Filings news · COST
Costco filings
Notes on Costco's new 8-K reports, insider trades on Form 4, and large-holder reports. For the business itself, see the Costco company file.
- Oct 164:52 PM ET
8-K
Costco files an 8-K on director or officer changes
Costco filed a Form 8-K on Oct 16, 2026 at 4:52 PM ET under Item 5.02 (Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers).
- Oct 147:00 PM ET
Form 4
Costco Executive Vice President William Richard Wilcox reports selling 1,100 shares
The filing reports 1,100 shares in an open-market or private sale (code S) at $958.21, about $1.1 million in total.
- Oct 144:16 PM ET
8-K
Costco files an 8-K on other events
Costco filed a Form 8-K on Oct 14, 2026 at 4:16 PM ET under Item 8.01 (Other Events).
- Sep 305:52 PM ET
Form 4
Costco Sr. Executive Vice President Caton Frates reports selling about 801 shares
The filing reports about 801 shares in an open-market or private sale (code S) at $915.93, about $733,328 in total.
- Sep 305:48 PM ET
Form 4
Costco Executive Vice President Claudine Adamo reports selling 2,200 shares
The filing reports 2,200 shares in an open-market or private sale (code S) at $915.93, about $2.0 million in total.