Over the past 12 months, 10 insiders at Merck & Co., Inc. filed 18 open-market SEC Form 4 transactions on MRK: 0 purchases worth $0 and 18 sales worth $42.0M. Insiders have been net sellers over this period. The most recent filing was on Feb 12, 26.
| Date | Insider | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| Feb 12, 26 | Chirfi GuindoChief Marketing Officer | SELL | 10.0K | $121.46 | $1.2M |
| Feb 10, 26 | Dean Y LiExecutive VP & President, MRL | SELL | 10.2K | $117.52 | $1.2M |
| Feb 9, 26 | Chirfi GuindoChief Marketing Officer | SELL | 10.0K | $118.41 | $1.2M |
| Feb 9, 26 | Jennifer ZacharyEVP, General Counsel | SELL | 56.8K | $119.15 | $6.8M |
| Feb 6, 26 | Richard R. DelucaEVP&Pres, Merck Animal Heallth | SELL | 37.7K | $120.92 | $4.6M |
| Feb 6, 26 | Johannes Jacobus OosthuizenPresident, U.S. Market | SELL | 15.0K | $121.87 | $1.8M |
| Feb 6, 26 | David Michael WilliamsEVP,Chief Info&Digital Officer | SELL | 5.0K | $121.91 | $610K |
| Feb 5, 26 | Chirfi GuindoChief Marketing Officer | SELL | 20.0K | $121.88 | $2.4M |
| Feb 4, 26 | Robert M DavisChairman, CEO & President | SELL | 32.5K | $118.35 | $3.8M |
| Feb 4, 26 | Dean Y LiExecutive VP & President, MRL | SELL | 15.1K | $118.77 | $1.8M |
| Feb 4, 26 | Caroline LitchfieldEVP & CFO | SELL | 42.0K | $119.61 | $5.0M |
| Feb 4, 26 | Dalton E. Smart IIISVP Fin. - Global Controller | SELL | 4.0K | $119.68 | $479K |
| Nov 10, 25 | Cristal N DowningChief Comm. & Public Afrs Ofcr | SELL | 7.1K | $87.00 | $616K |
| Nov 3, 25 | David Michael WilliamsEVP,Chief Info&Digital Officer | SELL | 8.6K | $83.59 | $720K |
| Apr 25, 25 | Dalton E. Smart IIISVP Fin. - Global Controller | SELL | 4.3K | $82.76 | $353K |
| Feb 19, 25 | Johannes Jacobus OosthuizenPresident, U.S. Market | SELL | 8.5K | $84.09 | $715K |
| Feb 13, 25 | David Michael WilliamsEVP,Chief Info&Digital Officer | SELL | 6.0K | $85.34 | $512K |
| Feb 6, 25 | Cristal N DowningChief Comm. & Public Afrs Ofcr | SELL | 2.4K | $88.76 | $210K |
| Feb 6, 25 | Inge G ThulinDirector | BUY | 2.8K | $88.25 | $250K |
| Feb 5, 25 | Douglas M Baker JrDirector | BUY | 15.0K | $88.50 | $1.3M |
| Feb 14, 24 | Caroline LitchfieldEVP & CFO | SELL | 38.3K | $125.50 | $4.8M |
| Feb 14, 24 | Robert M DavisChairman, CEO & President | SELL | 85.0K | $125.40 | $10.7M |
| Feb 13, 24 | Robert M DavisChairman, CEO & President | SELL | 124.7K | $126.37 | $15.7M |
| Feb 13, 24 | Joseph RomanelliPresident, Human Health Int?l | SELL | 1.0K | $124.89 | $125K |
| Feb 9, 24 | Dean Y LiExecutive VP & President, MRL | SELL | 14.7K | $125.50 | $1.8M |
| Feb 7, 24 | David Michael WilliamsEVP,Chief Info&Digital Officer | SELL | 1.5K | $127.57 | $185K |
| Feb 2, 24 | Steven MizellEVP, Chief HR Officer | SELL | 50.7K | $126.65 | $6.4M |
| Feb 2, 24 | Johannes Jacobus OosthuizenPresident, U.S. Market | SELL | 19.0K | $127.18 | $2.4M |
| Feb 2, 24 | Jennifer ZacharyEVP, General Counsel | SELL | 49.5K | $126.97 | $6.3M |
| Nov 9, 23 | Johannes Jacobus OosthuizenPresident, U.S. Market | SELL | 2.1K | $102.38 | $213K |
| Nov 8, 23 | Richard R. DelucaEVP&Pres, Merck Animal Heallth | SELL | 43.8K | $105.03 | $4.6M |
| Aug 14, 23 | Steven MizellEVP, Chief HR Officer | SELL | 4.3K | $109.01 | $463K |
| Aug 3, 23 | Steven MizellEVP, Chief HR Officer | SELL | 4.5K | $105.49 | $475K |
| Aug 2, 23 | Joseph RomanelliPresident, Human Health Int?l | SELL | 59 | $107.37 | $6K |
| May 4, 23 | Jennifer ZacharyEVP, General Counsel | SELL | 19.1K | $117.59 | $2.3M |
| May 4, 23 | Rita A KarachunSr. VP Fince-Global Controller | SELL | 15.9K | $117.53 | $1.9M |
| May 3, 23 | Steven MizellEVP, Chief HR Officer | SELL | 15.0K | $119.01 | $1.8M |
| May 2, 23 | David Michael WilliamsEVP,Chief Info&Digital Officer | SELL | 7.5K | $116.82 | $877K |
| May 1, 23 | Richard R. DelucaEVP&Pres, Merck Animal Heallth | SELL | 75.4K | $116.03 | $8.8M |
| Apr 28, 23 | Robert M DavisChairman, CEO & President | SELL | 143.3K | $114.93 | $16.5M |
| Apr 28, 23 | Richard R. DelucaEVP&Pres, Merck Animal Heallth | SELL | 66.2K | $115.00 | $7.6M |
| Apr 26, 23 | Joseph RomanelliPresident, Human Health Int?l | BUY | 3 | $113.68 | $341 |
| Apr 13, 23 | Sanat ChattopadhyayExe V-P & Pres. MMD | SELL | 67.9K | $115.07 | $7.8M |
| Mar 24, 23 | Joseph RomanelliPresident, Human Health Int?l | SELL | 35 | $104.65 | $4K |
| Mar 20, 23 | Joseph RomanelliPresident, Human Health Int?l | BUY | 136 | $105.47 | $14K |
| Feb 21, 23 | Joseph RomanelliPresident, Human Health Int?l | BUY | 11 | $109.20 | $1K |
| Feb 15, 23 | Joseph RomanelliPresident, Human Health Int?l | SELL | 5.0K | $108.22 | $541K |
| Feb 13, 23 | Steven MizellEVP, Chief HR Officer | SELL | 1.8K | $109.10 | $198K |
| Feb 9, 23 | Steven MizellEVP, Chief HR Officer | SELL | 5.0K | $107.00 | $535K |
| Feb 6, 23 | Steven MizellEVP, Chief HR Officer | SELL | 4.4K | $104.25 | $462K |
Over the past 12 months, insiders at Merck & Co., Inc. filed 0 open-market purchases worth $0 and 18 sales worth $42.0M on MRK, which makes them net sellers over the period. The most recent Form 4 was filed on Feb 12, 26.
The largest recent open-market MRK insider purchase in our data was $1.3M by Douglas M Baker Jr, Director, filed on Feb 5, 25.
10 different insiders at Merck & Co., Inc. filed open-market SEC Form 4 transactions on MRK over the last 12 months.
InsiderTape plots every MRK insider buy and sell directly on the price chart and flags new SEC Form 4 filings as they arrive, with cluster detection and buy/sell pressure. The data updates daily from SEC EDGAR.
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