Latest Institutional Sells of Costco Wholesale Corp (COST)
This list provides information on the latest institutional transactions involving Costco Wholesale Corp (COST) stock that were sells. The list includes the name of the institution, the number of shares exchanged, the range of values for the transaction, and the number of shares held by the institution after the sale has occurred.
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Nov 13, 2025
Q3 2025
|
Eisler Capital Management Ltd.
London, X0 |
SELL
|
PUT |
-13.1K- 9.1% |
$12M - $13M
|
131K
$119M
|
|
|
Dec 12, 2025
Q3 2025
|
Ctc LLC
|
SELL
|
PUT |
-12.5K- 99.0% |
$11.4M - $12.4M
|
126
$115K
|
|
|
Nov 13, 2025
Q3 2025
|
Capital Counsel LLC
New York, NY |
SELL
|
- |
-11.9K- 4.71% |
$10.9M - $11.9M
|
242K
$221M
|
|
|
Nov 21, 2025
Q3 2025
|
Cibc Private Wealth Group, LLC
|
SELL
|
- |
-11.8K- 9.72% |
$10.8M - $11.8M
|
110K
$100M
|
|
|
Nov 04, 2025
Q3 2025
|
L.M. Kohn & Company
|
SELL
|
- |
-11.6K- 85.63% |
$10.7M - $11.6M
|
1.95K
$1.78M
|
|
|
Nov 14, 2025
Q3 2025
|
Walleye Capital LLC
Plymouth, MN |
SELL
|
PUT |
-11.6K- 51.1% |
$10.6M - $11.5M
|
11.1K
$10.1M
|
|
|
Nov 14, 2025
Q3 2025
|
Tcw Group Inc
|
SELL
|
- |
-11.3K- 5.88% |
$10.4M - $11.3M
|
181K
$165M
|
|
|
Nov 06, 2025
Q3 2025
|
Rhumbline Advisers
Boston, MA |
SELL
|
- |
-11.1K- 1.29% |
$10.2M - $11.1M
|
852K
$778M
|
|
|
Nov 07, 2025
Q3 2025
|
Bnp Paribas Asset Management Holding S.A.
|
SELL
|
- |
-11.1K- 3.68% |
$10.2M - $11.1M
|
291K
$266M
|
|
|
Oct 24, 2025
Q3 2025
|
Meeder Asset Management Inc
|
SELL
|
- |
-11K- 23.05% |
$10M - $10.9M
|
36.6K
$33.4M
|
|
|
Nov 14, 2025
Q3 2025
|
Fred Alger Management, LLC
New York, NY |
SELL
|
- |
-10.7K- 86.57% |
$9.81M - $10.7M
|
1.66K
$1.52M
|
|
|
Nov 04, 2025
Q3 2025
|
Allianz Asset Management Gmb H
Munich, 2M |
SELL
|
PUT |
-10.4K- 27.81% |
$9.53M - $10.3M
|
27K
$24.6M
|
|
|
Nov 04, 2025
Q3 2025
|
Peterson Wealth Services
|
SELL
|
- |
-10.2K- 74.98% |
$9.35M - $10.2M
|
3.41K
$3.11M
|
|
|
Nov 14, 2025
Q3 2025
|
Public Employees Retirement System Of Ohio
Columbus, OH |
SELL
|
- |
-10K- 4.48% |
$9.16M - $9.95M
|
213K
$195M
|
|
|
Oct 20, 2025
Q3 2025
|
Calamos Advisors LLC
|
SELL
|
- |
-9.7K- 9.21% |
$8.89M - $9.65M
|
95.6K
$87.3M
|
|
|
Nov 14, 2025
Q3 2025
|
Capstone Investment Advisors, LLC
New York, NY |
SELL
|
- |
-9.46K- 50.31% |
$8.66M - $9.4M
|
9.34K
$8.52M
|
|
|
Nov 03, 2025
Q3 2025
|
Great Lakes Advisors, LLC
Chicago, IL |
SELL
|
- |
-9.45K- 37.37% |
$8.65M - $9.4M
|
15.8K
$14.4M
|
|
|
Nov 07, 2025
Q3 2025
|
Comgest Global Investors S.A.S.
|
SELL
|
- |
-9.23K- 6.75% |
$8.46M - $9.18M
|
127K
$116M
|
|
|
Nov 14, 2025
Q3 2025
|
M&T Bank Corp
|
SELL
|
- |
-9.2K- 4.51% |
$8.43M - $9.15M
|
195K
$178M
|
|
|
Nov 14, 2025
Q3 2025
|
Aristotle Atlantic Partners, LLC
New York, NY |
SELL
|
- |
-9.05K- 11.23% |
$8.28M - $9M
|
71.5K
$65.2M
|
|
|
Nov 14, 2025
Q3 2025
|
Man Group PLC
London, X0 |
SELL
|
PUT |
-8.9K- 41.59% |
$8.15M - $8.85M
|
12.5K
$11.4M
|
|
|
Nov 13, 2025
Q3 2025
|
Baird Financial Group, Inc.
Milwaukee, WI |
SELL
|
- |
-8.87K- 1.47% |
$8.12M - $8.82M
|
593K
$541M
|
|
|
Oct 28, 2025
Q3 2025
|
Qrg Capital Management, Inc.
Berwyn, PA |
SELL
|
- |
-8.61K- 10.69% |
$7.89M - $8.57M
|
71.9K
$65.6M
|
|
|
Nov 14, 2025
Q3 2025
|
State Of Wisconsin Investment Board
Madison, WI |
SELL
|
- |
-8.53K- 3.48% |
$7.81M - $8.48M
|
237K
$216M
|
|
|
Nov 21, 2025
Q3 2025
|
Achmea Investment Management B.V.
|
SELL
|
- |
-8.44K- 10.5% |
$7.73M - $8.39M
|
72K
$65.7M
|
|
|
Nov 10, 2025
Q3 2025
|
Bowen Hanes & CO Inc
Atlanta, GA |
SELL
|
- |
-8.2K- 6.48% |
$7.51M - $8.15M
|
118K
$108M
|
|
|
Nov 07, 2025
Q3 2025
|
Empirical Financial Services, LLC D.B.A. Empirical Wealth Management
|
SELL
|
- |
-8.12K- 25.93% |
$7.44M - $8.08M
|
23.2K
$21.2M
|
|
|
Oct 30, 2025
Q3 2025
|
Simplicity Wealth,Llc
|
SELL
|
- |
-8.1K- 46.34% |
$7.42M - $8.06M
|
9.38K
$8.56M
|
|
|
Oct 15, 2025
Q3 2025
|
Pacer Advisors, Inc.
Malvern, PA |
SELL
|
- |
-7.94K- 10.63% |
$7.27M - $7.89M
|
66.7K
$60.9M
|
|
|
Nov 13, 2025
Q3 2025
|
Worldly Partners Management, LLC
Boston, MA |
SELL
|
- |
-7.88K- 8.61% |
$7.22M - $7.84M
|
83.6K
$76.3M
|
|
|
Nov 13, 2025
Q3 2025
|
Treasurer Of The State Of North Carolina
|
SELL
|
- |
-7.78K- 3.75% |
$7.12M - $7.73M
|
200K
$182M
|
|
|
Nov 14, 2025
Q3 2025
|
Brevan Howard Capital Management LP
St. Helier, Y9 |
SELL
|
- |
-7.68K- 79.46% |
$7.04M - $7.64M
|
1.99K
$1.81M
|
|
|
Nov 10, 2025
Q3 2025
|
Private Advisory Group LLC
Redmond, WA |
SELL
|
- |
-7.54K- 25.82% |
$6.9M - $7.5M
|
21.6K
$19.8M
|
|
|
Nov 13, 2025
Q3 2025
|
Rathbones Group PLC
Liverpool, X0 |
SELL
|
- |
-7.34K- 2.66% |
$6.72M - $7.3M
|
269K
$245M
|
|
|
Nov 13, 2025
Q3 2025
|
Comerica Bank
|
SELL
|
- |
-7.09K- 5.61% |
$6.5M - $7.05M
|
119K
$109M
|
|
|
Nov 05, 2025
Q3 2025
|
B.O.S.S. Retirement Advisors, LLC
Lehi, UT |
SELL
|
- |
-7.08K- 56.41% |
$6.49M - $7.04M
|
5.47K
$5M
|
|
|
Nov 13, 2025
Q3 2025
|
Korea Investment Corp
Seoul, M5 |
SELL
|
- |
-6.91K- 1.92% |
$6.33M - $6.87M
|
354K
$323M
|
|
|
Nov 10, 2025
Q3 2025
|
Us Bancorp \De\
|
SELL
|
- |
-6.85K- 1.31% |
$6.28M - $6.82M
|
515K
$470M
|
|
|
Nov 14, 2025
Q3 2025
|
Cubist Systematic Strategies, LLC
Stamford, CT |
SELL
|
PUT |
-6.7K- 20.24% |
$6.14M - $6.66M
|
26.4K
$24.1M
|
|
|
Oct 31, 2025
Q3 2025
|
Sawgrass Asset Management LLC
|
SELL
|
- |
-6.64K- 92.04% |
$6.08M - $6.6M
|
574
$524K
|
|
|
Nov 13, 2025
Q3 2025
|
Brown Brothers Harriman & CO
New York, NY |
SELL
|
- |
-6.63K- 2.74% |
$6.07M - $6.6M
|
235K
$215M
|
|
|
Oct 16, 2025
Q3 2025
|
Highland Capital Management, LLC
|
SELL
|
- |
-6.58K- 16.4% |
$6.03M - $6.55M
|
33.6K
$30.6M
|
|
|
Oct 24, 2025
Q3 2025
|
First Horizon Corp
Memphis, TN |
SELL
|
- |
-6.52K- 27.73% |
$5.97M - $6.48M
|
17K
$15.5M
|
|
|
Nov 14, 2025
Q3 2025
|
Ken Griffin
Citadel Advisors LLC | Chicago, Il
|
SELL
|
PUT |
-6.2K- 0.49% |
$5.68M - $6.17M
|
1.25M
$1.14B
|
|
|
Nov 13, 2025
Q3 2025
|
Employees Retirement System Of Texas
|
SELL
|
- |
-6.2K- 5.93% |
$5.68M - $6.17M
|
98.3K
$89.8M
|
|
|
Nov 14, 2025
Q3 2025
|
Spears Abacus Advisors LLC
|
SELL
|
- |
-6.09K- 10.43% |
$5.58M - $6.06M
|
52.3K
$47.7M
|
|
|
Nov 13, 2025
Q3 2025
|
Martingale Asset Management L P
Boston, MA |
SELL
|
- |
-6.05K- 13.37% |
$5.54M - $6.02M
|
39.2K
$35.8M
|
|
|
Nov 13, 2025
Q3 2025
|
British Columbia Investment Management Corp
Victoria, A1 |
SELL
|
- |
-6.05K- 8.65% |
$5.54M - $6.02M
|
63.9K
$58.3M
|
|
|
Oct 23, 2025
Q3 2025
|
Duncker Streett & CO Inc
|
SELL
|
- |
-6.03K- 48.25% |
$5.53M - $6M
|
6.47K
$5.91M
|
|
|
Oct 21, 2025
Q3 2025
|
Gateway Investment Advisers LLC
|
SELL
|
- |
-5.83K- 6.1% |
$5.34M - $5.79M
|
89.6K
$81.8M
|
|