PROKNasdaqBiological Products, (No Diagnostic Substances)Fiscal year ends December 31
PROKIDNEY CORP.
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 10, 2026
$1.40+0.06 (+4.89%)
Close on Oct 19, 2026
- Market cap
- –
- P/E (TTM)
- –
- Dividend yield
- –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
15.8%
48M of 302M shares
Institutional holders
70
22 new, 21 sold out
Net institutional buying
5M
In Q2 2026
Insider trades, 12 months
0 buys · 10 sales
Net sold $2.95M
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Carlos Slim Domit | 73,842,723 | 36.00% | 13D (active) amendment | Apr 28, 2026 |
| Aaron Cowen | 13,198,766 | 10.47% | 13G (passive) amendment | Aug 28, 2024 |
| Tolerantia, LLC | 106,901,339 | 36.50% | 13D (active) amendment | Jun 3, 2025 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of PROK | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| Suvretta Capital Management, LLC | 12,341,266 | 4.08% | $25.18M | – | 0.46% |
| Morgan Stanley | 9,854,178 | 3.26% | $20.10M | +898,211 | 0.00% |
| BlackRock, Inc. | 5,197,227 | 1.72% | $10.60M | +3,810,111 | 0.00% |
| Geode Capital Management, LLC | 2,390,147 | 0.79% | $4.88M | +1,159,738 | 0.00% |
| Bleichroeder LP | 2,000,000 | 0.66% | $4.08M | – | 0.73% |
| Hennion & Walsh Asset Management, Inc. | 1,847,749 | 0.61% | $3.77M | +236,056 | 0.11% |
| Artia Global Partners LP | 1,806,939 | 0.60% | $3.69M | – | 0.68% |
| Vanguard Capital Management LLC | 1,175,257 | 0.39% | $2.40M | +28,320 | 0.00% |
| Renaissance Technologies LLC | 1,099,400 | 0.36% | $2.24M | −151,394 | 0.00% |
| Millennium Management LLC | 1,054,705 | 0.35% | $2.15M | −1,216,872 | 0.00% |
| State Street Corp | 1,045,945 | 0.35% | $2.13M | +489,100 | 0.00% |
| Charles Schwab Investment Management Inc | 781,729 | 0.26% | $1.59M | +153,958 | 0.00% |
| UBS Group AG | 671,447 | 0.22% | $1.37M | +336,901 | 0.00% |
| Northern Trust Corp | 664,827 | 0.22% | $1.36M | +423,247 | 0.00% |
| MYDA Advisors LLC | 640,775 | 0.21% | $1.31M | +212,000 | 0.19% |
| Vanguard Fiduciary Trust Co | 632,149 | 0.21% | $1.29M | +93,778 | 0.00% |
| Bank Of America Corp /De/ | 545,158 | 0.18% | $1.11M | −208,254 | 0.00% |
| Vanguard Portfolio Management LLC | 517,082 | 0.17% | $1.05M | New | 0.00% |
| Voleon Capital Management LP | 473,307 | 0.16% | $965.55K | +370,609 | 0.02% |
| Amundi | 304,151 | 0.10% | $620.47K | +12,443 | 0.00% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 70 | 48M | 15.8% | 22 / 25 | 11 / 21 | 10M | 5M |
| Q1 2026 | 70 | 43M | 14.1% | 17 / 19 | 22 / 8 | 4M | 2M |
| Q4 2025 | 62 | 42M | 13.9% | 18 / 22 | 14 / 11 | 9M | 1M |
| Q3 2025 | 55 | 33M | 11.1% | 53 / 0 | 2 / 4 | 33M | 0M |
| Q2 2025 | 6 | 1M | 0.2% | 6 / 0 | 0 / 0 | 1M | 0M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of PROK | Value | % of fund | As of |
|---|---|---|---|---|---|
| iShares Russell 2000 ETF | 1,723,961 | 0.57% | $3.52M | 0.00% | Jun 30, 2026 |
| Vanguard Extended Market Index Fund | 1,175,257 | 0.39% | $2.40M | 0.00% | Jun 30, 2026 |
| Morgan Stanley Insight Fund | 1,119,402 | 0.37% | $2.28M | 0.19% | Jun 30, 2026 |
| Morgan Stanley Discovery Portfolio | 1,082,616 | 0.36% | $2.21M | 0.18% | Jun 30, 2026 |
| Fidelity Small Cap Index Fund | 822,120 | 0.27% | $1.27M | 0.00% | Jul 31, 2026 |
| Discovery Portfolio | 820,877 | 0.27% | $1.67M | 0.21% | Jun 30, 2026 |
| Fidelity Extended Market Index Fund | 534,209 | 0.18% | $977.60K | 0.00% | May 31, 2026 |
| Schwab U.S. Small-Cap ETF | 504,944 | 0.17% | $924.05K | 0.00% | May 31, 2026 |
| iShares Russell 2000 Growth ETF | 461,051 | 0.15% | $940.54K | 0.01% | Jun 30, 2026 |
| Inception Portfolio | 292,440 | 0.10% | $596.58K | 0.21% | Jun 30, 2026 |
| iShares Micro-Cap ETF | 253,645 | 0.08% | $517.44K | 0.03% | Jun 30, 2026 |
| EQ/Morgan Stanley Small Cap Growth Portfolio | 212,719 | 0.07% | $433.95K | 0.09% | Jun 30, 2026 |
| iShares Russell 2000 Value ETF | 207,932 | 0.07% | $424.18K | 0.00% | Jun 30, 2026 |
| Fidelity Total Market Index Fund | 192,034 | 0.06% | $351.42K | 0.00% | May 31, 2026 |
| Virtus Biotech Clinical Trials Etf | 189,520 | 0.06% | $291.86K | 0.63% | Jul 31, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Bruce Culleton | Chief Executive Officer, Director | – | – | Mar 3, 2026 |
| Kenneth Thomas Locke | Chief Technical Officer | – | – | Jul 6, 2026 |
| Todd C. Girolamo | Chief Legal Officer | 327,713 | 0.11% | Jun 15, 2026 |
| Darin J. Weber | Chief Regulatory Officer | 402,283 | 0.13% | Mar 3, 2026 |
| James Coulston | Chief Financial Officer | 716,850 | 0.24% | Mar 3, 2026 |
| Brian JG Pereira | Director | 222,948 | 0.07% | Aug 20, 2026 |
| Uma Sinha | Director | 30,000 | 0.01% | May 29, 2026 |
| Pablo G. Legorreta | Director, 10% owner | 110,725,335 | 36.62% | May 29, 2026 |
| William F. Doyle | Director | 1,514,326 | 0.50% | May 29, 2026 |
| Alan Lotvin | Director | 1,514,326 | 0.50% | May 29, 2026 |
| Jennifer A. Fox | Director | 0 | – | May 29, 2026 |
| Santos Jose Ignacio Jimenez | Director | 0 | – | May 29, 2026 |
| Empresarial de Capitales S.A. de C.V. Control | 10% owner | 73,842,723 | 24.43% | Apr 30, 2026 |
| Aaron Cowen | 10% owner | 857,500 | 0.28% | Jul 11, 2025 |
| Tolerantia, LLC | 10% owner | 110,725,335 | 36.62% | Jun 5, 2025 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Brian JG Pereira Director | Aug 20, 2026 | Sale | −222,948 | $1.42 | $316.59K | 0 |
| Brian JG Pereira Director | Aug 20, 2026 | Sale | −27,052 | $1.42 | $38.41K | 0 |
| Brian JG Pereira Director | Aug 19, 2026 | Sale | −222,949 | $1.44 | $321.05K | 222,948 |
| Brian JG Pereira Director | Aug 19, 2026 | Sale | −27,051 | $1.44 | $38.95K | 27,052 |
| Brian JG Pereira Director | Aug 18, 2026 | Sale | −229,338 | $1.37 | $314.19K | 445,897 |
| Brian JG Pereira Director | Aug 18, 2026 | Sale | −27,826 | $1.37 | $38.12K | 54,103 |
| Brian JG Pereira Director | Aug 4, 2026 | Conversion | +81,929 | – | – | 81,929 |
| Brian JG Pereira Director | Aug 4, 2026 | Conversion | +675,235 | – | – | 675,235 |
| Todd C. Girolamo Chief Legal Officer | Jun 12, 2026 | Conversion | +163,857 | – | – | 327,713 |
| Empresarial de Capitales S.A. de C.V. Control 10% owner | Apr 28, 2026 | Conversion | +63,118,645 | – | – | 73,842,723 |
| Brian JG Pereira Director | Nov 13, 2025 | Sale | −447,803 | $2.37 | $1.06M | 0 |
| Brian JG Pereira Director | Nov 13, 2025 | Sale | −54,333 | $2.37 | $128.77K | 0 |
| Brian JG Pereira Director | Nov 12, 2025 | Sale | −227,431 | $2.72 | $618.61K | 447,803 |
| Brian JG Pereira Director | Nov 12, 2025 | Sale | −27,595 | $2.72 | $75.06K | 54,333 |
| Darin J. Weber Chief Regulatory Officer | Jul 8, 2025 | Sale(10b5-1 plan) | −103,480 | $3.02 | $312.51K | 0 |
| Pablo G. Legorreta Director, 10% owner | Jun 3, 2025 | Conversion | +3,823,996 | – | – | 26,441,905 |
| Pablo G. Legorreta Director, 10% owner | Jun 3, 2025 | Other | −3,823,996 | – | – | 22,617,909 |
| Empresarial de Capitales S.A. de C.V. Control 10% owner | Apr 22, 2025 | Buy | +387,393 | $0.71 | $275.05K | 73,842,723 |
| Empresarial de Capitales S.A. de C.V. Control 10% owner | Apr 17, 2025 | Buy | +25,000 | $0.75 | $18.75K | 73,455,330 |
| Empresarial de Capitales S.A. de C.V. Control 10% owner | Apr 16, 2025 | Buy | +100,000 | $0.75 | $75.00K | 73,430,330 |
| Empresarial de Capitales S.A. de C.V. Control 10% owner | Apr 15, 2025 | Buy | +468,000 | $0.70 | $327.60K | 73,330,330 |
| Empresarial de Capitales S.A. de C.V. Control 10% owner | Apr 14, 2025 | Buy | +268,105 | $0.73 | $195.72K | 72,862,330 |
| Empresarial de Capitales S.A. de C.V. Control 10% owner | Apr 11, 2025 | Buy | +1,900 | $0.61 | $1.16K | 72,594,225 |
| Empresarial de Capitales S.A. de C.V. Control 10% owner | Apr 10, 2025 | Buy | +1,032,218 | $0.61 | $629.65K | 72,592,325 |
| Tolerantia, LLC 10% owner | Feb 4, 2025 | Other | −532,535 | – | – | 22,617,909 |
| Tolerantia, LLC 10% owner | Feb 4, 2025 | Conversion | +532,535 | – | – | 23,150,444 |
| Brian JG Pereira Director | Feb 4, 2025 | Conversion | +675,234 | – | – | 675,234 |
| Brian JG Pereira Director | Feb 4, 2025 | Conversion | +81,928 | – | – | 81,928 |
| Darin J. Weber Chief Regulatory Officer | Sep 19, 2024 | Sale(10b5-1 plan) | −16,412 | $2.50 | $41.03K | 103,480 |
| Todd C. Girolamo Chief Legal Officer | Jul 31, 2024 | Conversion | +81,928 | – | – | 163,856 |
| Darin J. Weber Chief Regulatory Officer | Jul 26, 2024 | Sale(10b5-1 plan) | −826 | $2.50 | $2.07K | 119,892 |
| Darin J. Weber Chief Regulatory Officer | Jun 18, 2024 | Sale(10b5-1 plan) | −17,238 | $2.82 | $48.61K | 120,718 |
| Pablo G. Legorreta Director, 10% owner | Jun 13, 2024 | Buy | +22,617,909 | $2.42 | $54.74M | 22,617,909 |
| Empresarial de Capitales S.A. de C.V. Control 10% owner | Jun 11, 2024 | Buy | +8,264,462 | $2.42 | $20.00M | 71,560,107 |
| Darin J. Weber Chief Regulatory Officer | May 20, 2024 | Sale(10b5-1 plan) | −17,238 | $4.08 | $70.33K | 137,956 |
| Darin J. Weber SVP of Regulatory Development | Apr 22, 2024 | Sale(10b5-1 plan) | −16,438 | $2.51 | $41.26K | 155,194 |
| Darin J. Weber SVP of Regulatory Development | Apr 18, 2024 | Sale(10b5-1 plan) | −800 | $2.54 | $2.03K | 171,632 |
| Darin J. Weber SVP of Regulatory Development | Apr 16, 2024 | Sale(10b5-1 plan) | −17,238 | $2.50 | $43.10K | 172,432 |
| Darin J. Weber SVP of Regulatory Development | Apr 12, 2024 | Sale(10b5-1 plan) | −84,103 | $1.73 | $145.50K | 189,670 |
| Darin J. Weber SVP of Regulatory Development | Apr 1, 2024 | Sale(10b5-1 plan) | −300 | $1.69 | $507 | 273,773 |
| Empresarial de Capitales S.A. de C.V. Control 10% owner | Mar 25, 2024 | Buy | +30,000 | $1.43 | $42.90K | 63,295,645 |
| Empresarial de Capitales S.A. de C.V. Control 10% owner | Mar 22, 2024 | Buy | +14,000 | $1.40 | $19.60K | 63,265,645 |
| Empresarial de Capitales S.A. de C.V. Control 10% owner | Mar 20, 2024 | Buy | +33,000 | $1.40 | $46.20K | 63,251,645 |
| Empresarial de Capitales S.A. de C.V. Control 10% owner | Mar 14, 2024 | Buy | +50,000 | $1.36 | $68.00K | 63,218,645 |
| Empresarial de Capitales S.A. de C.V. Control 10% owner | Mar 13, 2024 | Buy | +50,000 | $1.50 | $75.00K | 63,168,645 |
| Darin J. Weber SVP of Regulatory Development | Feb 5, 2024 | Conversion | +137,073 | – | – | 274,073 |
| Todd C. Girolamo Chief Legal Officer | Feb 5, 2024 | Conversion | +81,928 | – | – | 81,928 |
| Pablo G. Legorreta Director, 10% owner | Feb 5, 2024 | Conversion | +748,952 | – | – | 748,952 |
| Pablo G. Legorreta Director, 10% owner | Feb 5, 2024 | Other | −748,952 | – | – | 0 |
| SC Master Holdings, LLC – | Nov 19, 2023 | Sale | −2,073,000 | $1.31 | $2.72M | 0 |
| SC Master Holdings, LLC – | Nov 19, 2023 | Sale | −5,183,367 | $1.31 | $6.79M | 0 |
| Chamath Palihapitiya 10% owner | Nov 17, 2023 | Sale | −258,400 | $1.19 | $307.50K | 5,183,367 |
| Chamath Palihapitiya 10% owner | Nov 16, 2023 | Sale | −212,100 | $1.22 | $258.76K | 5,441,767 |
| Chamath Palihapitiya 10% owner | Nov 15, 2023 | Sale | −282,300 | $1.49 | $420.63K | 5,653,867 |
| Chamath Palihapitiya 10% owner | Nov 14, 2023 | Sale | −306,200 | $1.50 | $459.30K | 5,936,167 |
| Chamath Palihapitiya 10% owner | Nov 13, 2023 | Sale | −88,700 | $1.57 | $139.26K | 6,242,367 |
| Chamath Palihapitiya 10% owner | Nov 10, 2023 | Sale | −85,900 | $1.61 | $138.30K | 6,331,067 |
| Chamath Palihapitiya 10% owner | Nov 9, 2023 | Sale | −95,900 | $1.68 | $161.11K | 6,416,967 |
| SC Master Holdings, LLC 10% owner | Nov 8, 2023 | Sale | −59,000 | $1.66 | $97.94K | 6,512,867 |
| SC Master Holdings, LLC 10% owner | Nov 7, 2023 | Sale | −71,233 | $1.59 | $113.26K | 6,571,867 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Pereira Brian Director | Aug 18, 2026 | 81,929 | $114.00K | Aug 18, 2026 | Profits Interests |
| Pereira Brian Director | Aug 18, 2026 | 675,235 | $945.33K | Aug 18, 2026 | Purchase of Shares |
| Pereira Brian Director | Nov 12, 2025 | 81,928 | $221.21K | Nov 12, 2025 | Profits Interests |
| Pereira Brian Director | Nov 12, 2025 | 675,234 | $1.82M | Nov 12, 2025 | Purchase of Shares |
| J. Weber Darin Officer | Jul 8, 2025 | 103,480 | $62.76K | Jul 8, 2025 | Founders Shares |
| J. Weber Darin Officer | Sep 19, 2024 | 16,412 | $39.22K | Sep 19, 2024 | Founders Shares |
| J. Weber Darin Officer | May 20, 2024 | 68,952 | $279.60K | May 20, 2024 | Founders Shares |
| J. Weber Darin Officer | Apr 18, 2024 | 17,238 | $48.96K | Apr 18, 2024 | Founders Shares |
| J. Weber Darin Officer | Apr 16, 2024 | 17,238 | $36.03K | Apr 16, 2024 | Founders Shares |
| J. Weber Darin Officer | Apr 12, 2024 | 84,103 | $137.93K | Apr 12, 2024 | Founders Shares |
| J. Weber Darin Officer | Apr 1, 2024 | 300 | $492 | Apr 1, 2024 | Founders Shares |