Company
COST · CIK 0000909832
Acquisition (code A) of 4,129 shares at $0 per share.
Reporting Person Adamo Claudine · Officer Title Executive Vice President · Transaction Code A
Traded Sep 10, 2026 · Disclosed Sep 14, 2026
Source: SEC Form 4 · 0000909832-26-000068 · filed 2026-09-14 · View filing →
Disposition (code F) of 916.685 shares at $902.38 per share.
Reporting Person Adamo Claudine · Officer Title Executive Vice President · Transaction Code F
Traded Sep 10, 2026 · Disclosed Sep 14, 2026
Source: SEC Form 4 · 0000909832-26-000068 · filed 2026-09-14 · View filing →
Acquisition (code A) of 4,552 shares at $0 per share.
Reporting Person Frates Caton · Officer Title Executive Vice President · Transaction Code A
Traded Sep 10, 2026 · Disclosed Sep 14, 2026
Source: SEC Form 4 · 0000909832-26-000070 · filed 2026-09-14 · View filing →
Disposition (code F) of 1,654.363 shares at $902.38 per share.
Reporting Person Frates Caton · Officer Title Executive Vice President · Transaction Code F
Traded Sep 10, 2026 · Disclosed Sep 14, 2026
Source: SEC Form 4 · 0000909832-26-000070 · filed 2026-09-14 · View filing →
Acquisition (code A) of 4,129 shares at $0 per share.
Reporting Person Jones Teresa A. · Officer Title Executive Vice President · Transaction Code A
Traded Sep 10, 2026 · Disclosed Sep 14, 2026
Source: SEC Form 4 · 0000909832-26-000072 · filed 2026-09-14 · View filing →
Disposition (code F) of 1,458.535 shares at $902.38 per share.
Reporting Person Jones Teresa A. · Officer Title Executive Vice President · Transaction Code F
Traded Sep 10, 2026 · Disclosed Sep 14, 2026
Source: SEC Form 4 · 0000909832-26-000072 · filed 2026-09-14 · View filing →
Acquisition (code A) of 4,129 shares at $0 per share.
Reporting Person Klauer James C · Officer Title Executive Vice President · Transaction Code A
Traded Sep 10, 2026 · Disclosed Sep 14, 2026
Source: SEC Form 4 · 0000909832-26-000074 · filed 2026-09-14 · View filing →
Disposition (code F) of 936.115 shares at $902.38 per share.
Reporting Person Klauer James C · Officer Title Executive Vice President · Transaction Code F
Traded Sep 10, 2026 · Disclosed Sep 14, 2026
Source: SEC Form 4 · 0000909832-26-000074 · filed 2026-09-14 · View filing →
Acquisition (code A) of 4,552 shares at $0 per share.
Reporting Person Riel Pierre · Officer Title Executive Vice President · Transaction Code A
Traded Sep 10, 2026 · Disclosed Sep 14, 2026
Source: SEC Form 4 · 0000909832-26-000076 · filed 2026-09-14 · View filing →
Disposition (code F) of 1,561.66 shares at $902.38 per share.
Reporting Person Riel Pierre · Officer Title Executive Vice President · Transaction Code F
Traded Sep 10, 2026 · Disclosed Sep 14, 2026
Source: SEC Form 4 · 0000909832-26-000076 · filed 2026-09-14 · View filing →
Acquisition (code A) of 4,129 shares at $0 per share.
Reporting Person Rubanenko Yoram · Officer Title Executive Vice President · Transaction Code A
Traded Sep 10, 2026 · Disclosed Sep 14, 2026
Source: SEC Form 4 · 0000909832-26-000078 · filed 2026-09-14 · View filing →
Disposition (code F) of 1,695.952 shares at $902.38 per share.
Reporting Person Rubanenko Yoram · Officer Title Executive Vice President · Transaction Code F
Traded Sep 10, 2026 · Disclosed Sep 14, 2026
Source: SEC Form 4 · 0000909832-26-000078 · filed 2026-09-14 · View filing →
Acquisition (code A) of 4,129 shares at $0 per share.
Reporting Person Wilcox William Richard · Officer Title Executive Vice President · Transaction Code A
Traded Sep 10, 2026 · Disclosed Sep 14, 2026
Source: SEC Form 4 · 0000909832-26-000080 · filed 2026-09-14 · View filing →
Disposition (code F) of 1,934.609 shares at $902.38 per share.
Reporting Person Wilcox William Richard · Officer Title Executive Vice President · Transaction Code F
Traded Sep 10, 2026 · Disclosed Sep 14, 2026
Source: SEC Form 4 · 0000909832-26-000080 · filed 2026-09-14 · View filing →
Sale.
Filer Rich McCormick · Chamber House · Transaction Type Sale · Asset Type Stock
Traded Jul 30, 2026 · Disclosed Aug 14, 2026FILED +15 DAYS
Source: House Clerk PTR · 20035204 · filed 2026-08-14 · View filing →
Purchase.
Filer Dan Newhouse · Chamber House · District WA04 · Owner Spouse · Transaction Type Purchase · Asset Type Stock
Traded Jul 10, 2026 · Disclosed Jul 17, 2026FILED +7 DAYS
Source: House Clerk PTR · 20034998 · filed 2026-07-17 · View filing →
Purchase.
Filer Daniel Milton Newhouse · Chamber House · District WA04 · Owner Spouse · Transaction Type Purchase · Asset Type Stock
Traded Jul 10, 2026 · Disclosed Jul 17, 2026FILED +7 DAYS
Source: House Clerk PTR · 20034998 · filed 2026-07-17 · View filing →
Purchase.
Filer Markwayne Mullin · Chamber Senate · District OK · Owner Joint · Transaction Type Purchase · Asset Type Stock
Traded Dec 29, 2025 · Disclosed Jan 16, 2026FILED +18 DAYS
Source: Senate eFD PTR · b195126e-7bb2-4d54-baf5-e6fc8e7a0165 · filed 2026-01-16 · View filing →
Purchase.
Filer Markwayne Mullin · Chamber Senate · District OK · Owner Joint · Transaction Type Purchase · Asset Type Stock
Traded Dec 29, 2025 · Disclosed Jan 15, 2026FILED +17 DAYS
Source: Senate eFD PTR · b195126e-7bb2-4d54-baf5-e6fc8e7a0165 · filed 2026-01-15 · View filing →
Purchase.
Filer John Boozman · Chamber Senate · District AR · Owner Joint · Transaction Type Purchase · Asset Type Stock
Traded Oct 9, 2025 · Disclosed Nov 15, 2025FILED +37 DAYS
Source: Senate eFD PTR · 97a4172e-e2d9-4dea-9014-d8aa2134d628 · filed 2025-11-15 · View filing →
Purchase.
Filer John Boozman · Chamber Senate · District AR · Owner Joint · Transaction Type Purchase · Asset Type Stock
Traded Oct 9, 2025 · Disclosed Nov 14, 2025FILED +36 DAYS
Source: Senate eFD PTR · 97a4172e-e2d9-4dea-9014-d8aa2134d628 · filed 2025-11-14 · View filing →
Sale.
Filer Shelley Moore Capito · Chamber Senate · District WV · Owner Spouse · Transaction Type Sale · Asset Type Stock
Traded Oct 17, 2025 · Disclosed Nov 4, 2025FILED +18 DAYS
Source: Senate eFD PTR · defd46d8-f9db-46d6-96f9-77bebce203b6 · filed 2025-11-04 · View filing →
Sale (Partial).
Filer Shelley Moore Capito · Chamber Senate · District WV · Owner Spouse · Transaction Type Sale (Partial) · Asset Type Stock
Traded Oct 17, 2025 · Disclosed Nov 3, 2025FILED +17 DAYS
Source: Senate eFD PTR · defd46d8-f9db-46d6-96f9-77bebce203b6 · filed 2025-11-03 · View filing →
COSTCO WHOLESALE CORP /NEW