Latest Institutional Transactions on Costco Wholesale Corp (COST)
This table provides information on the latest institutional transactions involving Costco Wholesale Corp (COST) stock. The table includes the name of the institution, the type of operation (buy or sell), whether options were involved, the number of shares exchanged, the range of values for the transaction, and the number of shares held by the institution after the transaction has occurred.
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Oct 21, 2025
Q3 2025
|
Alpine Bank Wealth Management
Grand Junction, CO |
BUY
|
- |
56+ 5.88% |
$51.3K - $55.7K
|
1.01K
$920K
|
|
|
Oct 20, 2025
Q3 2025
|
Analyst Ims Investment Management Services Ltd.
|
SELL
|
- |
-2.05K- 28.33% |
$1.88M - $2.04M
|
5.19K
$4.74M
|
|
|
Oct 20, 2025
Q3 2025
|
Montz Harcus Wealth Management LLC
|
BUY
|
- |
9+ 3.07% |
$8.24K - $8.95K
|
302
$276K
|
|
|
Oct 20, 2025
Q3 2025
|
Lawson Kroeker Investment Management Inc
|
BUY
|
- |
101+ 8.56% |
$92.5K - $100K
|
1.28K
$1.17M
|
|
|
Oct 20, 2025
Q3 2025
|
Consilium Wealth Advisory, LLC
|
SELL
|
- |
-16- 1.02% |
$14.7K - $15.9K
|
1.56K
$1.42M
|
|
|
Oct 20, 2025
Q3 2025
|
Access Financial Services, Inc.
|
BUY
|
- |
1.68KNew |
$1.54M - $1.67M
|
1.68K
$1.53M
|
|
|
Oct 20, 2025
Q3 2025
|
Segment Wealth Management, LLC
|
SELL
|
- |
-24- 0.11% |
$22K - $23.9K
|
21K
$19.2M
|
|
|
Oct 20, 2025
Q3 2025
|
Harrington Investments, Inc
|
SELL
|
- |
-90- 1.69% |
$82.4K - $89.5K
|
5.24K
$4.78M
|
|
|
Oct 20, 2025
Q3 2025
|
Great Diamond Partners, LLC
|
SELL
|
- |
-26- 5.07% |
$23.8K - $25.9K
|
487
$444K
|
|
|
Oct 20, 2025
Q3 2025
|
Ocean Capital Management, LLC
|
BUY
|
- |
233+ 0.42% |
$213K - $232K
|
55.8K
$50.9M
|
|
|
Oct 20, 2025
Q3 2025
|
Albion Financial Group
|
BUY
|
- |
383+ 1.72% |
$351K - $381K
|
22.6K
$20.6M
|
|
|
Oct 20, 2025
Q3 2025
|
Single Point Partners, LLC
|
BUY
|
- |
19+ 6.51% |
$17.4K - $18.9K
|
311
$284K
|
|
|
Oct 20, 2025
Q3 2025
|
Calamos Advisors LLC
|
SELL
|
- |
-9.7K- 9.21% |
$8.89M - $9.65M
|
95.6K
$87.3M
|
|
|
Oct 20, 2025
Q3 2025
|
Calamos Advisors LLC
|
BUY
|
CALL |
1K+ 100.0% |
$916K - $995K
|
2K
$1.83M
|
|
|
Oct 20, 2025
Q3 2025
|
Calamos Wealth Management LLC
|
BUY
|
- |
1.67K+ 25.4% |
$1.53M - $1.66M
|
8.23K
$7.51M
|
|
|
Oct 20, 2025
Q3 2025
|
Smith, Salley & Associates
|
SELL
|
- |
-60- 15.31% |
$55K - $59.7K
|
332
$303K
|
|
|
Oct 20, 2025
Q3 2025
|
Ascent Group, LLC
|
BUY
|
- |
2.08K+ 15.66% |
$1.91M - $2.07M
|
15.4K
$14M
|
|
|
Oct 20, 2025
Q3 2025
|
Marietta Wealth Management, LLC
|
BUY
|
- |
724+ 5.08% |
$663K - $720K
|
15K
$13.7M
|
|
|
Oct 20, 2025
Q3 2025
|
Tbh Global Asset Management, LLC
Brentwood, TN |
SELL
|
- |
-5- 0.1% |
$4.58K - $4.97K
|
4.9K
$4.48M
|
|
|
Oct 20, 2025
Q3 2025
|
Continuum Advisory, LLC
Eagle, ID |
BUY
|
- |
975+ 15.99% |
$893K - $970K
|
7.07K
$6.45M
|
|
|
Oct 20, 2025
Q3 2025
|
Wealth Quarterback LLC
Toms River, NJ |
SELL
|
- |
-3- 0.14% |
$2.75K - $2.98K
|
2.07K
$1.89M
|
|
|
Oct 20, 2025
Q3 2025
|
James J. Burns & Company, LLC
Melville, NY |
SELL
|
- |
-3- 0.37% |
$2.75K - $2.98K
|
815
$744K
|
|
|
Oct 20, 2025
Q3 2025
|
Mc Glone Suttner Wealth Management, Inc.
Appleton, WI |
SELL
|
- |
-20- 3.27% |
$18.3K - $19.9K
|
591
$539K
|
|
|
Oct 20, 2025
Q3 2025
|
Rooted Wealth Advisors, Inc.
Bourbonnais, IL |
BUY
|
- |
100+ 19.46% |
$91.6K - $99.5K
|
614
$560K
|
|
|
Oct 20, 2025
Q3 2025
|
Virginia Retirement Systems Et Al
Richmond, VA |
SELL
|
- |
-14K- 29.91% |
$12.8M - $13.9M
|
32.8K
$29.9M
|
|
|
Oct 20, 2025
Q3 2025
|
Armstrong, Fleming & Moore, Inc
Washington, DC |
SELL
|
- |
-95- 2.4% |
$87K - $94.5K
|
3.86K
$3.52M
|
|
|
Oct 20, 2025
Q3 2025
|
Lewis Asset Management, LLC
Lafayette, CA |
BUY
|
- |
486+ 17.22% |
$445K - $483K
|
3.31K
$3.02M
|
|
|
Oct 20, 2025
Q3 2025
|
Investment Partners Asset Management, Inc.
Metuchen, NJ |
SELL
|
- |
-14- 1.75% |
$12.8K - $13.9K
|
787
$718K
|
|
|
Oct 20, 2025
Q3 2025
|
Swisher Financial Concepts, Inc.
Westerville, OH |
BUY
|
- |
195+ 36.45% |
$179K - $194K
|
730
$666K
|
|
|
Oct 20, 2025
Q3 2025
|
Sivia Capital Partners, LLC
Mill Valley, CA |
SELL
|
- |
-730- 18.95% |
$669K - $726K
|
3.12K
$2.85M
|
|
|
Oct 20, 2025
Q3 2025
|
Waypoint Wealth Counsel
Atlanta, GA |
SELL
|
- |
-206- 11.16% |
$189K - $205K
|
1.64K
$1.5M
|
|
|
Oct 20, 2025
Q3 2025
|
Weaver Capital Management LLC
Suwanee, GA |
BUY
|
- |
445+ 8.94% |
$408K - $443K
|
5.42K
$4.95M
|
|
|
Oct 20, 2025
Q3 2025
|
First American Bank
Dundee, IL |
BUY
|
- |
41+ 7.06% |
$37.6K - $40.8K
|
622
$568K
|
|
|
Oct 20, 2025
Q3 2025
|
Bravias Capital Group, LLC
Iselin, NJ |
SELL
|
- |
-9- 1.05% |
$8.24K - $8.95K
|
845
$771K
|
|
|
Oct 20, 2025
Q3 2025
|
Life Wealth Investments, LLC
Winter Garden, FL |
BUY
|
- |
363+ 55.34% |
$332K - $361K
|
1.02K
$930K
|
|
|
Oct 20, 2025
Q3 2025
|
Clark Asset Management, LLC
Stratham, NH |
BUY
|
- |
31+ 7.31% |
$28.4K - $30.8K
|
455
$415K
|
|
|
Oct 20, 2025
Q3 2025
|
Kingsman Wealth Management, Inc.
Pensacola, FL |
SELL
|
- |
-1.19K- 14.03% |
$1.09M - $1.18M
|
7.27K
$6.64M
|
|
|
Oct 20, 2025
Q3 2025
|
Monarch Capital Management Inc
|
SELL
|
- |
-1- 0.12% |
$916 - $995
|
853
$778K
|
|
|
Oct 20, 2025
Q3 2025
|
Hamilton Point Investment Advisors, LLC
|
BUY
|
- |
10+ 4.74% |
$9.16K - $9.95K
|
221
$202K
|
|
|
Oct 20, 2025
Q3 2025
|
Davidson Trust CO
|
SELL
|
- |
-52- 0.97% |
$47.6K - $51.7K
|
5.29K
$4.82M
|
|
|
Oct 20, 2025
Q3 2025
|
Moody Lynn & Lieberson, LLC
|
SELL
|
- |
-2.4K- 62.29% |
$2.2M - $2.39M
|
1.45K
$1.33M
|
|
|
Oct 20, 2025
Q3 2025
|
Pinnacle Wealth Management Advisory Group, LLC
|
BUY
|
- |
360+ 6.59% |
$330K - $358K
|
5.82K
$5.31M
|
|
|
Oct 20, 2025
Q3 2025
|
Northwest Capital Management Inc
|
SELL
|
- |
-160- 27.83% |
$147K - $159K
|
415
$379K
|
|
|
Oct 20, 2025
Q3 2025
|
Los Angeles Capital Management LLC
|
SELL
|
- |
-201K- 74.23% |
$184M - $200M
|
69.7K
$63.6M
|
|
|
Oct 20, 2025
Q3 2025
|
Merit Financial Group, LLC
|
BUY
|
- |
516+ 1.6% |
$473K - $513K
|
32.7K
$29.9M
|
|
|
Oct 20, 2025
Q3 2025
|
Seascape Capital Management
Portsmouth, NH |
BUY
|
- |
7+ 1.68% |
$6.41K - $6.96K
|
423
$386K
|
|
|
Oct 20, 2025
Q3 2025
|
3 Chopt Investment Partners, LLC
Richmond, VA |
SELL
|
- |
-49- 3.34% |
$44.9K - $48.7K
|
1.42K
$1.29M
|
|
|
Oct 20, 2025
Q3 2025
|
Quest 10 Wealth Builders, Inc.
Fuquay Varina, VA |
SELL
|
- |
-24- 10.81% |
$22K - $23.9K
|
198
$181K
|
|
|
Oct 20, 2025
Q3 2025
|
Ayrshire Capital Management LLC
|
SELL
|
- |
-1.05K- 12.2% |
$961K - $1.04M
|
7.55K
$6.89M
|
|
|
Oct 20, 2025
Q3 2025
|
Center Star Asset Management, LLC
|
BUY
|
- |
791New |
$725K - $787K
|
791
$722K
|
|