The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Keutzer Timothy since 2023.
This trader's CIK number is 1798155.
At the time of last reporting, Keutzer Timothy was the Chief Operating Officer of Spero Therapeutics, Inc.. (stock ticker symbol SPRO).
Also see all insider trading activities at Spero Therapeutics, Inc..
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2025 | SPRO | 0 | $0 | 58,232 | $47,437 | 0 | $0 |
| 2024 | SPRO | 0 | $0 | 33,184 | $45,107 | 0 | $0 |
| 2023 | SPRO | 0 | $0 | 5,248 | $8,648 | 0 | $0 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-08-28 | SPRO | Sale | 1,695 | 1.97 | 3,339 |
| 2025-02-05 | SPRO | Sale | 56,537 | .78 | 44,098 |
| 2024-08-27 | SPRO | Sale | 2,213 | 1.35 | 2,987 |
| 2024-02-02 | SPRO | Sale | 30,971 | 1.36 | 42,120 |
| 2023-08-28 | SPRO | Sale | 1,854 | 1.26 | 2,336 |
| 2023-02-02 | SPRO | Sale | 3,394 | 1.86 | 6,312 |
Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Keutzer Timothy (Chief Operating Officer of Spero Therapeutics, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.