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Public ownership evidence

ProKidney Corp. Class A Ordinary Shares (PROK) Ownership Disclosures

Read PROK insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-14T23:32:50.005Z

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2026-08-212026-08-20Pereira Brian JGS27,052Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-08-20 and its public availability date is 2026-08-21. Subtracting those calendar dates gives 1 day of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

Recent Form 4 activity

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2026-08-212026-08-20Pereira Brian JGS27,052Not reported
2026-08-212026-08-20Pereira Brian JGS222,948Not reported
2026-08-212026-08-19Pereira Brian JGS27,051Not reported
2026-08-212026-08-19Pereira Brian JGS222,949Not reported
2026-08-212026-08-18Pereira Brian JGS27,826Not reported
2026-08-212026-08-18Pereira Brian JGS229,338Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

Inspect all 50 displayed rows: Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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Susquehanna Portfolio Strategies, LLC2026-06-302026-08-1597,378$198,651None
Basecamp Wealth Advisors LLC2026-06-302026-08-15586$1,195None
Artia Global Partners LP2026-06-302026-08-151,806,939$3,686,156None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15781,729$1,594,727None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15781,729$1,594,727None
OSAIC HOLDINGS, INC.2026-06-302026-08-15950$1,938None
Squarepoint Ops LLC2026-06-302026-08-15111,763$227,997None
JANE STREET GROUP, LLC2026-06-302026-08-1518$37None
JANE STREET GROUP, LLC2026-06-302026-08-1539,923$81,443None
JANE STREET GROUP, LLC2026-06-302026-08-1536,400$74,256Put
JANE STREET GROUP, LLC2026-06-302026-08-1560,200$122,808Call
Legal & General Group Plc2026-06-302026-08-157,410$15,116None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1562,500$127,500Call
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-15252,906$515,928None
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-151,054,705$2,151,598None
JONES FINANCIAL COMPANIES LLLP2026-06-302026-08-15100$183None
MONTANOVA CAPITAL, LLC2026-06-302026-08-1512,341,266$25,176,183None
ROYAL BANK OF CANADA2026-06-302026-08-152,405$5,000None
ALLIANCEBERNSTEIN L.P.2026-06-302026-08-1526,760$47,900None
CANADA PENSION PLAN INVESTMENT BOARD2026-06-302026-08-1528,200$57,528None
CITADEL ADVISORS LLC2026-06-302026-08-1517,600$35,904Put
CITADEL ADVISORS LLC2026-06-302026-08-1597,900$199,716Call
Voleon Capital Management LP2026-06-302026-08-15473,307$965,546None
Invesco Ltd.2026-06-302026-08-15149$304None
Invesco Ltd.2026-06-302026-08-1510,396$21,208None
Invesco Ltd.2026-06-302026-08-1530,174$61,555None
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.2026-06-302026-08-1534,842$71,078None
TWO SIGMA INVESTMENTS, LP2026-06-302026-08-15273,259$557,448None
GOLDMAN SACHS GROUP INC2026-06-302026-08-1526,236$53,521None
GOLDMAN SACHS GROUP INC2026-06-302026-08-15176,770$360,611None
BARCLAYS PLC2026-06-302026-08-155,025$10,251None
BARCLAYS PLC2026-06-302026-08-1511,096$22,636None
PRICE T ROWE ASSOCIATES INC /MD/2026-06-302026-08-1562,039$127,000None
WELLS FARGO & COMPANY/MN2026-06-302026-08-1567,262$137,214None
BANK OF AMERICA CORP /DE/2026-06-302026-08-1543,572$88,887None
BANK OF AMERICA CORP /DE/2026-06-302026-08-15457,500$933,300None
BANK OF AMERICA CORP /DE/2026-06-302026-08-1544,086$89,935None
VANGUARD PORTFOLIO MANAGEMENT LLC2026-06-302026-08-14517,082$1,054,847None
VANGUARD CAPITAL MANAGEMENT LLC2026-06-302026-08-141,175,257$2,397,524None
Vanguard Global Advisers, LLC2026-06-302026-08-1434,074$69,511None
UBS Group AG2026-06-302026-08-1453,600$109,344None
UBS Group AG2026-06-302026-08-14591,856$1,207,386None
UBS Group AG2026-06-302026-08-1425,991$53,022None
Bleichroeder LP2026-06-302026-08-142,000,000$4,080,000None
LETKO, BROSSEAU & ASSOCIATES INC2026-06-302026-08-1415,900$32,436None
MYDA Advisors LLC2026-06-302026-08-14640,775$1,307,181None
BNP PARIBAS FINANCIAL MARKETS2026-06-302026-08-1412,301$25,094None
Ameritas Investment Partners, Inc.2026-06-302026-08-146,867$14,009None
RENAISSANCE TECHNOLOGIES LLC2026-06-302026-08-141,099,400$2,242,776None
VANGUARD FIDUCIARY TRUST CO2026-06-302026-08-14632,149$1,289,584None

90-day public filing window, up to 50 source positions.

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.