Costco Wholesale Corporation (COST) has 20 known insider and institutional holders on record. The largest holder is JELINEK W CRAIG with 204,365 shares. Other notable holders include MUNGER CHARLES T and BROTMAN JEFFREY H.
Over the last 12 months, insiders have made 60 transactions in COST stock — 11 buys (valued at RSU Award) and 19 sells (valued at $31.61M). Insider selling has exceeded buying during this period.
COST Insider Ownership
Top Holder
JELINEK W CRAIG
204,365 shares
Buys (12 mo)
11
$0.00 value
Sells (12 mo)
19
$31.61M value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Jelinek W Craig |
Director |
204,365 |
2024-12-23 |
|
| 2 |
Munger Charles T |
Director |
168,104 |
2023-10-24 |
|
| 3 |
Brotman Jeffrey H |
Former Chairman of the Board |
73,894 |
2017-08-11 |
|
| 4 |
Callans Patrick J |
Executive Vice President |
60,895 |
2025-10-24 |
|
| 5 |
Mckay John D |
Executive Vice President |
55,761 |
2018-10-30 |
|
| 6 |
James Hamilton E |
Director |
55,538 |
2025-10-24 |
|
| 7 |
Vachris Roland Michael |
President and CEO |
52,258 |
2025-10-24 |
|
| 8 |
Sullivan John Christopher |
Executive VP |
47,671 |
2025-10-24 |
|
| 9 |
Klauer James C |
Executive Vice President |
44,837 |
2026-01-15 |
|
| 10 |
Murphy James P. |
Executive VP |
38,084 |
2022-10-25 |
|
| 11 |
Rose Timothy L. |
Executive VP |
33,025 |
2022-09-14 |
|
| 12 |
Moulton Paul G |
Executive VP |
28,833 |
2021-09-16 |
|
| 13 |
Galanti Richard A |
Executive Vice President |
27,400 |
2024-10-24 |
|
| 14 |
Stanton John W |
Director |
24,090 |
2025-10-24 |
|
| 15 |
Millerchip Gary |
Executive Vice President |
15,465 |
2026-03-13 |
|
| 16 |
Evans Daniel J |
Director |
14,611 |
2017-10-27 |
|
| 17 |
Meisenbach John W |
Director |
13,734 |
2019-10-24 |
|
| 18 |
Hines Daniel M. |
Other: Principal Acctg Officer |
12,186 |
2024-10-24 |
|
| 19 |
Portera Joseph P |
Executive VP |
11,987 |
2021-09-16 |
|
| 20 |
Raikes Jeffrey S |
Director |
11,293 |
2026-01-28 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-04-01 |
Frates Caton |
Executive Vice President |
Informative Sell |
700 |
$993.00 |
$695.1K |
| 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 |
| 2026-03-02 |
George Sarah Catherine |
Executive Vice President |
Unknown |
- |
- |
- |
| 2026-03-09 |
Adamo Claudine |
Executive Vice President |
Informative Sell |
730 |
$1,003.02 |
$732.2K |
| 2026-01-27 |
Jones Teresa A. |
Executive Vice President |
Gift (Given) |
300 |
- |
- |
| 2026-01-27 |
Raikes Jeffrey S |
Director |
Gift (Given) |
5,115 |
- |
- |
| 2026-01-21 |
Jones Teresa A. |
Executive Vice President |
Informative Sell |
850 |
$986.26 |
$838.32K |
| 2026-01-16 |
Raimondo Gina Marie |
Director |
RSU Award |
215 |
- |
- |
| 2026-01-15 |
Raimondo Gina Marie |
Director |
Unknown |
- |
- |
- |
| 2026-01-16 |
Decker Susan L |
Director |
Informative Sell |
458 |
$955.00 |
$437.39K |
| 2026-01-14 |
Klauer James C |
Executive Vice President |
Informative Sell |
1,500 |
$939.00 |
$1.41M |
| 2026-01-09 |
Miller Russell D |
Sr. Executive Vice President |
Informative Sell |
1,500 |
$916.32 |
$1.37M |
| 2025-12-30 |
Polit Javier |
Executive Vice President |
Informative Sell |
558 |
$862.90 |
$481.5K |
| 2025-12-29 |
Polit Javier |
Executive Vice President |
Informative Sell |
2,049 |
$867.21 |
$1.78M |
| 2025-12-19 |
Denman Kenneth D |
Director |
Gift (Given) |
325 |
- |
- |
| 2025-12-15 |
Decker Susan L |
Director |
Gift (Given) |
2,827 |
- |
- |
| 2025-11-07 |
Wilcox William Richard |
Executive Vice President |
Informative Sell |
2,400 |
$930.13 |
$2.23M |
| 2025-11-10 |
Raikes Jeffrey S |
Director |
Gift (Given) |
4,120 |
- |
- |
| 2025-10-24 |
Barbre Tiffany Marie |
Other: Principal Accounting Officer |
Informative Sell |
1,239 |
$934.62 |
$1.16M |
| 2025-10-22 |
Barbre Tiffany Marie |
Other: Principal Accounting Officer |
Tax Withholding of RSU |
85 |
$944.68 |
$80.3K |
| 2025-10-22 |
Frates Caton |
Executive Vice President |
Tax Withholding of RSU |
706 |
$944.68 |
$666.94K |
| 2025-10-24 |
Adamo Claudine |
Executive Vice President |
Informative Sell |
2,700 |
$935.68 |
$2.53M |
| 2025-10-22 |
Adamo Claudine |
Executive Vice President |
Tax Withholding of RSU |
111 |
$944.68 |
$104.86K |
| 2025-10-22 |
Sullivan John Christopher |
Executive VP |
Tax Withholding of RSU |
366 |
$944.68 |
$345.75K |
