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Montauk Renewables, Inc.

MNTK
Exchange
Nasdaq
Industry
Gas & Other Services Combined
SEC CIK
0001826600

No open-market purchases or sales by Montauk Renewables, Inc. insiders were filed in the last 90 days; 90 institutions reported holding it in 13F filings for Q2 2026, worth $33.3M in total; no superinvestor holds it.

13F holders, Q2 2026

Institutional positions in Montauk Renewables, Inc. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
90
−2 vs. Q1 2026
Shares held
21.4M
+574.2K (+2.8%) vs. Q1 2026
Total value
$33.3M
+$9.33M (+38.9%) vs. Q1 2026
New holders
12
38 more added
Sold out
14
26 more reduced

2 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MNTK on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2026: 90 institutions
Q1 2021: 24 institutionsQ2 2021: 20 institutionsQ3 2021: 20 institutionsQ4 2021: 26 institutionsQ1 2022: 47 institutionsQ2 2022: 76 institutionsQ3 2022: 90 institutionsQ4 2022: 97 institutionsQ1 2023: 94 institutionsQ2 2023: 93 institutionsQ3 2023: 95 institutionsQ4 2023: 105 institutionsQ1 2024: 114 institutionsQ2 2024: 111 institutionsQ3 2024: 95 institutionsQ4 2024: 96 institutionsQ1 2025: 93 institutionsQ2 2025: 86 institutionsQ3 2025: 91 institutionsQ4 2025: 83 institutionsQ1 2026: 94 institutionsQ2 2026: 90 institutions
Value heldQ2 2026: $33.3M
Q1 2021: $42.3MQ2 2021: $21.2MQ3 2021: $70.1MQ4 2021: $126.2MQ1 2022: $156.3MQ2 2022: $209.0MQ3 2022: $393.4MQ4 2022: $268.3MQ1 2023: $189.0MQ2 2023: $176.1MQ3 2023: $209.4MQ4 2023: $212.1MQ1 2024: $98.2MQ2 2024: $130.7MQ3 2024: $115.6MQ4 2024: $88.6MQ1 2025: $45.4MQ2 2025: $46.4MQ3 2025: $41.7MQ4 2025: $33.3MQ1 2026: $24.0MQ2 2026: $33.3M
Institutions holding MNTK and their total value by quarter
QuarterHoldersValue
Q2 202690$33.3M
Q1 202694$24.0M
Q4 202583$33.3M
Q3 202591$41.7M
Q2 202586$46.4M
Q1 202593$45.4M
Q4 202496$88.6M
Q3 202495$115.6M
Q2 2024111$130.7M
Q1 2024114$98.2M
Q4 2023105$212.1M
Q3 202395$209.4M
Q2 202393$176.1M
Q1 202394$189.0M
Q4 202297$268.3M
Q3 202290$393.4M
Q2 202276$209.0M
Q1 202247$156.3M
Q4 202126$126.2M
Q3 202120$70.1M
Q2 202120$21.2M
Q1 202124$42.3M

Institutions, Q2 2026

Shares, value and share of portfolio for each institution holding Montauk Renewables, Inc.; share changes are against Q1 2026.

Institutions holding MNTK in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Point72 Asset Management, L.P.0$00.00%−10,871−100.0%Sold out
Advisor Group Holdings, Inc.0$00.00%−4,000−100.0%Sold out
MAI Capital Management0$00.00%−21−100.0%Sold out
Covestor Ltd0$00.00%−64−100.0%Sold out
CWM, LLC––––Not filed
Sunbelt Securities, Inc.––––Not filed