As of March 23, 2026, the three largest insider holders of NMTC are David A Rosa (Ceo And President, 1.08Mn shares), David J. Wambeke (Chief Business Officer, 1.00Mn shares), Ronald W. Mcclurg (Chief Financial Officer, 444.12K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| David A Rosa | Ceo And President | 1,082,590 | 0 | 20 Feb, 2026 |
| David J. Wambeke | Chief Business Officer | 1,000,000 | 0 | 03 Mar, 2026 |
| Ronald W. Mcclurg | Chief Financial Officer | 444,117 | 0 | 07 Apr, 2025 |
| Mark Christianson | Business Development Director | 228,920 | 0 | 20 Feb, 2026 |
| Mark Christianson | Business Development Director | 214,283 | 0 | 16 Mar, 2026 |
| Steve Mertens | Chief Technology Officer | 153,047 | 0 | 20 Feb, 2026 |
| Paul Buckman | 136,804 | 0 | 19 Feb, 2025 | |
| Jeffrey S Mathiesen | 114,414 | 0 | 19 Feb, 2025 | |
| Edward Andrle | 92,003 | 0 | 19 Feb, 2025 | |
| Christopher Volker | Chief Operating Officer | 75,000 | 0 | 26 Dec, 2023 |
| Jason Richard Mills | 7,758 | 0 | 02 Jan, 2026 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 12 Mar, 2026 | Mark Christianson | Common Stock | D | 817 | $0.80 | 214,383 | D | S |
| 13 Mar, 2026 | Mark Christianson | Common Stock | D | 100 | $0.80 | 214,283 | D | S |
| 10 Mar, 2026 | Mark Christianson | Common Stock | D | 11,611 | $0.80 | 217,309 | D | S |
| 11 Mar, 2026 | Mark Christianson | Common Stock | D | 2,109 | $0.80 | 215,200 | D | S |
| 01 Mar, 2026 | David J. Wambeke | Common Stock | A | 1,000,000 | $0.67 | 1,000,000 | D | P |
| 01 Mar, 2026 | David J. Wambeke | Option to Purchase Common Stock | A | 500,000 | $0.00 | 500,000 | D | A |
| 18 Feb, 2026 | Mark Christianson | Common Stock | D | 1,812 | $0.68 | 228,920 | D | F |
| 18 Feb, 2026 | David A Rosa | Common Stock | D | 71,325 | $0.68 | 1,082,590 | D | F |
| 18 Feb, 2026 | Steve Mertens | Common Stock | D | 7,376 | $0.68 | 153,047 | D | F |
| 18 Feb, 2026 | Mark Christianson | Common Stock | D | 1,812 | $0.68 | 228,920 | D | F |
| 31 Dec, 2025 | David A Rosa | Common Stock | A | 2,458 | $0.76 | 1,153,915 | D | F |
| 31 Dec, 2025 | Mark Christianson | Common Stock | D | 253 | $0.76 | 230,732 | D | F |
| 31 Dec, 2025 | Mark Christianson | Common Stock | D | 253 | $0.76 | 230,732 | D | F |
| 31 Dec, 2025 | Steve Mertens | Common Stock | D | 906 | $0.76 | 160,423 | D | F |
| 18 Dec, 2025 | Jason Richard Mills | Common Stock | A | 7,758 | $0.00 | 7,758 | D | A |
| 18 Dec, 2025 | Jason Richard Mills | Option to purchase common stock | A | 4,806 | $0.00 | 4,806 | D | A |
| 30 Sep, 2025 | David A Rosa | Common Stock | D | 2,458 | $0.89 | 1,156,373 | D | F |
| 30 Sep, 2025 | Mark Christianson | Common Stock | D | 253 | $0.89 | 230,985 | D | F |
| 30 Sep, 2025 | Steve Mertens | Common Stock | D | 906 | $0.89 | 161,329 | D | F |
| 30 Sep, 2025 | Mark Christianson | Common Stock | D | 253 | $0.89 | 230,985 | D | F |