Timothy Keutzer, Chief Operating Officer at Spero Therapeutics, Inc. (SPRO), sold 56,537 shares at $0.78 ($44K) on 2025-02-05, disclosed to the SEC on 2025-02-05.
Seasonal sale ($44k) 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 | $0.78 | 3,974 | $3K | 7.0% |
| 2 | $0.78 | 24,920 | $19K | 44.1% |
| 3 | $0.78 | 27,643 | $22K | 48.9% |
| Total | $0.78 avg | 56,537 | $44K | 100% |
| Filing → |
| SPRO | SELL | 2025-09-03 | $3K | — | Filing → |
| SPRO | SELL | 2024-08-29 | $3K | — | Filing → |
| SPRO | SELL | 2024-02-05 | $42K | — | Filing → |