Merck & Co., Inc. — SEC Form 4 Filings
SEC Form 4 Data
Track insider buying and selling activity for Merck & Co., Inc. (MRK). Data sourced from SEC EDGAR Form 4 filings and analyzed by StoxPulse AI for significance.
6
$5.5M total
10
$12.0M total
0.6x
Bearish Signal
16
Form 4 transactions
Buy − Sell value
Sale · Aug 5, 2026
DeLuca · Sale
Merck & Co., Inc. insiders filed 16 Form 4 transactions in the period analyzed: 6 purchases totaling $5.5M and 10 sales totaling $12.0M. That puts the buy-to-sell ratio at 0.60, which we read as bearish on a directional basis.
The most active filer was Maraldo David R. with 6 transactions in this window. 6 of the 16 filings are flagged as routine — typically 10b5-1 scheduled trades rather than discretionary signals.
Form 4 filings are point-in-time disclosures and do not constitute investment advice. Routine sales under pre-arranged 10b5-1 plans should not be read as bearish.
| Insider | Title | Type | Shares | Price | Value | Date |
|---|---|---|---|---|---|---|
| DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | Sale | 805 | $131.02 | $105K | 2026-08-06 |
| DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | Sale | 4,945 | $130.23 | $644K | 2026-08-06 |
| DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | Sale | 300 | $131.02 | $39K | 2026-08-06 |
| Guindo Chirfi | EVP, Access, Policy & Comms | Sale | 15,000 | $131.00 | $2.0M | 2026-08-06 |
| Maraldo David R. | EVP & Pres. MMD | Buy | 6,311 | $73.73 | $465K | 2026-08-05 |
| Maraldo David R. | EVP & Pres. MMD | Sale | 6,311 | $128.72 | $812K | 2026-08-05 |
| Maraldo David R. | EVP & Pres. MMD | Buy | 9,709 | $87.10 | $846K | 2026-08-05 |
| Maraldo David R. | EVP & Pres. MMD | Sale | 9,709 | $128.72 | $1.2M | 2026-08-05 |
| Maraldo David R. | EVP & Pres. MMD | Buy | 2,686 | $84.71 | $228K | 2026-08-05 |
| Maraldo David R. | EVP & Pres. MMD | Sale | 2,686 | $128.72 | $346K | 2026-08-05 |
| Williams David Michael | EVP,Chief Info&Digital Officer | Buy | 4,600 | $77.62 | $357K | 2026-08-05 |
| Williams David Michael | EVP,Chief Info&Digital Officer | Sale | 4,600 | $128.77 | $592K | 2026-08-05 |
| Williams David Michael | EVP,Chief Info&Digital Officer | Buy | 13,542 | $75.36 | $1.0M | 2026-08-05 |
| Williams David Michael | EVP,Chief Info&Digital Officer | Sale | 13,542 | $128.77 | $1.7M | 2026-08-05 |
| Williams David Michael | EVP,Chief Info&Digital Officer | Buy | 34,705 | $73.73 | $2.6M | 2026-08-05 |
| Williams David Michael | EVP,Chief Info&Digital Officer | Sale | 34,705 | $128.77 | $4.5M | 2026-08-05 |
Insider trading data for Merck & Co., Inc. (MRK) is sourced directly from SEC Form 4 filings on the EDGAR database. Corporate insiders — including directors, officers, and shareholders owning more than 10% of the company — are legally required to report their transactions within two business days.
Insider purchases are often considered a bullish signal because executives are using their own money to buy shares, suggesting they believe the stock is undervalued. Insider sales, on the other hand, are more nuanced — they can reflect routine diversification plans (known as 10b5-1 plans), tax obligations, or genuine concerns about the company's outlook.
StoxPulse's AI system analyzes each MRK insider transaction to determine whether it appears routine or notable. We track the buy/sell ratio, total transaction values, and patterns over time to provide a clear picture of insider sentiment for Merck & Co., Inc..
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Disclaimer: Insider trading data for Merck & Co., Inc. (MRK) is sourced from SEC Form 4 filings and is provided for informational purposes only. Insider transactions should not be the sole basis for investment decisions. Always consult a qualified financial advisor.
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