Montauk Renewables, Inc. (MNTK) Institutional Ownership & Insider Trading

91 institutions reported holding Montauk Renewables, Inc. shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 1 insider trades on Form 4 since 2025-10-01.

Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason

MNTKMontauk Renewables, Inc.Follow MNTK — free

Specialty Chemicals · Basic Materials

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Market cap: 303.2M
P/E TTM: 35.5
Dividend yield: —
52-week: —
Next earnings: 11 Nov, in 18 days

Institutions · all 13F filers

quarter to 30 Jun 2026 · filers in both quarters

91 institutions held 15.0% of the shares. Across filers that reported both quarters, shares held changed +2.3%.

Largest moves, shares (millions)

Institutional flow by quarter

net shares added or trimmed, millions · filers in both quarters

Quarter	Holders	Shares held, M	Change	Increased	New	Decreased	Closed
Jun 26	91	21	+2.3%	36	12	24	13
Mar 26	94	21	+5.7%	27	17	29	8
Dec 25	81	20	-4.8%	21	4	30	12
Sep 25	89	21	+0.2%	21	11	30	7
Jun 25	85	21	-3.5%	27	13	32	18
Mar 25	91	21	-2.5%	27	12	31	15
Dec 24	93	22	-0.4%	25	13	28	14
Sep 24	93	22	-7.8%	22	7	32	25

Montauk Renewables, Inc. — questions

Who owns Montauk Renewables, Inc. stock?: 91 institutions reported Montauk Renewables, Inc. shares in 13F filings for the quarter ended 2026-06-30. The largest: BlackRock, Inc. (3.3%), VANGUARD CAPITAL MANAGEMENT LLC (1.9%), GEODE CAPITAL MANAGEMENT, LLC (1.3%).
Are Montauk Renewables, Inc. insiders buying or selling?: 1 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.

Every figure on this page comes from Montauk Renewables, Inc.'s own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.

How these figures are read: methodology · EquiReason.

Important information. Figures on this page are taken from filings submitted to the U.S. Securities and Exchange Commission (SEC) and processed automatically by EquiReason. They may contain errors, omissions or delays, and EquiReason makes no representation or warranty as to their accuracy, completeness or timeliness. Always verify figures against the original filing on SEC EDGAR before relying on them.

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