COSTCO WHSL CORP NEW

Ticker: COST CUSIP: 22160K105 Class: COM

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND's Holding History (CIK: 0001535845)

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

Q4 2025

Shares 247,238 Value ($000) $213,203 Avg Close $905.73 Range $844.06 - $962.64

Q3 2025

Shares 217,029 Value ($000) $200,889 Avg Close $956.70 Range $902.01 - $997.89

Q2 2025

Shares 354,288 Value ($000) $350,724 Avg Close $990.72 Range $868.14 - $1064.10

Q1 2025

Shares 371,736 Value ($000) $351,580 Avg Close $970.56 Range $877.95 - $1073.82

Q4 2024

Shares 267,272 Value ($000) $244,893 Avg Close $922.64 Range $861.51 - $1003.02

Q3 2024

Shares 86,718 Value ($000) $76,877 Avg Close $861.91 Range $787.84 - $917.81

Q2 2024

Shares 389,883 Value ($000) $331,397 Avg Close $773.82 Range $690.64 - $867.04

Q1 2024

Shares 356,163 Value ($000) $260,936 Avg Close $706.75 Range $633.49 - $779.59

Q4 2023

Shares 352,961 Value ($000) $232,982 Avg Close $573.49 Range $521.47 - $661.25

Q3 2023

Shares 254,777 Value ($000) $143,939 Avg Close $532.21 Range $505.45 - $552.31

Q2 2023

Shares 91,067 Value ($000) $49,029 Avg Close $487.14 Range $459.09 - $519.84

Q1 2023

Shares 23,557 Value ($000) $11,705 Avg Close $471.27 Range $429.88 - $509.61

Q4 2022

Shares 119,360 Value ($000) $54,488 Avg Close $468.77 Range $430.19 - $520.75

Q3 2022

Shares 16,221 Value ($000) $7,661 Avg Close $498.08 Range $444.08 - $541.06

Q2 2022

Shares 6,996 Value ($000) $3,353 Avg Close $484.91 Range $388.78 - $584.62

Q1 2022

Shares 25,497 Value ($000) $14,682 Avg Close $500.83 Range $447.15 - $559.84

Q4 2021

Shares 176,255 Value ($000) $100,060 Avg Close $488.10 Range $415.17 - $544.86

Q3 2021

Shares 166,079 Value ($000) $74,628 Avg Close $418.22 Range $374.22 - $447.84

Q2 2021

Shares 175,960 Value ($000) $69,622 Avg Close $359.04 Range $333.36 - $380.48

Q1 2021

Shares 57,610 Value ($000) $20,306 Avg Close $329.77 Range $291.05 - $361.01

Q4 2020

Shares 416,145 Value ($000) $156,795 Avg Close $347.39 Range $324.71 - $367.18

Q3 2020

Shares 27,524 Value ($000) $9,771 Avg Close $309.06 Range $276.17 - $334.67

Q2 2020

Shares 14,566 Value ($000) $4,417 Avg Close $279.18 Range $257.36 - $295.59

Q1 2020

Shares 1,485 Value ($000) $423 Avg Close $277.78 Range $248.54 - $298.00

Q4 2019

Shares 118,222 Value ($000) $34,748 Avg Close $271.52 Range $256.90 - $280.77

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	247,238	$213,203	$905.73	$844.06 - $962.64
Q3 2025	217,029	$200,889	$956.70	$902.01 - $997.89
Q2 2025	354,288	$350,724	$990.72	$868.14 - $1064.10
Q1 2025	371,736	$351,580	$970.56	$877.95 - $1073.82
Q4 2024	267,272	$244,893	$922.64	$861.51 - $1003.02
Q3 2024	86,718	$76,877	$861.91	$787.84 - $917.81
Q2 2024	389,883	$331,397	$773.82	$690.64 - $867.04
Q1 2024	356,163	$260,936	$706.75	$633.49 - $779.59
Q4 2023	352,961	$232,982	$573.49	$521.47 - $661.25
Q3 2023	254,777	$143,939	$532.21	$505.45 - $552.31
Q2 2023	91,067	$49,029	$487.14	$459.09 - $519.84
Q1 2023	23,557	$11,705	$471.27	$429.88 - $509.61
Q4 2022	119,360	$54,488	$468.77	$430.19 - $520.75
Q3 2022	16,221	$7,661	$498.08	$444.08 - $541.06
Q2 2022	6,996	$3,353	$484.91	$388.78 - $584.62
Q1 2022	25,497	$14,682	$500.83	$447.15 - $559.84
Q4 2021	176,255	$100,060	$488.10	$415.17 - $544.86
Q3 2021	166,079	$74,628	$418.22	$374.22 - $447.84
Q2 2021	175,960	$69,622	$359.04	$333.36 - $380.48
Q1 2021	57,610	$20,306	$329.77	$291.05 - $361.01
Q4 2020	416,145	$156,795	$347.39	$324.71 - $367.18
Q3 2020	27,524	$9,771	$309.06	$276.17 - $334.67
Q2 2020	14,566	$4,417	$279.18	$257.36 - $295.59
Q1 2020	1,485	$423	$277.78	$248.54 - $298.00
Q4 2019	118,222	$34,748	$271.52	$256.90 - $280.77