Montauk Renewables Inc. (MNTK) Insider Trading

Last 12 months

Insiders bought $25k on the open market and sold nothing.

Net open-market

+$25k

1 buy · 0 sales

Under a 10b5-1 plan

—

no sales

Insiders who bought / sold

1 / 0

executives and directors

Last open-market buy

May 2026

May 11, 2026

Get an email when MNTK's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
May 11	John A Copelyn Director	Bought	17,506	$1.45	$25k	New	Form 4

May 11
John A Copelyn
Director · bought 17,506 at $1.45
$25k
New position

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch MNTK, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

Related stocks: Gas & Other Services Combined

OPALOpal Fuels Inc.

CLNEClean Energy Fuels Corp.

VIASPVia Renewables, Inc.

GNEGenie Energy Ltd.

UTLUnitil Corporation

NOVAQSunnova Energy International Inc.

NWENorthWestern Energy Group, Inc.

MSEXMiddlesex Water Company

Spot a number that looks wrong? Check it in MNTK's SEC filings or

Download this analysis as a PDF (Pro)

Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

2 of 2 free stocks used today

Keep analysing MNTK

Create a free account and get 14 days of Premium: every stock and every tool.

Unlimited stocksQuality, fair value and dividends for 10,000+ stocks
Stock screenerFilter on quality, valuation and dividend safety
Portfolio trackerReal return, dividend calendar and portfolio quality
Editable DCFChange the assumptions and watch fair value move
Compare side by sideUp to 10 stocks in one table
Unlimited alertsPrice, P/E, Quality Score and yield

No card. Moves to Free after, unless you upgrade.

Already have an account?

Or come back tomorrow. Stocks on your watchlist are always free to view.