Ken Griffin Costco Wholesale Corp Transaction History

Citadel Advisors LLC

$618 Billion
Q3 2025

A detailed history of Ken Griffin (Citadel Advisors LLC) transactions in Costco Wholesale Corp stock. As of the latest transaction made, Citadel Advisors LLC holds 1,874,500 shares of COST stock, worth $1.71 Billion. This represents 0.28% of its overall portfolio holdings.

Number of Shares

1,874,500

Previous 53,892 3378.25%

Holding current value

$1.71 Billion

Previous $53.3 Million 3152.34%

% of portfolio

0.28%

Previous 0.01%

32 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 14, 2025	BUY	$915.95 - $994.57 $387 Million - $420 Million	422,238 Added 783.49%	476,130 $441 Million
Q2 2025 Aug 14, 2025	SELL	$908.13 - $1056.85 $429 Million - $499 Million	-472,383 Reduced 89.76%	53,892 $53.3 Million
Q1 2025 May 15, 2025	BUY	$890.62 - $1076.86 $228 Million - $276 Million	256,275 Added 94.92%	526,275 $498 Million
Q4 2024 Feb 14, 2025	BUY	$873.59 - $994.69 $208 Million - $237 Million	237,780 Added 737.99%	270,000 $247 Million
Q3 2024 Nov 14, 2024	BUY	$801.83 - $917.05 $25.8 Million - $29.5 Million	32,220 New	32,220 $28.6 Million

Q1 2024 May 15, 2024	SELL	$644.69 - $785.59 $122 Million - $149 Million	-189,410 Reduced 60.4%	124,182 $91 Million
Q4 2023 Feb 14, 2024	BUY	$543.03 - $681.24 $124 Million - $155 Million	227,592 Added 264.64%	313,592 $207 Million
Q3 2023 Nov 14, 2023	SELL	$525.05 - $568.63 $73.1 Million - $79.2 Million	-139,225 Reduced 61.82%	86,000 $48.6 Million
Q2 2023 Aug 14, 2023	BUY	$482.76 - $538.38 $67.1 Million - $74.9 Million	139,065 Added 161.4%	225,225 $121 Million
Q1 2023 May 15, 2023	SELL	$450.19 - $523.43 $167 Million - $194 Million	-370,715 Reduced 81.14%	86,160 $42.8 Million
Q4 2022 Feb 14, 2023	BUY	$452.99 - $539.25 $76.3 Million - $90.8 Million	168,360 Added 58.35%	456,875 $209 Million
Q3 2022 Nov 14, 2022	BUY	$466.4 - $560.96 $25.7 Million - $30.9 Million	55,024 Added 23.57%	288,515 $136 Million
Q2 2022 Aug 15, 2022	SELL	$416.43 - $608.05 $110 Million - $160 Million	-263,355 Reduced 53.01%	233,491 $112 Million
Q1 2022 May 16, 2022	BUY	$477.32 - $576.47 $205 Million - $247 Million	429,284 Added 635.39%	496,846 $286 Million
Q4 2021 Feb 14, 2022	BUY	$440.14 - $567.77 $5.1 Million - $6.58 Million	11,583 Added 20.69%	67,562 $38.4 Million
Q3 2021 Nov 15, 2021	SELL	$394.53 - $467.75 $8.12 Million - $9.62 Million	-20,571 Reduced 26.87%	55,979 $25.2 Million
Q2 2021 Aug 16, 2021	SELL	$354.94 - $398.79 $207 Million - $232 Million	-581,878 Reduced 88.37%	76,550 $30.3 Million
Q1 2021 May 17, 2021	BUY	$311.42 - $380.15 $67.5 Million - $82.4 Million	216,656 Added 49.04%	658,428 $232 Million
Q4 2020 Feb 16, 2021	BUY	$355.01 - $391.77 $30.6 Million - $33.8 Million	86,208 Added 24.25%	441,772 $166 Million
Q3 2020 Nov 16, 2020	BUY	$304.75 - $358.86 $35.1 Million - $41.4 Million	115,250 Added 47.96%	355,564 $126 Million
Q2 2020 Aug 14, 2020	SELL	$286.78 - $321.56 $80.5 Million - $90.2 Million	-280,594 Reduced 53.87%	240,314 $72.9 Million
Q1 2020 May 15, 2020	BUY	$279.85 - $324.08 $43.3 Million - $50.2 Million	154,793 Added 42.28%	520,908 $149 Million
Q4 2019 Feb 14, 2020	SELL	$283.93 - $305.21 $69.6 Million - $74.8 Million	-245,079 Reduced 40.1%	366,115 $108 Million
Q3 2019 Nov 14, 2019	BUY	$263.55 - $303.76 $37.5 Million - $43.3 Million	142,409 Added 30.38%	611,194 $176 Million
Q2 2019 Aug 14, 2019	SELL	$239.58 - $267.35 $85 Million - $94.8 Million	-354,730 Reduced 43.08%	468,785 $124 Million
Q1 2019 May 15, 2019	BUY	$200.42 - $242.14 $97 Million - $117 Million	484,164 Added 142.67%	823,515 $0
Q4 2018 Feb 14, 2019	BUY	$189.99 - $240.37 $14 Million - $17.7 Million	73,575 Added 27.68%	339,351 $69.1 Million
Q3 2018 Nov 13, 2018	SELL	$207.12 - $244.21 $20 Million - $23.6 Million	-96,530 Reduced 26.64%	265,776 $0
Q2 2018 Aug 10, 2018	BUY	$182.61 - $211.75 $41.9 Million - $48.5 Million	229,233 Added 172.26%	362,306 $0
Q1 2018 May 11, 2018	SELL	$178.61 - $198.91 $6.82 Million - $7.6 Million	-38,197 Reduced 22.3%	133,073 $25.1 Million
Q4 2017 Feb 09, 2018	SELL	$154.61 - $192.73 $13.7 Million - $17.1 Million	-88,540 Reduced 34.08%	171,270 $31.9 Million
Q3 2017 Nov 09, 2017	BUY	$151.33 - $164.42 $39.3 Million - $42.7 Million	259,810	259,810 $42.7 Million

Others Institutions Holding COST

# of Institutions

4,529

Shares Held

295M

Call Options Held

8.14M

Put Options Held

9.76M

View Full List

About COSTCO WHOLESALE CORP

Ticker COST
Exchange NASDAQ
Sector Consumer Defensive
Industry Discount Stores
Shares Outstandng 442,604,000
Market Cap $404B
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...

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