4
Changes in Ownership
Spero Therapeutics, Inc. Filed Acc 0001193125-26-283209
Director acquired 10,000 shares (grant or award)
From the SEC's structured data for this filing
Trades in this filing
| Insider | Date | Transaction | Shares | Price | Value | Owned after | D/I |
|---|---|---|---|---|---|---|---|
| THOMAS FRANK E Director | 2026-06-23 | Grant or award | +10,000 | 85,000 | D | ||
| Derivatives | |||||||
| THOMAS FRANK E Director | 2026-06-23 | Grant or award · Stock Option (right to buy) | +20,000 | 20,000 | D | ||
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