Prokidney Corp.
PROK- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001850270
In the last 90 days, Prokidney Corp. insiders filed 0 open-market purchases and 1 sale; 71 institutions reported holding it in 13F filings for Q2 2026, worth $99.5M in total; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Prokidney Corp. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 1 filing
- 1 insider, $1.07M in total
- Insiders trading
- 1
- Net value
- −$1.07M
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Prokidney Corp., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Pereira Brian JG | Director | 0 | Aug 20, 2026 | 4 |
| Locke Kenneth Thomas | Chief Technical Officer | – | Jul 6, 2026 | 1 |
| Girolamo Todd C | Chief Legal Officer | 327,713 | Jun 15, 2026 | 2 |
| Doyle William F | Director | – | May 29, 2026 | 1 |
| Lotvin Alan | Director | – | May 29, 2026 | 1 |
| Legorreta Pablo G. | Director, 10% Owner | 22,617,909Indirect | May 29, 2026 | 1 |
| Sinha Uma | Director | 30,000 | May 29, 2026 | 1 |
| Fox Jennifer A. | Director | – | May 29, 2026 | 1 |
| Jimenez Santos Jose Ignacio | Director | – | May 29, 2026 | 1 |
| Control Empresarial de Capitales S.A. de C.V. | 10% Owner, Other: Add'l Rep. Persons-see Ex.99-1 | 73,842,723 | Apr 30, 2026 | 1 |
| Coulston James | Chief Financial Officer | – | Mar 3, 2026 | 1 |
| Weber Darin J. | Chief Regulatory Officer | 0 | Mar 3, 2026 | 1 |
| Culleton Bruce | Chief Executive Officer | – | Mar 3, 2026 | 1 |
| Cowen Aaron | 10% Owner | 4,050,675Indirect | Jul 11, 2025 | 0 |
| Tolerantia, LLC | 10% Owner | 22,617,909Indirect | Jun 5, 2025 | 0 |
| Ernst Ulrich Peter Alfred | EVP, Technical Operations | – | Apr 2, 2024 | 0 |
| Palihapitiya Chamath | Other: Former 10% Owner | 0Indirect | Nov 21, 2023 | 0 |
| SC Master Holdings, LLC | Other: Former 10% Owner | 0Indirect | Nov 21, 2023 | 0 |
| SC PIPE Holdings LLC | 10% Owner | 6,512,867Indirect | Nov 8, 2023 | 0 |
| Maraganore John | Director | – | Jul 3, 2023 | 0 |
| Bertram Timothy | Chief Executive Officer | – | Jan 18, 2023 | 0 |
| Weger Mary | Chief People Officer | – | Jan 18, 2023 | 0 |
| McKenzie Libbie Parker | Chief Medical Officer | – | Jan 18, 2023 | 0 |
| Jain Deepak | Chief Operating Officer | – | Jan 18, 2023 | 0 |
| SCS Sponsor III LLC | Other: Former Director and 10% Owner | 0 | Jul 13, 2022 | 0 |
| Mehta Kishan | Other: Former Director and 10% Owner | 0 | Jul 13, 2022 | 0 |
| ChaChaCha DNA III, LLC | Other: Former Director and 10% Owner | 0 | Jul 13, 2022 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 1, 2022 (view filing) | Aug 30-31 | 2 days | Cowen Aaron10% Owner | PPurchaseClass A Ordinary Shares | +3.87K | $8.67 | +$33.5K | +0.1%6.27M after | 3 lots |
| Sep 8, 2022 (view filing) | Sep 6 | 2 days | Cowen Aaron10% Owner | PPurchaseClass A Ordinary Shares | +7.01K | $6.99 | +$49.0K | +0.1%6.28M after | |
| Sep 21, 2023 (view filing)5:00 PM ET | Sep 19 | 2 days | Palihapitiya Chamath and 1 other10% Owner | SSaleClass A ordinary shares | −1.70M | $5.47 | −$9.30M | −45.1%2.07M after | |
| Oct 10, 2023 (view filing)9:32 PM ET | Oct 5-10 | 5 days | Palihapitiya Chamath and 2 others10% Owner | SSaleClass A ordinary shares | −277.6K | $4.42 | −$1.23M | −2.9%9.22M after | 4 lots |
| Oct 13, 2023 (view filing)9:30 PM ET | Oct 11-13 | 2 days | Palihapitiya Chamath and 2 others10% Owner | SSaleClass A ordinary shares | −486.9K | $2.86 | −$1.39M | −5.3%8.74M after | 4 lots |
| Oct 18, 2023 (view filing)9:00 PM ET | Oct 16-18 | 2 days | Palihapitiya Chamath and 2 others10% Owner | SSaleClass A ordinary shares | −447.0K | $2.70 | −$1.21M | −5.1%8.29M after | 3 lots |
| Oct 23, 2023 (view filing)9:00 PM ET | Oct 19-23 | 4 days | Palihapitiya Chamath and 2 others10% Owner | SSaleClass A ordinary shares | −447.5K | $2.01 | −$900.0K | −5.4%7.84M after | 3 lots |
| Oct 26, 2023 (view filing)9:00 PM ET | Oct 24-26 | 2 days | Palihapitiya Chamath and 2 others10% Owner | SSaleClass A ordinary shares | −321.5K | $1.77 | −$567.6K | −4.1%7.52M after | 3 lots |
| Oct 31, 2023 (view filing)9:30 PM ET | Oct 27-31 | 4 days | Palihapitiya Chamath and 2 others10% Owner | SSaleClass A ordinary shares | −391.4K | $1.65 | −$645.5K | −5.2%7.13M after | 3 lots |
| Nov 3, 2023 (view filing)9:00 PM ET | Nov 1-3 | 2 days | Palihapitiya Chamath and 2 others10% Owner | SSaleClass A ordinary shares | −405.4K | $1.70 | −$688.1K | −5.7%6.72M after | 3 lots |
| Nov 8, 2023 (view filing)9:00 PM ET | Nov 6-8 | 2 days | Palihapitiya Chamath and 2 others10% Owner | SSaleClass A ordinary shares | −209.8K | $1.60 | −$334.9K | −3.1%6.51M after | 3 lots |
| Nov 14, 2023 (view filing)9:15 PM ET | Nov 9-14 | 5 days | Palihapitiya Chamath and 1 other10% Owner | SSaleClass A ordinary shares | −576.7K | $1.56 | −$897.9K | −8.9%5.94M after | 4 lots |
| Nov 17, 2023 (view filing)9:00 PM ET | Nov 15-17 | 2 days | Palihapitiya Chamath and 1 other10% Owner | SSaleClass A ordinary shares | −752.8K | $1.31 | −$987.9K | −12.7%5.18M after | 3 lots |
| Nov 21, 2023 (view filing)6:30 AM ET | Nov 19 | 2 days | Palihapitiya Chamath and 1 otherOther: Former 10% Owner | SSaleClass A ordinary shares | −7.26M | $1.31 | −$9.50M | −100.0%0 after | 2 lots |
| Apr 16, 2024 (view filing) | Apr 1-12 | 15 daysLate | Weber Darin J.SVP of Regulatory Development | SSaleClass A Ordinary Shares | −84.4K | $1.73 | −$146.0K | −30.8%189.7K after | 2 lots10b5-1 |
| Apr 17, 2024 (view filing) | Apr 16 | 1 day | Weber Darin J.SVP of Regulatory Development | SSaleClass A Ordinary Shares | −17.2K | $2.50 | −$43.1K | −9.1%172.4K after | 10b5-1 |
| Apr 23, 2024 (view filing) | Apr 18-22 | 5 daysLate | Weber Darin J.SVP of Regulatory Development | SSaleClass A Ordinary Shares | −17.2K | $2.51 | −$43.3K | −10.0%155.2K after | 2 lots10b5-1 |
| May 16, 2024 (view filing) | Mar 13-25 | 64 daysLate | Control Empresarial de Capitales S.A. de C.V.10% Owner, Other: Add'l Rep. Persons-see Ex.99-1 | PPurchaseClass A Ordinary Shares (as defined in Exhibit 99.1 hereto) | +177.0K | $1.42 | +$251.7K | +0.3%63.3M after | 5 lots |
| May 22, 2024 (view filing) | May 20 | 2 days | Weber Darin J.Chief Regulatory Officer | SSaleClass A Ordinary Shares | −17.2K | $4.08 | −$70.3K | −11.1%138.0K after | 10b5-1 |
| Jun 14, 2024 (view filing)4:05 PM ET | Jun 13 | 1 day | Legorreta Pablo G. and 1 otherDirector, 10% Owner | PPurchaseClass A Ordinary Shares | +22.6M | $2.42 | +$54.7M | New position22.6M after | |
| Jun 20, 2024 (view filing) | Jun 18 | 2 days | Weber Darin J.Chief Regulatory Officer | SSaleClass A Ordinary Shares | −17.2K | $2.82 | −$48.6K | −12.5%120.7K after | 10b5-1 |
| Jun 25, 2024 (view filing) | Jun 11 | 14 daysLate | Control Empresarial de Capitales S.A. de C.V.10% Owner, Other: Add'l Rep. Persons-see Ex.99-1 | PPurchaseClass A Ordinary Shares (as defined in Exhibit 99.1 hereto) | +8.26M | $2.42 | +$20.0M | +13.1%71.6M after | |
| Jul 29, 2024 (view filing) | Jul 26 | 3 days | Weber Darin J.Chief Regulatory Officer | SSaleClass A Ordinary Shares | −826 | $2.50 | −$2.06K | −0.7%119.9K after | 10b5-1 |
| Sep 20, 2024 (view filing) | Sep 19 | 1 day | Weber Darin J.Chief Regulatory Officer | SSaleClass A Ordinary Shares | −16.4K | $2.50 | −$41.0K | −13.7%103.5K after | 10b5-1 |
| Apr 14, 2025 (view filing) | Apr 10-11 | 4 days | Control Empresarial de Capitales S.A. de C.V.10% Owner, Other: Add'l Rep. Persons-see Ex.99-1 | PPurchaseClass A Ordinary Shares (as defined in Exhibit 99.1 hereto) | +1.03M | $0.61 | +$630.8K | +1.4%72.6M after | 2 lots |
| Apr 16, 2025 (view filing) | Apr 14-15 | 2 days | Control Empresarial de Capitales S.A. de C.V.10% Owner, Other: Add'l Rep. Persons-see Ex.99-1 | PPurchaseClass A Ordinary Shares (as defined in Exhibit 99.1 hereto) | +736.1K | $0.7109 | +$523.3K | +1.0%73.3M after | 2 lots |
| Apr 18, 2025 (view filing) | Apr 16 | 2 days | Control Empresarial de Capitales S.A. de C.V.10% Owner, Other: Add'l Rep. Persons-see Ex.99-1 | PPurchaseClass A Ordinary Shares (as defined in Exhibit 99.1 hereto) | +100.0K | $0.75 | +$75.0K | +0.1%73.4M after | |
| Apr 21, 2025 (view filing) | Apr 17 | 4 days | Control Empresarial de Capitales S.A. de C.V.10% Owner, Other: Add'l Rep. Persons-see Ex.99-1 | PPurchaseClass A Ordinary Shares (as defined in Exhibit 99.1 hereto) | +25.0K | $0.75 | +$18.8K | 0.0%73.5M after | |
| Apr 24, 2025 (view filing) | Apr 22 | 2 days | Control Empresarial de Capitales S.A. de C.V.10% Owner, Other: Add'l Rep. Persons-see Ex.99-1 | PPurchaseClass A Ordinary Shares (as defined in Exhibit 99.1 hereto) | +387.4K | $0.71 | +$275.0K | +0.5%73.8M after | |
| Jul 9, 2025 (view filing) | Jul 8 | 1 day | Weber Darin J.Chief Regulatory Officer | SSaleClass A Common Stock | −103.5K | $3.02 | −$312.5K | −100.0%0 after | 10b5-1 |
| Nov 14, 2025 (view filing) | Nov 12-13 | 2 days | Pereira Brian JGDirector | SSaleClass A Common Stock | −757.2K | $2.49 | −$1.88M | −100.0%0 after | 4 lots |
| Aug 20, 2026 (view filing)5:00 PM ET | Aug 18-20 | 2 days | Pereira Brian JGDirector | SSaleClass A Common Stock | −675.2K | $1.41 | −$952.2K | −100.0%0 after | 3 lots |
| Aug 20, 2026 (view filing)5:00 PM ET | Aug 18-20 | 2 days | Pereira Brian JGDirector | SSaleClass A Common Stock | −81.9K | $1.41 | −$115.5K | −100.0%0 after | 3 lots |