Sionna Therapeutics, Inc. (SION) — Multiple Insider Sales — Jul 2, 2026

2 insiders at Sionna Therapeutics, Inc. (SION) sold shares totaling approximately $10.54M.

• Advisors Llc Orbimed (Director) — 115,844 shares at $45.50/share ($5.27M) • Capital Gp Viii Llc Orbimed (Director) — 115,844 shares at $45.50/share ($5.27M)

While insider sales can occur for many reasons — including diversification, tax planning, or personal liquidity needs — clustered selling by multiple insiders may warrant attention.