Peter A. Thompson, a director at Sionna Therapeutics (NASDAQ:SION), sold common stock valued at $4,493 on May 27, 2026.
The transaction involved 101 shares sold at $44.49 each. The stock now trades at $42.81, but has surged 213% over the past year.
The sale was executed under a Rule 10b5-1 trading plan. Thompson indirectly holds 2,671,721 shares of Sionna common stock.
The company is valued at $1.93 billion and holds more cash than debt on its balance sheet.
The shares were held indirectly by OrbiMed Private Investments VIII. Thompson disclaims beneficial ownership except for his pecuniary interest.
In recent news, Sionna reported first-quarter 2026 earnings with $289.9 million in cash, sufficient to fund operations until 2028. Analysts have mixed opinions on the stock.











