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United States Electric Utilities & IPPs

Montauk Renewables Inc (MNTK)

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Over the last 90 days, Montauk Renewables Inc. saw one insider buy transaction totaling $25,383.7. This contrasts with earlier periods, where significant sell transactions were observed from executives. The stock has experienced a 24.8% increase in the past 90 days, trading near its 52-week low.
Stock chart
Ticker: MNTK Exchange: NAS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Copelyn John A
1 purchase — total 25,384 USD
Buy 11 May 2026
Value US$3,766,779.68 | Price 120.91 | Shares 77,767
Sale 28 Nov 2022
Value US$4,767,709.57 | Price 424.59 | Shares 54,413
Sale 28 Nov 2022
Value US$4,237,105.37 | Price 211.02 | Shares 54,919
Sale 28 Nov 2022
Value US$28,530.00 | Price 12.68 | Shares 2,250
Sale 28 Nov 2022
Value US$697,042.50 | Price 12.07 | Shares 57,750
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-05-13 2026-05-11 B Purchase
Copelyn John A
Non-Executive Director
77,767 +47.4%
120.91
US$3,766,780 		77,767 +47.4% 120.91 US$3,766,780
2022-11-29 2022-11-28 S Sale
3.2
Hill Scott E

VP of Business Development

Officer
54,413 -4.6%
424.59
US$4,767,710 		54,413 -4.6% 424.59 US$4,767,710
2022-11-29 2022-11-28 S Sale
3.2
Hill Scott E

VP of Business Development

Officer
54,919 +44.1%
211.02
US$4,237,105 		54,919 +44.1% 211.02 US$4,237,105
2022-11-29 2022-11-28 S Sale
3.2
McClain Sean F

President and CEO

Executive Director
2,250 -0.3%
12.68
US$28,530 		2,250 -0.3% 12.68 US$28,530
2022-11-29 2022-11-28 S Sale
3.2
McClain Sean F

President and CEO

Executive Director
57,750 -7.1%
12.07
US$697,042 		57,750 -7.1% 12.07 US$697,042
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