Derek M. Meisner serves as Executive at X4 Pharmaceuticals, Inc, where they oversee executive responsibilities. Since joining the company, Derek M. Meisner has executed 28 insider transactions totaling $272.5K, demonstrating a bearish approach to their equity position. Their most recent transaction on Jan 28, 2026 involved exercising options for 2,671 shares valued at $0.
Derek M. Meisner currently holds 82,544 shares of X4 Pharmaceuticals, Inc (XFOR), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Derek M. Meisner has been a net seller of XFOR stock. They have purchased $0 and sold $272.5K worth of shares.
Derek M. Meisner's most recent insider trade was on Jan 28, 2026, when they sold 2,671 shares at $0.00 per share.
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| $3.00 |
| Discretionary |
| Jan 28, 2026 | ABOS | $4.9K | Option Exercise | 2,671 | $1.85 | Discretionary |
| Jan 26, 2026 | ABOS | $0 | Option Exercise | 15,085 | $N/A | Discretionary |
| Jan 26, 2026 | ABOS | $45.3K | Sale | 15,085 | $3.00 | Discretionary |
| Jan 26, 2026 | ABOS | $27.9K | Option Exercise | 15,085 | $1.85 | Discretionary |
| Jan 23, 2026 | ABOS | $10.7K | Sale | 5,633 | $1.90 | Discretionary |
| Jan 22, 2026 | ABOS | $1.9K | Sale | 1,054 | $1.84 | Discretionary |
| Jan 21, 2026 | ABOS | $4.1K | Sale | 2,247 | $1.81 | Discretionary |
| Jan 16, 2026 | ABOS | $0 | Award | 148,700 | $N/A | Discretionary |
| Jan 16, 2026 | ABOS | $0 | Award | 99,133 | $N/A | Discretionary |
| Jan 19, 2024 | ABOS | $31.1K | Sale | 8,933 | $3.48 | Planned |
| Jan 2, 2024 | ABOS | $0 | Award | 91,000 | $N/A | Discretionary |
| Jan 17, 2023 | ABOS | $0 | Award | 26,800 | $N/A | Discretionary |
| Aug 17, 2022 | XFOR | $0 | Sale | 8,334 | $N/A | Discretionary |
| Jun 24, 2022 | XFOR | $0 | Sale | 4,166 | $N/A | Discretionary |
| Jun 16, 2022 | XFOR | $0 | Sale | 4,166 | $N/A | Discretionary |
| Mar 1, 2022 | XFOR | $0 | Award | 105,000 | $N/A | Discretionary |
| Feb 11, 2022 | XFOR | $0 | Sale | 15,909 | $N/A | Discretionary |
| Aug 17, 2021 | XFOR | $42.5K | Sale | 8,332 | $5.10 | Discretionary |
| Jun 24, 2021 | XFOR | $29.2K | Sale | 4,166 | $7.00 | Discretionary |
| Jun 23, 2021 | XFOR | $0 | Award | 12,500 | $N/A | Discretionary |
| Jun 15, 2021 | XFOR | $32.7K | Sale | 4,166 | $7.84 | Discretionary |
| Jun 15, 2021 | XFOR | $0 | Award | 12,500 | $N/A | Discretionary |
| Mar 24, 2021 | XFOR | $0 | Award | 47,728 | $N/A | Discretionary |
| Sep 9, 2020 | XFOR | $67.1K | Sale | 8,334 | $8.05 | Discretionary |
| Aug 17, 2020 | XFOR | $0 | Award | 12,500 | $N/A | Discretionary |
| Aug 14, 2020 | XFOR | $0 | Award | 12,500 | $N/A | Discretionary |