ProkidneyPROK
13F holders, Q3 2025 (September 30)At the end of Q3 2025, 55 institutions reported holding Prokidney Corp. (PROK) in their 13F filings, up 49 from Q2 2025. 19 opened new positions and 4 sold out. The largest holders were Montanova Capital, LLC ($29.9M), Morgan Stanley ($16.3M) and Bleichroeder LP ($4.8M). 3 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Prokidney Corp.
- CUSIP
- 74291D104
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 19 | $8.5M |
| Exits | 4 | $37K |
All 13F filers, Q2 2025 → Q3 2025: 4,890,244 shares bought and 4,568,471 shares sold, net +321,773 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 55 holders
| Montanova Capital, LLC | 0.91% | No change | 12,341,266 | $29.9M |
| Morgan Stanley | 0.00% | Add +12.7% | 6,747,022 | $16.3M |
| Bleichroeder LP | 0.95% | No change | 2,000,000 | $4.8M |
| Millennium Management | 0.00% | New | 1,956,378 | $4.7M |
| Vanguard Group Inc. | 0.00% | Reduce -0.2% | 1,564,116 | $3.8M |
| BlackRock, Inc. | 0.00% | Reduce -27.6% | 1,277,203 | $3.1M |
| Geode Capital Management, LLC | 0.00% | Add +8.4% | 1,096,782 | $2.7M |
| Hennion & Walsh Asset Management, Inc. | 0.08% | Reduce -1.8% | 919,903 | $2.2M |
| Bank of America Corp. | 0.00% | Reduce -21.9% | 660,864 | $1.6M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +16.7% | 653,091 | $1.6M |
| UBS Group AG | 0.00% | Add +7.0% | 508,353 | $1.2M |
| State Street Corp. | 0.00% | Add +34.3% | 474,957 | $1.1M |
| MYDA Advisors LLC | 0.33% | New | 450,000 | $1.1M |
| Citadel Advisors | 0.00% | New | 344,789 | $834K |
| Squarepoint Ops LLC | 0.00% | New | 344,576 | $834K |
| Susquehanna International Group, LLP | 0.00% | Add +110.2% | 255,004 | $617K |
| HRT Financial LP | 0.00% | Reduce -1.9% | 211,326 | $511K |
| Northern Trust Corp. | 0.00% | Reduce -24.4% | 190,052 | $460K |
| Gsa Capital Partners LLP | 0.03% | Reduce -67.1% | 168,031 | $407K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -71.7% | 164,617 | $398K |
| Royal Bank of Canada | 0.00% | Add +23.3% | 147,478 | $356K |
| Susquehanna Portfolio Strategies, LLC | 0.01% | New | 143,462 | $347K |
| Renaissance Technologies | 0.00% | Reduce -67.9% | 132,000 | $319K |
| ExodusPoint Capital Management, LP | 0.00% | Add +799.7% | 104,929 | $254K |
| Two Sigma Investments, LP | 0.00% | Add +40.4% | 99,282 | $240K |
| Virtu Financial LLC | 0.01% | New | 84,002 | $203K |
| Marshall Wace, LLP | 0.00% | Reduce -82.5% | 81,206 | $197K |
| Simplex Trading, LLC | 0.00% | New | 77,818 | $188K |
| Jane Street Group, LLC | 0.00% | Reduce -88.3% | 68,993 | $167K |
| Jefferies Financial Group Inc. | 0.00% | New | 65,300 | $158K |
| Virtus Family Office LLC | 0.06% | No change | 27,500 | $67K |
| Letko, Brosseau & Associates Inc. | 0.00% | New | 15,900 | $38K |
| FMR LLC | 0.00% | Reduce -81.8% | 11,901 | $29K |
| Zullo Investment Group, Inc. | 0.01% | New | 11,620 | $28K |
| Victory Capital Management Inc. | 0.00% | Add +5.2% | 11,434 | $28K |
| Bank of New York Mellon Corp | 0.00% | Add +6.1% | 11,192 | $27K |
| Engineers Gate Manager LP | 0.00% | New | 10,452 | $25K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -92.4% | 4,191 | $10K |
| Jones Financial Companies LLLP | 0.00% | Add +3230.0% | 3,330 | $8K |
| Wells Fargo & Company | 0.00% | Add +239.8% | 3,000 | $7K |
| Citigroup Inc. | 0.00% | Reduce -87.6% | 2,294 | $6K |
| BNP Paribas Financial Markets | 0.00% | Reduce -87.5% | 1,794 | $4K |
| Groupe la Francaise | 0.00% | New | 1,500 | $3K |
| Osaic Holdings, Inc. | 0.00% | New | 950 | $2K |
| Cwm, LLC | 0.00% | New | 627 | $2K |
| JPMorgan Chase & Co. | 0.00% | Reduce -100.0% | 756 | $2K |
| Caitlin John, LLC | 0.00% | New | 350 | $847 |
| Arax Advisory Partners | 0.00% | New | 248 | $600 |
| Advisory Services Network, LLC | 0.00% | New | 184 | $445 |
| US Bancorp \de | 0.00% | Reduce -50.0% | 100 | $242 |
| Signaturefd, LLC | 0.00% | New | 75 | $182 |
| EverSource Wealth Advisors, LLC | 0.00% | Reduce -96.3% | 38 | $92 |
| Rockefeller Capital Management L.P. | 0.00% | New | 12 | $29 |
| IFP Advisors, Inc | 0.00% | No change | 9 | $22 |
| Barclays PLC | 0.00% | No change | 1 | $2 |
"% of holder's portfolio" is PROK's weight in each manager's 13F, not the share of Prokidney Corp. the manager owns.