Merck's three largest insider shareholders as of March 23, 2026 are Kenneth C Frazier (Executive Chair, 700.65K shares), Robert M Davis (Chairman, Ceo President, 443.60K shares), Richard R. Deluca (Evppres, Merck Animal Heallth, 160.17K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Kenneth C Frazier | Executive Chair | 700,653 | 0 | 08 Nov, 2022 |
| Robert M Davis | Chairman, Ceo President | 443,602 | 0 | 06 Feb, 2026 |
| Richard R. Deluca | Evppres, Merck Animal Heallth | 160,174 | 0 | 06 Feb, 2026 |
| Frank Clyburn | Evp Pres ? Human Health | 97,095 | 0 | 02 Nov, 2021 |
| Dean Y Li | Executive Vp President, Mrl | 92,035 | 0 | 10 Feb, 2026 |
| Caroline Litchfield | Evp Cfo | 90,192 | 0 | 06 Feb, 2026 |
| Jennifer Zachary | Evp, General Counsel | 68,916 | 0 | 09 Feb, 2026 |
| Chirfi Guindo | Chief Marketing Officer | 60,615 | 0 | 12 Feb, 2026 |
| Julie L. Gerberding | Evp, Chief Patient Officer | 48,712 | 0 | 28 Feb, 2022 |
| Rita A Karachun | Sr. Vp Fince Global Controller | 45,710 | 0 | 05 May, 2023 |
| David Michael Williams | Evp,Chief Infodigital Officer | 30,838 | 0 | 06 Feb, 2026 |
| Joseph Romanelli | President, Human Health Int?L | 28,739 | 0 | 28 Jan, 2026 |
| Michael A Klobuchar | Evp Chief Strategy Officer | 23,621 | 0 | 06 May, 2024 |
| Steven Mizell | Evp, Chief Hr Officer | 23,619 | 0 | 02 Feb, 2024 |
| Johannes Jacobus Oosthuizen | President, U.S. Market | 21,197 | 0 | 06 Feb, 2026 |
| Douglas M Jr Baker | 16,000 | 0 | 07 Feb, 2025 | |
| Douglas M Jr Baker | 16,000 | 0 | 07 Feb, 2025 | |
| Sanat Chattopadhyay | Exe V P Pres. Mmd | 13,880 | 0 | 28 Jan, 2026 |
| Dalton E. Iii Smart | Svp Fin. Global Controller | 8,205 | 0 | 06 Feb, 2026 |
| Betty D Larson | Evp, Chief Hr Officer | 6,197 | 0 | 02 May, 2025 |
| Lisa Lecointe-Cephas | Svp Chief Ethics Com Officer | 5,142 | 0 | 05 May, 2023 |
| Inge G Thulin | 2,933 | 0 | 07 Feb, 2025 | |
| Arpa Garay | Svp Human Health Global Mktg. | 2,109 | 0 | 05 May, 2022 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 12 Feb, 2026 | Chirfi Guindo | Common Stock | D | 10,000 | $121.46 | 60,615 | D | S |
| 10 Feb, 2026 | Dean Y Li | Common Stock | D | 10,235 | $117.52 | 92,035 | D | S |
| 09 Feb, 2026 | Chirfi Guindo | Common Stock | D | 10,000 | $118.41 | 70,615 | D | S |
| 09 Feb, 2026 | Jennifer Zachary | Common Stock | A | 25,946 | $119.15 | 94,862 | D | M |
| 09 Feb, 2026 | Jennifer Zachary | Common Stock | D | 25,946 | $119.15 | 68,916 | D | S |
| 09 Feb, 2026 | Jennifer Zachary | Common Stock | A | 56,792 | $119.15 | 125,708 | D | M |
| 09 Feb, 2026 | Jennifer Zachary | Common Stock | D | 56,792 | $119.15 | 68,916 | D | S |
| 09 Feb, 2026 | Jennifer Zachary | Common Stock | A | 38,835 | $119.15 | 107,751 | D | M |
| 09 Feb, 2026 | Jennifer Zachary | Common Stock | D | 38,835 | $119.15 | 68,916 | D | S |
| 09 Feb, 2026 | Jennifer Zachary | Stock Option (Right to Buy) | D | 25,946 | $0.00 | 0 | D | M |
| 09 Feb, 2026 | Jennifer Zachary | Stock Option (Right to Buy) | D | 56,792 | $0.00 | 0 | D | M |
| 09 Feb, 2026 | Jennifer Zachary | Stock Option (Right to Buy) | D | 38,835 | $0.00 | 0 | D | M |
| 06 Feb, 2026 | Johannes Jacobus Oosthuizen | Common Stock | D | 15,000 | $121.87 | 21,197 | D | S |
| 04 Feb, 2026 | Dean Y Li | Common Stock | A | 15,087 | $56.04 | 117,357 | D | M |
| 04 Feb, 2026 | Caroline Litchfield | Common Stock | A | 41,997 | $53.06 | 132,189 | D | M |
| 04 Feb, 2026 | Robert M Davis | Common Stock | D | 14,972 | $117.38 | 476,064 | D | S |
| 04 Feb, 2026 | Dalton E. Iii Smart | Common Stock | A | 4,000 | $62.07 | 14,605 | D | M |
| 06 Feb, 2026 | Richard R. Deluca | Common Stock | D | 37,685 | $120.92 | 160,174 | D | S |
| 06 Feb, 2026 | David Michael Williams | Common Stock | A | 5,000 | $77.62 | 35,838 | D | M |
| 05 Feb, 2026 | Chirfi Guindo | Common Stock | D | 20,000 | $121.88 | 80,615 | D | S |