MRK Merck & Co., Inc.: institutional ownership and insider trading
4,193 funds reported holding $291B of Merck & Co., Inc. in their latest 13F filings; in Q2 2026 funds net bought $5.88B, with 163 new positions and 122 funds selling out; over the last 12 months insiders bought $0 and sold $72.0M on the open market; over its last four quarters it reported revenue of $66.6B and net income of $3.17B.
MRK revenue and earnings
- Quarter ended Jun 30, 2026: revenue $16.6B, net income −$1.34B, EPS -0.54
- Quarter ended Mar 31, 2026: revenue $16.3B, net income −$4.24B, EPS -1.72
- Quarter ended Dec 31, 2025: revenue $16.4B, net income $2.96B, EPS 1.19
- Quarter ended Sep 30, 2025: revenue $17.3B, net income $5.79B, EPS 2.32
Famous investors holding MRK
- D. E. Shaw (D. E. Shaw & Co.): $572M, 0.3% of the portfolio
- Ken Griffin (Citadel Advisors): $1.18B, 0.1% of the portfolio
- Izzy Englander (Millennium Management): $272M, 0.1% of the portfolio
- Two Sigma (Two Sigma Investments): $21.3M, 0.0% of the portfolio
- Ray Dalio (Bridgewater Associates): $3.89M, 0.0% of the portfolio
- Tom Russo (Gardner Russo & Quinn): $211K, 0.0% of the portfolio
Largest institutional holders of MRK
- BlackRock, Inc. (BLK) — $29.2B
- VANGUARD GROUP INC — $26.8B
- VANGUARD CAPITAL MANAGEMENT LLC — $20.7B
- STATE STREET CORP (STT, STT-PG) — $15.6B
- WELLINGTON MANAGEMENT GROUP LLP — $11.1B
- VANGUARD PORTFOLIO MANAGEMENT LLC — $8.70B
- GEODE CAPITAL MANAGEMENT, LLC — $7.79B
- CHARLES SCHWAB INVESTMENT MANAGEMENT INC — $6.99B
- MORGAN STANLEY (MS, MS-PA, MS-PE, MS-PF, MS-PI, MS-PK, MS-PL, MS-PO, MS-PP, MS-PQ) — $6.25B
- FMR LLC — $5.84B
Recent MRK insider trades
- Aug 13, 2026: Guindo Chirfi sold 10,000 shares ($1.35M)
- Aug 12, 2026: Zachary Jennifer sold 80,315 shares ($10.7M)
- Aug 12, 2026: DeLuca Richard R. sold 45,320 shares ($5.94M)
- Aug 6, 2026: DeLuca Richard R. sold 6,050 shares ($789K)
Members of Congress trading MRK
- Sep 24, 2026: Maria Elvira Salazar sold part of $1.00K–$15.0K
- Aug 19, 2026: Maria Elvira Salazar bought $15.0K–$50.0K
- Aug 19, 2026: Maria Elvira Salazar bought $15.0K–$50.0K
- Feb 4, 2026: Josh Gottheimer bought $1.00K–$15.0K
- Dec 19, 2025: Gilbert Ray Cisneros, Jr. bought $1.00K–$15.0K
- Dec 18, 2025: Julie Johnson sold $1.00K–$15.0K
- Nov 18, 2025: Gilbert Ray Cisneros, Jr. bought $1.00K–$15.0K
- Nov 13, 2025: Julie Johnson sold part of $1.00K–$15.0K
- Sep 23, 2025: Val T. Hoyle sold $1.00K–$15.0K
- Aug 28, 2025: Marjorie Taylor Greene bought $1.00K–$15.0K
5%+ owners
- Vanguard Capital Management: 7.5% (Schedule 13G, filed Apr 30, 2026)