COSTCO WHSL CORP NEW

Ticker: COST CUSIP: 22160K105 Class: COM

Public Sector Pension Investment Board's Holding History (CIK: 0001396318)

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

Q4 2025

Shares 77,481 Value ($000) $66,815 Avg Close $905.73 Range $844.06 - $962.64

Q3 2025

Shares 71,333 Value ($000) $66,028 Avg Close $956.70 Range $902.01 - $997.89

Q2 2025

Shares 33,611 Value ($000) $33,273 Avg Close $990.72 Range $868.14 - $1064.10

Q1 2025

Shares 119,464 Value ($000) $112,987 Avg Close $970.56 Range $877.95 - $1073.82

Q4 2024

Shares 100,278 Value ($000) $91,882 Avg Close $922.64 Range $861.51 - $1003.02

Q3 2024

Shares 52,313 Value ($000) $46,377 Avg Close $861.91 Range $787.84 - $917.81

Q2 2024

Shares 47,013 Value ($000) $39,961 Avg Close $773.82 Range $690.64 - $867.04

Q1 2024

Shares 39,882 Value ($000) $29,219 Avg Close $706.75 Range $633.49 - $779.59

Q4 2023

Shares 40,016 Value ($000) $26,414 Avg Close $573.49 Range $521.47 - $661.25

Q3 2023

Shares 77,469 Value ($000) $43,767 Avg Close $532.21 Range $505.45 - $552.31

Q2 2023

Shares 42,467 Value ($000) $22,863 Avg Close $487.14 Range $459.09 - $519.84

Q1 2023

Shares 48,820 Value ($000) $24,257 Avg Close $471.27 Range $429.88 - $509.61

Q4 2022

Shares 55,103 Value ($000) $25,155 Avg Close $468.77 Range $430.19 - $520.75

Q3 2022

Shares 47,483 Value ($000) $22 Avg Close $498.08 Range $444.08 - $541.06

Q2 2022

Shares 42,633 Value ($000) $20,433 Avg Close $484.91 Range $388.78 - $584.62

Q1 2022

Shares 62,220 Value ($000) $35,829 Avg Close $500.83 Range $447.15 - $559.84

Q4 2021

Shares 107,720 Value ($000) $61,153 Avg Close $488.10 Range $415.17 - $544.86

Q3 2021

Shares 108,560 Value ($000) $48,781 Avg Close $418.22 Range $374.22 - $447.84

Q2 2021

Shares 103,300 Value ($000) $40,873 Avg Close $359.04 Range $333.36 - $380.48

Q1 2021

Shares 100,860 Value ($000) $35,551 Avg Close $329.77 Range $291.05 - $361.01

Q4 2020

Shares 34,650 Value ($000) $13,055 Avg Close $347.39 Range $324.71 - $367.18

Q3 2020

Shares 53,450 Value ($000) $18,975 Avg Close $309.06 Range $276.17 - $334.67

Q2 2020

Shares 42,550 Value ($000) $12,902 Avg Close $279.18 Range $257.36 - $295.59

Q1 2020

Shares 44,150 Value ($000) $12,588 Avg Close $277.78 Range $248.54 - $298.00

Q4 2019

Shares 158,660 Value ($000) $46,633 Avg Close $271.52 Range $256.90 - $280.77

Q3 2019

Shares 85,440 Value ($000) $24,616 Avg Close $256.34 Range $238.19 - $280.38

Q2 2019

Shares 57,451 Value ($000) $15,182 Avg Close $226.60 Range $212.14 - $244.81

Q1 2019

Shares 36,751 Value ($000) $8,899 Avg Close $198.35 Range $180.94 - $220.09

Q4 2018

Shares 22,651 Value ($000) $4,614 Avg Close $201.98 Range $171.58 - $217.57

Q3 2018

Shares 20,551 Value ($000) $4,827 Avg Close $203.13 Range $185.65 - $221.43

Q2 2018

Shares 24,651 Value ($000) $5,152 Avg Close $177.76 Range $162.55 - $191.42

Q1 2018

Shares 24,351 Value ($000) $4,588 Avg Close $169.26 Range $157.50 - $179.09

Q4 2017

Shares 23,551 Value ($000) $4,383 Avg Close $154.45 Range $137.67 - $175.03

Q3 2017

Shares 48,851 Value ($000) $8,026 Avg Close $140.12 Range $133.57 - $147.68

Q2 2017

Shares 50,013 Value ($000) $7,999 Avg Close $150.98 Range $139.41 - $162.71

Q1 2017

Shares 100,013 Value ($000) $16,771 Avg Close $142.87 Range $134.91 - $152.51

Q4 2016

Shares 96,613 Value ($000) $15,469 Avg Close $129.79 Range $120.95 - $140.39

Q3 2016

Shares 169,213 Value ($000) $25,807 Avg Close $136.95 Range $124.90 - $143.90

Q2 2016

Shares 83,113 Value ($000) $13,052 Avg Close $128.04 Range $117.26 - $134.37

Q1 2016

Shares 71,213 Value ($000) $11,222 Avg Close $127.74 Range $119.17 - $135.67

Q4 2015

Shares 111,713 Value ($000) $18,042 Avg Close $132.84 Range $119.34 - $142.82

Q3 2015

Shares 115,813 Value ($000) $16,743 Avg Close $119.60 Range $98.22 - $123.53

Q2 2015

Shares 151,213 Value ($000) $20,423 Avg Close $120.23 Range $112.77 - $127.67

Q1 2015

Shares 152,713 Value ($000) $23,135 Avg Close $120.91 Range $111.40 - $128.73

Q4 2014

Shares 148,229 Value ($000) $21,011 Avg Close $109.42 Range $98.12 - $118.34

Q3 2014

Shares 161,529 Value ($000) $20,243 Avg Close $97.13 Range $92.09 - $102.72

Q2 2014

Shares 165,029 Value ($000) $19,005 Avg Close $91.81 Range $88.18 - $95.25

Q1 2014

Shares 160,939 Value ($000) $17,974 Avg Close $91.29 Range $87.26 - $95.07

Q4 2013

Shares 162,439 Value ($000) $19,332 Avg Close $95.15 Range $87.55 - $100.50

Q3 2013

Shares 145,539 Value ($000) $16,754 Avg Close $91.64 Range $87.25 - $95.29

Q2 2013

Shares 150,239 Value ($000) $16,612 Avg Close $86.56 Range $81.59 - $91.78

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	77,481	$66,815	$905.73	$844.06 - $962.64
Q3 2025	71,333	$66,028	$956.70	$902.01 - $997.89
Q2 2025	33,611	$33,273	$990.72	$868.14 - $1064.10
Q1 2025	119,464	$112,987	$970.56	$877.95 - $1073.82
Q4 2024	100,278	$91,882	$922.64	$861.51 - $1003.02
Q3 2024	52,313	$46,377	$861.91	$787.84 - $917.81
Q2 2024	47,013	$39,961	$773.82	$690.64 - $867.04
Q1 2024	39,882	$29,219	$706.75	$633.49 - $779.59
Q4 2023	40,016	$26,414	$573.49	$521.47 - $661.25
Q3 2023	77,469	$43,767	$532.21	$505.45 - $552.31
Q2 2023	42,467	$22,863	$487.14	$459.09 - $519.84
Q1 2023	48,820	$24,257	$471.27	$429.88 - $509.61
Q4 2022	55,103	$25,155	$468.77	$430.19 - $520.75
Q3 2022	47,483	$22	$498.08	$444.08 - $541.06
Q2 2022	42,633	$20,433	$484.91	$388.78 - $584.62
Q1 2022	62,220	$35,829	$500.83	$447.15 - $559.84
Q4 2021	107,720	$61,153	$488.10	$415.17 - $544.86
Q3 2021	108,560	$48,781	$418.22	$374.22 - $447.84
Q2 2021	103,300	$40,873	$359.04	$333.36 - $380.48
Q1 2021	100,860	$35,551	$329.77	$291.05 - $361.01
Q4 2020	34,650	$13,055	$347.39	$324.71 - $367.18
Q3 2020	53,450	$18,975	$309.06	$276.17 - $334.67
Q2 2020	42,550	$12,902	$279.18	$257.36 - $295.59
Q1 2020	44,150	$12,588	$277.78	$248.54 - $298.00
Q4 2019	158,660	$46,633	$271.52	$256.90 - $280.77
Q3 2019	85,440	$24,616	$256.34	$238.19 - $280.38
Q2 2019	57,451	$15,182	$226.60	$212.14 - $244.81
Q1 2019	36,751	$8,899	$198.35	$180.94 - $220.09
Q4 2018	22,651	$4,614	$201.98	$171.58 - $217.57
Q3 2018	20,551	$4,827	$203.13	$185.65 - $221.43
Q2 2018	24,651	$5,152	$177.76	$162.55 - $191.42
Q1 2018	24,351	$4,588	$169.26	$157.50 - $179.09
Q4 2017	23,551	$4,383	$154.45	$137.67 - $175.03
Q3 2017	48,851	$8,026	$140.12	$133.57 - $147.68
Q2 2017	50,013	$7,999	$150.98	$139.41 - $162.71
Q1 2017	100,013	$16,771	$142.87	$134.91 - $152.51
Q4 2016	96,613	$15,469	$129.79	$120.95 - $140.39
Q3 2016	169,213	$25,807	$136.95	$124.90 - $143.90
Q2 2016	83,113	$13,052	$128.04	$117.26 - $134.37
Q1 2016	71,213	$11,222	$127.74	$119.17 - $135.67
Q4 2015	111,713	$18,042	$132.84	$119.34 - $142.82
Q3 2015	115,813	$16,743	$119.60	$98.22 - $123.53
Q2 2015	151,213	$20,423	$120.23	$112.77 - $127.67
Q1 2015	152,713	$23,135	$120.91	$111.40 - $128.73
Q4 2014	148,229	$21,011	$109.42	$98.12 - $118.34
Q3 2014	161,529	$20,243	$97.13	$92.09 - $102.72
Q2 2014	165,029	$19,005	$91.81	$88.18 - $95.25
Q1 2014	160,939	$17,974	$91.29	$87.26 - $95.07
Q4 2013	162,439	$19,332	$95.15	$87.55 - $100.50
Q3 2013	145,539	$16,754	$91.64	$87.25 - $95.29
Q2 2013	150,239	$16,612	$86.56	$81.59 - $91.78