| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Report Date |
|---|---|---|---|---|---|
| John A. Copelyn | Director, 10%+ Owner | $523,786,780 | 21 Jan 2021 | ||
| Aktiv Investment Management (Pty) Ltd | 10%+ Owner | $44,818,553 | 03 Nov 2025 | ||
| Scott E. Hill | VP of Business Development | $5,639,981 | 28 Nov 2022 | ||
| Yunis Shaik | Director | $4,910,445 | 04 Jun 2021 | ||
| Michael Alon Jacobson | Director | $2,727,000 | 02 Apr 2024 | ||
| Theventheran (Kevin) G. Govender | Director, 10%+ Owner | $2,251,457 | 21 Jan 2021 | ||
| Sharon R. Frank | VP Environ Health & Safety | $65,589 | 24 Nov 2025 | ||
| Kevin A. Van Asdalan | CFO and Treasurer | 19 Apr 2023 | |||
| Sean F. McClain | President and CEO, Director | 19 Apr 2023 | |||
| Michael Barsch | Vice President of Business Development | 15 Sep 2023 | |||
| Jennifer E. Cunningham | Director | 01 Jan 2022 | |||
| John Ciroli | Chief Legal Officer & Secretary | 19 Apr 2023 | |||
| James A. Shaw | Vice President of Operations | 19 Apr 2023 |
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Sharon R. Frank | MNTK | Common Stock | Tax liability | -6.54% | -2,748 | 39,275 | 24 Nov 2025 | Direct | ||
| Sharon R. Frank | MNTK | Common Stock | Tax liability | -6.14% | -2,748 | 42,023 | 24 Nov 2024 | Direct | ||
| Sharon R. Frank | MNTK | Common Stock | Tax liability | -5.6% | -2,658 | 44,771 | 24 Nov 2023 | Direct | ||
| Michael Barsch | MNTK | Employee Stock Option (right to buy) | Award | 225,000 | 75,000 | 15 Sep 2023 | Direct | |||
| Kevin A. Van Asdalan | MNTK | Employee Stock Option | Award | 499,999 | 166,667 | 19 Apr 2023 | Direct | |||
| James A. Shaw | MNTK | Employee Stock Option | Award | 300,000 | 100,000 | 19 Apr 2023 | Direct | |||
| Sean F. McClain | MNTK | Employee Stock Option | Award | 600,000 | 200,000 | 19 Apr 2023 | Direct | |||
| Sharon R. Frank | MNTK | Employee Stock Option | Award | 300,000 | 100,000 | 19 Apr 2023 | Direct | |||
| John Ciroli | MNTK | Employee Stock Option | Award | 400,000 | 133,334 | 19 Apr 2023 | Direct | |||
| Sharon R. Frank | MNTK | Common Stock | Tax liability | -5.48% | -2,748 | 47,429 | 01 Dec 2022 | Direct | ||
| Scott E. Hill | MNTK | Common Stock | Sale | -14.4% | $1,253,398 | $12.03 | -104,147 | 620,460 | 28 Nov 2022 | Direct |
| Sean F. McClain | MNTK | Common Stock | Sale | -7.34% | $725,572 | $12.09 | -60,000 | 757,989 | 28 Nov 2022 | Direct |
| Sean F. McClain | MNTK | Common Stock | Tax liability | -0.01% | -87 | 817,989 | 28 Jan 2022 | Direct | ||
| Kevin A. Van Asdalan | MNTK | Common Stock | Tax liability | -0.04% | -87 | 194,511 | 28 Jan 2022 | Direct | ||
| James A. Shaw | MNTK | Common Stock | Tax liability | -0.04% | -87 | 194,545 | 28 Jan 2022 | Direct | ||
| Sharon R. Frank | MNTK | Common Stock | Tax liability | -0.17% | -87 | 50,177 | 28 Jan 2022 | Direct | ||
| John Ciroli | MNTK | Common Stock | Tax liability | -0.05% | -87 | 167,790 | 28 Jan 2022 | Direct | ||
| Scott E. Hill | MNTK | Common Stock | Tax liability | -0.01% | -87 | 724,607 | 28 Jan 2022 | Direct | ||
| Sharon R. Frank | MNTK | Common Stock | Award | 18939.4% | 50,000 | 50,264 | 01 Dec 2021 | Direct |