Insider trade

Officer received an award of 4,640 MRK derivative securities

Traded May 5, 2026 · Filed May 7, 2026

MerckMRK

4,640
Derivative units

Why it stands out

Compensation award — excluded from discretionary-purchase analysis.

Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell

View the official recordSEC Form 4 — Statement of Changes in Beneficial Ownership

All the details

Dates, kept separate

Transaction date: May 5, 2026
Reporting period: Not applicable
Filed with the SEC: May 7, 2026

OfficerGrant / award

Context

Classification

grant award

Code A — grant or award

Planned / mechanical clue

Footnote references vesting of compensation awards

Only flagged when a footnote says so; never inferred

Source receipt

Record ID: 0000310158-26-000137
Filed / recorded

May 7, 2026, 4:14 PM UTC

Added to OQRO

Oct 2, 2026, 3:52 AM UTC

Parser

form4-xml-v1

Data quality

Verified: identifiers matched exactly

Issuer

Merck & Co., Inc.

Issuer CIK

310158

Ticker

MRK

Reporting person

David Michael Williams

Relationship

Officer

Officer title

EVP,Chief Info&Digital Officer

Security

Restricted Stock Unit

Table

Derivative (Table II)

Transaction date

May 5, 2026

Transaction code

A

Shares / units

4,640

Price per share

$0.00

Acquired / disposed

Acquired (A)

Shares owned after

4,640

Ownership form

Direct

Amendment

No

Footnotes from the filing

Each restricted stock unit represents a contingent right to receive one share of Merck & Co., Inc. common stock.
These restricted stock units vest and are distributed as shares of Merck & Co., Inc. common stock in three equal installments on 5/5/2027, 5/5/2028, and, 5/5/2029.