Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
Common stock purchase or sale:
| Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
| 2026-02-06 Sale | 2026-02-09 9:09 pm | Spero Therapeutics Inc. | SPRO | Keutzer Timothy Chief Operating Officer | 18,652 | $2.36 | $44,019 | 742,506 (Direct) | View |
| 2026-02-02 Sale | 2026-02-05 06:30 am | Spero Therapeutics Inc. | SPRO | Keutzer Timothy Chief Operating Officer | 46,586 | $2.1718 | $101,175 | 898,158 (Direct) | View |
| 2025-08-28 Sale | 2025-09-03 06:02 am | Spero Therapeutics Inc. | SPRO | Keutzer Timothy Chief Operating Officer | 1,695 | $1.97 | $3,339 | 739,744 (Direct) | View |
| 2025-02-05 Sale | 2025-02-05 9:04 pm | Spero Therapeutics Inc. | SPRO | Keutzer Timothy Chief Operating Officer | 56,537 | $0.78 | $44,099 | 741,439 (Direct) | View |
| 2024-08-27 Sale | 2024-08-29 6:42 pm | Spero Therapeutics Inc. | SPRO | Keutzer Timothy Chief Operating Officer | 2,213 | $1.35 | $2,988 | 531,837 (Direct) | View |
| 2024-02-02 Sale | 2024-02-05 8:53 pm | Spero Therapeutics Inc. | SPRO | Keutzer Timothy Chief Operating Officer | 30,971 | $1.36 | $42,121 | 534,050 (Direct) | View |
| 2023-08-28 Sale | 2023-08-30 4:23 pm | Spero Therapeutics Inc. | SPRO | Keutzer Timothy Chief Development Officer | 1,854 | $1.26 | $2,336 | 325,290 (Direct) | View |
| 2023-02-02 Sale | 2023-02-03 7:43 pm | Spero Therapeutics Inc. | SPRO | Keutzer Timothy Chief Operating Officer | 3,394 | $1.86 | $6,313 | 327,144 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2026-02-02 Option Award | 2026-02-05 06:30 am | N/A 2026-02-02 | Spero Therapeutics Inc. | SPRO | Keutzer Timothy Chief Operating Officer | 205,000 | $0 | 898,158 (Direct) | View |
| 2025-02-03 Option Award | 2025-02-05 9:04 pm | N/A N/A | Spero Therapeutics Inc. | SPRO | Keutzer Timothy Chief Operating Officer | 266,139 | $0 | 741,439 (Direct) | View |
| 2024-02-01 Option Award | 2024-02-05 8:53 pm | N/A N/A | Spero Therapeutics Inc. | SPRO | Keutzer Timothy Chief Operating Officer | 239,731 | $0 | 534,050 (Direct) | View |
| 2023-02-01 Option Award | 2023-02-03 7:43 pm | N/A N/A | Spero Therapeutics Inc. | SPRO | Keutzer Timothy Chief Operating Officer | 265,957 | $0 | 327,144 (Direct) | View |
| 2022-02-01 Option Award | 2022-02-03 4:18 pm | N/A 2032-02-01 | Spero Therapeutics Inc. | SPRO | Keutzer Timothy Chief Development Officer | 91,204 | $0 | 117,771 (Direct) | View |
| 2021-08-26 Option Award | 2021-08-30 4:15 pm | N/A N/A | Spero Therapeutics Inc. | SPRO | Keutzer Timothy Chief Development Officer | 24,067 | $0 | 26,567 (Direct) | View |