Insider trade

Officer received an award of 4,552 COST shares

Traded Sep 10, 2026 · Filed Sep 14, 2026

CostcoCOST

4,552
Shares

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: Sep 10, 2026
Reporting period: Not applicable
Filed with the SEC: Sep 14, 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: 0000909832-26-000070
Filed / recorded

Sep 14, 2026, 9:20 PM UTC

Added to OQRO

Oct 2, 2026, 3:52 AM UTC

Parser

form4-xml-v1

Data quality

Verified: identifiers matched exactly

Issuer

COSTCO WHOLESALE CORP /NEW

Issuer CIK

909832

Ticker

COST

Reporting person

Caton Frates

Relationship

Officer

Officer title

Executive Vice President

Security

Common Stock

Table

Non-derivative (Table I)

Transaction date

Sep 10, 2026

Transaction code

A

Shares / units

4,552

Price per share

$0.00

Acquired / disposed

Acquired (A)

Shares owned after

10,367.001

Ownership form

Direct

Amendment

No

Footnotes from the filing

Grant was initially made on October 22, 2025, subject to performance conditions concerning fiscal 2026, which have been deemed satisfied by the Compensation Committee of the Board of Directors. The earned awards vest 20% on the first anniversary of the grant date and an additional 20% vest over each of the ensuing four years based on continued employment with the Company. In addition, under the 2019 Incentive Plan, employees are eligible for accelerated vesting upon the anniversary of their 25th, 30th and 35th years of service.
Not applicable. Grant of Restricted Stock Units.

Around the same time

Officer sold6d ago

~$733KReported value · 800.64 sh @ $915.93

Costco's Sr. Executive Vice President sold $733K of Costco shares. Nobody planned it ahead of time.

Why it stands out Official record

Officer sold6d ago

~$2.02MReported value · 2,200 sh @ $915.93

Costco's Executive Vice President sold $2.02M of Costco shares. Nobody planned it ahead of time.

Why it stands out Official record

Officer plans to sell ~$2.02M of Costco

Planned, from pay7d ago