Sionna Therapeutics SION

Cloonan Michael (Director) plans to sell 25,000 SION shares, about $601,500

Form
144
Filed
Importance
Routine
Document
Form 144
  1. Approximate sale date: Aug 26, 2025
  2. Broker: Morgan Stanley Smith Barney LLC Executive Financial Services
  3. Shares acquired by: Exercise of Stock Options
  4. 10b5-1 plan adopted: May 21, 2025

All of Cloonan Michael's insider filings, holdings and planned sales

Form 4s that likely executed this notice (SEC Tracker's match by person, company, dates and shares):

  • Sold 17,574 shares at $24.96 on Aug 26, 2025 · Form 4
  • Sold 7,426 shares at $25.01 on Aug 27, 2025 · Form 4

Written from the Form 144 on EDGAR. Check the filing before you rely on it.

Get an email when Sionna Therapeutics files

Only major filings: results, leadership changes, listing notices and other major events, each with the plain-English summary when we have one or the key facts and the EDGAR link. Routine insider filings never email. Confirm once; unsubscribe in one click.

Similar companies

Companies of similar size in SIC 2834 and related industry codes: the same peer list as the financial tables.