PROK insider transaction filings
PROKIDNEY CORP. — 50 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2026-08-20. Screen PROK transaction legs live →
Insider transaction summary — last 90 days
2026-06-24 to 2026-09-22, from the filings listed below: 3 Form 4 filings. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 6 legs across 1 filing by 1 insider — 757,164 shares, $1,067,773 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 7.
- Largest priced transaction: sale of 222,949 shares @ $1.44 ($321,203) by Pereira Brian JG, filed 2026-08-20.
By insider — same window
Open-market purchase/sale legs on non-derivative securities, grouped by the filing's reporting owner(s); joint filings appear once. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Insider | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|
| Pereira Brian JG — Director | 2 | — | 6 legs · 757,164 sh · $1,067,773 | 6 |
| Locke Kenneth Thomas — Chief Technical Officer | 1 | — | — | 1 |
Recent Form 4 filings — PROKIDNEY CORP.
| Filed | Form | Insider | Reported transactions | Source |
|---|---|---|---|---|
| 2026-08-20 | 4 | Pereira Brian JG — Director | Sale (S): 229,338 @ $1.37 · Sale (S): 27,826 @ $1.37 · Sale (S): 222,949 @ $1.44 · Sale (S): 27,051 @ $1.44 · Sale (S): 222,948 @ $1.42 · Sale (S): 27,052 @ $1.42 | EDGAR |
| 2026-08-06 | 4 | Pereira Brian JG — Director | Conversion (C): 81,929 @ $0 · Conversion (C): 675,235 @ $0 · Conversion (C): 81,929 (derivative) @ $0 · Conversion (C): 81,929 (derivative) @ $0 · Conversion (C): 675,235 (derivative) @ $0 · Conversion (C): 675,235 (derivative) @ $0 | EDGAR |
| 2026-07-06 | 4 | Locke Kenneth Thomas — Chief Technical Officer | Grant/award (A): 750,000 (derivative) @ $0 | EDGAR |
| 2026-06-15 | 4 | Girolamo Todd C — Chief Legal Officer | Conversion (C): 163,857 @ $0 · Conversion (C): 163,857 (derivative) @ $0 · Conversion (C): 163,857 (derivative) @ $0 | EDGAR |
| 2026-05-29 | 4 | Jimenez Santos Jose Ignacio — Director | Grant/award (A): 135,000 (derivative) @ $0 | EDGAR |
| 2026-05-29 | 4 | Fox Jennifer A. — Director | Grant/award (A): 135,000 (derivative) @ $0 | EDGAR |
| 2026-05-29 | 4 | Sinha Uma — Director | Grant/award (A): 135,000 (derivative) @ $0 | EDGAR |
| 2026-05-29 | 4 | Legorreta Pablo G. — Director, 10% owner | Grant/award (A): 135,000 (derivative) @ $0 | EDGAR |
| 2026-05-29 | 4 | Lotvin Alan — Director | Grant/award (A): 135,000 (derivative) @ $0 | EDGAR |
| 2026-05-29 | 4 | Pereira Brian JG — Director | Grant/award (A): 135,000 (derivative) @ $0 | EDGAR |
| 2026-05-29 | 4 | DOYLE WILLIAM F — Director | Grant/award (A): 135,000 (derivative) @ $0 | EDGAR |
| 2026-04-30 | 4 | Control Empresarial de Capitales S.A. de C.V. — 10% owner | Conversion (C): 63,118,645 @ $0 · Conversion (C): 63,118,645 (derivative) @ $0 · Conversion (C): 63,118,645 (derivative) @ $0 | EDGAR |
| 2026-03-03 | 4 | Coulston James — Chief Financial Officer | Grant/award (A): 600,000 (derivative) @ $0 | EDGAR |
| 2026-03-03 | 4 | Weber Darin J. — Chief Regulatory Officer | Grant/award (A): 400,000 (derivative) @ $0 | EDGAR |
| 2026-03-03 | 4 | Girolamo Todd C — Chief Legal Officer | Grant/award (A): 600,000 (derivative) @ $0 | EDGAR |
| 2026-03-03 | 4 | Culleton Bruce — Chief Executive Officer, Director | Grant/award (A): 3,000,000 (derivative) @ $0 | EDGAR |
| 2025-11-14 | 4 | Pereira Brian JG — Director | Sale (S): 227,431 @ $2.72 · Sale (S): 27,595 @ $2.72 · Sale (S): 447,803 @ $2.37 · Sale (S): 54,333 @ $2.37 | EDGAR |
| 2025-07-11 | 4 | Cowen Aaron — 10% owner | Holdings only — no transactions reported | EDGAR |
| 2025-07-09 | 4 | Weber Darin J. — Chief Regulatory Officer | Sale (S): 103,480 @ $3.02 | EDGAR |
| 2025-06-05 | 4 | Legorreta Pablo G. — Director, 10% owner Tolerantia, LLC — 10% owner | Conversion (C): 3,823,996 @ $0 · Other (J): 3,823,996 @ $0 · Conversion (C): 3,823,996 (derivative) @ $0 · Conversion (C): 3,823,996 (derivative) @ $0 | EDGAR |
| 2025-06-02 | 4 | Jimenez Santos Jose Ignacio — Director | Grant/award (A): 125,862 (derivative) @ $0 | EDGAR |
| 2025-06-02 | 4 | Fox Jennifer A. — Director | Grant/award (A): 125,862 (derivative) @ $0 | EDGAR |
| 2025-06-02 | 4 | Sinha Uma — Director | Grant/award (A): 125,862 (derivative) @ $0 | EDGAR |
| 2025-06-02 | 4 | Legorreta Pablo G. — Director, 10% owner | Grant/award (A): 125,862 (derivative) @ $0 | EDGAR |
| 2025-06-02 | 4 | Lotvin Alan — Director | Grant/award (A): 125,862 (derivative) @ $0 | EDGAR |
| 2025-06-02 | 4 | Pereira Brian JG — Director | Grant/award (A): 125,862 (derivative) @ $0 | EDGAR |
| 2025-06-02 | 4 | DOYLE WILLIAM F — Director | Grant/award (A): 125,862 (derivative) @ $0 | EDGAR |
| 2025-04-24 | 4 | Control Empresarial de Capitales S.A. de C.V. — 10% owner | Purchase (P): 387,393 @ $0.71 | EDGAR |
| 2025-04-21 | 4 | Control Empresarial de Capitales S.A. de C.V. — 10% owner | Purchase (P): 25,000 @ $0.75 | EDGAR |
| 2025-04-18 | 4 | Control Empresarial de Capitales S.A. de C.V. — 10% owner | Purchase (P): 100,000 @ $0.75 | EDGAR |
| 2025-04-16 | 4 | Control Empresarial de Capitales S.A. de C.V. — 10% owner | Purchase (P): 268,105 @ $0.73 · Purchase (P): 468,000 @ $0.70 | EDGAR |
| 2025-04-14 | 4 | Control Empresarial de Capitales S.A. de C.V. — 10% owner | Purchase (P): 1,032,218 @ $0.61 · Purchase (P): 1,900 @ $0.61 | EDGAR |
| 2025-03-04 | 4 | Culleton Bruce — Chief Executive Officer, Director | Grant/award (A): 1,796,000 (derivative) @ $0 | EDGAR |
| 2025-03-04 | 4 | Weber Darin J. — Chief Regulatory Officer | Grant/award (A): 450,000 (derivative) @ $0 | EDGAR |
| 2025-03-04 | 4 | Girolamo Todd C — Chief Legal Officer | Grant/award (A): 650,000 (derivative) @ $0 | EDGAR |
| 2025-03-04 | 4 | Coulston James — Chief Financial Officer | Grant/award (A): 650,000 (derivative) @ $0 | EDGAR |
| 2025-02-06 | 4 | Legorreta Pablo G. — Director, 10% owner Tolerantia, LLC — 10% owner | Conversion (C): 532,535 @ $0 · Other (J): 532,535 @ $0 · Conversion (C): 532,535 (derivative) @ $0 · Conversion (C): 532,535 (derivative) @ $0 | EDGAR |
| 2025-02-06 | 4 | Pereira Brian JG — Director | Conversion (C): 81,928 @ $0 · Conversion (C): 675,234 @ $0 · Conversion (C): 81,928 (derivative) @ $0 · Conversion (C): 81,928 (derivative) @ $0 · Conversion (C): 675,234 (derivative) @ $0 · Conversion (C): 675,234 (derivative) @ $0 | EDGAR |
| 2024-09-20 | 4 | Weber Darin J. — Chief Regulatory Officer | Sale (S): 16,412 @ $2.50 | EDGAR |
| 2024-09-16 | 4 | Culleton Bruce — Chief Executive Officer, Director | Grant/award (A): 500,000 (derivative) @ $0 | EDGAR |
| 2024-09-04 | 4 | Fox Jennifer A. — Director | Grant/award (A): 9,535 (derivative) @ $0 | EDGAR |
| 2024-08-02 | 4 | Girolamo Todd C — Chief Legal Officer | Conversion (C): 81,928 @ $0 · Conversion (C): 81,928 (derivative) @ $0 · Conversion (C): 81,928 (derivative) @ $0 | EDGAR |
| 2024-07-29 | 4 | Weber Darin J. — Chief Regulatory Officer | Sale (S): 826 @ $2.50 | EDGAR |
| 2024-06-25 | 4 | Control Empresarial de Capitales S.A. de C.V. — 10% owner | Purchase (P): 8,264,462 @ $2.42 | EDGAR |
| 2024-06-20 | 4 | Weber Darin J. — Chief Regulatory Officer | Sale (S): 17,238 @ $2.82 | EDGAR |
| 2024-06-14 | 4 | Legorreta Pablo G. — Director, 10% owner Tolerantia, LLC — 10% owner | Purchase (P): 22,617,909 @ $2.42 | EDGAR |
| 2024-06-03 | 4 | Legorreta Pablo G. — Director | Grant/award (A): 62,558 (derivative) @ $0 | EDGAR |
| 2024-06-03 | 4 | Lotvin Alan — Director | Grant/award (A): 62,558 (derivative) @ $0 | EDGAR |
| 2024-06-03 | 4 | Pereira Brian JG — Director | Grant/award (A): 62,558 (derivative) @ $0 | EDGAR |
| 2024-06-03 | 4 | DOYLE WILLIAM F — Director | Grant/award (A): 62,558 (derivative) @ $0 | EDGAR |
Recent 8-K events — PROKIDNEY CORP.
| Filed | Form | Items reported | Source |
|---|---|---|---|
| 2026-08-10 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-05-29 | 8-K | 5.07 — Submission of Matters to a Vote of Security Holders | EDGAR |
| 2026-05-15 | 8-K | 2.02 — Results of Operations and Financial Condition 7.01 — Regulation FD Disclosure 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-03-18 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-02-02 | 8-K | 7.01 — Regulation FD Disclosure 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-01-12 | 8-K | 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-11-10 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-10-17 | 8-K | 1.01 — Entry into a Material Definitive Agreement | EDGAR |
| 2025-08-12 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-07-15 | 8-K | 7.01 — Regulation FD Disclosure 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
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