According to recent filings covering the 90 days ending February 19, 2026, the three most significant insider holders at Neuroone Medical Technologies are Ceo And President David A Rosa (1.15Mn shares), Chief Financial Officer Ronald W. Mcclurg (444.12K shares), Business Development Director Mark Christianson (230.73K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| David A Rosa | Ceo And President | 1,153,915 | 05 Jan, 2026 |
| Ronald W. Mcclurg | Chief Financial Officer | 444,117 | 07 Apr, 2025 |
| Mark Christianson | Business Development Director | 230,732 | 05 Jan, 2026 |
| Steve Mertens | Chief Technology Officer | 160,423 | 05 Jan, 2026 |
| Paul Buckman | 136,804 | 19 Feb, 2025 | |
| Jeffrey S Mathiesen | 114,414 | 19 Feb, 2025 | |
| Edward Andrle | 92,003 | 19 Feb, 2025 | |
| Christopher Volker | Chief Operating Officer | 75,000 | 26 Dec, 2023 |
| Jason Richard Mills | 7,758 | 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 |
|---|---|---|---|---|---|---|---|---|
| 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 | 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 |
| 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 |
| 05 Sep, 2025 | Mark Christianson | Common Stock | D | 30,000 | $0.74 | 231,238 | D | S |
| 30 Jun, 2025 | David A Rosa | Common Stock | D | 2,458 | $0.68 | 1,158,831 | D | F |
| 30 Jun, 2025 | Mark Christianson | Common Stock | D | 253 | $0.68 | 261,238 | D | F |
| 30 Jun, 2025 | Steve Mertens | Common Stock | D | 906 | $0.68 | 162,235 | D | F |
| 04 Jun, 2025 | Mark Christianson | Common Stock | D | 10,000 | $0.58 | 261,491 | D | S |
| 22 May, 2025 | Mark Christianson | Common Stock | D | 8,967 | $0.62 | 271,491 | D | S |
| 21 May, 2025 | Mark Christianson | Common Stock | D | 14 | $0.65 | 280,458 | D | S |
| 20 May, 2025 | Mark Christianson | Common Stock | D | 3,013 | $0.66 | 280,472 | D | S |
| 19 May, 2025 | Mark Christianson | Common Stock | D | 8,006 | $0.67 | 283,485 | D | S |
| 04 Apr, 2025 | David A Rosa | Common Stock | A | 100,000 | $0.50 | 1,161,289 | D | P |
| 04 Apr, 2025 | Ronald W. Mcclurg | Common Stock | A | 200,000 | $0.50 | 444,117 | D | P |
| 04 Apr, 2025 | Ronald W. Mcclurg | - | - | 444,117 | D | |||
| 31 Mar, 2025 | David A Rosa | Common Stock | D | 2,458 | $0.85 | 1,061,289 | D | F |