Steven Pfanstiel serves as Executive at MARINUS PHARMACEUTICALS INC, where they oversee executive responsibilities. Since joining the company, Steven Pfanstiel has executed 12 insider transactions totaling $62.8K, demonstrating a bearish approach to their equity position. Their most recent transaction on Dec 30, 2025 involved receiving (via award) 170,212 shares valued at $0.
Steven Pfanstiel currently holds 570,212 shares of MARINUS PHARMACEUTICALS INC (MRNS), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Steven Pfanstiel has been a net seller of MRNS stock. They have purchased $0 and sold $62.8K worth of shares.
Steven Pfanstiel's most recent insider trade was on Dec 30, 2025, when they sold 170,212 shares at $0.00 per share.
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| $N/A |
| Discretionary |
| Jul 15, 2025 | STIM | $0 | Award | 200,000 | $N/A | Discretionary |
| Aug 5, 2024 | MRNS | $5.3K | Sale | 4,657 | $1.13 | Discretionary |
| Jun 18, 2024 | MRNS | $0 | Award | 12,733 | $N/A | Discretionary |
| Feb 16, 2024 | MRNS | $30.8K | Sale | 3,092 | $9.97 | Discretionary |
| Jan 18, 2024 | MRNS | $0 | Award | 25,465 | $N/A | Discretionary |
| Aug 8, 2023 | MRNS | $125 | Sale | 14 | $8.93 | Planned |
| Aug 7, 2023 | MRNS | $26.6K | Sale | 2,790 | $9.54 | Planned |
| Jan 26, 2023 | MRNS | $0 | Award | 28,130 | $N/A | Discretionary |
| May 24, 2022 | MRNS] | $0 | Award | 7,448 | $N/A | Discretionary |
| Feb 4, 2022 | MRNS | $0 | Award | 16,550 | $N/A | Discretionary |