Sionna Therapeutics Files Form 4
Ticker: SION · Form: 4 · Filed: Apr 16, 2026
Sentiment: neutral
Topics: insider-filing, ownership-change
TL;DR
Sionna Therapeutics filed a Form 4 on 4/16/26 regarding ownership changes.
AI Summary
On April 16, 2026, Sionna Therapeutics, Inc. filed a Form 4, indicating a change in beneficial ownership of securities. The filing pertains to the period of report ending April 14, 2026. The issuer, Sionna Therapeutics, Inc., is located at 21 Hickory Drive, Suite 500, Waltham, MA 02451.
Why It Matters
Form 4 filings disclose changes in insider ownership, which can signal confidence or concerns from company executives and major shareholders.
Risk Assessment
Risk Level: low — This filing is a routine disclosure of changes in beneficial ownership and does not inherently indicate significant risk.
Key Players & Entities
- Sionna Therapeutics, Inc. (company) — Issuer
- Thompson Peter A. (person) — Reporting Person
FAQ
What type of filing is this?
This is a Form 4 filing, a Statement of changes in beneficial ownership of securities.
When was the filing accepted by the SEC?
The filing was accepted on 2026-04-16.
What is the period of report for this filing?
The period of report is 2026-04-14.
What is the business address of Sionna Therapeutics, Inc.?
The business address is 21 Hickory Drive, Suite 500, Waltham MA 02451.
Who is listed as the reporting person?
Peter A. Thompson is listed as the reporting person.
Filing Details
This Statement of Changes in Beneficial Ownership (Form 4) was filed with the SEC on April 16, 2026 by Thompson Peter A. regarding Sionna Therapeutics, Inc. (SION). Form 4 filings disclose purchases, sales, or other changes in ownership by company insiders such as officers, directors, and major shareholders.