According to recent filings covering the 90 days ending January 13, 2026, the three most significant insider holders at Montauk Renewables are President And Ceo Sean F Mcclain (757.99K shares), Vp Of Business Development Scott E Hill (620.46K shares), Vice President Of Operations James A Shaw (194.54K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Sean F Mcclain | President And Ceo | 757,989 | 29 Nov, 2022 |
| Scott E Hill | Vp Of Business Development | 620,460 | 29 Nov, 2022 |
| James A Shaw | Vice President Of Operations | 194,545 | 01 Feb, 2022 |
| Asdalan Kevin A Van | Cfo And Treasurer | 194,511 | 01 Feb, 2022 |
| John Ciroli | Vp And Gc And Secretary | 167,790 | 01 Feb, 2022 |
| Sharon R Frank | Vp Environ Health & Safety | 39,275 | 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 |
| 01 Dec, 2022 | Sharon R Frank | Common Stock | D | 2,748 | $10.01 | 47,429 | D | F |
| 28 Nov, 2022 | Sean F Mcclain | Common Stock | D | 57,750 | $12.07 | 760,239 | D | S |
| 28 Nov, 2022 | Sean F Mcclain | Common Stock | D | 2,250 | $12.68 | 757,989 | D | S |
| 28 Nov, 2022 | Scott E Hill | Common Stock | D | 2,350 | $12.68 | 620,460 | D | S |
| 28 Nov, 2022 | Scott E Hill | - | - | 622,810 | D | |||
| 28 Nov, 2022 | Scott E Hill | Common Stock | D | 101,797 | $12.02 | 622,810 | D | S |
| 28 Nov, 2022 | Scott E Hill | - | - | 620,460 | D | |||
| 28 Jan, 2022 | John Ciroli | Common Stock | D | 87 | $10.01 | 167,790 | D | F |
| 28 Jan, 2022 | John Ciroli | - | - | 167,790 | D | |||
| 28 Jan, 2022 | Asdalan Kevin A Van | Common Stock | D | 87 | $10.01 | 194,511 | D | F |
| 28 Jan, 2022 | James A Shaw | Common Stock | D | 87 | $10.01 | 194,545 | D | F |
| 28 Jan, 2022 | Sean F Mcclain | Common Stock | D | 87 | $10.01 | 817,989 | D | F |
| 28 Jan, 2022 | Scott E Hill | Common Stock | D | 87 | $10.01 | 724,607 | D | F |
| 28 Jan, 2022 | Sharon R Frank | Common Stock | D | 87 | $10.01 | 50,177 | D | F |
| 01 Dec, 2021 | Sharon R Frank | Common Stock | A | 50,000 | $0.00 | 50,264 | D | A |
| 28 Jan, 2021 | John Ciroli | Common Stock | A | 264 | $0.00 | 264 | D | A |
| 28 Jan, 2021 | John Ciroli | Common Stock | A | 317,121 | $0.00 | 317,385 | D | A |