Sarah Catherine George - 12 Mar 2026 Form 4 Insider Report for COSTCO WHOLESALE CORP /NEW (COST)

Signature
/s/ Alejandro Torres, Attorney-in-Fact
Issuer symbol
COST
Transactions as of
12 Mar 2026
Net transactions value
$0
Form type
4
Filing time
13 Mar 2026, 16:12:33 UTC
Previous filing
11 Mar 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
George Sarah Catherine Executive Vice President 999 LAKE DRIVE, ISSAQUAH /s/ Alejandro Torres, Attorney-in-Fact 13 Mar 2026 0002112687

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction COST Common Stock Discretionary transaction in accordance with Rule 16b-3(f) resulting in acquisition or disposition of issuer securities -642 -100% $991.21* 0 12 Mar 2026 By 401(k) F1
holding COST Common Stock 1,401 12 Mar 2026 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Reflects a transaction by which the reporting person through an intra-plan transfer disposed of the 642.1252 shares of common stock previously reported as beneficially owned under Costco's 401(k) plan, pursuant to the company's policy prohibiting executive officers from participating in the common stock fund.