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Buy Day today: Neutral (56) Mixed market breadth · no major macro event
PROK

ProKidney Corp.

Healthcare · Biotechnology

1.60$ +0.0% vs. previous close Closing price · As of: Sep 25, 2026

Ownership

Ownership Structure

Who owns ProKidney Corp. (PROK)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 76.8% of the shares are freely tradable; institutional investors hold 27.0%.

Institutional ownership ?Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings. 27.0%
Insiders ?Share of the stock held by the executives, founders and major shareholders of the company itself. 47.3%
Float ?Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders. 76.8%
Short % of float ?Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices. 13.4%
Shares Outstanding ?Total number of shares issued. Price times share count gives market cap. 209Mio.

Largest Shareholders

Institutions

Institutions PROK
Name Stake (%) Shares Change (%) Date
Suvretta Capital Management, LLC 5.91 12,341,266 +0.0 03/31/2026
Morgan Stanley - Brokerage Accounts 4.29 8,955,967 +1.6 03/31/2026
Bleichroeder LP 0.96 2,000,000 +0.0 03/31/2026
Hennion & Walsh Asset Management Inc 0.88 1,847,749 +14.6 06/30/2026
Artia Global Partners LP 0.86 1,806,939 +0.0 06/30/2026
BlackRock Inc 0.66 1,387,116 -1.2 03/31/2026
Renaissance Technologies Corp 0.60 1,250,794 +39.6 03/31/2026
Geode Capital Management, LLC 0.59 1,230,409 +2.7 03/31/2026

Funds

Funds PROK
Name Stake (%) Shares Change (%) Date
NUMC B0-B 1.64 3,432,500 +0.0 08/31/2026
iShares Russell 2000 ETF 0.81 1,698,065 -0.6 08/31/2026

Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.

Insiders

Insider Transactions

Insider Transactions
Date Person Role Type Shares Price Value
Aug 20, 2026 Pereira Brian JG Director Sell 27,052 1.42 38,411
Aug 20, 2026 Pereira Brian JG Director Sell 222,948 1.42 316,564
Aug 19, 2026 Pereira Brian JG Director Sell 27,051 1.44 38,972
Aug 19, 2026 Pereira Brian JG Director Sell 222,949 1.44 321,203
Aug 18, 2026 Pereira Brian JG Director Sell 27,826 1.37 38,155
Aug 18, 2026 Pereira Brian JG Director Sell 229,338 1.37 314,468

Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →

Data as of: September 25, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)

Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.

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