Insider Transactions Reported by 18 Insiders of Sionna Therapeutics, Inc.

Symbol
SION on Nasdaq
Location
Waltham, MA

Insiders trading volume in the past year

Sionna Therapeutics, Inc. executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
ORBIMED ADVISORS LLC Director $158,671,730 -$6,383,642 -3.9% 24 Dec 2025
Peter A. Thompson Director $158,671,730 -$6,383,642 -3.9% 24 Dec 2025
Bruce Booth Director $109,099,824 -$22,085,832 -17% 21 Oct 2025
TPG GP A, LLC 10%+ Owner $106,840,198 +$950,400 +0.9% 27 Jun 2025
Michael Cloonan President & CEO, Director $20,421,367 -$6,327,622 -24% 02 Jan 2026
RA CAPITAL MANAGEMENT, L.P. Director, 10%+ Owner $6,281,803 -$21,463,466 -77% 20 Nov 2025
Elena Ridloff Cfo $966,382 -$1,966,634 -67% 02 Jan 2026
Jennifer Fitzpatrick Chief Legal Officer $0 -$652,310 -100% 02 Jan 2026
Harold Edward Fleming Director 12 Jun 2025
Laurie Stelzer Director 12 Jun 2025
Charlotte McKee Chief Medical Officer 02 Jan 2026
Marcella K. Ruddy Director 12 Jun 2025
Caroline Stark Beer Chief Business Officer 02 Jan 2026
Joanne L. Viney Director 12 Jun 2025
Paul J. Clancy Director 12 Jun 2025
Joshua Resnick Director 12 Jun 2025
Atlas Venture Fund XI, L.P. 10%+ Owner 10 Feb 2025
Lucian Iancovici Director 06 Feb 2025

Recent Insider Transactions by Companies or Individuals for Sionna Therapeutics, Inc.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.