Prokidney's three largest insider shareholders as of March 23, 2026 are Aaron Cowen (TenPercentOwner, 4.05Mn shares), Todd C Girolamo (Chief Legal Officer, 163.86K shares), Brian Jg Pereira (Director, 81.93K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Empresarial De Capitales S.A. De C.V. Control | 73,842,723 | 0 | 24 Apr, 2025 | |
| Aaron Cowen | 0 | 4,050,675 | 04 Apr, 2023 | |
| Todd C Girolamo | Chief Legal Officer | 163,856 | 0 | 02 Aug, 2024 |
| Brian Jg Pereira | 81,928 | 0 | 06 Feb, 2025 | |
| Uma Sinha | 30,000 | 0 | 13 Jul, 2022 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 01 Mar, 2026 | Darin J. Weber | Employee stock option (right to buy) | A | 400,000 | $0.00 | 400,000 | D | A |
| 01 Mar, 2026 | James Coulston | Employee stock option (right to buy) | A | 600,000 | $0.00 | 600,000 | D | A |
| 01 Mar, 2026 | Todd C Girolamo | Employee stock option (right to buy) | A | 600,000 | $0.00 | 600,000 | D | A |
| 01 Mar, 2026 | Bruce Culleton | Employee stock option (right to buy) | A | 3,000,000 | $0.00 | 3,000,000 | D | A |
| 12 Nov, 2025 | Brian Jg Pereira | Class A Common Stock | D | 227,431 | $2.72 | 447,803 | I | S |
| 12 Nov, 2025 | Brian Jg Pereira | Class A Common Stock | D | 27,595 | $2.72 | 54,333 | I | S |
| 13 Nov, 2025 | Brian Jg Pereira | Class A Common Stock | D | 447,803 | $2.37 | 0 | I | S |
| 13 Nov, 2025 | Brian Jg Pereira | Class A Common Stock | D | 54,333 | $2.37 | 0 | I | S |
| 08 Jul, 2025 | Darin J. Weber | Class A Common Stock | D | 103,480 | $3.02 | 0 | D | S |
| 29 May, 2025 | Uma Sinha | Director stock option (right to buy) | A | 125,862 | $0.00 | 125,862 | D | A |
| 29 May, 2025 | Brian Jg Pereira | Director stock option (right to buy) | A | 125,862 | $0.00 | 125,862 | D | A |
| 29 May, 2025 | Santos Jose Ignacio Jimenez | Director stock option (right to buy) | A | 125,862 | $0.00 | 125,862 | D | A |
| 29 May, 2025 | Jennifer A. Fox | Director stock option (right to buy) | A | 125,862 | $0.00 | 125,862 | D | A |
| 22 Apr, 2025 | Empresarial De Capitales S.A. De C.V. Control | Class A Ordinary Shares (as defined in Exhibit 99.1 hereto) | A | 387,393 | $0.71 | 73,842,723 | D | P |
| 17 Apr, 2025 | Empresarial De Capitales S.A. De C.V. Control | Class A Ordinary Shares (as defined in Exhibit 99.1 hereto) | A | 25,000 | $0.75 | 73,455,330 | D | P |
| 16 Apr, 2025 | Empresarial De Capitales S.A. De C.V. Control | Class A Ordinary Shares (as defined in Exhibit 99.1 hereto) | A | 100,000 | $0.75 | 73,430,330 | D | P |
| 14 Apr, 2025 | Empresarial De Capitales S.A. De C.V. Control | Class A Ordinary Shares (as defined in Exhibit 99.1 hereto) | A | 268,105 | $0.73 | 72,862,330 | D | P |
| 15 Apr, 2025 | Empresarial De Capitales S.A. De C.V. Control | Class A Ordinary Shares (as defined in Exhibit 99.1 hereto) | A | 468,000 | $0.70 | 73,330,330 | D | P |
| 10 Apr, 2025 | Empresarial De Capitales S.A. De C.V. Control | Class A Ordinary Shares (as defined in Exhibit 99.1 hereto) | A | 1,032,218 | $0.61 | 72,592,325 | D | P |
| 11 Apr, 2025 | Empresarial De Capitales S.A. De C.V. Control | Class A Ordinary Shares (as defined in Exhibit 99.1 hereto) | A | 1,900 | $0.61 | 72,594,225 | D | P |