COSTCO WHSL CORP NEW

Ticker: COST CUSIP: 22160K105 Class: COM

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q4 2025

Shares 512,030 Value ($000) $441,544 Avg Close $905.73 Range $844.06 - $962.64

Q3 2025

Shares 91,045 Value ($000) $84,274 Avg Close $956.70 Range $902.01 - $997.89

Q2 2025

Shares 323,491 Value ($000) $320,237 Avg Close $990.72 Range $868.14 - $1064.10

Q1 2025

Shares 546,047 Value ($000) $516,440 Avg Close $970.56 Range $877.95 - $1073.82

Q4 2024

Shares 103,077 Value ($000) $94,446 Avg Close $922.64 Range $861.51 - $1003.02

Q3 2024

Shares 1,978 Value ($000) $1,754 Avg Close $861.91 Range $787.84 - $917.81

Q2 2024

Shares 572,362 Value ($000) $486,502 Avg Close $773.82 Range $690.64 - $867.04

Q1 2024

Shares 657,209 Value ($000) $481,491 Avg Close $706.75 Range $633.49 - $779.59

Q4 2023

Shares 455,239 Value ($000) $300,494 Avg Close $573.49 Range $521.47 - $661.25

Q3 2023

Shares 585,807 Value ($000) $330,958 Avg Close $532.21 Range $505.45 - $552.31

Q2 2023

Shares 73,020 Value ($000) $39,313 Avg Close $487.14 Range $459.09 - $519.84

Q1 2023

Shares 948 Value ($000) $471 Avg Close $471.27 Range $429.88 - $509.61

Q4 2022

Shares 136,971 Value ($000) $62,527 Avg Close $468.77 Range $430.19 - $520.75

Q3 2022

Shares 364,345 Value ($000) $172,070 Avg Close $498.08 Range $444.08 - $541.06

Q2 2022

Shares 138,106 Value ($000) $66,192 Avg Close $484.91 Range $388.78 - $584.62

Q1 2022

Shares 401,741 Value ($000) $231,343 Avg Close $500.83 Range $447.15 - $559.84

Q4 2021

Shares 16,600 Value ($000) $9,421 Avg Close $488.10 Range $415.17 - $544.86

Q3 2021

Shares 22,406 Value ($000) $10,068 Avg Close $418.22 Range $374.22 - $447.84

Q2 2021

Shares 17,217 Value ($000) $6,812 Avg Close $359.04 Range $333.36 - $380.48

Q1 2021

Shares 54,402 Value ($000) $19,177 Avg Close $329.77 Range $291.05 - $361.01

Q4 2020

Shares 67,320 Value ($000) $25,365 Avg Close $347.39 Range $324.71 - $367.18

Q3 2020

Shares 124,013 Value ($000) $44,025 Avg Close $309.06 Range $276.17 - $334.67

Q2 2020

Shares 15,636 Value ($000) $4,741 Avg Close $279.18 Range $257.36 - $295.59

Q1 2020

Shares 82,084 Value ($000) $23,405 Avg Close $277.78 Range $248.54 - $298.00

Q4 2019

Shares 269,184 Value ($000) $79,119 Avg Close $271.52 Range $256.90 - $280.77

Q3 2019

Shares 204,390 Value ($000) $58,886 Avg Close $256.34 Range $238.19 - $280.38

Q2 2019

Shares 20,948 Value ($000) $5,536 Avg Close $226.60 Range $212.14 - $244.81

Q1 2019

Shares 17,927 Value ($000) $4,341 Avg Close $198.35 Range $180.94 - $220.09

Q4 2018

Shares 2,194 Value ($000) $447 Avg Close $201.98 Range $171.58 - $217.57

Q2 2018

Shares 250,388 Value ($000) $52,326 Avg Close $177.76 Range $162.55 - $191.42

Q1 2018

Shares 14,883 Value ($000) $2,804 Avg Close $169.26 Range $157.50 - $179.09

Q4 2016

Shares 220,295 Value ($000) $35,273 Avg Close $129.79 Range $120.95 - $140.39

Q3 2016

Shares 172,144 Value ($000) $26,254 Avg Close $136.95 Range $124.90 - $143.90

Q2 2016

Shares 2,426 Value ($000) $381 Avg Close $128.04 Range $117.26 - $134.37

Q1 2016

Shares 5,506 Value ($000) $868 Avg Close $127.74 Range $119.17 - $135.67

Q4 2015

Shares 12,291 Value ($000) $1,985 Avg Close $132.84 Range $119.34 - $142.82

Q2 2014

Shares 45,836 Value ($000) $5,278 Avg Close $91.81 Range $88.18 - $95.25

Q1 2014

Shares 56,434 Value ($000) $6,303 Avg Close $91.29 Range $87.26 - $95.07

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	512,030	$441,544	$905.73	$844.06 - $962.64
Q3 2025	91,045	$84,274	$956.70	$902.01 - $997.89
Q2 2025	323,491	$320,237	$990.72	$868.14 - $1064.10
Q1 2025	546,047	$516,440	$970.56	$877.95 - $1073.82
Q4 2024	103,077	$94,446	$922.64	$861.51 - $1003.02
Q3 2024	1,978	$1,754	$861.91	$787.84 - $917.81
Q2 2024	572,362	$486,502	$773.82	$690.64 - $867.04
Q1 2024	657,209	$481,491	$706.75	$633.49 - $779.59
Q4 2023	455,239	$300,494	$573.49	$521.47 - $661.25
Q3 2023	585,807	$330,958	$532.21	$505.45 - $552.31
Q2 2023	73,020	$39,313	$487.14	$459.09 - $519.84
Q1 2023	948	$471	$471.27	$429.88 - $509.61
Q4 2022	136,971	$62,527	$468.77	$430.19 - $520.75
Q3 2022	364,345	$172,070	$498.08	$444.08 - $541.06
Q2 2022	138,106	$66,192	$484.91	$388.78 - $584.62
Q1 2022	401,741	$231,343	$500.83	$447.15 - $559.84
Q4 2021	16,600	$9,421	$488.10	$415.17 - $544.86
Q3 2021	22,406	$10,068	$418.22	$374.22 - $447.84
Q2 2021	17,217	$6,812	$359.04	$333.36 - $380.48
Q1 2021	54,402	$19,177	$329.77	$291.05 - $361.01
Q4 2020	67,320	$25,365	$347.39	$324.71 - $367.18
Q3 2020	124,013	$44,025	$309.06	$276.17 - $334.67
Q2 2020	15,636	$4,741	$279.18	$257.36 - $295.59
Q1 2020	82,084	$23,405	$277.78	$248.54 - $298.00
Q4 2019	269,184	$79,119	$271.52	$256.90 - $280.77
Q3 2019	204,390	$58,886	$256.34	$238.19 - $280.38
Q2 2019	20,948	$5,536	$226.60	$212.14 - $244.81
Q1 2019	17,927	$4,341	$198.35	$180.94 - $220.09
Q4 2018	2,194	$447	$201.98	$171.58 - $217.57
Q2 2018	250,388	$52,326	$177.76	$162.55 - $191.42
Q1 2018	14,883	$2,804	$169.26	$157.50 - $179.09
Q4 2016	220,295	$35,273	$129.79	$120.95 - $140.39
Q3 2016	172,144	$26,254	$136.95	$124.90 - $143.90
Q2 2016	2,426	$381	$128.04	$117.26 - $134.37
Q1 2016	5,506	$868	$127.74	$119.17 - $135.67
Q4 2015	12,291	$1,985	$132.84	$119.34 - $142.82
Q2 2014	45,836	$5,278	$91.81	$88.18 - $95.25
Q1 2014	56,434	$6,303	$91.29	$87.26 - $95.07