🕵️ Neuroone Medical Technologies Corp ($NMTC)
SEC insider & ownership activity, last 12 months · CIK 1500198 · every row links its SEC filing
Over the last 12 months insiders sold $55K against $737K of open-market buying. David J. Wambeke bought $737K in discretionary trades (Mar–Aug). 2 red-flag 8-Ks in the window, most recently Restatement (4.02), May 21, 2026.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
1 buyer, $737K (2 lots) · 1 seller, $55K (6 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| David J. Wambeke | 2 | $737K | 0 | – | Aug 27, 2026 |
| Christianson Mark | 0 | – | 6 | $55K | Jun 30, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Merchant Adventure Fund, L.P. | 13.6% | 13G | Feb 4, 2025 | filing ↗ | |
| Brian Pratt | 12.5% | 13G | Jul 14, 2026 | filing ↗ | |
| Barbara Pratt | 12.5% | 13G | Jul 14, 2026 | filing ↗ | |
| Bleichroeder LP | 8.0% | 13G | Aug 14, 2025 | filing ↗ | |
| Bleichroeder Holdings LLC | 8.0% | 13G | Aug 14, 2025 | filing ↗ | |
| Andew Gundlach | 8.0% | 13G | Aug 14, 2025 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Christianson Mark | $33K | Jun 30, 2026 | filing ↗ |
| Christianson Mark | $25K | Mar 9, 2026 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Other events (8.01) | Aug 27, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 27, 2026 | filing ↗ |
| Earnings (2.02) | Aug 13, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 13, 2026 | filing ↗ |
| Other events (8.01) | Jun 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 12, 2026 | filing ↗ |
| Restatement (4.02) | May 21, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 21, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 21, 2026 | filing ↗ |
| Earnings (2.02) | May 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 12, 2026 | filing ↗ |
| Other events (8.01) | Apr 30, 2026 | filing ↗ |
| Officer/director changes (5.02) | Apr 24, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 24, 2026 | filing ↗ |
| Charter/bylaw changes (5.03) | Apr 14, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 14, 2026 | filing ↗ |
| Officer/director changes (5.02) | Apr 3, 2026 | filing ↗ |
| Shareholder vote (5.07) | Apr 3, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 3, 2026 | filing ↗ |
| Other events (8.01) | Feb 25, 2026 | filing ↗ |
| Earnings (2.02) | Feb 17, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 17, 2026 | filing ↗ |
| Officer/director changes (5.02) | Dec 18, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Dec 18, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 18, 2025 | filing ↗ |
| Earnings (2.02) | Dec 17, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 17, 2025 | filing ↗ |
| Delisting notice (3.01) | Nov 4, 2025 | filing ↗ |
| Earnings (2.02) | Oct 6, 2025 | filing ↗ |
| Other events (8.01) | Oct 6, 2025 | filing ↗ |