MRK · News · 20260808N

Geographic Market Commentary

Merck & Co., Inc. · 2026-08-08 · Importance 23 · Surprise 42

Merck’s Ervebo Ebola vaccine is being deployed more broadly in response to a worsening outbreak in eastern Democratic Republic of Congo. The outbreak involves the Bundibugyo strain and has produced nearly 4,000 cases and more than 1,800 deaths over 12 weeks. Observational evidence from Congo and Uganda is supporting expanded use despite the lack of formal proof of efficacy against this strain.

Key facts

• Caroline L. Sweeney sold 54,775 Merck shares on August 6, 2026 for $6,805,145 at an average price of $124.23, and after the sale still directly owns 75,986 shares valued at approximately $9,439,360.88. source
• Rockland Trust Co. sold 44,914 Merck shares in Q2, reducing its stake by 8.4% and holding 490,049 shares valued at $63 million. source