Updated Jul 16, 2026 · Last SEC filing 2026-07-02
NEUROONE MEDICAL TECHNOLOGIES Corp (NMTC) has filed 1 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-02. 5 Form 8-K material event filings were reported by NMTC in the last 90 days. 1 Form 144 notices of proposed sale were filed for NMTC stock. InsiderAlpha tracks every NMTC SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SIC classification | Surgical & Medical Instruments & Apparatus (SIC 3841) |
|---|---|
| SEC CIK | 0001500198 |
| Form 4 filings (90d) | 1 |
|---|---|
| Form 8-K filings (90d) | 5 |
| Form 144 notices (90d) | 1 |
| Latest Form 4 filing | 2026-07-02 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Christianson Mark | Market Development Director | S — Open-market sale | 10.0K | $3.18 | $32K | SEC | |
| MATHIESEN JEFFREY S | Director | A — Grant or award | 41.9K | $0.00 | — | SEC | |
| Andrle Edward | Director | A — Grant or award | 41.9K | $0.00 | — | SEC | |
| BUCKMAN PAUL | Director | A — Grant or award | 41.9K | $0.00 | — | SEC | |
| Mills Jason Richard | Director | A — Grant or award | 41.9K | $0.00 | — | SEC | |
| Rosa David A | CEO and President | F — Tax withholding / forfeiture | 2.5K | $0.78 | $2K | SEC | |
| Mertens Steve | Chief Technology Officer | F — Tax withholding / forfeiture | 906 | $0.78 | $704 | SEC | |
| Christianson Mark | Business Development Director | F — Tax withholding / forfeiture | 253 | $0.78 | $197 | SEC | |
| Christianson Mark | Business Development Director | S — Open-market sale | 15.4K | $0.74 | $11K | SEC | |
| Christianson Mark | Business Development Director | S — Open-market sale | 100 | $0.80 | $80 | SEC | |
| Christianson Mark | Business Development Director | S — Open-market sale | 817 | $0.80 | $654 | SEC | |
| Christianson Mark | Business Development Director | S — Open-market sale | 2.1K | $0.80 | $2K | SEC | |
| Christianson Mark | Business Development Director | S — Open-market sale | 11.6K | $0.80 | $9K | SEC | |
| Wambeke David J. | Chief Business Officer | P — Open-market purchase | 1.00M | $0.67 | $670K | SEC | |
| Mertens Steve | Chief Technology Officer | F — Tax withholding / forfeiture | 7.4K | $0.68 | $5K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for NEUROONE MEDICAL TECHNOLOGIES Corp (NMTC). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Christianson Mark | 1 | $32K |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in NMTC insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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