Timothy Keutzer serves as Executive at Spero Therapeutics, Inc., where they oversee executive responsibilities. Since joining the company, Timothy Keutzer has executed 15 insider transactions totaling $202.3K, demonstrating a bearish approach to their equity position. Their most recent transaction on Feb 6, 2026 involved selling 18,652 shares valued at $44.0K.
Timothy Keutzer currently holds 742,506 shares of Spero Therapeutics, Inc. (SPRO), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Timothy Keutzer has been a net seller of SPRO stock. They have purchased $0 and sold $202.3K worth of shares.
Timothy Keutzer's most recent insider trade was on Feb 6, 2026, when they sold 18,652 shares at $2.36 per share.
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| $2.24 |
| Discretionary |
| Feb 3, 2026 | SPRO | $51.8K | Sale | 24,224 | $2.14 | Discretionary |
| Feb 2, 2026 | SPRO | $0 | Award | 137,000 | $N/A | Discretionary |
| Feb 2, 2026 | SPRO | $41.6K | Sale | 18,891 | $2.20 | Discretionary |
| Feb 2, 2026 | SPRO | $0 | Award | 68,000 | $N/A | Discretionary |
| Aug 28, 2025 | SPRO | $3.3K | Sale | 1,695 | $1.97 | Discretionary |
| Aug 27, 2024 | SPRO | $3.0K | Sale | 2,213 | $1.35 | Discretionary |
| Feb 2, 2024 | SPRO | $42.1K | Sale | 30,971 | $1.36 | Discretionary |
| Feb 1, 2024 | SPRO | $0 | Award | 239,731 | $N/A | Discretionary |
| Aug 28, 2023 | SPRO | $2.3K | Sale | 1,854 | $1.26 | Discretionary |
| Feb 2, 2023 | SPRO | $6.3K | Sale | 3,394 | $1.86 | Discretionary |
| Feb 1, 2023 | SPRO | $0 | Award | 265,957 | $N/A | Discretionary |
| Feb 1, 2022 | SPRO | $0 | Award | 38,014 | $N/A | Discretionary |
| Aug 26, 2021 | SPRO | $0 | Award | 24,067 | $N/A | Discretionary |