Skip to content
Disclosery

MNTK MONTAUK RENEWABLES INC

Follow

COMMON STOCK (common), issuer CIK 1826600

88 managers (91 13F filers) reported a position in MNTK shares at 2026-06-30, 21,381,693 shares in all. 13 filers opened a position and 14 filers sold out during the quarter.

Managers
88
13F filers
91
New
13
Added
38
Reduced
26
Sold out
14
Shares held by filers
21,381,693

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BlackRock, Inc.in group BlackRock, Inc.4,709,893$7.35M<0.01%+490,89613F-HRTimelineGroup
VANGUARD GROUP INCgroup of 4 filers holding3,638,583$5.68M+104,829Timeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,879,292$2.93M<0.01%+120,01413F-HRTimelineGroup
Baader Bank Aktiengesellschaft1,605,000$2.5M0.2%013F-HRTimeline
STATE STREET CORPin group STATE STREET CORP1,369,693$2.14M<0.01%+4,22013F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC953,510$1.49M<0.01%-85,40713F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC950,442$1.48M<0.01%-4,02613F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co539,334$841K<0.01%+18,72313F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP536,057$836K<0.01%+30,68313F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP448,818$700K<0.01%-287,76613F-HRTimelineGroup
Hosking Partners LLP390,517$609K0.02%-6,41513F-HRTimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP381,889$596K<0.01%+69,93913F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC377,277$589K<0.01%+46,08813F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC364,800$569K<0.01%+10,20013F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO270,982$423K<0.01%+108,73013F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC238,152$372K<0.01%+199,80113F-HRTimelineGroup
GSA CAPITAL PARTNERS LLP201,055$314K0.02%-88,83913F-HRTimeline
JTC Employer Solutions Trustee Ltd197,859$311K0.02%013F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp195,907$306K<0.01%013F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY167,182$261K<0.01%-94,21613F-HRTimelineGroup
Nuveen, LLCin group TIAA162,044$253K<0.01%+22,43613F-HRTimelineGroup
Caprock Group, LLC119,801$187K<0.01%new13F-HRTimeline
J. Derek Lewis & Associates Inc.106,500$166K0.03%+21,50013F-HRTimeline
ALLIANCEBERNSTEIN L.P.142,138$163K<0.01%+44,61813F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.101,497$158K<0.01%-16,75913F-HRTimelineGroup
RHUMBLINE ADVISERS94,756$148K<0.01%+1,67813F-HRTimeline
Rathbones Group PLC92,000$144K<0.01%-10,00013F-HRTimeline
STOREBRAND ASSET MANAGEMENT AS88,075$137K<0.01%+5,90013F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC81,760$126K<0.01%+25,65413F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP80,526$126K<0.01%-124,11013F-HRTimelineGroup
UBS Group AGin group UBS Group AG68,630$107K<0.01%+26,76313F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC58,826$91.8K<0.01%new13F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN58,510$91.3K<0.01%+33,29613F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…56,498$88.1K<0.01%+25,20513F-HRTimelineGroup
STRS OHIO48,800$76.1K<0.01%+8,80013F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\48,632$75.9K<0.01%+1,62513F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/45,075$70.3K<0.01%-15,63213F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC43,455$67.8K<0.01%-163,39913F-HRTimelineGroup
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC40,010$62.4K<0.01%+25,20013F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.35,879$56K<0.01%-1,46013F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/33,876$53K<0.01%013F-HRTimeline
IEQ CAPITAL, LLC33,113$51.7K<0.01%new13F-HRTimeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …32,288$50.4K<0.01%013F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC31,759$49.5K<0.01%+15,97813F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…31,543$49.2K<0.01%-1,34913F-HRTimelineGroup
Vontobel Holding Ltd.in group Vontobel Holding Ltd.17,860$27.9K<0.01%new13F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC17,643$27.5K<0.01%-10513F-HRTimeline
Engineers Gate Manager LP16,567$25.8K<0.01%-2,06113F-HRTimeline
Police & Firemen's Retirement System of…16,326$25.5K<0.01%013F-HRTimeline
Centiva Capital, LP14,391$22.4K<0.01%new13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA14,219$22K<0.01%+11,21113F-HRTimelineGroup
Mariner, LLCin group Mariner, LLC13,585$21.2K<0.01%new13F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…13,213$20.6K<0.01%-4,02013F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC12,143$18.9K<0.01%-23,75013F-HRTimelineGroup
WEALTH ENHANCEMENT ADVISORY SERVICES, L…10,332$16.6K<0.01%new13F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP11,000$16.6K<0.01%+1,74113F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS10,464$16.3K<0.01%-4,23713F-HRTimelineGroup
Cerity Partners LLCin group Cerity Partners LLC10,442$16.3K<0.01%new13F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd10,105$15.8K<0.01%-4,06813F-HRTimelineGroup
N.E.W. Advisory Services LLC10,000$15.6K<0.01%013F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…6,625$10.3K<0.01%013F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc5,771$9K<0.01%013F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND3,365$5.25K<0.01%013F-HRTimeline
Ninety One SA (Pty) Ltd3,110$4.85K<0.01%013F-HRTimeline
Arax Advisory Partners2,551$3.98K<0.01%+2,54613F-HRTimeline
FMR LLCin group FMR LLC1,339$2.09K<0.01%+52913F-HRTimelineGroup
TOWARZYSTWO FUNDUSZY INWESTYCYJNYCH PZU…1,200$1.87K<0.01%013F-HRTimeline
Sterling Capital Management LLC1,045$1.63K<0.01%-80113F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…943$1.47K<0.01%-2,69813F-HR/ATimeline
SIMPLEX TRADING, LLC864$1.35K<0.01%-4,05113F-HRTimeline
Integrated Wealth Concepts LLC729$1.14K<0.01%new13F-HRTimeline
NISA INVESTMENT ADVISORS, LLC700$1.09K<0.01%new13F-HRTimeline
Allworth Financial LP678$1.06K<0.01%+67313F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…558$871<0.01%+48913F-HRTimelineGroup
Essential Partners LLC388$605<0.01%+20113F-HRTimeline
GAMMA Investing LLC263$410<0.01%-7613F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…246$384<0.01%-7,60613F-HRTimeline
IFP Advisors, Inc191$298<0.01%+313F-HRTimeline
True Wealth Design, LLC152$238<0.01%+9513F-HRTimeline
Farther Finance Advisors, LLC152$237<0.01%+7013F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…136$212<0.01%+313F-HRTimelineGroup
ROTHSCHILD INVESTMENT LLC109$170<0.01%+8413F-HRTimeline
SJS Investment Consulting Inc.16$25<0.01%new13F-HRTimeline
SBI Securities Co., Ltd.15$23<0.01%-10113F-HRTimeline
Clearstead Advisors, LLC9$15<0.01%new13F-HRTimeline
JPL Wealth Management, LLC9$15<0.01%new13F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.4$6<0.01%-63213F-HRTimelineGroup
Caitong International Asset Management …2$3<0.01%013F-HRTimeline