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
Control Empresarial de Capitales S.A. de C.V.
Comparable rows
50/50
Latest evidence
28 Apr 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
-
50 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 Apr 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
Control Empresarial de Ca...
Comparable rows
50/50
Latest evidence
28 Apr 2026
13D/G
3/4/5
13F
Lead comparable stake: 36%
13D/G row: Tolerantia, LLC
Showing 1-8 of 50 holder rows.
Quick read
Tolerantia, LLC leads the comparable SEC ownership view at 36%.
50 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 5
Tolerantia, LLC
36%
Control Empresarial de Capitales ...
36%
MORGAN STANLEY
6%
BlackRock, Inc.
1.4%
SUVRETTA CAPITAL MANAGEMENT, LLC
6%
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%
|
$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%
|
$132,052,942
73,842,723 shares
|
$0 | 28 Apr 2026 |
| MORGAN STANLEY |
13D/G
13F
Company
|
6%
|
$19,510,759
8,519,982 shares
|
$0 | 31 Dec 2025 |
| BlackRock, Inc. |
13F
13D/G
Company
|
1.4%
from 13D/G
|
$2,482,938
1,387,116 shares
|
— | 31 Mar 2026 |
| SUVRETTA CAPITAL MANAGEMENT, LLC |
13F
Company
|
6%
|
$22,090,866
12,341,266 shares
|
— | 31 Mar 2026 |
| MILLENNIUM MANAGEMENT LLC |
13F
Company
|
1.1%
|
$4,066,123
2,271,577 shares
|
— | 31 Mar 2026 |
| Bleichroeder LP |
13F
Company
|
0.98%
|
$3,580,000
2,000,000 shares
|
— | 31 Mar 2026 |
| Artia Global Partners LP |
13F
Company
|
0.88%
|
$3,234,421
1,806,939 shares
|
— | 31 Mar 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: -$1,884,577.
Buys
$0
Insiders: 0
Sells
$1,884,577
Insiders: 1
Net
-$1,884,577
Shares: -757,162
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 757,162
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 757,162 | $0 | $1,884,577 | -$1,884,577 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
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
Legorreta G. Pablo
Net 12M change
-$1,884,577
Latest report
12 Jun 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| Darin J. Weber | PROK | Class A Common Stock | Sale | -100% | -103,480 | 0 | 08 Jul 2025 | Direct |
* marks a reported price that did not pass the local price check.