COSTCO WHSL CORP NEW

Ticker: COST CUSIP: 22160K105 Class: COM

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 989,626 Value ($000) $853,394 Avg Close $905.73 Range $844.06 - $962.64

Q3 2025

Shares 412,089 Value ($000) $381,442 Avg Close $956.70 Range $902.01 - $997.89

Q2 2025

Shares 245,590 Value ($000) $243,119 Avg Close $990.72 Range $868.14 - $1064.10

Q1 2025

Shares 6,415 Value ($000) $6,067 Avg Close $970.56 Range $877.95 - $1073.82

Q4 2024

Shares 130,403 Value ($000) $119,484 Avg Close $922.64 Range $861.51 - $1003.02

Q3 2024

Shares 101,360 Value ($000) $89,858 Avg Close $861.91 Range $787.84 - $917.81

Q2 2024

Shares 12,652 Value ($000) $11 Avg Close $773.82 Range $690.64 - $867.04

Q1 2024

Shares 568 Value ($000) $0 Avg Close $706.75 Range $633.49 - $779.59

Q4 2022

Shares 7,901 Value ($000) $4 Avg Close $468.77 Range $430.19 - $520.75

Q3 2022

Shares 117,957 Value ($000) $55,708 Avg Close $498.08 Range $444.08 - $541.06

Q2 2022

Shares 485,519 Value ($000) $232,700 Avg Close $484.91 Range $388.78 - $584.62

Q1 2022

Shares 92,590 Value ($000) $53,318 Avg Close $500.83 Range $447.15 - $559.84

Q4 2021

Shares 1,052,406 Value ($000) $597,451 Avg Close $488.10 Range $415.17 - $544.86

Q3 2021

Shares 1,070,337 Value ($000) $480,956 Avg Close $418.22 Range $374.22 - $447.84

Q2 2021

Shares 977,136 Value ($000) $386,623 Avg Close $359.04 Range $333.36 - $380.48

Q1 2021

Shares 1,077,210 Value ($000) $379,695 Avg Close $329.77 Range $291.05 - $361.01

Q4 2020

Shares 431,742 Value ($000) $162,672 Avg Close $347.39 Range $324.71 - $367.18

Q3 2020

Shares 557,211 Value ($000) $197,810 Avg Close $309.06 Range $276.17 - $334.67

Q2 2020

Shares 423,249 Value ($000) $128,333 Avg Close $279.18 Range $257.36 - $295.59

Q1 2020

Shares 116,600 Value ($000) $33,246 Avg Close $277.78 Range $248.54 - $298.00

Q3 2019

Shares 60,275 Value ($000) $17,366 Avg Close $256.34 Range $238.19 - $280.38

Q4 2018

Shares 1,119,023 Value ($000) $227,956 Avg Close $201.98 Range $171.58 - $217.57

Q3 2018

Shares 1,188,874 Value ($000) $279,243 Avg Close $203.13 Range $185.65 - $221.43

Q2 2018

Shares 5,200 Value ($000) $1,087 Avg Close $177.76 Range $162.55 - $191.42

Q4 2017

Shares 14,900 Value ($000) $2,773 Avg Close $154.45 Range $137.67 - $175.03

Q2 2017

Shares 20,000 Value ($000) $3,199 Avg Close $150.98 Range $139.41 - $162.71

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	989,626	$853,394	$905.73	$844.06 - $962.64
Q3 2025	412,089	$381,442	$956.70	$902.01 - $997.89
Q2 2025	245,590	$243,119	$990.72	$868.14 - $1064.10
Q1 2025	6,415	$6,067	$970.56	$877.95 - $1073.82
Q4 2024	130,403	$119,484	$922.64	$861.51 - $1003.02
Q3 2024	101,360	$89,858	$861.91	$787.84 - $917.81
Q2 2024	12,652	$11	$773.82	$690.64 - $867.04
Q1 2024	568	$0	$706.75	$633.49 - $779.59
Q4 2022	7,901	$4	$468.77	$430.19 - $520.75
Q3 2022	117,957	$55,708	$498.08	$444.08 - $541.06
Q2 2022	485,519	$232,700	$484.91	$388.78 - $584.62
Q1 2022	92,590	$53,318	$500.83	$447.15 - $559.84
Q4 2021	1,052,406	$597,451	$488.10	$415.17 - $544.86
Q3 2021	1,070,337	$480,956	$418.22	$374.22 - $447.84
Q2 2021	977,136	$386,623	$359.04	$333.36 - $380.48
Q1 2021	1,077,210	$379,695	$329.77	$291.05 - $361.01
Q4 2020	431,742	$162,672	$347.39	$324.71 - $367.18
Q3 2020	557,211	$197,810	$309.06	$276.17 - $334.67
Q2 2020	423,249	$128,333	$279.18	$257.36 - $295.59
Q1 2020	116,600	$33,246	$277.78	$248.54 - $298.00
Q3 2019	60,275	$17,366	$256.34	$238.19 - $280.38
Q4 2018	1,119,023	$227,956	$201.98	$171.58 - $217.57
Q3 2018	1,188,874	$279,243	$203.13	$185.65 - $221.43
Q2 2018	5,200	$1,087	$177.76	$162.55 - $191.42
Q4 2017	14,900	$2,773	$154.45	$137.67 - $175.03
Q2 2017	20,000	$3,199	$150.98	$139.41 - $162.71