Montauk Renewables
MNTKInstitutional ownership · Q2 2026
Institutional holders
90
-4 (-4.3%) vs Q1 2026
Reported value
$33.3M
+38.9% vs Q1 2026
Shares held
21.4M
+571.9K shares
Quarter
Q2 2026
Period ended Jun 30, 2026
90 institutional managers reported holding 21,380,964 shares worth $33,297,716 on Form 13F for Q2 2026, against 94 in Q1 2026. Share positions on CUSIP 61218C103 only; option legs and principal-amount lines are not counted.
Top 25 institutional holders · Q2 2026
| # | Manager | Shares | Value | % of portfolio | Change | Position page |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 4,709,893 | $7.3M | < 0.01% | +490.9K | Position |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 2,706,900 | $4.2M | < 0.01% | +18.2K | Position |
| 3 | GEODE CAPITAL MANAGEMENT LLC | 1,879,292 | $2.9M | < 0.01% | +120.0K | Position |
| 4 | Baader Bank Aktiengesellschaft | 1,605,000 | $2.5M | 0.19% | — | Position |
| 5 | STATE STREET CORPORATION | 1,369,693 | $2.1M | < 0.01% | +4.2K | Position |
| 6 | Barclays PLC | 953,510 | $1.5M | < 0.01% | -85.4K | Position |
| 7 | AMERICAN CENTURY COMPANIES INC | 950,442 | $1.5M | < 0.01% | -4.0K | Position |
| 8 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 539,334 | $841.4K | < 0.01% | +18.7K | Position |
| 9 | NORTHERN TRUST CORPORATION | 536,057 | $836.2K | < 0.01% | +30.7K | Position |
| 10 | VANGUARD PORTFOLIO MANAGEMENT LLC | 469,053 | $731.7K | < 0.01% | +80.1K | Position |
| 11 | DIMENSIONAL FUND ADVISORS LP | 448,818 | $700.2K | < 0.01% | -287.8K | Position |
| 12 | VANGUARD FIDUCIARY TRUST CO | 438,777 | $684.5K | < 0.01% | +6.5K | Position |
| 13 | Hosking Partners LLP | 390,517 | $609.2K | 0.02% | -6.4K | Position |
| 14 | FIRST TRUST ADVISORS LP | 381,889 | $595.7K | < 0.01% | +69.9K | Position |
| 15 | The Goldman Sachs Group Inc | 377,277 | $588.6K | < 0.01% | +46.1K | Position |
| 16 | RENAISSANCE TECHNOLOGIES LLC | 364,800 | $569.1K | < 0.01% | +10.2K | Position |
| 17 | JPMorgan Chase & Co | 270,982 | $422.7K | < 0.01% | +108.7K | Position |
| 18 | AQR CAPITAL MANAGEMENT LLC | 238,152 | $371.5K | < 0.01% | +199.8K | Position |
| 19 | GSA CAPITAL PARTNERS LLP | 201,055 | $314.0K | 0.02% | -88.8K | Position |
| 20 | JTC Employer Solutions Trustee Ltd | 197,859 | $311.0K | 0.02% | — | Position |
| 21 | THE BANK OF NEW YORK MELLON CORPORATION | 195,907 | $305.6K | < 0.01% | +1 | Position |
| 22 | MORGAN STANLEY | 167,182 | $260.8K | < 0.01% | -94.2K | Position |
| 23 | Nuveen LLC | 162,044 | $252.8K | < 0.01% | +22.4K | Position |
| 24 | CAPROCK Group Inc | 119,801 | $186.9K | < 0.01% | New | Position |
| 25 | J Derek Lewis & Associates Inc | 106,500 | $166.1K | 0.03% | +21.5K | Position |
Values as reported on each manager's Q2 2026 Form 13F. Change is in shares against the manager's prior-quarter filing.
13F holders by quarter
| Quarter | Holders | Shares | Value |
|---|---|---|---|
| Q2 2026 | 90 -4 | 21.4M | $33.3M |
| Q1 2026 | 94 +11 | 20.8M | $24.0M |
| Q4 2025 | 83 -7 | 19.9M | $33.3M |
| Q3 2025 | 90 +4 | 20.8M | $41.7M |
| Q2 2025 | 86 -6 | 20.9M | $46.4M |
| Q1 2025 | 92 -3 | 21.7M | $45.4M |
| Q4 2024 | 95 | 22.2M | $88.6M |
| Q3 2024 | 95 -16 | 22.2M | $115.6M |
| Q2 2024 | 111 -1 | 22.9M | $130.7M |
| Q1 2024 | 112 +7 | 23.6M | $98.1M |
| Q4 2023 | 105 +10 | 23.8M | $212.1M |
| Q3 2023 | 95 +2 | 23.0M | $209.4M |
| Q2 2023 | 93 -1 | 23.7M | $176.4M |
| Q1 2023 | 94 -3 | 24.1M | $189.0M |
| Q4 2022 | 97 +7 | 24.3M | $268.3M |
| Q3 2022 | 90 +14 | 22.6M | $393.3M |
| Q2 2022 | 76 +29 | 20.8M | $209.0M |
| Q1 2022 | 47 +21 | 14.0M | $156.3M |
| Q4 2021 | 26 +6 | 12.3M | $126.2M |
| Q3 2021 | 20 | 6.2M | $70.1M |
Q3 2021–Q2 2026, as reported on Form 13F. Earlier quarters are in the ownership explorer below.
Across other SEC filings
Fund holders · N-PORT
Loading Fund holders · N-PORT…
Annual & quarterly reports
-
10-K · FY2025 Filed 2026-03-11Business · Risk Factors · Management's Discussion and Analysis
-
10-Q · Q2 FY2026 Filed 2026-08-05Management's Discussion and Analysis · Controls and Procedures · Legal Proceedings · Risk Factors
5%+ holders · 13D/G
1 filer| Filer | % of class | Filed |
|---|---|---|
| Aktiv Investment Management Pty Ltd 13D | 15.7% | 2025-11-10 |
Latest Schedule 13D or 13G from each filer naming this CUSIP; stakes a filer has reported closed are left out.
Insiders · Form 4
Net insider transactions, 12 months
+$25.4K
1 filing with purchases ($25.4K),
0 filings with sales ($0)
Latest filings
- James A Shaw 2026-05-22 Award
- Sean F Mcclain 2026-05-22 Award
- Kevin A Van Asdalan 2026-05-22 Award
- John Ciroli 2026-05-22 Award
- John A Copelyn 2026-05-13 Buy
Ownership explorer
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Security Details
| CUSIP | 61218C103 |
|---|---|
| FIGI | BBG00YHYK376 |
| Symbol | MNTK |
| Type | Common stock |
| Class | COM as filed on 13F |
| Exchange | Nasdaq |
| Company | Montauk Renewables |
Identifier History
| Type | Value | From | To |
|---|---|---|---|
| FIGI | BBG00YHYK376 | 2026-02-07 | Current |
| CUSIP | 61218C103 | 2021-01-26 | Current |
Listing History
| Symbol | Exchange | From | To |
|---|---|---|---|
| MNTK | Nasdaq | 2021-01-25 | Current |