Montauk Renewables, Inc. (MNTK) Insider Ownership

Historic Insider Ownership Trends

As of March 23, 2026, Montauk Renewables's top three insider holders are Sean F Mcclain (President And Ceo, 757.99K shares), Scott E Hill (Vp Of Business Development, 620.46K shares), James A Shaw (Vice President Of Operations, 194.54K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Sean F Mcclain President And Ceo 757,989 0 29 Nov, 2022
Scott E Hill Vp Of Business Development 620,460 0 29 Nov, 2022
James A Shaw Vice President Of Operations 194,545 0 01 Feb, 2022
Asdalan Kevin A Van Cfo And Treasurer 194,511 0 01 Feb, 2022
John Ciroli Vp, Gc And Secretary 167,790 0 01 Feb, 2022
Sharon R Frank Vp Environ Health Safety 39,275 0 26 Nov, 2025

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
24 Nov, 2025 Sharon R Frank Common Stock D 2,748 $1.67 39,275 D F
24 Nov, 2024 Sharon R Frank Common Stock D 2,748 $4.46 42,023 D F
24 Nov, 2023 Sharon R Frank Common Stock D 2,658 $9.09 44,771 D F
15 Sep, 2023 Michael Barsch Employee Stock Option (right to buy) A 75,000 $0.00 75,000 D A
15 Sep, 2023 Michael Barsch Employee Stock Option (right to buy) A 75,000 $0.00 75,000 D A
15 Sep, 2023 Michael Barsch Employee Stock Option (right to buy) A 75,000 $0.00 75,000 D A
19 Apr, 2023 John Ciroli Employee Stock Option A 133,333 $0.00 133,333 D A
19 Apr, 2023 James A Shaw Employee Stock Option A 100,000 $0.00 100,000 D A
19 Apr, 2023 Sean F Mcclain Employee Stock Option A 200,000 $0.00 200,000 D A
19 Apr, 2023 Asdalan Kevin A Van Employee Stock Option A 166,666 $0.00 166,666 D A
19 Apr, 2023 Sharon R Frank Employee Stock Option A 100,000 $0.00 100,000 D A
19 Apr, 2023 James A Shaw Employee Stock Option A 100,000 $0.00 100,000 D A
19 Apr, 2023 John Ciroli Employee Stock Option A 133,333 $0.00 133,333 D A
19 Apr, 2023 Sean F Mcclain Employee Stock Option A 200,000 $0.00 200,000 D A
19 Apr, 2023 Asdalan Kevin A Van Employee Stock Option A 166,666 $0.00 166,666 D A
19 Apr, 2023 Sharon R Frank Employee Stock Option A 100,000 $0.00 100,000 D A
19 Apr, 2023 James A Shaw Employee Stock Option A 100,000 $0.00 100,000 D A
19 Apr, 2023 John Ciroli Employee Stock Option A 133,334 $0.00 133,334 D A
19 Apr, 2023 Sharon R Frank Employee Stock Option A 100,000 $0.00 100,000 D A
19 Apr, 2023 Sean F Mcclain Employee Stock Option A 200,000 $0.00 200,000 D A