. G. Pereira 2012 Irrevocable Trust |
| Brian Jg Pereira | PROK | Class A Common Stock | Conversion of derivative security | 675,235 | 675,235 | 04 Aug 2026 | By Brian J. G. Pereira 2012 Irrevocable Trust | |||
| Brian Jg Pereira | PROK | Class A Common Stock | Conversion of derivative security | 81,929 | 81,929 | 04 Aug 2026 | Direct | |||
| Brian Jg Pereira | PROK | Common Units in ProKidney Holdings, LLC | Conversion of derivative security | -100% | -675,235 | 0 | 04 Aug 2026 | By Brian J. G. Pereira 2012 Irrevocable Trust | ||
| Brian Jg Pereira | PROK | Class B Common Stock | Conversion of derivative security | -100% | -675,235 | 0 | 04 Aug 2026 | By Brian J. G. Pereira 2012 Irrevocable Trust | ||
| Brian Jg Pereira | PROK | Common Units in ProKidney Holdings, LLC | Conversion of derivative security | -100% | -81,929 | 0 | 04 Aug 2026 | Direct | ||
| Brian Jg Pereira | PROK | Class B Common Stock | Conversion of derivative security | -100% | -81,929 | 0 | 04 Aug 2026 | Direct | ||
| Kenneth Thomas Locke | PROK | Employee stock option (right to buy) | Award | 750,000 | 750,000 | 01 Jul 2026 | Direct | |||
| Todd C. Girolamo | PROK | Class A Common Stock | Conversion of derivative security | 100% | 163,857 | 327,713 | 12 Jun 2026 | Direct | ||
| Todd C. Girolamo | PROK | Common Units in ProKidney Holdings, LLC | Conversion of derivative security | -100% | -163,857 | 0 | 12 Jun 2026 | Direct | ||
| Todd C. Girolamo | PROK | Class B Common Stock | Conversion of derivative security | -100% | -163,857 | 0 | 12 Jun 2026 | Direct | ||
| Alan Lotvin | PROK | Director stock option (right to buy) | Award | 135,000 | 135,000 | 28 May 2026 | Direct | |||
| Santos Jose Ignacio Jimenez | PROK | Director stock option (right to buy) | Award | 135,000 | 135,000 | 28 May 2026 | Direct | |||
| Jennifer A. Fox | PROK | Director stock option (right to buy) | Award | 135,000 | 135,000 | 28 May 2026 | Direct | |||
| William F. Doyle | PROK | Director stock option (right to buy) | Award | 135,000 | 135,000 | 28 May 2026 | Direct | |||
| Uma Sinha | PROK | Director stock option (right to buy) | Award | 135,000 | 135,000 | 28 May 2026 | Direct | |||
| Pablo G. Legorreta | PROK | Director stock option (right to buy) | Award | 135,000 | 135,000 | 28 May 2026 | Direct | |||
| Brian Jg Pereira | PROK | Director stock option (right to buy) | Award | 135,000 | 135,000 | 28 May 2026 | Direct | |||
| Control Empresarial de Capitales S.A. de C.V. | PROK | Class A Common Shares (as defined in Exhibit 99.1 hereto) | Conversion of derivative security | 588.6% | 63,118,645 | 73,842,723 | 28 Apr 2026 | Direct | ||
| Control Empresarial de Capitales S.A. de C.V. | PROK | Common Units in ProKidney LLC | Conversion of derivative security | -100% | -63,118,645 | 0 | 28 Apr 2026 | Direct | ||
| Control Empresarial de Capitales S.A. de C.V. | PROK | Class B Common Shares | Conversion of derivative security | -100% | -63,118,645 | 0 | 28 Apr 2026 | Direct | ||
| James Coulston | PROK | Employee stock option (right to buy) | Award | 600,000 | 600,000 | 01 Mar 2026 | Direct | |||
| Darin J. Weber | PROK | Employee stock option (right to buy) | Award | 400,000 | 400,000 | 01 Mar 2026 | Direct | |||
| Todd C. Girolamo | PROK | Employee stock option (right to buy) | Award | 600,000 | 600,000 | 01 Mar 2026 | Direct | |||
| Bruce Culleton | PROK | Employee stock option (right to buy) | Award | 3,000,000 | 3,000,000 | 01 Mar 2026 | Direct | |||
| Brian Jg Pereira | PROK | Class A Common Stock | Sale | -100% | -$128,769 | $2.37 | -54,333 | 0 | 13 Nov 2025 | Brian J. G. Pereira 2004 Trust |
| Brian Jg Pereira | PROK | Class A Common Stock | Sale | -100% | -$1,061,293 | $2.37 | -447,803 | 0 | 13 Nov 2025 | By Brian J. G. Pereira 2012 Irrevocable Trust |
| Brian Jg Pereira | PROK | Class A Common Stock | Sale | -33.7% | -$75,152 | $2.72 | -27,595 | 54,333 | 12 Nov 2025 | Brian J. G. Pereira 2004 Trust |
| Brian Jg Pereira | PROK | Class A Common Stock | Sale | -33.7% | -$619,363 | $2.72 | -227,431 | 447,803 | 12 Nov 2025 | By Brian J. G. Pereira 2012 Irrevocable Trust |
* marks a reported price that did not pass the local price check.