William Blair Investment Management, LLC Costco Wholesale Corp Transaction History

William Blair Investment Management, LLC

  • $32.7 Billion
  • Q1 2025

A detailed history of William Blair Investment Management, LLC transactions in Costco Wholesale Corp stock. As of the latest transaction made, William Blair Investment Management, LLC holds 353,579 shares of COST stock, worth $360 Million. This represents 1.02% of its overall portfolio holdings.

Number of Shares
353,579
Previous 337,185 4.86%
Holding current value
$360 Million
Previous $309 Million 8.24%
% of portfolio
1.02%
Previous 0.81%

Shares

31 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q1 2025

May 09, 2025
BUY
$890.62 - $1076.86 $14.6 Million - $17.7 Million
16,394 Added 4.86%
353,579 $334 Million
Q4 2024

Feb 10, 2025
SELL
$873.59 - $994.69 $4.09 Million - $4.66 Million
-4,680 Reduced 1.37%
337,185 $309 Million
Q3 2024

Nov 08, 2024
SELL
$801.83 - $917.05 $19.4 Million - $22.2 Million
-24,201 Reduced 6.61%
341,865 $303 Million
Q2 2024

Aug 08, 2024
BUY
$704.88 - $870.75 $6.81 Million - $8.41 Million
9,662 Added 2.71%
366,066 $311 Million
Q1 2024

May 08, 2024
SELL
$644.69 - $785.59 $24.3 Million - $29.7 Million
-37,764 Reduced 9.58%
356,404 $261 Million
Q4 2023

Feb 09, 2024
SELL
$543.03 - $681.24 $23.5 Million - $29.5 Million
-43,333 Reduced 9.9%
394,168 $260 Million
Q3 2023

Nov 09, 2023
BUY
$525.05 - $568.63 $32.9 Million - $35.7 Million
62,752 Added 16.75%
437,501 $247 Million
Q2 2023

Aug 10, 2023
BUY
$482.76 - $538.38 $6.39 Million - $7.13 Million
13,246 Added 3.66%
374,749 $202 Million
Q1 2023

May 12, 2023
SELL
$450.19 - $523.43 $55.7 Million - $64.7 Million
-123,661 Reduced 25.49%
361,503 $180 Million
Q4 2022

Feb 09, 2023
BUY
$452.99 - $539.25 $10.4 Million - $12.4 Million
22,970 Added 4.97%
485,164 $221 Million
Q3 2022

Nov 09, 2022
BUY
$466.4 - $560.96 $13.6 Million - $16.4 Million
29,250 Added 6.76%
462,194 $218 Million
Q2 2022

Aug 10, 2022
BUY
$416.43 - $608.05 $39.3 Million - $57.4 Million
94,454 Added 27.9%
432,944 $208 Million
Q1 2022

May 11, 2022
BUY
$477.32 - $576.47 $14.1 Million - $17.1 Million
29,582 Added 9.58%
338,490 $195 Million
Q4 2021

Feb 14, 2022
BUY
$440.14 - $567.77 $41.6 Million - $53.7 Million
94,552 Added 44.11%
308,908 $175 Million
Q3 2021

Nov 10, 2021
SELL
$394.53 - $467.75 $1.63 Million - $1.93 Million
-4,132 Reduced 1.89%
214,356 $96.3 Million
Q2 2021

Aug 12, 2021
BUY
$354.94 - $398.79 $1.04 Million - $1.17 Million
2,938 Added 1.36%
218,488 $86.4 Million
Q1 2021

May 13, 2021
BUY
$311.42 - $380.15 $11.2 Million - $13.7 Million
35,925 Added 20.0%
215,550 $76 Million
Q4 2020

Feb 09, 2021
SELL
$355.01 - $391.77 $17.5 Million - $19.3 Million
-49,385 Reduced 21.56%
179,625 $67.7 Million
Q3 2020

Nov 06, 2020
BUY
$304.75 - $358.86 $28.6 Million - $33.7 Million
93,807 Added 69.38%
229,010 $81.3 Million
Q2 2020

Aug 12, 2020
BUY
$286.78 - $321.56 $3.04 Million - $3.4 Million
10,588 Added 8.5%
135,203 $41 Million
Q1 2020

May 08, 2020
SELL
$279.85 - $324.08 $429,849 - $497,786
-1,536 Reduced 1.22%
124,615 $35.5 Million
Q4 2019

Feb 12, 2020
SELL
$283.93 - $305.21 $2.56 Million - $2.76 Million
-9,031 Reduced 6.68%
126,151 $37.1 Million
Q3 2019

Nov 12, 2019
SELL
$263.55 - $303.76 $3.96 Million - $4.56 Million
-15,010 Reduced 9.99%
135,182 $38.9 Million
Q2 2019

Aug 09, 2019
BUY
$239.58 - $267.35 $5.39 Million - $6.02 Million
22,517 Added 17.64%
150,192 $39.7 Million
Q1 2019

May 10, 2019
BUY
$200.42 - $242.14 $12.5 Million - $15.1 Million
62,504 Added 95.91%
127,675 $30.9 Million
Q4 2018

Feb 13, 2019
BUY
$189.99 - $240.37 $383,019 - $484,585
2,016 Added 3.19%
65,171 $13.3 Million
Q3 2018

Nov 13, 2018
SELL
$207.12 - $244.21 $3.55 Million - $4.18 Million
-17,124 Reduced 21.33%
63,155 $14.8 Million
Q2 2018

Aug 14, 2018
SELL
$182.61 - $211.75 $677,848 - $786,016
-3,712 Reduced 4.42%
80,279 $16.8 Million
Q1 2018

May 14, 2018
SELL
$178.61 - $198.91 $1.99 Million - $2.21 Million
-11,118 Reduced 11.69%
83,991 $15.8 Million
Q4 2017

Feb 14, 2018
SELL
$154.61 - $192.73 $50.5 Million - $62.9 Million
-326,485 Reduced 77.44%
95,109 $17.7 Million
Q3 2017

Nov 13, 2017
BUY
$151.33 - $164.42 $63.8 Million - $69.3 Million
421,594
421,594 $69.3 Million

Others Institutions Holding COST

# of Institutions
4,395
Shares Held
301M
Call Options Held
6.92M
Put Options Held
9.64M
View Full List

About COSTCO WHOLESALE CORP

COST Quotes by TradingView
  • Ticker COST
  • Exchange NASDAQ
  • Sector Consumer Defensive
  • Industry Discount Stores
  • Shares Outstandng 442,604,000
  • Market Cap $450B
  • Description
  • Costco Wholesale Corporation, together with its subsidiaries, engages in the operation of membership warehouses in the United States, Puerto Rico, Canada, the United Kingdom, Mexico, Japan, Korea, Australia, Spain, France, Iceland, China, and Taiwan. It offers branded and private-label products in a range of merchandise categories. The company o...
More about COST
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