Mark Christianson serves as Executive at NEUROONE MEDICAL TECHNOLOGIES Corp, where they oversee executive responsibilities. Since joining the company, Mark Christianson has executed 42 insider transactions totaling $518.7K, demonstrating a bearish approach to their equity position. Their most recent transaction on Feb 18, 2026 involved selling 1,812 shares valued at $1.2K.
Mark Christianson currently holds 228,920 shares of NEUROONE MEDICAL TECHNOLOGIES Corp (OSOK), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Mark Christianson has been a net seller of OSOK stock. They have purchased $0 and sold $518.7K worth of shares.
Mark Christianson's most recent insider trade was on Feb 18, 2026, when they sold 1,812 shares at $0.68 per share.
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| $0.89 |
| Discretionary |
| Sep 5, 2025 | NMTC | $22.2K | Sale | 30,000 | $0.74 | Discretionary |
| Jun 30, 2025 | NMTC | $172 | Payment | 253 | $0.68 | Discretionary |
| Aug 31, 2024 | NMTC | $72 | Payment | 90 | $0.80 | Discretionary |
| Jul 31, 2024 | NMTC | $68 | Payment | 90 | $0.75 | Discretionary |
| Jun 6, 2024 | NMTC | $1.9K | Sale | 2,189 | $0.88 | Discretionary |
| Jun 5, 2024 | NMTC | $22.7K | Sale | 25,800 | $0.88 | Discretionary |
| May 31, 2024 | NMTC | $84 | Payment | 90 | $0.93 | Discretionary |
| Apr 30, 2024 | NMTC | $102 | Payment | 90 | $1.13 | Discretionary |
| Apr 21, 2024 | NMTC | $2.3K | Payment | 2,030 | $1.15 | Discretionary |
| Mar 31, 2024 | NMTC | $108 | Payment | 90 | $1.20 | Discretionary |
| Feb 29, 2024 | NMTC | $109 | Payment | 90 | $1.21 | Discretionary |
| Feb 18, 2024 | NMTC | $0 | Award | 25,000 | $N/A | Discretionary |
| Jan 31, 2024 | NMTC | $113 | Payment | 90 | $1.25 | Discretionary |
| Dec 31, 2023 | NMTC | $142 | Payment | 90 | $1.58 | Discretionary |
| Dec 27, 2023 | NMTC | $45.9K | Sale | 31,445 | $1.46 | Discretionary |
| Dec 26, 2023 | NMTC | $9.2K | Sale | 6,848 | $1.35 | Discretionary |
| Dec 22, 2023 | NMTC | $2.5K | Sale | 1,800 | $1.40 | Discretionary |
| Dec 21, 2023 | NMTC | $13.9K | Sale | 9,907 | $1.40 | Discretionary |
| Nov 30, 2023 | NMTC | $131 | Payment | 90 | $1.45 | Discretionary |
| Nov 2, 2023 | NMTC | $145 | Payment | 90 | $1.61 | Discretionary |
| Oct 31, 2023 | NMTC | $81 | Payment | 90 | $0.90 | Discretionary |
| Sep 30, 2023 | NMTC | $80 | Payment | 90 | $0.89 | Discretionary |
| Aug 31, 2023 | NMTC | $77 | Payment | 90 | $0.85 | Discretionary |
| Jul 31, 2023 | NMTC | $92 | Payment | 90 | $1.02 | Discretionary |
| Jun 30, 2023 | NMTC | $108 | Payment | 90 | $1.20 | Discretionary |
| May 31, 2023 | NMTC | $109 | Payment | 90 | $1.21 | Discretionary |
| Apr 30, 2023 | NMTC | $139 | Payment | 90 | $1.54 | Discretionary |
| Apr 21, 2023 | NMTC | $0 | Award | 14,000 | $N/A | Discretionary |