COST
Costco Wholesale Corp
NASDAQ: COST · CONSUMER DEFENSIVE · DISCOUNT STORES
$982.73
-0.95% today
Updated 2026-10-28
Market cap
$438.30B
P/E ratio
47.65
P/S ratio
1.45x
EPS (TTM)
$20.76
Dividend yield
0.57%
52W range
$840 – $1,095
Volume
2.2M
Costco Wholesale Corp (COST) Insider transactions
Net insider activity
Net buying (14,293 shares)
Buy transactions
27
Sell transactions
73
All transactions
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-09-29 | FRATES, CATON | Sr. Executive Vice President | Sale | 801 | $915.93 | $733659.93 |
| 2026-09-29 | ADAMO, CLAUDINE | Executive Vice President | Sale | 2,200 | $915.93 | $2.02M |
| 2026-09-10 | WILCOX, WILLIAM RICHARD | Executive Vice President | Buy | 4,129 | — | — |
| 2026-09-10 | WILCOX, WILLIAM RICHARD | Executive Vice President | Sale | 1,935 | $902.38 | $1.75M |
| 2026-09-10 | RUBANENKO, YORAM | Executive Vice President | Buy | 4,129 | — | — |
| 2026-09-10 | RUBANENKO, YORAM | Executive Vice President | Sale | 1,696 | $902.38 | $1.53M |
| 2026-09-10 | RIEL, PIERRE | Executive Vice President | Buy | 4,552 | — | — |
| 2026-09-10 | RIEL, PIERRE | Executive Vice President | Sale | 1,562 | $902.38 | $1.41M |
| 2026-09-10 | KLAUER, JAMES C | Executive Vice President | Buy | 4,129 | — | — |
| 2026-09-10 | KLAUER, JAMES C | Executive Vice President | Sale | 936 | $902.38 | $844627.68 |
| 2026-09-10 | JONES, TERESA A. | Executive Vice President | Buy | 4,129 | — | — |
| 2026-09-10 | JONES, TERESA A. | Executive Vice President | Sale | 1,459 | $902.38 | $1.32M |
| 2026-09-10 | FRATES, CATON | Executive Vice President | Buy | 4,552 | — | — |
| 2026-09-10 | FRATES, CATON | Executive Vice President | Sale | 1,654 | $902.38 | $1.49M |
| 2026-09-10 | ADAMO, CLAUDINE | Executive Vice President | Buy | 4,129 | — | — |
| 2026-09-10 | ADAMO, CLAUDINE | Executive Vice President | Sale | 917 | $902.38 | $827482.46 |
| 2026-07-10 | RAIKES, JEFFREY S | Director | Sale | 5,249 | — | — |
| 2026-06-23 | DENMAN, KENNETH D | Director | Sale | 885 | $957.45 | $847345.46 |
| 2026-04-01 | FRATES, CATON | Executive Vice President | Sale | 700 | $993.00 | $695100.00 |
| 2026-03-12 | GEORGE, SARAH CATHERINE | Executive Vice President | Sale | 642 | $991.21 | $636358.68 |
| 2026-03-11 | MILLERCHIP, GARY | Executive Vice President | Sale | 1,154 | $992.23 | $1.15M |
| 2026-03-09 | ADAMO, CLAUDINE | Executive Vice President | Sale | 730 | $1,003.02 | $732205.33 |
| 2026-01-27 | RAIKES, JEFFREY S | Director | Sale | 5,115 | — | — |
| 2026-01-27 | JONES, TERESA A. | Executive Vice President | Sale | 300 | — | — |
| 2026-01-21 | JONES, TERESA A. | Executive Vice President | Sale | 850 | $986.26 | $838318.20 |
| 2026-01-16 | RAIMONDO, GINA MARIE | Director | Buy | 215 | — | — |
| 2026-01-16 | DECKER, SUSAN L | Director | Sale | 458 | $955.00 | $437390.00 |
| 2026-01-14 | KLAUER, JAMES C | Executive Vice President | Sale | 1,500 | $939.00 | $1.41M |
| 2026-01-09 | MILLER, RUSSELL D | Sr. Executive Vice President | Sale | 1,500 | $916.32 | $1.37M |
| 2025-12-30 | POLIT, JAVIER | Executive Vice President | Sale | 558 | $862.90 | $481495.41 |
| 2025-12-29 | POLIT, JAVIER | Executive Vice President | Sale | 2,049 | $867.21 | $1.78M |
| 2025-12-19 | DENMAN, KENNETH D | Director | Sale | 325 | — | — |
| 2025-12-15 | DECKER, SUSAN L | Director | Sale | 2,827 | — | — |
| 2025-11-10 | RAIKES, JEFFREY S | Director | Sale | 4,120 | — | — |
| 2025-11-07 | WILCOX, WILLIAM RICHARD | Executive Vice President | Sale | 2,400 | $930.13 | $2.23M |
| 2025-10-24 | BARBRE, TIFFANY MARIE | Principal Accounting Officer | Sale | 1,239 | $934.62 | $1.16M |
| 2025-10-24 | ADAMO, CLAUDINE | Executive Vice President | Sale | 2,700 | $935.68 | $2.53M |
| 2025-10-22 | WILDEROTTER, MARY AGNES | Director | Buy | 286 | — | — |
| 2025-10-22 | VACHRIS, ROLAND MICHAEL | Director, President and CEO | Buy | 13,834 | — | — |
| 2025-10-22 | VACHRIS, ROLAND MICHAEL | Director, President and CEO | Sale | 1,493 | $944.68 | $1.41M |
| 2025-10-22 | VACHRIS, ROLAND MICHAEL | Director, President and CEO | Sale | 1,160 | $944.68 | $1.10M |
| 2025-10-22 | SULLIVAN, JOHN CHRISTOPHER | Executive VP | Buy | 4,654 | — | — |
| 2025-10-22 | SULLIVAN, JOHN CHRISTOPHER | Executive VP | Sale | 585 | $944.68 | $552637.80 |
| 2025-10-22 | SULLIVAN, JOHN CHRISTOPHER | Executive VP | Sale | 573 | $944.68 | $541301.64 |
| 2025-10-22 | SULLIVAN, JOHN CHRISTOPHER | Executive VP | Sale | 569 | $944.68 | $537522.92 |
| 2025-10-22 | SULLIVAN, JOHN CHRISTOPHER | Executive VP | Sale | 421 | $944.68 | $397710.28 |
| 2025-10-22 | SULLIVAN, JOHN CHRISTOPHER | Executive VP | Sale | 366 | $944.68 | $345752.88 |
| 2025-10-22 | STANTON, JOHN W | Director | Buy | 286 | — | — |
| 2025-10-22 | RAIKES, JEFFREY S | Director | Buy | 286 | — | — |
| 2025-10-22 | POLIT, JAVIER | Executive Vice President | Buy | 4,219 | — | — |
| 2025-10-22 | POLIT, JAVIER | Executive Vice President | Sale | 538 | $944.68 | $508237.84 |
| 2025-10-22 | POLIT, JAVIER | Executive Vice President | Sale | 337 | $944.68 | $318357.16 |
| 2025-10-22 | POLIT, JAVIER | Executive Vice President | Sale | 294 | $944.68 | $277735.92 |
| 2025-10-22 | MILLERCHIP, GARY | Executive Vice President | Buy | 6,268 | — | — |
| 2025-10-22 | MILLERCHIP, GARY | Executive Vice President | Sale | 500 | $944.68 | $472340.00 |
| 2025-10-22 | MILLERCHIP, GARY | Executive Vice President | Sale | 313 | $944.68 | $295684.84 |
| 2025-10-22 | KLAUER, JAMES C | Executive Vice President | Sale | 240 | $944.68 | $226723.20 |
| 2025-10-22 | KLAUER, JAMES C | Executive Vice President | Sale | 199 | $944.68 | $187991.32 |
| 2025-10-22 | KLAUER, JAMES C | Executive Vice President | Sale | 191 | $944.68 | $180433.88 |
| 2025-10-22 | KLAUER, JAMES C | Executive Vice President | Sale | 177 | $944.68 | $167208.36 |
| 2025-10-22 | KLAUER, JAMES C | Executive Vice President | Sale | 111 | $944.68 | $104859.48 |
| 2025-10-22 | JEWELL, SARAH MR SALLY | Director | Buy | 286 | — | — |
| 2025-10-22 | JAMES, HAMILTON E | Director | Buy | 286 | — | — |
| 2025-10-22 | FRATES, CATON | Executive Vice President | Sale | 901 | $944.68 | $851156.68 |
| 2025-10-22 | FRATES, CATON | Executive Vice President | Sale | 758 | $944.68 | $716067.44 |
| 2025-10-22 | FRATES, CATON | Executive Vice President | Sale | 706 | $944.68 | $666944.08 |
| 2025-10-22 | FRATES, CATON | Executive Vice President | Sale | 248 | $944.68 | $234280.64 |
| 2025-10-22 | FRATES, CATON | Executive Vice President | Sale | 156 | $944.68 | $147370.08 |
| 2025-10-22 | FOULKES, HELENA | Director | Buy | 286 | — | — |
| 2025-10-22 | DENMAN, KENNETH D | Director | Buy | 286 | — | — |
| 2025-10-22 | DECKER, SUSAN L | Director | Buy | 286 | — | — |
| 2025-10-22 | CALLANS, PATRICK J | Executive Vice President | Sale | 240 | $944.68 | $226723.20 |
| 2025-10-22 | CALLANS, PATRICK J | Executive Vice President | Sale | 199 | $944.68 | $187991.32 |
| 2025-10-22 | CALLANS, PATRICK J | Executive Vice President | Sale | 191 | $944.68 | $180433.88 |
| 2025-10-22 | CALLANS, PATRICK J | Executive Vice President | Sale | 177 | $944.68 | $167208.36 |
| 2025-10-22 | CALLANS, PATRICK J | Executive Vice President | Sale | 111 | $944.68 | $104859.48 |
| 2025-10-22 | BARBRE, TIFFANY MARIE | Principal Accounting Officer | Buy | 2,118 | — | — |
| 2025-10-22 | BARBRE, TIFFANY MARIE | Principal Accounting Officer | Sale | 135 | $944.68 | $127531.80 |
| 2025-10-22 | BARBRE, TIFFANY MARIE | Principal Accounting Officer | Sale | 119 | $944.68 | $112416.92 |
| 2025-10-22 | BARBRE, TIFFANY MARIE | Principal Accounting Officer | Sale | 114 | $944.68 | $107693.52 |
| 2025-10-22 | BARBRE, TIFFANY MARIE | Principal Accounting Officer | Sale | 90 | $944.68 | $85021.20 |
| 2025-10-22 | BARBRE, TIFFANY MARIE | Principal Accounting Officer | Sale | 85 | $944.68 | $80297.80 |
| 2025-10-22 | ADAMO, CLAUDINE | Executive Vice President | Sale | 199 | $944.68 | $187991.32 |
| 2025-10-22 | ADAMO, CLAUDINE | Executive Vice President | Sale | 177 | $944.68 | $167208.36 |
| 2025-10-22 | ADAMO, CLAUDINE | Executive Vice President | Sale | 122 | $944.68 | $115250.96 |
| 2025-10-22 | ADAMO, CLAUDINE | Executive Vice President | Sale | 111 | $944.68 | $104859.48 |
| 2025-10-22 | ADAMO, CLAUDINE | Executive Vice President | Sale | 97 | $944.68 | $91633.96 |
| 2025-09-29 | MILLER, RUSSELL D | Sr. Executive Vice President | Sale | 3,381 | $915.00 | $3.09M |
| 2025-09-29 | FRATES, CATON | Executive Vice President | Sale | 1,540 | $910.02 | $1.40M |
| 2025-09-23 | MILLER, RUSSELL D | Sr. Executive Vice President | Buy | 2,918 | — | — |
| 2025-09-10 | RUBANENKO, YORAM | Executive Vice President | Buy | 4,219 | — | — |
| 2025-09-10 | RUBANENKO, YORAM | Executive Vice President | Sale | 1,746 | $956.29 | $1.67M |
| 2025-09-10 | RIEL, PIERRE | Executive Vice President | Buy | 4,654 | — | — |
| 2025-09-10 | RIEL, PIERRE | Executive Vice President | Sale | 1,608 | $956.29 | $1.54M |
| 2025-09-10 | MILLER, RUSSELL D | Sr. Executive Vice President | Buy | 4,654 | — | — |
| 2025-09-10 | MILLER, RUSSELL D | Sr. Executive Vice President | Sale | 1,735 | $956.29 | $1.66M |
| 2025-09-10 | KLAUER, JAMES C | Executive Vice President | Buy | 4,219 | — | — |
| 2025-09-10 | KLAUER, JAMES C | Executive Vice President | Sale | 958 | $956.29 | $916125.82 |
| 2025-09-10 | JONES, TERESA A. | Executive Vice President | Buy | 4,219 | — | — |
| 2025-09-10 | JONES, TERESA A. | Executive Vice President | Sale | 1,503 | $956.29 | $1.44M |
Frequently asked questions
Are COST insiders buying or selling?
Over the transactions on record, COST insiders have been net sellers, with about $52.20M in stock sold across 73 sales. The entries tagged as buys are stock grants and option exercises recorded at $0, not open-market purchases.
Does insider selling at COST mean the stock will fall?
Not by itself. Most executive selling is pre-scheduled through 10b5-1 plans filed months in advance, and insiders sell for diversification, taxes, and liquidity far more often than out of any view on the price. Insider buying is the stronger signal, especially when several insiders buy around the same time, because there is usually only one reason to put personal cash into the stock.
Which COST insiders are selling the most?
Recent selling is concentrated in a few names. FRATES, CATON accounts for the largest share on record, with about $6.94M sold. Selling by one or two individuals matters less than broad selling across the whole leadership team, which is the pattern worth watching.