Bruce Booth serves as Executive at ZAFGEN, INC., where they oversee executive responsibilities. Since joining the company, Bruce Booth has executed 161 insider transactions totaling $177.9M, demonstrating a bearish approach to their equity position. Their most recent transaction on Oct 13, 2025 involved selling 9,245 shares valued at $280.3K.
Bruce Booth currently holds 685,393 shares of ZAFGEN, INC. (ZFGN), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Bruce Booth has been a net seller of ZFGN stock. They have purchased $36.6M and sold $141.3M worth of shares.
Bruce Booth's most recent insider trade was on Oct 13, 2025, when they sold 9,245 shares at $30.32 per share.
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| $30.32 |
| Discretionary |
| Oct 10, 2025 | SION | $105.3K | Sale | 3,511 | $29.98 | Discretionary |
| Oct 10, 2025 | SION | $501.5K | Sale | 16,727 | $29.98 | Discretionary |
| Oct 6, 2025 | SION | $292.1K | Sale | 9,753 | $29.95 | Discretionary |
| Oct 6, 2025 | SION | $61.3K | Sale | 2,047 | $29.95 | Discretionary |
| Oct 3, 2025 | SION | $196.4K | Sale | 6,548 | $30.00 | Discretionary |
| Oct 3, 2025 | SION | $935.9K | Sale | 31,198 | $30.00 | Discretionary |
| Oct 1, 2025 | SION | $4.9K | Sale | 165 | $29.95 | Discretionary |
| Oct 1, 2025 | SION | $1.0K | Sale | 35 | $29.95 | Discretionary |
| Sep 30, 2025 | SION | $64.6K | Sale | 2,149 | $30.06 | Discretionary |
| Sep 30, 2025 | SION | $307.8K | Sale | 10,239 | $30.06 | Discretionary |
| Sep 29, 2025 | SION | $1.6M | Sale | 54,637 | $30.09 | Discretionary |
| Sep 29, 2025 | SION | $345.1K | Sale | 11,468 | $30.09 | Discretionary |
| Aug 5, 2025 | VIGL | $0 | Disposition | 5,000 | $N/A | Discretionary |
| Aug 5, 2025 | VIGL | $0 | Disposition | 1,027,978 | $N/A | Discretionary |
| Aug 5, 2025 | VIGL | $0 | Disposition | 4,808,896 | $N/A | Discretionary |
| Jul 9, 2024 | KYMR | $869.7K | Sale | 24,449 | $35.57 | Planned |
| Jul 9, 2024 | KYMR | $1.0M | Sale | 28,718 | $36.40 | Planned |
| Jul 9, 2024 | KYMR | $1.6M | Sale | 41,763 | $37.41 | Planned |
| Jul 9, 2024 | KYMR | $7.1M | Sale | 183,868 | $38.48 | Planned |
| Jul 9, 2024 | KYMR | $794.5K | Sale | 20,238 | $39.26 | Planned |
| Jul 9, 2024 | KYMR | $1.5M | Sale | 38,606 | $38.48 | Planned |
| Jul 9, 2024 | KYMR | $328.0K | Sale | 8,769 | $37.41 | Planned |
| Jul 9, 2024 | KYMR | $219.5K | Sale | 6,030 | $36.40 | Planned |
| Jul 9, 2024 | KYMR | $182.6K | Sale | 5,133 | $35.57 | Planned |
| Jul 9, 2024 | KYMR | $3.8M | Sale | 96,386 | $39.26 | Planned |
| Jun 13, 2024 | KYMR | $294.9K | Sale | 8,430 | $34.98 | Planned |
| Jun 13, 2024 | KYMR | $61.9K | Sale | 1,770 | $34.98 | Planned |
| Jun 12, 2024 | KYMR | $418.5K | Sale | 11,838 | $35.35 | Planned |