SEC Form 4 research
| Issuer | Spero Therapeutics, Inc. |
|---|---|
| Tickers | SPRO |
| Reporting owners | 34 |
| Officers and directors | 11 |
| Last public filing | 2026-08-07 |
| Available | Trade date | Reporting owners | Code | Shares | Price | Reported value |
|---|---|---|---|---|---|---|
| 2026-08-06 | 2026-08-03 | Zack Debra | A | 162,311 | $0 | Not reported |
| 2026-08-06 | 2026-08-03 | Zack Debra | A | 324,675 | $0 | Not reported |
Public filing evidence only. NexusTrade's simulated follower strategies are hypothetical, modeled results — not live trading returns and not investment advice.