Giuseppe Accogli

Money Moves

Leading the largest deal in company history

For decades, people with hereditary angioedema have had only one option when an attack hits: injecting themselves, often in panic, to stop swelling that can close their airway. Last summer, a pill changed that. On Tuesday, Italian drugmaker Chiesi Farmaceutici agreed to buy the pill's maker, KalVista Pharmaceuticals, for about $1.9 billion in cash—the largest acquisition in Chiesi's 90-year history.

Updated 2 hours ago