Rajavelu Esther's Form 4 filing
Spero Therapeutics, Inc. (SPRO) · filed Nov 12, 2025
- Accession no.
- 0001193125-25-278370
- Filed
- Nov 12, 2025
- Trade date
- Nov 7, 2025
- Filing delay
- 5 days
- Rule 10b5-1 plan
- Not checked
This filing lists 1 non-derivative transaction. Open-market sales total $95.4K. It was filed 5 days after the trade.
Reporting owners
A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.
| Owner | Relationship to the company |
|---|---|
| Rajavelu EstherCIK 0001903716 | Officer (See Remarks) |
Non-derivative securities (Table I)
Acquisitions and disposals of common stock and similar shares, one row per line on the filing.
| Trade date | Security | Transaction | Shares | Price | Value | Shares after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Nov 7, 2025 | Common Stock | SSaleDisposed | −40,270 | $2.37 | −$95,439.9 | 869,450 | Direct |
Footnotes and remarks
Livermore keeps the footnotes that transaction prices refer to, all footnotes of amendments (Form 4/A) and the filing's remarks. Other footnotes, such as how indirect holdings are held or the details of a trading plan, are only in the original on SEC EDGAR.
No transaction price on this filing refers to a footnote.
Remarks
Chief Executive Officer, Chief Financial Officer and Chief Business Officer