Insider · CIK 0001242616
Frank E Thomas
Files at: SPRO, LRMR, AMAG. On EDGAR ↗
Reported trades — common stock
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Jun 23, 2026 AForm 4 → | Jun 25, 6:59 pm EDT | Spero Therapeutics, Inc.SPRO | 10,000 | — | — | 85,000 | — |
Reported trades — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Jun 23, 2026 AForm 4 → | Jun 25, 6:59 pm EDT | Spero Therapeutics, Inc.SPRO | 20,000 | — | — | 20,000 | — |