Michael Cloonan

President & CEO, Director, Sionna Therapeutics, Inc.

Bought, 12 months

$0.0M

Sold, 12 months

$0.0M

Companies

Latest trade

Oct 21, 2025

Companies

Sionna Therapeutics, Inc.President & CEO, Director −$2.3M

Trades

SION Sold 43,373 shares at $35.26 · planned $1.5M Oct 21

SION Sold 10,425 shares at $31.51 · planned $0.3M Oct 16

SION Sold 14,775 shares at $31.11 · planned $0.5M Oct 15

Open-market trades from SEC Form 4 only: no grants, option exercises or gifts. People are matched by the name on their filings, so two people with the same name share this page. For information only — not investment advice.