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M

MRK

NYSE

Merck & Co., Inc.

Latest disclosureOctober 1, 2026
Insider score Why 0?
0/ 100
Qualifying buys · 30d
$0

0 purchases · 17 sales

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Insider transactions 124

Limited filing history
All124Buying0Selling17Other107
Filters

Last 30 daysNo qualifying insider buying. No qualifying insider sales.

107 of 124 trades · March 31, 2026 – September 30, 2026Incomplete history: this shows the filings imported so far, not every filing ever made. Dates are trade dates. Filters affect this table only.

Showing the first 6 of 20 trades on this page.

Award disclosed

Christine E. Seidman

Director

Phantom Stock

Derivative security · not the ordinary share price.

Value context
$8.12K
Reported price
$145.31 / derivative unit
Traded September 30, 2026Filed October 1, 2026SEC filing
Award disclosed

Surendralal Lanca Karsanbhai

Director

Phantom Stock

Derivative security · not the ordinary share price.

Value context
$16.25K
Reported price
$145.31 / derivative unit
Traded September 30, 2026Filed October 1, 2026SEC filing
Award disclosed

Mary Ellen Coe

Director

Phantom Stock

Derivative security · not the ordinary share price.

Value context
$30K
Reported price
$145.31 / derivative unit
Traded September 30, 2026Filed October 1, 2026SEC filing
Exercise or conversion

Jennifer Zachary

EVP, General Counsel

Common Stock

Value context
$4.89M
Reported price
$117.89 / share
Traded August 12, 2026Filed August 13, 2026SEC filing
Exercise or conversion

Jennifer Zachary

EVP, General Counsel

Common Stock

Value context
$1.14M
Reported price
$84.71 / share
Traded August 12, 2026Filed August 13, 2026SEC filing
Exercise or conversion

Jennifer Zachary

EVP, General Counsel

Stock Option (Right to Buy)

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
$117.89 exercise / conversion price
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded August 12, 2026Filed August 13, 2026SEC filing
Exercise or conversion

Jennifer Zachary

EVP, General Counsel

Stock Option (Right to Buy)

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
$84.71 exercise / conversion price
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded August 12, 2026Filed August 13, 2026SEC filing
Exercise or conversion

David R. Maraldo

EVP & Pres. MMD

Common Stock

Value context
$465.31K
Reported price
$73.73 / share
Traded August 5, 2026Filed August 7, 2026SEC filing
Exercise or conversion

David R. Maraldo

EVP & Pres. MMD

Common Stock

Value context
$845.65K
Reported price
$87.10 / share
Traded August 5, 2026Filed August 7, 2026SEC filing
Exercise or conversion

David R. Maraldo

EVP & Pres. MMD

Common Stock

Value context
$227.53K
Reported price
$84.71 / share
Traded August 5, 2026Filed August 7, 2026SEC filing
Exercise or conversion

David R. Maraldo

EVP & Pres. MMD

Stock Option (Right to Buy)

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
$73.73 exercise / conversion price
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded August 5, 2026Filed August 7, 2026SEC filing
Exercise or conversion

David R. Maraldo

EVP & Pres. MMD

Stock Option (Right to Buy)

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
$87.10 exercise / conversion price
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded August 5, 2026Filed August 7, 2026SEC filing
Exercise or conversion

David R. Maraldo

EVP & Pres. MMD

Stock Option (Right to Buy)

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
$84.71 exercise / conversion price
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded August 5, 2026Filed August 7, 2026SEC filing
Exercise or conversion

David Michael Williams

EVP,Chief Info&Digital Officer

Common Stock

Value context
$357.05K
Reported price
$77.62 / share
Traded August 5, 2026Filed August 7, 2026SEC filing
Exercise or conversion

David Michael Williams

EVP,Chief Info&Digital Officer

Common Stock

Value context
$1.02M
Reported price
$75.36 / share
Traded August 5, 2026Filed August 7, 2026SEC filing
Exercise or conversion

David Michael Williams

EVP,Chief Info&Digital Officer

Common Stock

Value context
$2.56M
Reported price
$73.73 / share
Traded August 5, 2026Filed August 7, 2026SEC filing
Exercise or conversion

David Michael Williams

EVP,Chief Info&Digital Officer

Stock Option (Right to Buy)

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
$77.62 exercise / conversion price
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded August 5, 2026Filed August 7, 2026SEC filing
Exercise or conversion

David Michael Williams

EVP,Chief Info&Digital Officer

Stock Option (Right to Buy)

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
$75.36 exercise / conversion price
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded August 5, 2026Filed August 7, 2026SEC filing
Exercise or conversion

David Michael Williams

EVP,Chief Info&Digital Officer

Stock Option (Right to Buy)

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
$73.73 exercise / conversion price
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded August 5, 2026Filed August 7, 2026SEC filing
Award disclosed

Christine E. Seidman

Director

Phantom Stock

Derivative security · not the ordinary share price.

Value context
$8.13K
Reported price
$128.50 / derivative unit
Traded June 30, 2026Filed July 1, 2026SEC filing
Reporting insiderSecurity / transactionAmount / priceValueTraded / disclosedSource
DirectorPhantom StockGrant or awardDerivative units56$145.31 / derivative unit$8.12KSep 30Filed Oct 1 · 1d laterSEC filing
DirectorPhantom StockGrant or awardDerivative units112$145.31 / derivative unit$16.25KSep 30Filed Oct 1 · 1d laterSEC filing
DirectorPhantom StockGrant or awardDerivative units206$145.31 / derivative unit$30KSep 30Filed Oct 1 · 1d laterSEC filing
EVP, General CounselCommon StockOption exercise or conversion41,494$117.89 / share$4.89MAug 12Filed Aug 13 · 1d laterSEC filing
EVP, General CounselCommon StockOption exercise or conversion13,433$84.71 / share$1.14MAug 12Filed Aug 13 · 1d laterSEC filing
EVP, General CounselStock Option (Right to Buy)Option exercise or conversionDerivative units41,494$117.89 exercise / conversion priceNot a separate purchaseAug 12Filed Aug 13 · 1d laterSEC filing
EVP, General CounselStock Option (Right to Buy)Option exercise or conversionDerivative units13,433$84.71 exercise / conversion priceNot a separate purchaseAug 12Filed Aug 13 · 1d laterSEC filing
EVP & Pres. MMDCommon StockOption exercise or conversion6,311$73.73 / share$465.31KAug 5Filed Aug 7 · 2d laterSEC filing
EVP & Pres. MMDCommon StockOption exercise or conversion9,709$87.10 / share$845.65KAug 5Filed Aug 7 · 2d laterSEC filing
EVP & Pres. MMDCommon StockOption exercise or conversion2,686$84.71 / share$227.53KAug 5Filed Aug 7 · 2d laterSEC filing
EVP & Pres. MMDStock Option (Right to Buy)Option exercise or conversionDerivative units6,311$73.73 exercise / conversion priceNot a separate purchaseAug 5Filed Aug 7 · 2d laterSEC filing
EVP & Pres. MMDStock Option (Right to Buy)Option exercise or conversionDerivative units9,709$87.10 exercise / conversion priceNot a separate purchaseAug 5Filed Aug 7 · 2d laterSEC filing
EVP & Pres. MMDStock Option (Right to Buy)Option exercise or conversionDerivative units2,686$84.71 exercise / conversion priceNot a separate purchaseAug 5Filed Aug 7 · 2d laterSEC filing
EVP,Chief Info&Digital OfficerCommon StockOption exercise or conversion4,600$77.62 / share$357.05KAug 5Filed Aug 7 · 2d laterSEC filing
EVP,Chief Info&Digital OfficerCommon StockOption exercise or conversion13,542$75.36 / share$1.02MAug 5Filed Aug 7 · 2d laterSEC filing
EVP,Chief Info&Digital OfficerCommon StockOption exercise or conversion34,705$73.73 / share$2.56MAug 5Filed Aug 7 · 2d laterSEC filing
EVP,Chief Info&Digital OfficerStock Option (Right to Buy)Option exercise or conversionDerivative units4,600$77.62 exercise / conversion priceNot a separate purchaseAug 5Filed Aug 7 · 2d laterSEC filing
EVP,Chief Info&Digital OfficerStock Option (Right to Buy)Option exercise or conversionDerivative units13,542$75.36 exercise / conversion priceNot a separate purchaseAug 5Filed Aug 7 · 2d laterSEC filing
EVP,Chief Info&Digital OfficerStock Option (Right to Buy)Option exercise or conversionDerivative units34,705$73.73 exercise / conversion priceNot a separate purchaseAug 5Filed Aug 7 · 2d laterSEC filing
DirectorPhantom StockGrant or awardDerivative units63$128.50 / derivative unit$8.13KJun 30Filed Jul 1 · 1d laterSEC filing

Showing the latest 20 of 107 trades. Show all 107 trades

Congress transactions 10

All Congress filings
Purchase disclosed

Merck & Company, Inc. Common Stock (MRK) · Stock

The filing reports a purchase for the member.

Maria Elvira Salazar official portraitMaria Elvira SalazarReporting House member
Reported amount
$15,001 – $50,000Reported range; exact amount not disclosed.
Trade date
August 19, 2026
Filed September 9, 2026 · 21d laterOriginal report
Purchase disclosed

Merck & Company, Inc. Common Stock (MRK) · Stock

The filing reports a purchase for the member.

Maria Elvira Salazar official portraitMaria Elvira SalazarReporting House member
Reported amount
$15,001 – $50,000Reported range; exact amount not disclosed.
Trade date
August 19, 2026
Filed September 9, 2026 · 21d laterOriginal report
Full sale disclosed

Merck & Company, Inc. Common Stock (new) · Stock

The filing reports a full sale for the member.

AAAlan ArmstrongReporting Senate member
Reported amount
$15,001 – $50,000Reported range; exact amount not disclosed.
Trade date
March 27, 2026
Filed July 21, 2026 · 116d laterOriginal report
Purchase disclosed

Merck & Company, Inc. Common Stock (MRK) · Stock

The filing reports a purchase for a joint account.

Josh Gottheimer official portraitJosh GottheimerReporting House member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
February 4, 2026
Filed March 16, 2026 · 40d laterOriginal report
Sale disclosed

Merck & Company, Inc. Common Stock (MRK) · Stock

The filing reports a sale for a joint account.

Julie Johnson official portraitJulie JohnsonReporting House member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
December 18, 2025
Filed January 15, 2026 · 28d laterOriginal report
Purchase disclosed

Merck & Company, Inc. Common Stock (MRK) · Stock

The filing reports a purchase for the member.

Gilbert Cisneros official portraitGilbert CisnerosReporting House member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
December 19, 2025
Filed January 12, 2026 · 24d laterOriginal report
Purchase disclosed

Merck & Company, Inc. Common Stock (MRK) · Stock

The filing reports a purchase for the member.

Gilbert Cisneros official portraitGilbert CisnerosReporting House member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
November 18, 2025
Filed December 15, 2025 · 27d laterOriginal report
Partial sale disclosed

Merck & Company, Inc. Common Stock (MRK) · Stock

The filing reports a partial sale for a joint account.

Julie Johnson official portraitJulie JohnsonReporting House member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
November 13, 2025
Filed December 11, 2025 · 28d laterOriginal report
Sale disclosed

Merck & Company, Inc. Common Stock (MRK) · Stock

The filing reports a sale for a spouse.

Valerie Hoyle official portraitValerie HoyleReporting House member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
September 23, 2025
Filed October 10, 2025 · 17d laterOriginal report
Sale disclosed

Merck & Company, Inc. Common Stock (MRK) · Stock

The filing reports a sale for a spouse.

Sheri Biggs official portraitSheri BiggsReporting House member
Reported amount
$15,001 – $50,000Reported range; exact amount not disclosed.
Trade date
March 19, 2025
Filed October 5, 2025 · 200d laterOriginal report
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Why this buying score?

No qualifying common-equity purchases

No eligible common-equity purchase is public by this cutoff within 180 transaction-date days. Other instruments, exercises and routine activity do not contribute purchase points.

+0 pts

This score describes qualifying insider purchases at issuer level. Read the methodology

Sources and coverage

Limited filing history · Market-wide discovery does not establish complete company history. View coverage
Source
SEC EDGAR · Form 4
Issuer CIK
0000310158
Latest public acceptance
Oct 1, 2026, 05:52 PM UTC
Score calculated
Oct 8, 2026, 12:03 AM UTC
Parser
form4-parser-1.5
Classifier
form4-classifier-1.1
Scoring methodology
insider-experimental-1.1
Availability
Public filing time, not trade date

Open a transaction's SEC filing for the primary evidence. A code P may describe an open-market or private purchase; classification is not proof of intent.

Insider activity can have many explanations. Signal Strength is not a probability of profit or a recommendation to trade.