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Public ownership evidence

Montauk Renewables, Inc. Common Stock (MNTK) Ownership Disclosures

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

As of 2026-11-07T14:03:26.246Z

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Recent Form 4 activity

No matching purchases, sales or awards were returned in this 90-day public filing window.

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

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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CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25943$1,471None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-251,471$943,000None
JPL Wealth Management, LLC2026-06-302026-08-159$15None
XTX Topco Ltd2026-06-302026-08-1510,105$15,764None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15539,334$841,361None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15539,334$841,361None
Squarepoint Ops LLC2026-06-302026-08-1512,143$18,943None
Engineers Gate Manager LP2026-06-302026-08-1516,567$25,845None
Legal & General Group Plc2026-06-302026-08-155,771$9,003None
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-1543,455$67,790None
JONES FINANCIAL COMPANIES LLLP2026-06-302026-08-1511,000$16,610None
Cerity Partners LLC2026-06-302026-08-158,090$12,620None
Cerity Partners LLC2026-06-302026-08-152,352$3,670None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-151,174$1,831None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-15477$744None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-15233,801$364,730None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-152,465$3,845None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-1512$19None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-154$6None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-15219$342None
ROYAL BANK OF CANADA2026-06-302026-08-1512,196$19,000None
ROYAL BANK OF CANADA2026-06-302026-08-152,022$3,000None
ALLIANCEBERNSTEIN L.P.2026-06-302026-08-15142,138$163,459None
D. E. Shaw & Co., Inc.2026-06-302026-08-15101,497$158,335None
CITADEL ADVISORS LLC2026-06-302026-08-1558,826$91,769None
Invesco Ltd.2026-06-302026-08-15437$682None
Invesco Ltd.2026-06-302026-08-158,221$12,825None
Invesco Ltd.2026-06-302026-08-1527,221$42,465None
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.2026-06-302026-08-1531,543$49,207None
GOLDMAN SACHS GROUP INC2026-06-302026-08-1577,872$121,480None
GOLDMAN SACHS GROUP INC2026-06-302026-08-15287,224$448,069None
GOLDMAN SACHS GROUP INC2026-06-302026-08-1512,181$19,002None
BARCLAYS PLC2026-06-302026-08-15943,438$1,471,763None
BARCLAYS PLC2026-06-302026-08-15711$1,109None
BARCLAYS PLC2026-06-302026-08-159,361$14,603None
PRICE T ROWE ASSOCIATES INC /MD/2026-06-302026-08-1533,876$53,000None
WELLS FARGO & COMPANY/MN2026-06-302026-08-1558,510$91,276None
BANK OF AMERICA CORP /DE/2026-06-302026-08-1545,075$70,317None
VANGUARD PORTFOLIO MANAGEMENT LLC2026-06-302026-08-14469,053$731,723None
VANGUARD CAPITAL MANAGEMENT LLC2026-06-302026-08-142,706,900$4,222,764None
Vanguard Global Advisers, LLC2026-06-302026-08-1423,853$37,211None
UBS Group AG2026-06-302026-08-1417,378$27,110None
UBS Group AG2026-06-302026-08-1451,252$79,953None
Mariner, LLC2026-06-302026-08-1413,585$21,193None
MARSHALL WACE, LLP2026-06-302026-08-1466,803$104,213None
MARSHALL WACE, LLP2026-06-302026-08-1413,723$21,408None
Centiva Capital, LP2026-06-302026-08-1414,391$22,450None
BNP PARIBAS FINANCIAL MARKETS2026-06-302026-08-1410,464$16,324None
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP2026-06-302026-08-1432,288$50,369None
ACADIAN ASSET MANAGEMENT LLC2026-06-302026-08-1481,760$126,000None

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

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗JPL Wealth Management, LLC ↗XTX Topco Ltd ↗CHARLES SCHWAB INVESTMENT MANAGEMENT INC ↗Sixth Street Partners Management Company, L.P. ↗Squarepoint Ops LLC ↗Engineers Gate Manager LP ↗Legal & General Group Plc ↗MILLENNIUM MANAGEMENT LLC ↗

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.

Institutional source directory ↗Congressional source directory ↗

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.