MNTK's three largest insider shareholders as of May 30, 2026 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 |
|---|---|---|---|---|
| John Ciroli | Vp, Gc And Secretary | 167,790 | 0 | 01 Feb, 2022 |
| Asdalan Kevin A Van | Cfo And Treasurer | 194,511 | 0 | 01 Feb, 2022 |
| James A Shaw | Vice President Of Operations | 194,545 | 0 | 01 Feb, 2022 |
| 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 |
| 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 | James A Shaw | Employee Stock Option | A | 100,000 | $0.00 | 100,000 | 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 | Asdalan Kevin A Van | Employee Stock Option | A | 166,666 | $0.00 | 166,666 | D | A |
| 19 Apr, 2023 | Asdalan Kevin A Van | Employee Stock Option | A | 166,666 | $0.00 | 166,666 | D | A |
| 19 Apr, 2023 | Sean F Mcclain | Employee Stock Option | A | 200,000 | $0.00 | 200,000 | D | A |
| 19 Apr, 2023 | John Ciroli | Employee Stock Option | A | 133,333 | $0.00 | 133,333 | D | A |
| 19 Apr, 2023 | John Ciroli | Employee Stock Option | A | 133,333 | $0.00 | 133,333 | 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 | Sean F Mcclain | Employee Stock Option | A | 200,000 | $0.00 | 200,000 | D | A |
| 19 Apr, 2023 | James A Shaw | Employee Stock Option | A | 100,000 | $0.00 | 100,000 | D | A |
| 19 Apr, 2023 | Asdalan Kevin A Van | Employee Stock Option | A | 166,666 | $0.00 | 166,666 | D | A |
| 19 Apr, 2023 | Asdalan Kevin A Van | Employee Stock Option | A | 166,666 | $0.00 | 166,666 | D | A |