Montauk Renewables, Inc. - MNTK

Detailed investor-level table based on 13F positions.
Early Q1 2026 data: only 2 institutional holders reported so far. The full shareholder list will grow as more funds file with the SEC.

Shareholders (13F)

Quarter: Q4 2025 · Compare: Q3 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
BlackRock, Inc. History Added to 4,324,286 7,221 0.0% 0.0% 1 +57,521 1.35% Q4 2025 Feb 12, 2026
VANGUARD GROUP INC History Reduced 3,528,926 5,893 0.0% 0.0% 2 -422,569 -10.69% Q4 2025 Jan 29, 2026
GEODE CAPITAL MANAGEMENT, LLC History Added to 1,724,933 2,881 0.0% 0.0% 3 +37,315 2.21% Q4 2025 Feb 09, 2026
Baader Bank Aktiengesellschaft History No change 1,605,000 2,680 0.18% 0.21% 4 0 0.0% Q4 2025 Feb 05, 2026
STATE STREET CORP History Reduced 1,385,960 2,314 0.0% 0.0% 5 -7,343 -0.53% Q4 2025 Feb 13, 2026
AMERICAN CENTURY COMPANIES INC History No change 955,111 1,595 0.0% 0.0% 6 0 0.0% Q4 2025 Feb 13, 2026
DIMENSIONAL FUND ADVISORS LP History Reduced 832,534 1,390 0.0% 0.0% 7 -143,504 -14.7% Q4 2025 Feb 12, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC History Reduced 544,649 909 0.0% 0.0% 8 -360 -0.07% Q4 2025 Feb 13, 2026
NORTHERN TRUST CORP History Reduced 465,735 777 0.0% 0.0% 9 -61,499 -11.66% Q4 2025 Feb 17, 2026
Hosking Partners LLP History Added to 396,250 661 0.02% 0.03% 10 +302 0.08% Q4 2025 Feb 04, 2026
RENAISSANCE TECHNOLOGIES LLC History Added to 342,700 572 0.0% 0.0% 11 +6,300 1.87% Q4 2025 Feb 12, 2026
FIRST TRUST ADVISORS LP History Added to 338,219 564 0.0% 0.0% 12 +659 0.2% Q4 2025 Feb 13, 2026
MORGAN STANLEY History Added to 328,662 548 0.0% 0.0% 13 +91,581 38.63% Q4 2025 Feb 13, 2026
GSA CAPITAL PARTNERS LLP History Added to 242,646 405 0.03% 0.04% 14 +30,142 14.18% Q4 2025 Feb 06, 2026
JTC Employer Solutions Trustee Ltd History No change 197,859 363 0.02% 0.03% 15 0 0.0% Q4 2025 Feb 10, 2026
Bank of New York Mellon Corp History Reduced 209,568 349 0.0% 0.0% 16 -56,405 -21.21% Q4 2025 Feb 10, 2026
CITADEL ADVISORS LLC History Reduced 200,021 334 0.0% 0.0% 17 -4,686 -2.29% Q4 2025 Feb 17, 2026
GOLDMAN SACHS GROUP INC History Added to 196,032 327 0.0% 0.0% 18 +30,273 18.26% Q4 2025 Mar 25, 2026
D. E. Shaw & Co., Inc. History Reduced 192,348 321 0.0% 0.0% 19 -30,929 -13.85% Q4 2025 Feb 17, 2026
JPMORGAN CHASE & CO History Reduced 172,192 287 0.0% 0.0% 20 -5,663 -3.18% Q4 2025 Feb 11, 2026
Nuveen, LLC History No change 138,750 231 0.0% 0.0% 21 0 0.0% Q4 2025 Feb 12, 2026
JANE STREET GROUP, LLC History Added to 130,687 228 0.0% 0.0% 22 +32,364 32.92% Q4 2025 Feb 12, 2026
BARCLAYS PLC History Reduced 109,376 182 0.0% 0.0% 23 -138,280 -55.84% Q4 2025 Feb 13, 2026
ALLIANCEBERNSTEIN L.P. History No change 97,520 162 0.0% 0.0% 24 0 0.0% Q4 2025 Feb 17, 2026
RHUMBLINE ADVISERS History Reduced 96,708 161 0.0% 0.0% 25 -29,004 -23.07% Q4 2025 Feb 13, 2026
Rathbones Group PLC History No change 92,000 153 0.0% 0.0% 26 0 0.0% Q4 2025 Feb 06, 2026
WELLS FARGO & COMPANY/MN History Added to 75,049 125 0.0% 0.0% 27 +25,645 51.91% Q4 2025 Feb 13, 2026
UBS Group AG History Reduced 69,056 115 0.0% 0.0% 28 -3,471 -4.79% Q4 2025 Jan 29, 2026
BANK OF AMERICA CORP /DE/ History Added to 59,149 98 0.0% 0.0% 29 +28,412 92.44% Q4 2025 Feb 17, 2026
DEUTSCHE BANK AG\ History Added to 47,007 78 0.0% 30 +46,783 20885.27% Q4 2025 Feb 11, 2026
Andina Capital Management, LLC History Added to 41,572 69 0.04% 0.04% 31 +9,107 28.05% Q4 2025 Feb 12, 2026
STRS OHIO History No change 40,000 66 0.0% 0.0% 32 0 0.0% Q4 2025 Feb 02, 2026
TWO SIGMA SECURITIES, LLC History Reduced 37,293 62 0.01% 0.01% 33 -10,594 -22.12% Q4 2025 Feb 17, 2026
LOS ANGELES CAPITAL MANAGEMENT LLC History No change 29,205 58 0.0% 0.0% 34 0 0.0% Q4 2025 Feb 11, 2026
PRICE T ROWE ASSOCIATES INC /MD/ History No change 33,876 57 0.0% 0.0% 35 0 0.0% Q4 2025 Feb 17, 2026
Russell Investments Group, Ltd. History Reduced 32,588 55 0.0% 0.0% 36 -18,835 -36.63% Q4 2025 Feb 17, 2026
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. History Added to 32,126 53 0.0% 0.0% 38 +98 0.31% Q4 2025 Feb 17, 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP History No change 32,288 53 0.0% 0.0% 37 0 0.0% Q4 2025 Feb 13, 2026
INTECH INVESTMENT MANAGEMENT LLC History Reduced 31,486 52 0.0% 0.0% 39 -25,248 -44.5% Q4 2025 Feb 10, 2026
Invesco Ltd. History Added to 31,055 51 0.0% 0.0% 40 +8,054 35.02% Q4 2025 Feb 19, 2026
R Squared Ltd History Added to 28,945 48 0.02% 0.02% 41 +4,454 18.19% Q4 2025 Jan 30, 2026
HRT FINANCIAL LP History New 26,353 44 0.0% 42 +26,353 New Q4 2025 Feb 12, 2026
MILLENNIUM MANAGEMENT LLC History Reduced 25,650 42 0.0% 0.0% 43 -176,085 -87.29% Q4 2025 Feb 17, 2026
TWO SIGMA INVESTMENTS, LP History Added to 23,215 38 0.0% 0.0% 44 +6,260 36.92% Q4 2025 Feb 17, 2026
MANUFACTURERS LIFE INSURANCE COMPANY, THE History New 20,582 34 0.0% 45 +20,582 New Q4 2025 Feb 13, 2026
TWO SIGMA ADVISERS, LP History Added to 16,800 28 0.0% 0.0% 46 +6,500 63.11% Q4 2025 Feb 17, 2026
Police & Firemen's Retirement System of New Jersey History No change 16,326 27 0.0% 0.0% 47 0 0.0% Q4 2025 Feb 13, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History Reduced 15,812 26 0.0% 0.0% 48 -6,033 -27.62% Q4 2025 Feb 17, 2026
AQR CAPITAL MANAGEMENT LLC History Reduced 14,557 24 0.0% 0.0% 50 -1,921 -11.66% Q4 2025 Feb 17, 2026
BNP PARIBAS FINANCIAL MARKETS History Added to 14,407 24 0.0% 0.0% 49 +1,232 9.35% Q4 2025 Feb 10, 2026
Engineers Gate Manager LP History Reduced 13,574 22 0.0% 0.0% 52 -52 -0.38% Q4 2025 Feb 17, 2026
VOYA INVESTMENT MANAGEMENT LLC History No change 13,694 22 0.0% 0.0% 51 0 0.0% Q4 2025 Feb 12, 2026
Neuberger Berman Group LLC History Reduced 12,525 20 0.0% 0.0% 54 -2,097 -14.34% Q4 2025 Feb 13, 2026
ProShare Advisors LLC History Added to 12,291 20 0.0% 0.0% 53 +785 6.82% Q4 2025 Feb 06, 2026
ACADIAN ASSET MANAGEMENT LLC History Added to 11,932 19 0.0% 0.0% 55 +1,554 14.97% Q4 2025 Feb 10, 2026
Point72 Asset Management, L.P. History New 10,418 17 0.0% 56 +10,418 New Q4 2025 Feb 17, 2026
N.E.W. Advisory Services LLC History No change 10,000 16 0.0% 0.0% 57 0 0.0% Q4 2025 Jan 28, 2026
FMR LLC History Added to 9,158 15 0.0% 0.0% 58 +7,512 456.38% Q4 2025 Feb 17, 2026
Zurcher Kantonalbank (Zurich Cantonalbank) History Reduced 8,324 13 0.0% 0.0% 59 -511 -5.78% Q4 2025 Jan 27, 2026
CITIGROUP INC History Reduced 7,263 12 0.0% 0.0% 60 -6,427 -46.95% Q4 2025 Feb 13, 2026
Ameritas Investment Partners, Inc. History No change 6,625 11 0.0% 0.0% 61 0 0.0% Q4 2025 Feb 11, 2026
GAMMA Investing LLC History Added to 6,002 10 0.0% 0.0% 63 +3,424 132.82% Q4 2025 Jan 05, 2026
Legal & General Group Plc History No change 6,061 10 0.0% 0.0% 62 0 0.0% Q4 2025 Feb 09, 2026
Tower Research Capital LLC (TRC) History Reduced 5,875 9 0.0% 0.0% 64 -4,157 -41.44% Q4 2025 Feb 17, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM History Reduced 4,138 6 0.0% 0.0% 65 -647 -13.52% Q4 2025 Feb 17, 2026
Sterling Capital Management LLC History Reduced 3,145 5 0.0% 0.0% 67 -544 -14.75% Q4 2025 Feb 13, 2026
NEW YORK STATE COMMON RETIREMENT FUND History No change 3,365 5 0.0% 0.0% 66 0 0.0% Q4 2025 Feb 12, 2026
AMALGAMATED BANK History Reduced 2,114 4 0.0% 0.0% 68 -121 -5.41% Q4 2025 Feb 05, 2026
ROYAL BANK OF CANADA History New 2,002 3 0.0% 69 +2,002 New Q4 2025 Feb 17, 2026
CWM, LLC History Reduced 1,127 2 0.0% 0.0% 70 -311 -21.63% Q4 2025 Jan 26, 2026
TOWARZYSTWO FUNDUSZY INWESTYCYJNYCH PZU SA History No change 1,200 2 0.0% 0.0% 71 0 0.0% Q4 2025 Feb 13, 2026
Optiver Holding B.V. History No change 1,084 1 0.0% 0.0% 72 0 0.0% Q4 2025 Feb 17, 2026
XTX Topco Ltd History Closed out 0 0 0.0% -25,178 -100.0% Q3 2025 Nov 14, 2025
Squarepoint Ops LLC History Closed out 0 0 0.0% -17,997 -100.0% Q3 2025 Nov 14, 2025
Quadrature Capital Ltd History Closed out 0 0 0.0% -15,707 -100.0% Q3 2025 Nov 13, 2025
Virtu Financial LLC History Closed out 0 0 0.0% -14,151 -100.0% Q3 2025 Nov 14, 2025
NISA INVESTMENT ADVISORS, LLC History Closed out 0 0 0.0% -11,800 -100.0% Q3 2025 Oct 23, 2025
Corient Private Wealth LLC History Closed out 0 0 0.0% -11,000 -100.0% Q3 2025 Nov 14, 2025
MEEDER ASSET MANAGEMENT INC History Closed out 0 0 0.0% -4,199 -100.0% Q3 2025 Oct 24, 2025
Private Wealth Management Group, LLC History Closed out 0 0 0.0% -1,628 -100.0% Q3 2025 Oct 17, 2025
SIMPLEX TRADING, LLC History Closed out 0 0 0.0% -930 -100.0% Q3 2025 Nov 12, 2025
Physician Wealth Advisors, Inc. History Closed out 0 0 -452 -100.0% Q3 2025 Nov 04, 2025
Arax Advisory Partners History Closed out 0 0 -158 -100.0% Q3 2025 Nov 14, 2025
Versant Capital Management, Inc History Closed out 0 0 -152 -100.0% Q3 2025 Oct 27, 2025
PNC FINANCIAL SERVICES GROUP, INC. History Added to 288 0 +143 98.62% Q4 2025 Feb 06, 2026
ROTHSCHILD INVESTMENT LLC History New 86 0 +86 New Q4 2025 Feb 10, 2026
True Wealth Design, LLC History Reduced 12 0 -80 -86.96% Q4 2025 Jan 08, 2026
EverSource Wealth Advisors, LLC History Reduced 123 0 -32 -20.65% Q4 2025 Feb 06, 2026
Allworth Financial LP History New 15 0 +15 New Q4 2025 Feb 05, 2026
SBI Securities Co., Ltd. History Reduced 14 0 -4 -22.22% Q4 2025 Feb 03, 2026
Covestor Ltd History Reduced 22 0 -1 -4.35% Q4 2025 Feb 06, 2026
BESSEMER GROUP INC History No change 90 0 0 0.0% Q4 2025 Feb 05, 2026
Farther Finance Advisors, LLC History No change 60 0 0 0.0% Q4 2025 Jan 23, 2026