There have been 50 recent insider transactions recorded for Costco Wholesale Corporation (COST), including 9 buys and 32 sells. Total insider buying was valued at RSU Award and total insider selling at $33.48M.
Notable insiders with recent activity include Frates Caton, George Sarah Catherine, Millerchip Gary. Insider transactions can provide insights into how company leadership views the stock's valuation and future prospects.
Insider Transactions — COST
| Date |
Name |
Role |
Transaction |
Shares |
Avg. Price |
Value |
Shares Owned |
| 2026-04-01 |
Frates Caton |
Executive Vice President |
Informative Sell |
700 |
$993.00 |
$695.1K |
5,815 |
| 2026-03-12 |
George Sarah Catherine |
Executive Vice President |
Discretionary Sell |
642 |
$991.21 |
$636.36K |
- |
| 2026-03-11 |
Millerchip Gary |
Executive Vice President |
Tax Withholding of RSU |
1,154 |
$992.23 |
$1.15M |
15,465 |
| 2026-03-09 |
Adamo Claudine |
Executive Vice President |
Informative Sell |
730 |
$1,003.02 |
$732.2K |
6,121 |
| 2026-03-02 |
George Sarah Catherine |
Executive Vice President |
Unknown |
- |
- |
- |
642 |
| 2026-01-27 |
Raikes Jeffrey S |
Director |
Gift (Given) |
5,115 |
- |
- |
11,293 |
| 2026-01-27 |
Jones Teresa A. |
Executive Vice President |
Gift (Given) |
300 |
- |
- |
3,928 |
| 2026-01-21 |
Jones Teresa A. |
Executive Vice President |
Informative Sell |
850 |
$986.26 |
$838.32K |
4,228 |
| 2026-01-16 |
Decker Susan L |
Director |
Informative Sell |
458 |
$955.00 |
$437.39K |
8,532 |
| 2026-01-16 |
Raimondo Gina Marie |
Director |
RSU Award |
215 |
- |
- |
215 |
| 2026-01-15 |
Raimondo Gina Marie |
Director |
Unknown |
- |
- |
- |
- |
| 2026-01-14 |
Klauer James C |
Executive Vice President |
Informative Sell |
1,500 |
$939.00 |
$1.41M |
44,837 |
| 2026-01-09 |
Miller Russell D |
Sr. Executive Vice President |
Informative Sell |
1,500 |
$916.32 |
$1.37M |
8,240 |
| 2025-12-30 |
Polit Javier |
Executive Vice President |
Informative Sell |
558 |
$862.90 |
$481.5K |
10,190 |
| 2025-12-29 |
Polit Javier |
Executive Vice President |
Informative Sell |
2,049 |
$867.21 |
$1.78M |
10,748 |
| 2025-12-19 |
Denman Kenneth D |
Director |
Gift (Given) |
325 |
- |
- |
5,664 |
| 2025-12-15 |
Decker Susan L |
Director |
Gift (Given) |
2,827 |
- |
- |
8,990 |
| 2025-11-10 |
Raikes Jeffrey S |
Director |
Gift (Given) |
4,120 |
- |
- |
16,408 |
| 2025-11-07 |
Wilcox William Richard |
Executive Vice President |
Informative Sell |
2,400 |
$930.13 |
$2.23M |
2,000 |
| 2025-10-24 |
Adamo Claudine |
Executive Vice President |
Informative Sell |
2,700 |
$935.68 |
$2.53M |
6,851 |
| 2025-10-24 |
Barbre Tiffany Marie |
Other: Principal Accounting Officer |
Informative Sell |
1,239 |
$934.62 |
$1.16M |
5,155 |
| 2025-10-22 |
Stanton John W |
Director |
RSU Award |
286 |
- |
- |
24,090 |
| 2025-10-22 |
Jewell Sarah Mr Sally |
Director |
RSU Award |
286 |
- |
- |
3,613 |
| 2025-10-22 |
Wilderotter Mary Agnes |
Director |
RSU Award |
286 |
- |
- |
3,205 |
| 2025-10-22 |
Raikes Jeffrey S |
Director |
RSU Award |
286 |
- |
- |
20,528 |
| 2025-10-22 |
Decker Susan L |
Director |
RSU Award |
286 |
- |
- |
11,817 |
| 2025-10-22 |
James Hamilton E |
Director |
RSU Award |
286 |
- |
- |
55,538 |
| 2025-10-22 |
Denman Kenneth D |
Director |
RSU Award |
286 |
- |
- |
5,989 |
| 2025-10-22 |
Foulkes Helena |
Director |
RSU Award |
286 |
- |
- |
1,087 |
| 2025-10-22 |
Vachris Roland Michael |
President and CEO |
Tax Withholding of RSU |
1,160 |
$944.68 |
$1.1M |
52,258 |
| 2025-10-22 |
Klauer James C |
Executive Vice President |
Tax Withholding of RSU |
111 |
$944.68 |
$104.86K |
46,337 |
| 2025-10-22 |
Callans Patrick J |
Executive Vice President |
Tax Withholding of RSU |
111 |
$944.68 |
$104.86K |
60,895 |
| 2025-10-22 |
Millerchip Gary |
Executive Vice President |
Tax Withholding of RSU |
500 |
$944.68 |
$472.34K |
16,619 |
| 2025-10-22 |
Polit Javier |
Executive Vice President |
Tax Withholding of RSU |
337 |
$944.68 |
$318.36K |
12,797 |
| 2025-10-22 |
Sullivan John Christopher |
Executive VP |
Tax Withholding of RSU |
366 |
$944.68 |
$345.75K |
47,671 |
| 2025-10-22 |
Adamo Claudine |
Executive Vice President |
Tax Withholding of RSU |
111 |
$944.68 |
$104.86K |
9,551 |
| 2025-10-22 |
Frates Caton |
Executive Vice President |
Tax Withholding of RSU |
706 |
$944.68 |
$666.94K |
6,515 |
| 2025-10-22 |
Barbre Tiffany Marie |
Other: Principal Accounting Officer |
Tax Withholding of RSU |
85 |
$944.68 |
$80.3K |
6,395 |
| 2025-10-06 |
Wilcox William Richard |
Executive Vice President |
Unknown |
- |
- |
- |
4,401 |
| 2025-09-29 |
Frates Caton |
Executive Vice President |
Informative Sell |
1,540 |
$910.02 |
$1.4M |
9,284 |
| 2025-09-29 |
Miller Russell D |
Sr. Executive Vice President |
Informative Sell |
3,381 |
$915.00 |
$3.09M |
9,740 |
| 2025-09-23 |
Miller Russell D |
Sr. Executive Vice President |
Gift (Given) |
2,918 |
- |
- |
2 |
| 2025-09-10 |
Klauer James C |
Executive Vice President |
Tax Withholding of RSU |
958 |
$956.29 |
$916.13K |
47,254 |
| 2025-09-10 |
Miller Russell D |
Sr. Executive Vice President |
Tax Withholding of RSU |
1,735 |
$956.29 |
$1.66M |
2,920 |
| 2025-09-10 |
Callans Patrick J |
Executive Vice President |
Tax Withholding of RSU |
950 |
$956.29 |
$908.48K |
61,812 |
| 2025-09-10 |
Rubanenko Yoram |
Executive Vice President |
Tax Withholding of RSU |
1,746 |
$956.29 |
$1.67M |
8,247 |
| 2025-09-10 |
Adamo Claudine |
Executive Vice President |
Tax Withholding of RSU |
950 |
$956.29 |
$908.48K |
10,256 |
| 2025-09-10 |
Riel Pierre |
Executive Vice President |
Tax Withholding of RSU |
1,608 |
$956.29 |
$1.54M |
11,256 |
| 2025-09-10 |
Frates Caton |
Executive Vice President |
Tax Withholding of RSU |
1,271 |
$956.29 |
$1.22M |
10,824 |
| 2025-09-10 |
Jones Teresa A. |
Executive Vice President |
Tax Withholding of RSU |
1,503 |
$956.29 |
$1.44M |
5,078 |
■ Informative Buy/Sell — open market transaction (most significant)
■ Uninformative Buy — award, option exercise, conversion
■ Uninformative Sell — tax withholding, award vest sale
■ Neutral — gift, trust, expiry
