COST
COSTCO WHOLESALE CORP /NEW
NASDAQ · Consumer Defensive · Discount Stores · US
$895.31
+0.15%0
Insider buys (3m)
1
Insider sells (3m)
-$847.3K
Net value (3m)
-5.8%
Price return (3m)
Form 4 filings
| Date | Insider | Activity | Shares | Price |
|---|---|---|---|---|
| Sep 14, 2026 | Wilcox William Richard · officer: Executive Vice President | F-InKind | 1,935 | $902 |
| Sep 14, 2026 | Adamo Claudine · officer: Executive Vice President | A-Award | 4,129 | $0.00 |
| Sep 14, 2026 | Riel Pierre · officer: Executive Vice President | A-Award | 4,552 | $0.00 |
| Sep 14, 2026 | Wilcox William Richard · officer: Executive Vice President | A-Award | 4,129 | $0.00 |
| Sep 14, 2026 | Jones Teresa A. · officer: Executive Vice President | F-InKind | 1,459 | $902 |
| Sep 14, 2026 | Klauer James C · officer: Executive Vice President | F-InKind | 936 | $902 |
| Sep 14, 2026 | Frates Caton · officer: Executive Vice President | A-Award | 4,552 | $0.00 |
| Sep 14, 2026 | Riel Pierre · officer: Executive Vice President | F-InKind | 1,562 | $902 |
| Sep 14, 2026 | Jones Teresa A. · officer: Executive Vice President | A-Award | 4,129 | $0.00 |
| Sep 14, 2026 | Adamo Claudine · officer: Executive Vice President | F-InKind | 917 | $902 |
| Sep 14, 2026 | Klauer James C · officer: Executive Vice President | A-Award | 4,129 | $0.00 |
| Sep 14, 2026 | Rubanenko Yoram · officer: Executive Vice President | A-Award | 4,129 | $0.00 |
| Sep 14, 2026 | Rubanenko Yoram · officer: Executive Vice President | F-InKind | 1,696 | $902 |
| Sep 14, 2026 | Frates Caton · officer: Executive Vice President | F-InKind | 1,654 | $902 |
| Jun 25, 2026 | DENMAN KENNETH D · director | Sale | 885 | $957 |
| Apr 1, 2026 | Frates Caton · officer: Executive Vice President | Sale | 700 | $993 |
| Mar 13, 2026 | MILLERCHIP GARY · officer: Executive Vice President | F-InKind | 1,154 | $992 |
| Mar 11, 2026 | Adamo Claudine · officer: Executive Vice President | Sale | 730 | $1.0K |
| Jan 23, 2026 | Jones Teresa A. · officer: Executive Vice President | Sale | 850 | $986 |
| Jan 20, 2026 | Raimondo Gina Marie · director | A-Award | 215 | $0.00 |
| Jan 20, 2026 | DECKER SUSAN L · director | Sale | 458 | $955 |
| Jan 15, 2026 | Klauer James C · officer: Executive Vice President | Sale | 1,500 | $939 |
| Jan 12, 2026 | Miller Russell D · officer: Sr. Executive Vice President | Sale | 1,500 | $916 |
| Dec 31, 2025 | POLIT JAVIER · officer: Executive Vice President | Sale | 558 | $863 |
| Dec 31, 2025 | POLIT JAVIER · officer: Executive Vice President | Sale | 2,049 | $867 |
| Nov 12, 2025 | Wilcox William Richard · officer: Executive Vice President | Sale | 2,400 | $930 |
| Oct 24, 2025 | Sullivan John Christopher · officer: Executive VP | F-InKind | 569 | $945 |
| Oct 24, 2025 | Adamo Claudine · officer: Executive Vice President | F-InKind | 177 | $945 |
| Oct 24, 2025 | Adamo Claudine · officer: Executive Vice President | Sale | 2,700 | $936 |
| Oct 24, 2025 | Adamo Claudine · officer: Executive Vice President | F-InKind | 199 | $945 |
Institutional positioning
13F filings over the trailing two quarters
New 522Increased 3491Reduced 3399Sold out 160
| Filer | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Reduced | 34,947,040 | May 13, 2026 |
| BlackRock, Inc. | Reduced | 34,202,834 | Aug 7, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 28,976,605 | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 28,847,448 | May 15, 2026 |
| STATE STREET CORP | Increased | 18,384,951 | Aug 7, 2026 |
| STATE STREET CORP | Increased | 18,152,232 | May 15, 2026 |
| Invesco Ltd. | Increased | 13,989,137 | Aug 14, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 10,705,635 | May 8, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 10,659,224 | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 10,627,472 | Aug 12, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 10,402,555 | Aug 13, 2026 |
| MORGAN STANLEY | Increased | 10,220,437 | Aug 13, 2026 |
| MORGAN STANLEY | Reduced | 9,898,711 | May 15, 2026 |
| INVESCO LTD. | Reduced | 9,315,742 | Jul 15, 2026 |
| BANK OF AMERICA CORP /DE/ | Increased | 7,515,031 | May 18, 2026 |
Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Sep 14, 2026