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Insider trades
Open-market buys and sells by officers, directors and 10% owners, from SEC Form 4. Usually filed within two business days.
About this data
- What it is
- When a company's officers, directors or owners of more than 10% buy or sell its stock, they must report the trade to the SEC on Form 4. This feed shows purchases and sales on the open market; stock grants, option exercises and shares withheld for tax are left out.
- Who files it
- The insider, usually through the company, within two business days of the trade.
- How current
- We collect new filings throughout the day on SEC business days.
- Worth knowing
- Sales are often routine: insiders sell to diversify, to pay taxes, or under a 10b5-1 plan set up months in advance. A purchase with their own money is less common, which is why many investors pay closer attention to it.
All of this comes from public filings.
Source and freshness · Information, not investment advice (disclaimer).
Open-market trades per day, last 30 days
Purchases Sales
By trade date. Insiders have two business days to file, so the most recent days fill in later.
Latest open-market insider trades
Showing: ticker MRK
| Traded | Insider | Company | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Aug 13, 2026 | Chirfi Guindo EVP, Access, Policy & Comms | MRK Merck & Company, Inc. | Sale | 10,000 | $135.00 | $1.4M Sale | Form 4 ↗ |
| Aug 12, 2026 | Jennifer Zachary EVP, General Counsel | MRK Merck & Company, Inc. | Sale | 80,315 | $133.46 | $10.7M Sale | Form 4 ↗ |
| Aug 12, 2026 | Richard R. DeLuca EVP&Pres, Merck Animal Heallth | MRK Merck & Company, Inc. | Sale | 600 | $132.04 | $79.2K Sale | Form 4 ↗ |
| Aug 12, 2026 | Richard R. DeLuca EVP&Pres, Merck Animal Heallth | MRK Merck & Company, Inc. | Sale | 11,099 | $131.61 | $1.5M Sale | Form 4 ↗ |
| Aug 11, 2026 | Richard R. DeLuca EVP&Pres, Merck Animal Heallth | MRK Merck & Company, Inc. | Sale | 5,427 | $132.35 | $718.3K Sale | Form 4 ↗ |
| Aug 11, 2026 | Richard R. DeLuca EVP&Pres, Merck Animal Heallth | MRK Merck & Company, Inc. | Sale | 7,410 | $131.33 | $973.2K Sale | Form 4 ↗ |
| Aug 10, 2026 | Richard R. DeLuca EVP&Pres, Merck Animal Heallth | MRK Merck & Company, Inc. | Sale | 20,784 | $130.43 | $2.7M Sale | Form 4 ↗ |
| Aug 6, 2026 | Richard R. DeLuca EVP&Pres, Merck Animal Heallth | MRK Merck & Company, Inc. | Sale | 300 | $131.02 | $39.3K Sale | Form 4 ↗ |
| Aug 6, 2026 | Richard R. DeLuca EVP&Pres, Merck Animal Heallth | MRK Merck & Company, Inc. | Sale | 4,945 | $130.23 | $644.0K Sale | Form 4 ↗ |
| Aug 6, 2026 | Richard R. DeLuca EVP&Pres, Merck Animal Heallth | MRK Merck & Company, Inc. | Sale | 805 | $131.02 | $105.5K Sale | Form 4 ↗ |
| Aug 6, 2026 | Chirfi Guindo EVP, Access, Policy & Comms | MRK Merck & Company, Inc. | Sale | 15,000 | $131.00 | $2.0M Sale | Form 4 ↗ |
| Aug 5, 2026 | David R. Maraldo EVP & Pres. MMD | MRK Merck & Company, Inc. | Sale | 2,686 | $128.72 | $345.7K Sale | Form 4 ↗ |
| Aug 5, 2026 | David R. Maraldo EVP & Pres. MMD | MRK Merck & Company, Inc. | Sale | 9,709 | $128.72 | $1.2M Sale | Form 4 ↗ |
| Aug 5, 2026 | David R. Maraldo EVP & Pres. MMD | MRK Merck & Company, Inc. | Sale | 6,311 | $128.72 | $812.4K Sale | Form 4 ↗ |
| Aug 5, 2026 | David Michael Williams EVP,Chief Info&Digital Officer | MRK Merck & Company, Inc. | Sale | 34,705 | $128.77 | $4.5M Sale | Form 4 ↗ |
| Aug 5, 2026 | David Michael Williams EVP,Chief Info&Digital Officer | MRK Merck & Company, Inc. | Sale | 13,542 | $128.77 | $1.7M Sale | Form 4 ↗ |
| Aug 5, 2026 | David Michael Williams EVP,Chief Info&Digital Officer | MRK Merck & Company, Inc. | Sale | 4,600 | $128.77 | $592.3K Sale | Form 4 ↗ |
| Feb 12, 2026 | Chirfi Guindo Chief Marketing Officer | MRK Merck & Company, Inc. | Sale | 10,000 | $121.46 | $1.2M Sale | Form 4 ↗ |
| Feb 10, 2026 | Dean Y. Li Executive VP & President, MRL | MRK Merck & Company, Inc. | Sale | 10,235 | $117.52 | $1.2M Sale | Form 4 ↗ |
| Feb 9, 2026 | Chirfi Guindo Chief Marketing Officer | MRK Merck & Company, Inc. | Sale | 10,000 | $118.41 | $1.2M Sale | Form 4 ↗ |
| Feb 9, 2026 | Jennifer Zachary EVP, General Counsel | MRK Merck & Company, Inc. | Sale | 38,835 | $119.15 | $4.6M Sale | Form 4 ↗ |
| Feb 9, 2026 | Jennifer Zachary EVP, General Counsel | MRK Merck & Company, Inc. | Sale | 56,792 | $119.15 | $6.8M Sale | Form 4 ↗ |
| Feb 9, 2026 | Jennifer Zachary EVP, General Counsel | MRK Merck & Company, Inc. | Sale | 25,946 | $119.15 | $3.1M Sale | Form 4 ↗ |
| Feb 6, 2026 | David Michael Williams EVP,Chief Info&Digital Officer | MRK Merck & Company, Inc. | Sale | 5,000 | $121.91 | $609.5K Sale | Form 4 ↗ |
| Feb 6, 2026 | Johannes Jacobus Oosthuizen President, U.S. Market | MRK Merck & Company, Inc. | Sale | 15,000 | $121.87 | $1.8M Sale | Form 4 ↗ |
| Feb 6, 2026 | Richard R. DeLuca EVP&Pres, Merck Animal Heallth | MRK Merck & Company, Inc. | Sale | 37,685 | $120.92 | $4.6M Sale | Form 4 ↗ |
| Feb 5, 2026 | Chirfi Guindo Chief Marketing Officer | MRK Merck & Company, Inc. | Sale | 20,000 | $121.88 | $2.4M Sale | Form 4 ↗ |
| Feb 4, 2026 | Dalton E. Smart III SVP Fin. - Global Controller | MRK Merck & Company, Inc. | Sale | 2,400 | $119.68 | $287.2K Sale | Form 4 ↗ |
| Feb 4, 2026 | Dalton E. Smart III SVP Fin. - Global Controller | MRK Merck & Company, Inc. | Sale | 4,000 | $119.68 | $478.7K Sale | Form 4 ↗ |
| Feb 4, 2026 | Caroline Litchfield EVP & CFO | MRK Merck & Company, Inc. | Sale | 41,997 | $119.61 | $5.0M Sale | Form 4 ↗ |
| Feb 4, 2026 | Dean Y. Li Executive VP & President, MRL | MRK Merck & Company, Inc. | Sale | 15,087 | $118.77 | $1.8M Sale | Form 4 ↗ |
| Feb 4, 2026 | Robert M. Davis Chairman, CEO & President, Director | MRK Merck & Company, Inc. | Sale | 32,462 | $118.35 | $3.8M Sale | Form 4 ↗ |
| Feb 4, 2026 | Robert M. Davis Chairman, CEO & President, Director | MRK Merck & Company, Inc. | Sale | 14,972 | $117.38 | $1.8M Sale | Form 4 ↗ |
| Nov 10, 2025 | Cristal N. Downing Chief Comm. & Public Afrs Ofcr | MRK Merck & Company, Inc. | Sale | 7,085 | $87.00 | $616.4K Sale | Form 4 ↗ |
| Nov 3, 2025 | David Michael Williams EVP,Chief Info&Digital Officer | MRK Merck & Company, Inc. | Sale | 8,614 | $83.59 | $720.0K Sale | Form 4 ↗ |
| Apr 25, 2025 | Dalton E. Smart III SVP Fin. - Global Controller | MRK Merck & Company, Inc. | Sale | 4,262 | $82.76 | $352.7K Sale | Form 4 ↗ |
| Feb 19, 2025 | Johannes Jacobus Oosthuizen President, U.S. Market | MRK Merck & Company, Inc. | Sale | 8,500 | $84.09 | $714.8K Sale | Form 4 ↗ |
| Feb 13, 2025 | David Michael Williams EVP,Chief Info&Digital Officer | MRK Merck & Company, Inc. | Sale | 6,000 | $85.34 | $512.0K Sale | Form 4 ↗ |
| Feb 6, 2025 | Inge G. Thulin Director | MRK Merck & Company, Inc. | Buy | 2,833 | $88.25 | $250.0K Buy | Form 4 ↗ |
| Feb 6, 2025 | Cristal N. Downing Chief Comm. & Public Afrs Ofcr | MRK Merck & Company, Inc. | Sale | 2,361 | $88.76 | $209.6K Sale | Form 4 ↗ |
| Feb 5, 2025 | Douglas M. Baker Jr. Director | MRK Merck & Company, Inc. | Buy | 15,000 | $88.50 | $1.3M Buy | Form 4 ↗ |
41 items, most recent first (up to 50). Every row links to its original filing. Updated Nov 15, 2026, 6:20 PM EST.
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