OrbiMed Advisors LLC's Form 4 filing
Sionna Therapeutics, Inc. (SION) · filed Apr 21, 2026
- Accession no.
- 0000947871-26-000458
- Filed
- Apr 21, 2026, 8:40 PM ET
- Trade date
- Apr 17-18, 2026
- Filing delay
- 4 days
- Rule 10b5-1 plan
- Checked
This filing lists 2 non-derivative transactions. Open-market sales total $2.47M. 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 |
|---|---|
| OrbiMed Advisors LLCCIK 0001055951 | Director |
| OrbiMed Capital GP VIII LLCCIK 0001845804 | 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 |
|---|---|---|---|---|---|---|---|---|
| Apr 17, 2026 | Common Stock | SSaleDisposed | −52,397 | $44.68 | −$2,341,097.96 | 2,967,722 | Indirect | Duplicate filing |
| Apr 18, 2026 | Common Stock | SSaleDisposed | −2,948 | $44.52 | −$131,244.96 | 2,964,774 | Indirect | Duplicate filing |
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.