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).
| 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.
| 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 |