Over the trailing 12 months, NMTC insiders bought $737,399 worth of shares and sold $54,851 worth in open-market trades.
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | David J. Wambeke | Chief Business Officer | 199,999 | 0 | 199,999 | 33.4% | 08 Sep, 2026 |
| 2 | David A Rosa | Ceo And President | 180,022 | 0 | 180,022 | 30.1% | 01 Apr, 2026 |
| 3 | Ronald W. Mcclurg | Chief Financial Officer | 74,020 | 0 | 74,020 | 12.4% | 07 Apr, 2025 |
| 4 | Paul Buckman | Director | 29,789 | 0 | 29,789 | 5.0% | 07 Apr, 2026 |
| 5 | Jeffrey S Mathiesen | Director | 26,057 | 0 | 26,057 | 4.3% | 07 Apr, 2026 |
| 6 | Steve Mertens | Chief Technology Officer | 25,357 | 0 | 25,357 | 4.2% | 01 Apr, 2026 |
| 7 | Edward Andrle | Director | 22,322 | 0 | 22,322 | 3.7% | 07 Apr, 2026 |
| 8 | Mark Christianson | Market Development Director | 20,692 | 0 | 20,692 | 3.5% | 02 Jul, 2026 |
| 9 | Christopher Volker | Chief Operating Officer | 12,500 | 0 | 12,500 | 2.1% | 26 Dec, 2023 |
| 10 | Jason Richard Mills | Director | 8,281 | 0 | 8,281 | 1.4% | 07 Apr, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 27 Aug, 2026 | David J. Wambeke | Chief Business Officer | Acquired P | 33,333 | $2.01 | $67.00K | 199,999 | Direct |
| 28 Aug, 2026 | David J. Wambeke | Chief Business Officer | Acquired A | 35,000 | $0.00 | $0 | 35,000 | Direct |
| 28 Aug, 2026 | Emily J. Johns | Chief Administrative Officer | Acquired A | 12,500 | $0.00 | $0 | 12,500 | Direct |
| 28 Aug, 2026 | Mark Christianson | Market Development Director | Acquired A | 12,500 | $0.00 | $0 | 12,500 | Direct |
| 28 Aug, 2026 | Steve Mertens | Chief Technology Officer | Acquired A | 15,000 | $0.00 | $0 | 15,000 | Direct |
| 28 Aug, 2026 | David A Rosa | Ceo President | Acquired A | 68,000 | $0.00 | $0 | 68,000 | Direct |
| 28 Aug, 2026 | Christopher Volker | Chief Financial Officer | Acquired A | 35,000 | $0.00 | $0 | 35,000 | Direct |
| 30 Jun, 2026 | Mark Christianson | Market Development Director | Disposed S | 10,000 | $3.18 | $31.77K | 20,692 | Direct |
| 03 Apr, 2026 | Edward Andrle | Director | Acquired A | 41,929 | $0.00 | $0 | 22,322 | Direct |
| 03 Apr, 2026 | Jeffrey S Mathiesen | Director | Acquired A | 41,929 | $0.00 | $0 | 26,057 | Direct |
| 03 Apr, 2026 | Jason Richard Mills | Director | Acquired A | 41,929 | $0.00 | $0 | 8,281 | Direct |
| 03 Apr, 2026 | Paul Buckman | Director | Acquired A | 41,929 | $0.00 | $0 | 29,789 | Direct |
| 03 Apr, 2026 | Jeffrey S Mathiesen | Director | Acquired A | 26,036 | $0.00 | $0 | 4,339 | Direct |
| 03 Apr, 2026 | Jason Richard Mills | Director | Acquired A | 26,036 | $0.00 | $0 | 4,339 | Direct |
| 03 Apr, 2026 | Edward Andrle | Director | Acquired A | 26,036 | $0.00 | $0 | 4,339 | Direct |
| 03 Apr, 2026 | Paul Buckman | Director | Acquired A | 26,036 | $0.00 | $0 | 4,339 | Direct |
| 31 Mar, 2026 | Steve Mertens | Chief Technology Officer | Disposed F | 906 | $4.66 | $4.22K | 25,357 | Direct |
| 31 Mar, 2026 | David A Rosa | Ceo And President | Disposed F | 2,458 | $4.66 | $11.46K | 180,022 | Direct |
| 30 Mar, 2026 | Mark Christianson | Business Development Director | Disposed S | 15,363 | $4.44 | $68.21K | 33,153 | Direct |
| 31 Mar, 2026 | Mark Christianson | Business Development Director | Disposed F | 253 | $4.66 | $1.18K | 33,111 | Direct |