Aoife Brennan serves as Executive at SYNLOGIC, INC., where they oversee executive responsibilities. Since joining the company, Aoife Brennan has executed 15 insider transactions totaling $139.4K, demonstrating a bearish approach to their equity position. Their most recent transaction on Jan 6, 2026 involved receiving (via award) 700,000 shares valued at $0.
Aoife Brennan currently holds 700,000 shares of SYNLOGIC, INC. (SYBX), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Aoife Brennan has been a net seller of SYBX stock. They have purchased $0 and sold $139.4K worth of shares.
Aoife Brennan's most recent insider trade was on Jan 6, 2026, when they sold 700,000 shares at $0.00 per share.
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| $1.22 |
| Discretionary |
| Jun 27, 2025 | CLYM | $0 | Option Exercise | 68,750 | $N/A | Discretionary |
| Jun 9, 2023 | FGEN | $33.4K | Sale | 1,994 | $16.74 | Planned |
| Jun 9, 2023 | FGEN | $48.0K | Sale | 2,739 | $17.52 | Planned |
| Jun 7, 2023 | FGEN | $0 | Award | 8,289 | $N/A | Planned |
| Apr 3, 2023 | SYBX | $11.0K | Sale | 19,042 | $0.58 | Planned |
| Jun 16, 2022 | FGEN | $0 | Award | 15,777 | $N/A | Discretionary |
| Apr 4, 2022 | SYBX | $21.8K | Sale | 8,894 | $2.45 | Discretionary |
| Feb 4, 2022 | SYBX | $0 | Award | 106,920 | $N/A | Discretionary |
| May 26, 2021 | FGEN | $0 | Award | 4,700 | $N/A | Discretionary |
| Mar 10, 2021 | SYBX | $0 | Award | 71,250 | $N/A | Discretionary |
| Aug 5, 2020 | FGEN | $0 | Award | 3,914 | $N/A | Discretionary |
| Mar 10, 2020 | SYBX | $0 | Award | 46,300 | $N/A | Discretionary |
| Sep 23, 2019 | SYBX | $0 | Award | 8,000 | $N/A | Discretionary |