Timothy Keutzer, Chief Operating Officer at Spero Therapeutics, Inc. (SPRO), sold 46,586 shares at $2.20 ($101K) on 2026-02-02, disclosed to the SEC on 2026-02-05.
Seasonal sale ($101k) by Chief Operating Officer — this insider has traded SPRO in February in at least three consecutive prior years. Pattern-driven, low signal.
Nothing distinguishes this filing.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $2.20 | 18,891 | $42K | 41.1% |
| 2 | $2.14 | 24,224 | $52K | 51.2% |
| 3 | $2.24 | 3,471 | $8K | 7.7% |
| Total | $2.17 avg | 46,586 | $101K | 100% |
| Filing → |
| SPRO | SELL | 2025-02-05 | $44K | — | Filing → |
| SPRO | SELL | 2024-08-29 | $3K | — | Filing → |
| SPRO | SELL | 2024-02-05 | $42K | — | Filing → |