COST
Costco Wholesale Corporation$991.05-6.96 (-0.70%)Prev Close$998.01·MCap$442.69B·P/E51.98·Vol567.5K·Yield0.01%
▲
Buys (12M)
0
$0.00
▼
Sells (12M)
31
$49.36M
◆
Net Activity
Net Seller
$49.36M
●
Active Insiders
15
last 12 mo
Over the past 12 months, insider activity at Costco Wholesale Corporation (COST) has been exclusively selling, with 0 insider purchases totaling $0.00 and 31 insider sales totaling $49.36M. The most recent insider transaction was by Frates Caton (officer: Executive Vice President), who sold $695.1K worth of shares on Apr 1, 2026. Costco Wholesale Corporation operates in the Consumer Defensive sector, within the Discount Stores industry, with a market cap of $442.69B.
COST Insider Trading Activity
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Apr 1, 2026 | Frates Caton | officer: Executive Vice President | Sell | 700 | $993.00 | $695.1K | 5,815 |
| Mar 11, 2026 | Adamo Claudine | officer: Executive Vice President | Sell | 730 | $1003.02 | $732.2K | 6,121 |
| Jan 23, 2026 | Jones Teresa A. | officer: Executive Vice President | Sell | 850 | $986.26 | $838.3K | 4,228 |
| Jan 21, 2026 | Jones Teresa A. | Executive Vice President | Sell | 850 | $986.26 | $838.3K | 0 |
| Jan 20, 2026 | DECKER SUSAN L | Director | Sell | 458 | $955.00 | $437.4K | 0 |
| Jan 14, 2026 | Klauer James C | Executive Vice President | Sell | 1,500 | $939.00 | $1.41M | 0 |
| Jan 12, 2026 | Miller Russell D | Sr. Executive Vice President | Sell | 1,500 | $916.32 | $1.37M | 0 |
| Dec 29, 2025 | POLIT JAVIER | Executive Vice President | Sell | 2,607 | $866.38 | $2.26M | 0 |
| Nov 7, 2025 | Wilcox William Richard | Executive Vice President | Sell | 2,400 | $930.13 | $2.23M | 0 |
| Oct 22, 2025 | Klauer James C | Executive Vice President | Sell | 918 | $944.01 | $866.6K | 0 |
| Oct 22, 2025 | Vachris Roland Michael | President and CEO | Sell | 2,653 | $944.61 | $2.51M | 0 |
| Oct 22, 2025 | Adamo Claudine | Executive Vice President | Sell | 2,919 | $936.26 | $2.73M | 0 |
| Oct 22, 2025 | POLIT JAVIER | Executive Vice President | Sell | 1,169 | $944.10 | $1.10M | 0 |
| Oct 22, 2025 | MILLERCHIP GARY | Executive Vice President | Sell | 813 | $945.11 | $768.4K | 0 |
| Oct 22, 2025 | Frates Caton | Executive Vice President | Sell | 2,769 | $944.57 | $2.62M | 0 |
| Oct 22, 2025 | Sullivan John Christopher | Executive VP | Sell | 2,514 | $944.51 | $2.37M | 0 |
| Oct 22, 2025 | Barbre Tiffany Marie | Insider | Sell | 1,782 | $937.53 | $1.67M | 0 |
| Sep 29, 2025 | Miller Russell D | Sr. Executive Vice President | Sell | 3,381 | $915.00 | $3.09M | 0 |
| Sep 29, 2025 | Frates Caton | Executive Vice President | Sell | 1,540 | $910.02 | $1.40M | 0 |
| Sep 10, 2025 | Rubanenko Yoram | Executive Vice President | Sell | 1,746 | $956.24 | $1.67M | 0 |
| Sep 10, 2025 | Callans Patrick J | Executive Vice President | Sell | 950 | $955.95 | $908.2K | 0 |
| Sep 10, 2025 | Frates Caton | Executive Vice President | Sell | 1,271 | $956.35 | $1.22M | 0 |
| Sep 10, 2025 | Klauer James C | Executive Vice President | Sell | 958 | $956.58 | $916.4K | 0 |
| Sep 10, 2025 | Miller Russell D | Sr. Executive Vice President | Sell | 1,735 | $956.34 | $1.66M | 0 |
| Sep 10, 2025 | Jones Teresa A. | Executive Vice President | Sell | 1,503 | $956.49 | $1.44M | 0 |
| Sep 10, 2025 | Riel Pierre | Executive Vice President | Sell | 1,608 | $956.50 | $1.54M | 0 |
| Aug 20, 2025 | Jones Teresa A. | Executive Vice President | Sell | 600 | $992.05 | $595.2K | 0 |
| Jul 14, 2025 | Rubanenko Yoram | Executive Vice President | Sell | 4,000 | $974.96 | $3.90M | 0 |
| Jun 18, 2025 | DECKER SUSAN L | Director | Sell | 547 | $980.00 | $536.1K | 0 |
| Jun 9, 2025 | Callans Patrick J | Executive Vice President | Sell | 3,000 | $1002.77 | $3.01M | 0 |
| Jun 6, 2025 | Riel Pierre | Executive Vice President | Sell | 2,000 | $1014.15 | $2.03M | 0 |
| Mar 27, 2025 | MILLERCHIP GARY | Executive Vice President | Sell | 1,100 | $940.01 | $1.03M | 0 |
| Mar 24, 2025 | Adamo Claudine | Executive Vice President | Sell | 900 | $922.56 | $830.3K | 0 |
| Mar 18, 2025 | Frates Caton | Executive Vice President | Sell | 850 | $900.25 | $765.2K | 0 |
| Mar 11, 2025 | Vachris Roland Michael | President and CEO | Sell | 3,600 | $931.00 | $3.35M | 0 |
| Mar 11, 2025 | MILLERCHIP GARY | Executive Vice President | Sell | 1,147 | $930.70 | $1.07M | 0 |
| Oct 24, 2024 | GALANTI RICHARD A | Executive Vice President | Sell | 1,416 | $894.97 | $1.27M | 0 |
| Oct 22, 2024 | Hines Daniel M. | Insider | Sell | 878 | $894.33 | $785.2K | 0 |
| Oct 22, 2024 | Callans Patrick J | Executive Vice President | Sell | 4,121 | $893.45 | $3.68M | 0 |
| Oct 22, 2024 | Jones Teresa A. | Executive Vice President | Sell | 1,975 | $894.31 | $1.77M | 0 |
| Oct 22, 2024 | Vachris Roland Michael | President and CEO | Sell | 1,731 | $893.42 | $1.55M | 0 |
| Oct 22, 2024 | Sullivan John Christopher | Executive VP | Sell | 2,520 | $893.79 | $2.25M | 0 |
| Oct 22, 2024 | MILLERCHIP GARY | Executive Vice President | Sell | 313 | $893.64 | $279.7K | 0 |
| Oct 22, 2024 | Adamo Claudine | Executive Vice President | Sell | 368 | $893.82 | $328.9K | 0 |
| Oct 22, 2024 | POLIT JAVIER | Executive Vice President | Sell | 674 | $893.58 | $602.3K | 0 |
| Oct 22, 2024 | Frates Caton | Executive Vice President | Sell | 765 | $894.23 | $684.1K | 0 |
| Oct 22, 2024 | Klauer James C | Executive Vice President | Sell | 1,097 | $893.65 | $980.3K | 0 |
| Oct 15, 2024 | Riel Pierre | Executive Vice President | Sell | 2,000 | $896.71 | $1.79M | 0 |
| Oct 11, 2024 | Miller Russell D | Sr. Executive Vice President | Sell | 4,400 | $891.15 | $3.92M | 0 |
| Sep 30, 2024 | Callans Patrick J | Executive Vice President | Sell | 2,500 | $893.94 | $2.23M | 0 |
Showing 1–50 of 163
1 / 4
COST Insider Buying Activity
The following table shows recent insider purchases of Costco Wholesale Corporation (COST) stock reported via SEC Form 4 filings.
No insider buying activity found for COST in the last 12 months.
COST Insider Selling Activity
The following table shows recent insider sales of Costco Wholesale Corporation (COST) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Apr 1, 2026 | Frates Caton | officer: Executive Vice President | Sell | 700 | $993.00 | $695.1K | 5,815 |
| Mar 11, 2026 | Adamo Claudine | officer: Executive Vice President | Sell | 730 | $1003.02 | $732.2K | 6,121 |
| Jan 23, 2026 | Jones Teresa A. | officer: Executive Vice President | Sell | 850 | $986.26 | $838.3K | 4,228 |
| Jan 21, 2026 | Jones Teresa A. | Executive Vice President | Sell | 850 | $986.26 | $838.3K | 0 |
| Jan 20, 2026 | DECKER SUSAN L | Director | Sell | 458 | $955.00 | $437.4K | 0 |
| Jan 14, 2026 | Klauer James C | Executive Vice President | Sell | 1,500 | $939.00 | $1.41M | 0 |
| Jan 12, 2026 | Miller Russell D | Sr. Executive Vice President | Sell | 1,500 | $916.32 | $1.37M | 0 |
| Dec 29, 2025 | POLIT JAVIER | Executive Vice President | Sell | 2,607 | $866.38 | $2.26M | 0 |
| Nov 7, 2025 | Wilcox William Richard | Executive Vice President | Sell | 2,400 | $930.13 | $2.23M | 0 |
| Oct 22, 2025 | Klauer James C | Executive Vice President | Sell | 918 | $944.01 | $866.6K | 0 |
| Oct 22, 2025 | Vachris Roland Michael | President and CEO | Sell | 2,653 | $944.61 | $2.51M | 0 |
| Oct 22, 2025 | Adamo Claudine | Executive Vice President | Sell | 2,919 | $936.26 | $2.73M | 0 |
| Oct 22, 2025 | POLIT JAVIER | Executive Vice President | Sell | 1,169 | $944.10 | $1.10M | 0 |
| Oct 22, 2025 | MILLERCHIP GARY | Executive Vice President | Sell | 813 | $945.11 | $768.4K | 0 |
| Oct 22, 2025 | Frates Caton | Executive Vice President | Sell | 2,769 | $944.57 | $2.62M | 0 |
| Oct 22, 2025 | Sullivan John Christopher | Executive VP | Sell | 2,514 | $944.51 | $2.37M | 0 |
| Oct 22, 2025 | Barbre Tiffany Marie | Insider | Sell | 1,782 | $937.53 | $1.67M | 0 |
| Sep 29, 2025 | Miller Russell D | Sr. Executive Vice President | Sell | 3,381 | $915.00 | $3.09M | 0 |
| Sep 29, 2025 | Frates Caton | Executive Vice President | Sell | 1,540 | $910.02 | $1.40M | 0 |
| Sep 10, 2025 | Rubanenko Yoram | Executive Vice President | Sell | 1,746 | $956.24 | $1.67M | 0 |
| Sep 10, 2025 | Callans Patrick J | Executive Vice President | Sell | 950 | $955.95 | $908.2K | 0 |
| Sep 10, 2025 | Frates Caton | Executive Vice President | Sell | 1,271 | $956.35 | $1.22M | 0 |
| Sep 10, 2025 | Klauer James C | Executive Vice President | Sell | 958 | $956.58 | $916.4K | 0 |
| Sep 10, 2025 | Miller Russell D | Sr. Executive Vice President | Sell | 1,735 | $956.34 | $1.66M | 0 |
| Sep 10, 2025 | Jones Teresa A. | Executive Vice President | Sell | 1,503 | $956.49 | $1.44M | 0 |
| Sep 10, 2025 | Riel Pierre | Executive Vice President | Sell | 1,608 | $956.50 | $1.54M | 0 |
| Aug 20, 2025 | Jones Teresa A. | Executive Vice President | Sell | 600 | $992.05 | $595.2K | 0 |
| Jul 14, 2025 | Rubanenko Yoram | Executive Vice President | Sell | 4,000 | $974.96 | $3.90M | 0 |
| Jun 18, 2025 | DECKER SUSAN L | Director | Sell | 547 | $980.00 | $536.1K | 0 |
| Jun 9, 2025 | Callans Patrick J | Executive Vice President | Sell | 3,000 | $1002.77 | $3.01M | 0 |
| Jun 6, 2025 | Riel Pierre | Executive Vice President | Sell | 2,000 | $1014.15 | $2.03M | 0 |
| Mar 27, 2025 | MILLERCHIP GARY | Executive Vice President | Sell | 1,100 | $940.01 | $1.03M | 0 |
| Mar 24, 2025 | Adamo Claudine | Executive Vice President | Sell | 900 | $922.56 | $830.3K | 0 |
| Mar 18, 2025 | Frates Caton | Executive Vice President | Sell | 850 | $900.25 | $765.2K | 0 |
| Mar 11, 2025 | Vachris Roland Michael | President and CEO | Sell | 3,600 | $931.00 | $3.35M | 0 |
| Mar 11, 2025 | MILLERCHIP GARY | Executive Vice President | Sell | 1,147 | $930.70 | $1.07M | 0 |
| Oct 24, 2024 | GALANTI RICHARD A | Executive Vice President | Sell | 1,416 | $894.97 | $1.27M | 0 |
| Oct 22, 2024 | Hines Daniel M. | Insider | Sell | 878 | $894.33 | $785.2K | 0 |
| Oct 22, 2024 | Callans Patrick J | Executive Vice President | Sell | 4,121 | $893.45 | $3.68M | 0 |
| Oct 22, 2024 | Jones Teresa A. | Executive Vice President | Sell | 1,975 | $894.31 | $1.77M | 0 |
| Oct 22, 2024 | Vachris Roland Michael | President and CEO | Sell | 1,731 | $893.42 | $1.55M | 0 |
| Oct 22, 2024 | Sullivan John Christopher | Executive VP | Sell | 2,520 | $893.79 | $2.25M | 0 |
| Oct 22, 2024 | MILLERCHIP GARY | Executive Vice President | Sell | 313 | $893.64 | $279.7K | 0 |
| Oct 22, 2024 | Adamo Claudine | Executive Vice President | Sell | 368 | $893.82 | $328.9K | 0 |
| Oct 22, 2024 | POLIT JAVIER | Executive Vice President | Sell | 674 | $893.58 | $602.3K | 0 |
| Oct 22, 2024 | Frates Caton | Executive Vice President | Sell | 765 | $894.23 | $684.1K | 0 |
| Oct 22, 2024 | Klauer James C | Executive Vice President | Sell | 1,097 | $893.65 | $980.3K | 0 |
| Oct 15, 2024 | Riel Pierre | Executive Vice President | Sell | 2,000 | $896.71 | $1.79M | 0 |
| Oct 11, 2024 | Miller Russell D | Sr. Executive Vice President | Sell | 4,400 | $891.15 | $3.92M | 0 |
| Sep 30, 2024 | Callans Patrick J | Executive Vice President | Sell | 2,500 | $893.94 | $2.23M | 0 |