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Montauk Renewables, Inc.

MNTK Clue Score36
United States Fiscal year ends December CIK 0001826600
$2.40 -5.14% Close, 12 Oct 2026

Price, with every insider trade on it

Closing prices, 12 months · point at a dot for who traded, or at the line for the close
2.40 on 12 Oct 2026
3 2 1 Oct 2025 Apr 2026 Oct 2026 13 Oct 2025 $2.10 14 Oct 2025 $2.15 15 Oct 2025 $2.19 16 Oct 2025 $2.13 17 Oct 2025 $2.10 20 Oct 2025 $2.20 21 Oct 2025 $2.14 22 Oct 2025 $2.21 23 Oct 2025 $2.21 24 Oct 2025 $2.33 27 Oct 2025 $2.12 28 Oct 2025 $2.09 29 Oct 2025 $2.07 30 Oct 2025 $2.01 31 Oct 2025 $2.03 3 Nov 2025 $2.03 4 Nov 2025 $1.82 5 Nov 2025 $1.95 6 Nov 2025 $1.64 7 Nov 2025 $1.78 10 Nov 2025 $1.86 11 Nov 2025 $1.98 12 Nov 2025 $2.06 13 Nov 2025 $1.97 14 Nov 2025 $1.92 17 Nov 2025 $1.77 18 Nov 2025 $1.74 19 Nov 2025 $1.73 20 Nov 2025 $1.61 21 Nov 2025 $1.71 24 Nov 2025 $1.67 25 Nov 2025 $1.61 26 Nov 2025 $1.59 28 Nov 2025 $1.63 1 Dec 2025 $1.61 2 Dec 2025 $1.63 3 Dec 2025 $1.73 4 Dec 2025 $1.77 5 Dec 2025 $1.71 8 Dec 2025 $1.71 9 Dec 2025 $1.75 10 Dec 2025 $1.83 11 Dec 2025 $1.87 12 Dec 2025 $1.82 15 Dec 2025 $1.88 16 Dec 2025 $1.88 17 Dec 2025 $1.90 18 Dec 2025 $1.85 19 Dec 2025 $1.87 22 Dec 2025 $1.86 23 Dec 2025 $1.79 24 Dec 2025 $1.83 26 Dec 2025 $1.84 29 Dec 2025 $1.69 30 Dec 2025 $1.66 31 Dec 2025 $1.67 2 Jan 2026 $1.68 5 Jan 2026 $1.65 6 Jan 2026 $1.59 7 Jan 2026 $1.53 8 Jan 2026 $1.58 9 Jan 2026 $1.48 12 Jan 2026 $1.52 13 Jan 2026 $1.44 14 Jan 2026 $1.42 15 Jan 2026 $1.45 16 Jan 2026 $1.43 20 Jan 2026 $1.37 21 Jan 2026 $1.54 22 Jan 2026 $1.52 23 Jan 2026 $1.47 26 Jan 2026 $1.45 27 Jan 2026 $1.43 28 Jan 2026 $1.65 29 Jan 2026 $1.55 30 Jan 2026 $1.74 2 Feb 2026 $1.70 3 Feb 2026 $1.73 4 Feb 2026 $1.77 5 Feb 2026 $1.89 6 Feb 2026 $1.81 9 Feb 2026 $1.74 10 Feb 2026 $1.73 11 Feb 2026 $1.74 12 Feb 2026 $1.72 13 Feb 2026 $1.71 17 Feb 2026 $1.73 18 Feb 2026 $1.61 19 Feb 2026 $1.60 20 Feb 2026 $1.68 23 Feb 2026 $1.54 24 Feb 2026 $1.54 25 Feb 2026 $1.58 26 Feb 2026 $1.58 27 Feb 2026 $1.54 2 Mar 2026 $1.59 3 Mar 2026 $1.57 4 Mar 2026 $1.62 5 Mar 2026 $1.54 6 Mar 2026 $1.54 9 Mar 2026 $1.53 10 Mar 2026 $1.41 11 Mar 2026 $1.37 12 Mar 2026 $1.41 13 Mar 2026 $1.35 16 Mar 2026 $1.40 17 Mar 2026 $1.34 18 Mar 2026 $1.26 19 Mar 2026 $1.23 20 Mar 2026 $1.13 23 Mar 2026 $1.17 24 Mar 2026 $1.14 25 Mar 2026 $1.12 26 Mar 2026 $1.25 27 Mar 2026 $1.21 30 Mar 2026 $1.19 31 Mar 2026 $1.15 1 Apr 2026 $1.13 2 Apr 2026 $1.14 6 Apr 2026 $1.13 7 Apr 2026 $1.18 8 Apr 2026 $1.17 9 Apr 2026 $1.18 10 Apr 2026 $1.20 13 Apr 2026 $1.20 14 Apr 2026 $1.19 15 Apr 2026 $1.21 16 Apr 2026 $1.28 17 Apr 2026 $1.29 20 Apr 2026 $1.42 21 Apr 2026 $1.40 22 Apr 2026 $1.44 23 Apr 2026 $1.41 24 Apr 2026 $1.43 27 Apr 2026 $1.39 28 Apr 2026 $1.45 29 Apr 2026 $1.44 30 Apr 2026 $1.46 1 May 2026 $1.40 4 May 2026 $1.37 5 May 2026 $1.54 6 May 2026 $1.46 7 May 2026 $1.42 8 May 2026 $1.33 11 May 2026 $1.45 12 May 2026 $1.41 13 May 2026 $1.52 14 May 2026 $1.62 15 May 2026 $1.53 18 May 2026 $1.57 19 May 2026 $1.46 20 May 2026 $1.47 21 May 2026 $1.53 22 May 2026 $1.55 26 May 2026 $1.62 27 May 2026 $1.75 28 May 2026 $1.75 29 May 2026 $1.74 1 Jun 2026 $1.79 2 Jun 2026 $1.71 3 Jun 2026 $1.62 4 Jun 2026 $1.70 5 Jun 2026 $1.66 8 Jun 2026 $1.72 9 Jun 2026 $1.69 10 Jun 2026 $1.68 11 Jun 2026 $1.62 12 Jun 2026 $1.66 15 Jun 2026 $1.70 16 Jun 2026 $1.61 17 Jun 2026 $1.56 18 Jun 2026 $1.59 22 Jun 2026 $1.52 23 Jun 2026 $1.56 24 Jun 2026 $1.56 25 Jun 2026 $1.50 26 Jun 2026 $1.51 29 Jun 2026 $1.56 30 Jun 2026 $1.56 1 Jul 2026 $1.63 2 Jul 2026 $1.69 6 Jul 2026 $1.66 7 Jul 2026 $1.64 8 Jul 2026 $1.57 9 Jul 2026 $1.56 10 Jul 2026 $1.61 13 Jul 2026 $1.65 14 Jul 2026 $1.65 15 Jul 2026 $1.70 16 Jul 2026 $1.69 17 Jul 2026 $1.57 20 Jul 2026 $1.59 21 Jul 2026 $1.68 22 Jul 2026 $1.75 23 Jul 2026 $1.80 24 Jul 2026 $1.87 27 Jul 2026 $1.90 28 Jul 2026 $1.82 29 Jul 2026 $1.79 30 Jul 2026 $1.83 31 Jul 2026 $1.71 3 Aug 2026 $1.70 4 Aug 2026 $1.70 5 Aug 2026 $1.71 6 Aug 2026 $1.70 7 Aug 2026 $1.79 10 Aug 2026 $1.71 11 Aug 2026 $1.81 12 Aug 2026 $1.86 13 Aug 2026 $1.88 14 Aug 2026 $1.88 17 Aug 2026 $1.87 18 Aug 2026 $1.84 19 Aug 2026 $1.93 20 Aug 2026 $1.89 21 Aug 2026 $1.88 24 Aug 2026 $1.86 25 Aug 2026 $1.82 26 Aug 2026 $1.78 27 Aug 2026 $1.80 28 Aug 2026 $1.77 31 Aug 2026 $1.72 1 Sep 2026 $1.76 2 Sep 2026 $2.13 3 Sep 2026 $2.25 4 Sep 2026 $2.23 8 Sep 2026 $2.50 9 Sep 2026 $2.46 10 Sep 2026 $2.55 11 Sep 2026 $2.64 14 Sep 2026 $2.22 15 Sep 2026 $2.29 16 Sep 2026 $2.25 17 Sep 2026 $2.20 18 Sep 2026 $2.25 21 Sep 2026 $2.33 22 Sep 2026 $2.60 23 Sep 2026 $2.28 24 Sep 2026 $2.88 25 Sep 2026 $2.93 28 Sep 2026 $2.80 29 Sep 2026 $2.94 30 Sep 2026 $2.73 1 Oct 2026 $2.79 2 Oct 2026 $2.87 5 Oct 2026 $2.91 6 Oct 2026 $2.66 7 Oct 2026 $2.66 8 Oct 2026 $2.74 9 Oct 2026 $2.53 12 Oct 2026 $2.40 Copelyn John A Director Bought $25.38K 11 May 2026 · at $1.45
1 buy0 sales at will0 planned sales

Key numbers

Fiscal year 2025, ended 31 Dec 2025, as filed
Revenue
$176.38M
Net income
$1.75M
Free cash flow
$86.21M
Operating margin
0.5%
Net margin
1.0%
Return on equity
0.7%
Return on capital
0.2%
Debt to equity
0.49
Revenue growth, 1 yr
0.4%
Revenue growth, 5 yr
12.0% a year
EPS growth, 1 yr
-85.7%

Revenue and profit

Fiscal years, as filed with the SEC · point at a year for the detail
Full statements →
100M 5M FY20 Fiscal year 2020 Revenue $100.22M Net income $4.60M Margin 4.6% 148M -5M FY21 Fiscal year 2021 Revenue $148.13M Net income $4.53M Margin -3.1% · growth +47.8% 213M 35M FY22 Fiscal year 2022 Revenue $213.39M Net income $35.19M Margin 16.5% · growth +44.1% 175M 15M FY23 Fiscal year 2023 Revenue $174.90M Net income $14.95M Margin 8.5% · growth -18.0% 176M 10M FY24 Fiscal year 2024 Revenue $175.74M Net income $9.73M Margin 5.5% · growth +0.5% 176M 2M FY25 Fiscal year 2025 Revenue $176.38M Net income $1.75M Margin 1.0% · growth +0.4%
RevenueNet incomeLoss

Latest insider transactions

From Form 4, most recent first
All of them →
DateInsiderTypeValueOf own stake
11 May 2026 Copelyn John A
Director
Bought $25.38K opened
28 Nov 2022 Hill Scott E
VP of Business Development
Sold, plan not stated $1.25M 14.4%
28 Nov 2022 McClain Sean F
President and CEO
Sold, plan not stated $725.57K 7.3%