PROK ProKidney Corp.
ProKidney Corp. (PROK) Institutional Ownership
What the institutions did with PROK last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| MONTANOVA CAPITAL, LLC | 12.3M | 25.3% |
| MORGAN STANLEY | 9.9M | 20.2% |
| BlackRock, Inc. | 5.2M | 10.7% |
| GEODE CAPITAL MANAGEMENT, LLC | 2.4M | 4.9% |
| Bleichroeder LP | 2.0M | 4.1% |
| Hennion & Walsh Asset Management, Inc. | 1.8M | 3.8% |
| Artia Global Partners LP | 1.8M | 3.7% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.2M | 2.4% |
| RENAISSANCE TECHNOLOGIES LLC | 1.1M | 2.3% |
| MILLENNIUM MANAGEMENT LLC | 1.1M | 2.2% |
| STATE STREET CORP | 1.0M | 2.1% |
| Brown University | 1.0M | 2.1% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 781.7K | 1.6% |
| UBS Group AG | 671.4K | 1.4% |
| NORTHERN TRUST CORP | 664.8K | 1.4% |
| MYDA Advisors LLC | 640.8K | 1.3% |
| VANGUARD FIDUCIARY TRUST CO | 632.1K | 1.3% |
| BANK OF AMERICA CORP /DE/ | 545.2K | 1.1% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 517.1K | 1.1% |
| Voleon Capital Management LP | 473.3K | 1.0% |
| Amundi | 304.2K | 0.6% |
| GSA CAPITAL PARTNERS LLP | 301.6K | 0.6% |
| TWO SIGMA INVESTMENTS, LP | 273.3K | 0.6% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 252.9K | 0.5% |
| GOLDMAN SACHS GROUP INC | 203.0K | 0.4% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| BlackRock, Inc. | Increased | 1.4M | 5.2M | +3.8M |
| MILLENNIUM MANAGEMENT LLC | Reduced | 2.3M | 1.1M | -1.2M |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.2M | 2.4M | +1.2M |
| MARSHALL WACE, LLP | Sold Out | 1.0M | 0 | -1.0M |
| MORGAN STANLEY | Increased | 9.0M | 9.9M | +898.2K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New | 0 | 517.1K | +517.1K |
| Woodline Partners LP | Sold Out | 500.0K | 0 | -500.0K |
| STATE STREET CORP | Increased | 556.8K | 1.0M | +489.1K |
| NORTHERN TRUST CORP | Increased | 241.6K | 664.8K | +423.2K |
| Voleon Capital Management LP | Increased | 102.7K | 473.3K | +370.6K |
| UBS Group AG | Increased | 334.5K | 671.4K | +336.9K |
| ExodusPoint Capital Management, LP | Sold Out | 254.4K | 0 | -254.4K |
| Hennion & Walsh Asset Management, Inc. | Increased | 1.6M | 1.8M | +236.1K |
| JANE STREET GROUP, LLC | Reduced | 264.3K | 39.9K | -224.3K |
| GOLDMAN SACHS GROUP INC | Reduced | 421.9K | 203.0K | -218.9K |
| MYDA Advisors LLC | Increased | 428.8K | 640.8K | +212.0K |
| BANK OF AMERICA CORP /DE/ | Reduced | 753.4K | 545.2K | -208.3K |
| Bank of New York Mellon Corp | Increased | 11.2K | 176.7K | +165.5K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Increased | 627.8K | 781.7K | +154.0K |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 1.3M | 1.1M | -151.4K |
| BARCLAYS PLC | Reduced | 146.3K | 16.1K | -130.2K |
| HRT FINANCIAL LP | Sold Out | 119.0K | 0 | -119.0K |
| Nuveen, LLC | New | 0 | 101.5K | +101.5K |
| Squarepoint Ops LLC | Reduced | 211.1K | 111.8K | -99.3K |
| GSA CAPITAL PARTNERS LLP | Increased | 203.2K | 301.6K | +98.4K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.