ProKidney
Develops rilparencel for advanced chronic kidney disease and type 2 diabetes.
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Breakdown13F · Form 4
Institutions and insiders are filed separately and overlap, so together they can pass the whole company. No split is drawn from them.
Shares outstanding 148.17M · Float —
Float — provider float is below the insider stake.
The provider's float is smaller than the insider stake it should exclude, so it is not shown.
Institutions13F, as of Mar 31, 2026
72 holders · 42.66M shares · 17 new positions · 38 increased · 20 reduced · 9 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Suvretta Capital Management, LLC | 12.34M | 8.33% | 0 | May 15, 2026 |
| Morgan Stanley | 8.96M | 6.04% | +139.0K | May 15, 2026 |
| Millennium Management LLC | 2.27M | 1.53% | +437.0K | May 15, 2026 |
| Bleichroeder LP | 2.00M | 1.35% | 0 | May 14, 2026 |
| Artia Global Partners LP | 1.81M | 1.22% | −31.5K | May 15, 2026 |
| Hennion & Walsh Asset Management, Inc. | 1.61M | 1.09% | +107.8K | May 13, 2026 |
| BlackRock, Inc. | 1.39M | 0.94% | −17.1K | May 13, 2026 |
| Renaissance Technologies LLC | 1.25M | 0.84% | +355.1K | May 14, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Tolerantia, LLC | 36.50% | 106.90M | 13D | Jun 5, 2025 ↗ |
| Control Empresarial de Capitales S.A. de C.V.incl. Carlos Slim Helu, Johanna Monique Slim Domit +5 more | 36.00% | 73.84M | 13D | Apr 30, 2026 ↗ |
| Morgan Stanley | 6.00% | 8.52M | 13G | Feb 12, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Control Empresarial de Capitales S.A. de C.V. | 10 percent owner, other: Add'l Rep. Persons-see Ex.99-1 | 147.69M | 99.68% | Apr 30, 2026 |
| Pablo G. Legorreta | director, 10 percent owner: | 106.90M | 72.15% | Jun 5, 2025 |
| Todd C. Girolamo | officer: Chief Legal Officer | 327.7K | 0.22% | Jun 15, 2026 |
| Brian JG Pereira | director | 222.9K | 0.15% | Aug 20, 2026 |
4 ten-percent owners hold 236.22M shares by Form 4 — the 13D/G table above shows those stakes, the figure above counts officers and directors only · 11 people have not refiled in the last 18 months (13.58M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 20, 2026 | Brian JG Pereiradirector | Sale | 27,052 | $1.42 | 0 |
| Aug 19, 2026 | Brian JG Pereiradirector | Sale · 2 lots | 250,000 | $1.44 | 250,000 |
| Aug 18, 2026 | Brian JG Pereiradirector | Sale · 2 lots | 257,164 | $1.37 | 500,000 |
| Nov 13, 2025 | Brian JG Pereiradirector | Sale | 54,333 | $2.37 | 0 |
| Nov 12, 2025 | Brian JG Pereiradirector | Sale · 2 lots | 255,026 | $2.72 | 54,333 |
CongressHouse and Senate disclosures
Not reported.