Thompson Peter A.'s Form 4 filing
Sionna Therapeutics, Inc. (SION) · filed May 11, 2026
- Accession no.
- 0000947871-26-000518
- Filed
- May 11, 2026
- Trade date
- May 7-11, 2026
- Filing delay
- 4 days
- Rule 10b5-1 plan
- Checked
This filing lists 3 non-derivative transactions. Open-market sales total $13.4M. It was filed 4 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 |
|---|---|
| Thompson Peter A.CIK 0001357522 | Director |
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 |
|---|---|---|---|---|---|---|---|---|
| May 7, 2026 | Common Stock | SSaleDisposed | −48,546 | $44.61 | −$2,165,637.06 | 2,916,228 | Indirect | |
| May 8, 2026 | Common Stock | SSaleDisposed | −59,767 | $44.58 | −$2,664,412.86 | 2,856,461 | Indirect | |
| May 11, 2026 | Common Stock | SSaleDisposed | −184,639 | $46.22 | −$8,534,014.58 | 2,671,822 | Indirect |
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.