4
Changes in Ownership
Spero Therapeutics, Inc. Filed Acc 0001193125-26-038441
Chief Operating Officer sold 46,586 shares at an average $2.17 ($101,175)
- Chief Operating Officer acquired 68,000 shares (grant or award)
From the SEC's structured data for this filing
Trades in this filing
| Insider | Date | Transaction | Shares | Price | Value | Owned after | D/I |
|---|---|---|---|---|---|---|---|
| Keutzer Timothy Chief Operating Officer | 2026-02-02 | Grant or award | +68,000 | 807,744 | D | ||
| Keutzer Timothy Chief Operating Officer | 2026-02-02 | Sale | −18,891 | $2.20 | $41,560 | 788,853 | D |
| Keutzer Timothy Chief Operating Officer | 2026-02-03 | Sale | −24,224 | $2.14 | $51,839 | 764,629 | D |
| Keutzer Timothy Chief Operating Officer | 2026-02-04 | Sale | −3,471 | $2.24 | $7,775 | 761,158 | D |
| Derivatives | |||||||
| Keutzer Timothy Chief Operating Officer | 2026-02-02 | Grant or award · Stock Option (Right to Buy) | +137,000 | 137,000 | D | ||
| Open-market sales · 46,586 sh · avg $2.17 · $101,175 | |||||||
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