$MRK insider trading
Over the last 12 months, Merck insiders reported no purchases and 21 sales totaling $72.0M across SEC Form 4 filings.
- Bought · 12m
- — 0 events
- Sold · 12m
- $72.0M 21 events
- Events · 12m
- 21 Form 4 filings, grouped
- Insiders · 12m
- 11 distinct reporters
- 10b5-1 share
- 0% of events, not dollars
All insider trades
Scroll the table sideways for price, value and marks.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Aug 13, 2026 | Guindo ChirfiEVP, Access, Policy & Comms · O | ▼ Sale | 10,000 | $135 | $1.4M | -21.5% | — |
| Aug 12, 2026 | Zachary JenniferEVP, General Counsel · O | ▼ Sale | 80,315 | $133.46 | $10.7M | -63.8% | — |
| Aug 12, 2026 | DeLuca Richard R.EVP&Pres, Merck Animal Heallth · O | ▼ Sale | 45,320 | $131.12 | $5.9M | -29.1% | 5 tranches |
| Aug 6, 2026 | DeLuca Richard R.EVP&Pres, Merck Animal Heallth · O | ▼ Sale | 6,050 | $130.38 | $789K | -3.7% | 3 tranches |
| Aug 6, 2026 | Guindo ChirfiEVP, Access, Policy & Comms · O | ▼ Sale | 15,000 | $131 | $2.0M | -24.3% | — |
| Aug 5, 2026 | Maraldo David R.EVP & Pres. MMD · O | ▼ Sale | 18,706 | $128.72 | $2.4M | -50.7% | 3 tranches |
| Aug 5, 2026 | Williams David MichaelEVP,Chief Info&Digital Officer · O | ▼ Sale | 52,847 | $128.77 | $6.8M | -62.5% | 3 tranches |
| Feb 12, 2026 | Guindo ChirfiChief Marketing Officer · O | ▼ Sale | 10,000 | $121.46 | $1.2M | -14.2% | — |
| Feb 10, 2026 | Li Dean YExecutive VP & President, MRL · O | ▼ Sale | 10,235 | $117.52 | $1.2M | -10% | — |
| Feb 9, 2026 | Guindo ChirfiChief Marketing Officer · O | ▼ Sale | 10,000 | $118.41 | $1.2M | -12.4% | — |
| Feb 9, 2026 | Zachary JenniferEVP, General Counsel · O | ▼ Sale | 121,573 | $119.15 | $14.5M | -63.8% | 3 tranches |
| Feb 6, 2026 | Williams David MichaelEVP,Chief Info&Digital Officer · O | ▼ Sale | 5,000 | $121.9 | $610K | -14% | — |
| Feb 6, 2026 | Oosthuizen Johannes JacobusPresident, U.S. Market · O | ▼ Sale | 15,000 | $121.87 | $1.8M | -41.4% | — |
| Feb 6, 2026 | DeLuca Richard R.EVP&Pres, Merck Animal Heallth · O | ▼ Sale | 37,685 | $120.92 | $4.6M | -19% | — |
| Feb 5, 2026 | Guindo ChirfiChief Marketing Officer · O | ▼ Sale | 20,000 | $121.88 | $2.4M | -19.9% | — |
| Feb 4, 2026 | Smart Dalton E. IIISVP Fin. - Global Controller · O | ▼ Sale | 6,400 | $119.68 | $766K | -43.8% | 2 tranches |
| Feb 4, 2026 | Litchfield CarolineEVP & CFO · O | ▼ Sale | 41,997 | $119.61 | $5.0M | -31.8% | — |
| Feb 4, 2026 | Li Dean YExecutive VP & President, MRL · O | ▼ Sale | 15,087 | $118.77 | $1.8M | -12.9% | — |
| Feb 4, 2026 | Davis Robert MChairman, CEO & President · O·D | ▼ Sale | 47,434 | $118.04 | $5.6M | -9.7% | 2 tranches |
| Nov 10, 2025 | Downing Cristal NChief Comm. & Public Afrs Ofcr · O | ▼ Sale | 7,085 | $87 | $616K | -100% | — |
| Nov 3, 2025 | Williams David MichaelEVP,Chief Info&Digital Officer · O | ▼ Sale | 8,614 | $83.59 | $720K | -26% | — |
Every $MRK filing on this page is one API call away
The same Form 4 data over REST or MCP, already grouped into events with the plan flag and the dollar value read. A free key does 100 calls a day and needs no card. Prefer email? Merck filings can reach your inbox instead.
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. This page shows open-market activity: purchases (code P), sales (S) and dispositions back to the issuer (D). Scheduled compensation events such as stock grants and option exercises are also filed on Form 4 but carry no trading signal, so they are not shown and counts here can be lower than the raw EDGAR filing total. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $MRK feed.