Merck (MRK) insider trading in the last 6 months

5 insiders sold $30M. No buys.

Quality Score16Excellent

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Form 4 filings, newest first

SellJennifer Zachary$10.7MEVP, General Counselat $133.46 on Aug 12, filed Aug 13

SellJennifer ZacharyEVP, General Counsel$10.7Mat $133.46 on Aug 12, filed Aug 13

SellChirfi Guindo$1.4MEVP, Access, Policy & Commsat $135.00 on Aug 13, filed Aug 13

SellChirfi GuindoEVP, Access, Policy & Comms$1.4Mat $135.00 on Aug 13, filed Aug 13

SellRichard R. DeLuca$2.7MEVP&Pres, Merck Animal Heallthat $130.43 on Aug 10, filed Aug 12

SellRichard R. DeLucaEVP&Pres, Merck Animal Heallth$2.7Mat $130.43 on Aug 10, filed Aug 12

From SEC Form 4s, the newest filed Aug 13, 2026 · Insiders have 2 business days to file a trade

14 more filings on MRK in the last 6 months, for Pro members. See them free →

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Who files at Merck

Insider trades by person

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Questions about MRK's insider trades

As of Nov 9, 2026: Merck (MRK) has 17 insider filings on record in the last 6 months, the newest filed Aug 13, 2026. Its Quality Score is 16 (Excellent). Scores as of 9:10 AM ET, 15 minutes behind.

Are MRK insiders buying or selling?

5 insiders sold $30M across 17 filings in the last 6 months. No open-⁠market buys on record. The newest filing: Jennifer Zachary, EVP, General Counsel, sold $10.7M on Aug 12, 2026.

Who are MRK's biggest insider sellers?

By the dollars of their sales in the last 6 months: Jennifer Zachary (EVP, General Counsel), 1 sale; David Michael Williams (EVP,Chief Info&Digital Officer), 3 sales; Richard R. DeLuca (EVP&Pres, Merck Animal Heallth), 8 sales. 5 insiders sold in all.

When did an MRK insider last buy?

No MRK insider bought shares on the open market in the last 6 months, as filed on Form 4. The newest filing is a sale by Jennifer Zachary on Aug 12, 2026.

Merck's page has its Quality Score, its chart, and its earnings. More in Healthcare and Pharma.

Merck (MRK) insider trading in the last 6 months

Form 4 filings, newest first

Who files at Merck

Questions about MRK's insider trades

Every insider trade, with its stock's score.