Form4insider filings, from the source

SEC Form 4 · accession 0000909832-26-000074

COSTCO WHOLESALE CORP /NEW · COST

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner
James C Klauer
Officer — Executive Vice President
Period of report
Sep 10, 2026
Accepted (ET)
Sep 14, 2026 · 5:23 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0000909832

Table I — non-derivative securities

SecurityDateCodeSharesPriceA/DOwned afterD/INature of ownership
Common StockF1,F2Sep 10, 2026A4,129$0.00A48,966D
Common StockSep 10, 2026F936$902.38D48,030D
Common Stockholding———99IBy Spouse

Table II — derivative securities

No Table II lines on this filing.

Explanation of responses