Montauk Renewables, Inc. - MNTK

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q1 2026 · Compare: Q4 2025
13D/13G major owners: Ownership tab.
Methodology: Market value and % of portfolio use SEC reported VALUE ($000). For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received. Details.
Rows: 0
Investor History Status Shares held Market value ($000) % of portfolio Previous % Rank Change in shares % change in shares Source Date reported
VANGUARD GROUP INC History No change 3,528,926 5,893 0.0% 0.0% 1 0 0.0% Q4 2025 Jan 29, 2026
BlackRock, Inc. History Reduced 4,218,997 4,851 0.0% 0.0% 2 -105,289 -2.43% Q1 2026 May 13, 2026
VANGUARD CAPITAL MANAGEMENT LLC History New 2,688,714 3,092 0.0% 3 +2,688,714 New Q1 2026 May 15, 2026
GEODE CAPITAL MANAGEMENT, LLC History Added to 1,759,278 2,023 0.0% 0.0% 4 +34,345 1.99% Q1 2026 May 15, 2026
Baader Bank Aktiengesellschaft History No change 1,605,000 1,845 0.14% 0.18% 5 0 0.0% Q1 2026 May 08, 2026
STATE STREET CORP History Reduced 1,365,473 1,570 0.0% 0.0% 6 -20,487 -1.48% Q1 2026 May 15, 2026
BARCLAYS PLC History Added to 1,038,917 1,194 0.0% 0.0% 7 +929,541 849.86% Q1 2026 May 14, 2026
AMERICAN CENTURY COMPANIES INC History Reduced 954,468 1,097 0.0% 0.0% 8 -643 -0.07% Q1 2026 May 15, 2026
DIMENSIONAL FUND ADVISORS LP History Reduced 736,584 847 0.0% 0.0% 9 -95,950 -11.53% Q1 2026 May 07, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC History Reduced 520,611 598 0.0% 0.0% 10 -24,038 -4.41% Q1 2026 May 15, 2026
NORTHERN TRUST CORP History Added to 505,374 581 0.0% 0.0% 11 +39,639 8.51% Q1 2026 May 14, 2026
VANGUARD FIDUCIARY TRUST CO History New 432,268 497 0.0% 12 +432,268 New Q1 2026 May 08, 2026
Hosking Partners LLP History Added to 396,932 456 0.02% 0.02% 13 +682 0.17% Q1 2026 Apr 21, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC History New 388,919 447 0.0% 14 +388,919 New Q1 2026 May 08, 2026
RENAISSANCE TECHNOLOGIES LLC History Added to 354,600 407 0.0% 0.0% 15 +11,900 3.47% Q1 2026 May 14, 2026
GOLDMAN SACHS GROUP INC History Added to 331,189 380 0.0% 0.0% 16 +135,157 68.95% Q1 2026 May 15, 2026
FIRST TRUST ADVISORS LP History Reduced 311,950 358 0.0% 0.0% 17 -26,269 -7.77% Q1 2026 May 13, 2026
GSA CAPITAL PARTNERS LLP History Added to 289,894 333 0.02% 0.03% 18 +47,248 19.47% Q1 2026 May 08, 2026
MORGAN STANLEY History Reduced 261,398 300 0.0% 0.0% 19 -67,264 -20.47% Q1 2026 May 15, 2026
MILLENNIUM MANAGEMENT LLC History Added to 206,854 237 0.0% 0.0% 20 +181,204 706.45% Q1 2026 May 15, 2026
MARSHALL WACE, LLP History New 204,636 235 0.0% 21 +204,636 New Q1 2026 May 14, 2026
Bank of New York Mellon Corp History Reduced 195,907 225 0.0% 0.0% 22 -13,661 -6.52% Q1 2026 May 05, 2026
JTC Employer Solutions Trustee Ltd History No change 197,859 217 0.02% 0.02% 23 0 0.0% Q1 2026 May 19, 2026
JPMORGAN CHASE & CO History Reduced 162,252 193 0.0% 0.0% 24 -9,940 -5.77% Q1 2026 May 13, 2026
ALLIANCEBERNSTEIN L.P. History No change 97,520 162 0.0% 0.0% 25 0 0.0% Q1 2026 May 15, 2026
Nuveen, LLC History Added to 139,608 160 0.0% 0.0% 26 +858 0.62% Q1 2026 Apr 30, 2026
D. E. Shaw & Co., Inc. History Reduced 118,256 135 0.0% 0.0% 27 -74,092 -38.52% Q1 2026 May 15, 2026
Rathbones Group PLC History Added to 102,000 117 0.0% 0.0% 28 +10,000 10.87% Q1 2026 May 12, 2026
RHUMBLINE ADVISERS History Reduced 93,078 107 0.0% 0.0% 29 -3,630 -3.75% Q1 2026 May 12, 2026
STOREBRAND ASSET MANAGEMENT AS History Reduced 82,175 94 0.0% 0.0% 30 -17,232 -17.33% Q1 2026 May 05, 2026
BANK OF AMERICA CORP /DE/ History Added to 60,707 69 0.0% 0.0% 31 +1,558 2.63% Q1 2026 May 15, 2026
ACADIAN ASSET MANAGEMENT LLC History Added to 56,106 62 0.0% 0.0% 32 +44,174 370.21% Q1 2026 May 13, 2026
DEUTSCHE BANK AG\ History No change 47,007 54 0.0% 0.0% 33 0 0.0% Q1 2026 May 06, 2026
UBS Group AG History Reduced 41,867 48 0.0% 0.0% 34 -27,189 -39.37% Q1 2026 May 05, 2026
STRS OHIO History No change 40,000 46 0.0% 0.0% 35 0 0.0% Q1 2026 Apr 24, 2026
AQR CAPITAL MANAGEMENT LLC History Added to 38,351 44 0.0% 0.0% 36 +23,794 163.45% Q1 2026 May 15, 2026
Invesco Ltd. History Added to 37,339 42 0.0% 0.0% 37 +6,284 20.24% Q1 2026 May 12, 2026
Squarepoint Ops LLC History New 35,893 41 0.0% 38 +35,893 New Q1 2026 May 15, 2026
JANE STREET GROUP, LLC History Reduced 35,576 39 0.0% 0.0% 40 -95,111 -72.78% Q1 2026 May 12, 2026
PRICE T ROWE ASSOCIATES INC /MD/ History No change 33,876 39 0.0% 0.0% 39 0 0.0% Q1 2026 May 15, 2026
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. History Added to 32,892 37 0.0% 0.0% 42 +766 2.38% Q1 2026 May 15, 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP History No change 32,288 37 0.0% 0.0% 41 0 0.0% Q1 2026 May 14, 2026
Russell Investments Group, Ltd. History Reduced 31,293 35 0.0% 0.0% 43 -1,295 -3.97% Q1 2026 May 08, 2026
LOS ANGELES CAPITAL MANAGEMENT LLC History No change 29,205 33 0.0% 0.0% 44 0 0.0% Q1 2026 May 08, 2026
Quadrature Capital Ltd History New 26,928 30 0.0% 45 +26,928 New Q1 2026 May 15, 2026
WELLS FARGO & COMPANY/MN History Reduced 25,214 28 0.0% 0.0% 46 -49,835 -66.4% Q1 2026 May 11, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History Added to 24,495 28 0.0% 0.0% 47 +8,683 54.91% Q1 2026 May 15, 2026
TWO SIGMA ADVISERS, LP History No change 16,800 28 0.0% 0.0% 48 0 0.0% Q4 2025 Feb 17, 2026
Vanguard Global Advisers, LLC History New 23,853 27 0.0% 49 +23,853 New Q1 2026 May 08, 2026
Boyer Financial Services, Inc. History New 22,990 26 0.03% 50 +22,990 New Q1 2026 Apr 10, 2026
Engineers Gate Manager LP History Added to 18,628 21 0.0% 0.0% 52 +5,054 37.23% Q1 2026 May 15, 2026
MANUFACTURERS LIFE INSURANCE COMPANY, THE History Reduced 18,967 21 0.0% 0.0% 51 -1,615 -7.85% Q1 2026 May 15, 2026
INTECH INVESTMENT MANAGEMENT LLC History Reduced 17,748 20 0.0% 0.0% 53 -13,738 -43.63% Q1 2026 May 08, 2026
Tower Research Capital LLC (TRC) History Added to 17,233 19 0.0% 0.0% 55 +11,358 193.33% Q1 2026 May 15, 2026
Neuberger Berman Group LLC History Added to 16,744 19 0.0% 0.0% 54 +4,219 33.68% Q1 2026 May 14, 2026
TWO SIGMA SECURITIES, LLC History Reduced 16,469 18 0.0% 0.01% 57 -20,824 -55.84% Q1 2026 May 15, 2026
CITIGROUP INC History Added to 15,781 18 0.0% 0.0% 56 +8,518 117.28% Q1 2026 May 11, 2026
Police & Firemen's Retirement System of New Jersey History No change 16,326 18 0.0% 0.0% 58 0 0.0% Q1 2026 Apr 29, 2026
PRUDENTIAL FINANCIAL INC History New 14,810 17 0.0% 59 +14,810 New Q1 2026 May 13, 2026
XTX Topco Ltd History New 14,173 16 0.0% 61 +14,173 New Q1 2026 May 15, 2026
BNP PARIBAS FINANCIAL MARKETS History Added to 14,701 16 0.0% 0.0% 60 +294 2.04% Q1 2026 May 12, 2026
VOYA INVESTMENT MANAGEMENT LLC History No change 13,694 15 0.0% 0.0% 62 0 0.0% Q1 2026 May 12, 2026
Tidal Investments LLC History New 11,738 13 0.0% 63 +11,738 New Q1 2026 May 15, 2026
Point72 Asset Management, L.P. History Added to 10,871 12 0.0% 0.0% 64 +453 4.35% Q1 2026 May 15, 2026
JONES FINANCIAL COMPANIES LLLP History New 9,259 11 0.0% 66 +9,259 New Q1 2026 May 15, 2026
N.E.W. Advisory Services LLC History No change 10,000 11 0.0% 0.0% 65 0 0.0% Q1 2026 May 04, 2026
Zurcher Kantonalbank (Zurich Cantonalbank) History Reduced 7,852 9 0.0% 0.0% 67 -472 -5.67% Q1 2026 May 15, 2026
Ameritas Investment Partners, Inc. History No change 6,625 7 0.0% 0.0% 68 0 0.0% Q1 2026 May 13, 2026
Legal & General Group Plc History Reduced 5,771 6 0.0% 0.0% 69 -290 -4.78% Q1 2026 May 08, 2026
SIMPLEX TRADING, LLC History New 4,915 5 0.0% 70 +4,915 New Q1 2026 May 14, 2026
OSAIC HOLDINGS, INC. History New 4,000 4 0.0% 72 +4,000 New Q1 2026 May 15, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM History Reduced 3,641 4 0.0% 0.0% 71 -497 -12.01% Q1 2026 May 15, 2026
Ninety One SA (PTY) Ltd History New 3,110 3 0.0% 75 +3,110 New Q1 2026 Apr 24, 2026
ROYAL BANK OF CANADA History Added to 3,008 3 0.0% 0.0% 74 +1,006 50.25% Q1 2026 May 15, 2026
NEW YORK STATE COMMON RETIREMENT FUND History No change 3,365 3 0.0% 0.0% 73 0 0.0% Q1 2026 May 06, 2026
Sterling Capital Management LLC History Reduced 1,846 2 0.0% 0.0% 76 -1,299 -41.3% Q1 2026 Apr 22, 2026
CWM, LLC History Added to 2,274 2 0.0% 0.0% 77 +1,147 101.77% Q1 2026 May 14, 2026
TOWARZYSTWO FUNDUSZY INWESTYCYJNYCH PZU SA History No change 1,200 1 0.0% 0.0% 78 0 0.0% Q1 2026 May 15, 2026
CITADEL ADVISORS LLC History Closed out 0 0 0.0% -200,021 -100.0% Q1 2026 May 15, 2026
Andina Capital Management, LLC History Closed out 0 0 0.04% -41,572 -100.0% Q1 2026 Apr 17, 2026
R Squared Ltd History Closed out 0 0 0.02% -28,945 -100.0% Q1 2026 Apr 29, 2026
HRT FINANCIAL LP History Closed out 0 0 0.0% -26,353 -100.0% Q1 2026 May 14, 2026
TWO SIGMA INVESTMENTS, LP History Closed out 0 0 0.0% -23,215 -100.0% Q1 2026 May 15, 2026
ProShare Advisors LLC History Closed out 0 0 0.0% -12,291 -100.0% Q1 2026 Apr 24, 2026
FMR LLC History Reduced 810 0 0.0% -8,348 -91.16% Q1 2026 May 15, 2026
GAMMA Investing LLC History Reduced 339 0 0.0% -5,663 -94.35% Q1 2026 Apr 06, 2026
AMALGAMATED BANK History Closed out 0 0 0.0% -2,114 -100.0% Q1 2026 May 08, 2026
Optiver Holding B.V. History Reduced 636 0 0.0% -448 -41.33% Q1 2026 May 15, 2026
IFP Advisors, Inc History New 188 0 +188 New Q1 2026 Apr 13, 2026
PNC FINANCIAL SERVICES GROUP, INC. History Reduced 133 0 -155 -53.82% Q1 2026 May 08, 2026
SBI Securities Co., Ltd. History Added to 116 0 +102 728.57% Q1 2026 Apr 27, 2026
BESSEMER GROUP INC History Closed out 0 0 -90 -100.0% Q1 2026 May 06, 2026
ROTHSCHILD INVESTMENT LLC History Reduced 25 0 -61 -70.93% Q1 2026 May 07, 2026
EverSource Wealth Advisors, LLC History Reduced 69 0 -54 -43.9% Q1 2026 May 15, 2026
True Wealth Design, LLC History Added to 57 0 +45 375.0% Q1 2026 Apr 13, 2026
Covestor Ltd History Added to 64 0 +42 190.91% Q1 2026 May 05, 2026
Farther Finance Advisors, LLC History Added to 82 0 +22 36.67% Q1 2026 Apr 07, 2026
MAI Capital Management History New 21 0 +21 New Q1 2026 May 15, 2026
Sunbelt Securities, Inc. History New 13 0 +13 New Q1 2026 May 15, 2026
Allworth Financial LP History Reduced 5 0 -10 -66.67% Q1 2026 May 14, 2026
Arax Advisory Partners History New 5 0 +5 New Q1 2026 May 13, 2026
Caitong International Asset Management Co., Ltd History New 2 0 +2 New Q1 2026 May 11, 2026