WAVEMAN · COMPANY

MNTK · Montauk Renewables, Inc.

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TEAM-0.32% 13F +439META+3.01% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV+4.49% 13F +693CRM+2.92% 13F +1,018CVNA-0.98% 13F +794TPL-0.71% 13F +444NET+4.32% 13F +710MSTR+17.56% 13F +526DELL+4.91% 13F +1,203CRWD+5.68% 13F +1,382ANET+1.22% 13F +1,323COIN+10.14% 13F +475TEAM-0.32% 13F +439META+3.01% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV+4.49% 13F +693CRM+2.92% 13F +1,018CVNA-0.98% 13F +794TPL-0.71% 13F +444NET+4.32% 13F +710MSTR+17.56% 13F +526DELL+4.91% 13F +1,203CRWD+5.68% 13F +1,382ANET+1.22% 13F +1,323COIN+10.14% 13F +475

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MNTK

Name: Montauk Renewables, Inc. (MNTK) insider trading and ownership data
Creator: WaveMan
License: https://wave-man.com/terms

Montauk Renewables, Inc.

UTILITIES · GAS & OTHER SERVICES COMBINED · CIK 0001826600

SEC FILINGS☆ WATCH

INSIDER NET · 180D

$25.4K

open-market buys minus sells, Form 4 codes P and S

INSIDER BUYERS · 180D

CONGRESS BUYERS · 1Y

FUNDS ADDED · QTR

13F, latest reported quarter

REVENUE GROWTH

+0.4%

XBRL, annual

NET MARGIN

1.0%

SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST

INSIDERS

net +$25.4K over 180 days

more than 71% of Utilities

CONGRESS

no member of Congress has reported trading it

FUNDS

52 funds added or opened last quarter

below 80% of Utilities

REVENUE

+0.4% year over year

below 78% of Utilities

MARGIN

1.0% net margin

below 79% of Utilities

BUYBACKS

no share repurchases reported

SHORT

0.9% of shares outstanding short · 5.8 days to cover · settled 2026-07-31

below 71% of Utilities

THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET

52 funds added or opened positions in the latest 13F quarter, of 93 holders.

The year, with the filings on it

Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail

TOTAL 12M RETURN +7.7%

+7.7%12M

INSIDER BUY

INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY

Live price

Daily candles from TradingView, on their licence — no filings are marked on this one

WHY THIS NAME IS ON THE DESK

Insiders are net buyers of their own stock.

The record shows a net $25.4K bought by insiders over 180 days, 52 funds added last quarter. Every figure is a federal filing, dated the day it became public.

Backtest this pattern Open the screener

Same sector, ranked by filing activity

Sector from the SEC's own SIC classification

ED YORW OKLO CWST PCG QRHC RGCO WM VST TRGP ORA SMC

Insider transactions

Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

Over the last 180 days, Montauk Renewables, Inc. insiders bought a net $25.4K of stock across 5 Form 4 purchases and sales, with 1 insider(s) buying. Source: SEC Form 4 filings, as of 2026-09-05.

INSIDER

FILED

VALUE

Copelyn John A

Director

BUY

2026-05-11

17,506.0

$25.4K

Hill Scott E

VP of Business Development

SELL

2022-11-28

101,797.0

$1.2M

Hill Scott E

VP of Business Development

SELL

2022-11-28

2,350.0

$29.8K

McClain Sean F

President and CEO

SELL

2022-11-28

57,750.0

$697.0K

McClain Sean F

President and CEO

SELL

2022-11-28

2,250.0

$28.5K

5 TRANSACTIONS ON RECORD · THIN RECORD, READ IT AS SUCH

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Institutional holders

13F · holdings as of the latest quarter funds have reported

BlackRock, Inc.

4,709,893.0 sh

$7.3M

VANGUARD CAPITAL MANAGEMENT LLC

2,706,900.0 sh

$4.2M

GEODE CAPITAL MANAGEMENT, LLC

1,879,292.0 sh

$2.9M

Baader Bank Aktiengesellschaft

1,605,000.0 sh

$2.5M

STATE STREET CORP

1,369,693.0 sh

$2.1M

SCHEDULE 13D/G

No 5%+ ownership filings

Nobody has crossed 5% with a filing obligation. Absence is a fact here, not missing data.

FORM 144

No planned-sale notices

No insider has notified an intent to sell. This is the panel to watch after a run-up.

Fund concentration

N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show

First Trust NASDAQ Clean Edge Green Energy Index Fund

$345.7K POSITION · AS OF 2026-03-31

0.1%

Applied Finance IVS US SMID ETF

$7.4K POSITION · AS OF 2026-03-31

0.0%

Carbon Collective Climate Solutions U.S. Equity ETF

$7.9K POSITION · AS OF 2026-04-30

0.0%

Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF

$83.0K POSITION · AS OF 2026-02-28

0.0%

Avantis U.S. Small Cap Equity ETF

$153.5K POSITION · AS OF 2026-02-28

0.0%

VANGUARD RUSSELL 2000 VALUE INDEX FUND

$59.4K POSITION · AS OF 2026-02-28

0.0%

SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK

Fundamentals

Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all

	2025-12	2024-12	2023-12	2022-12
REVENUE	$176.4M	$175.7M	$174.9M	$213.4M
GROSS PROFIT	—	—	$45.3M	$65.7M
OPERATING INCOME	$852.0K	$16.1M	$23.6M	$44.6M
NET INCOME	$1.7M	$9.7M	$14.9M	$35.2M
EPS (DILUTED)	0.01	0.07	0.11	0.25
OPERATING CASH FLOW	$30.3M	$43.8M	$41.1M	$81.1M
CASH	$23.8M	$45.6M	$73.8M	$105.2M
LONG-TERM DEBT	$126.0M	$43.8M	$55.6M	$63.5M

SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-05 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE