Jean Francois Formela, Director at Spero Therapeutics, Inc. (SPRO), bought 941,889 shares at $14.00 ($6.0M) on 2017-11-06, disclosed to the SEC on 2017-11-07.
High-signal trade — passes our conviction filters but the AI narrative is still being generated. Check back shortly.
Something here stands out, but not much.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $0.00 | 513,318 | $0 | 0.0% |
| 2 | $14.00 | 428,571 | $6.0M | 100.0% |
| Total | $6.37 avg | 941,889 | $6.0M | 100% |
| Filing → |
| KRRO | SELL | 2026-08-21 | $399K | — | Filing → |
| KRRO | SELL | 2026-08-13 | $30K | — | Filing → |
| KRRO | SELL | 2026-07-07 | $1.5M | — | Filing → |