COSTCO WHSL CORP NEW

Ticker: COST CUSIP: 22160K105 Class: COM

WASHINGTON TRUST Co's Holding History (CIK: 0001079736)

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

Q4 2025

Shares 27,895 Value ($000) $24,055 Avg Close $905.73 Range $844.06 - $962.64

Q3 2025

Shares 28,471 Value ($000) $26,354 Avg Close $956.70 Range $902.01 - $997.89

Q2 2025

Shares 28,280 Value ($000) $27,996 Avg Close $990.72 Range $868.14 - $1064.10

Q1 2025

Shares 28,605 Value ($000) $27,054 Avg Close $970.56 Range $877.95 - $1073.82

Q4 2024

Shares 30,123 Value ($000) $27,601 Avg Close $922.64 Range $861.51 - $1003.02

Q3 2024

Shares 30,929 Value ($000) $27,419 Avg Close $861.91 Range $787.84 - $917.81

Q2 2024

Shares 31,591 Value ($000) $26,852 Avg Close $773.82 Range $690.64 - $867.04

Q1 2024

Shares 32,780 Value ($000) $24,016 Avg Close $706.75 Range $633.49 - $779.59

Q4 2023

Shares 33,111 Value ($000) $21,856 Avg Close $573.49 Range $521.47 - $661.25

Q3 2023

Shares 33,555 Value ($000) $18,957 Avg Close $532.21 Range $505.45 - $552.31

Q2 2023

Shares 33,589 Value ($000) $18,084 Avg Close $487.14 Range $459.09 - $519.84

Q1 2023

Shares 33,807 Value ($000) $16,798 Avg Close $471.27 Range $429.88 - $509.61

Q4 2022

Shares 34,183 Value ($000) $15,605 Avg Close $468.77 Range $430.19 - $520.75

Q3 2022

Shares 36,369 Value ($000) $17,176 Avg Close $498.08 Range $444.08 - $541.06

Q2 2022

Shares 36,689 Value ($000) $17,584 Avg Close $484.91 Range $388.78 - $584.62

Q1 2022

Shares 37,028 Value ($000) $21,323 Avg Close $500.83 Range $447.15 - $559.84

Q4 2021

Shares 36,193 Value ($000) $20,547 Avg Close $488.10 Range $415.17 - $544.86

Q3 2021

Shares 38,242 Value ($000) $17,184 Avg Close $418.22 Range $374.22 - $447.84

Q2 2021

Shares 37,580 Value ($000) $14,870 Avg Close $359.04 Range $333.36 - $380.48

Q1 2021

Shares 37,675 Value ($000) $13,279 Avg Close $329.77 Range $291.05 - $361.01

Q4 2020

Shares 37,158 Value ($000) $14,000 Avg Close $347.39 Range $324.71 - $367.18

Q3 2020

Shares 37,535 Value ($000) $13,325 Avg Close $309.06 Range $276.17 - $334.67

Q2 2020

Shares 37,944 Value ($000) $11,447 Avg Close $279.18 Range $257.36 - $295.59

Q1 2020

Shares 38,620 Value ($000) $11,013 Avg Close $277.78 Range $248.54 - $298.00

Q4 2019

Shares 38,771 Value ($000) $11,396 Avg Close $271.52 Range $256.90 - $280.77

Q3 2019

Shares 36,974 Value ($000) $10,985 Avg Close $256.34 Range $238.19 - $280.38

Q2 2019

Shares 37,253 Value ($000) $9,845 Avg Close $226.60 Range $212.14 - $244.81

Q1 2019

Shares 37,563 Value ($000) $9,066 Avg Close $198.35 Range $180.94 - $220.09

Q4 2018

Shares 37,967 Value ($000) $7,734 Avg Close $201.98 Range $171.58 - $217.57

Q3 2018

Shares 39,117 Value ($000) $9,188 Avg Close $203.13 Range $185.65 - $221.43

Q2 2018

Shares 39,613 Value ($000) $8,278 Avg Close $177.76 Range $162.55 - $191.42

Q1 2018

Shares 39,131 Value ($000) $7,373 Avg Close $169.26 Range $157.50 - $179.09

Q4 2017

Shares 39,742 Value ($000) $7,397 Avg Close $154.45 Range $137.67 - $175.03

Q3 2017

Shares 35,012 Value ($000) $5,751 Avg Close $140.12 Range $133.57 - $147.68

Q2 2017

Shares 33,576 Value ($000) $5,370 Avg Close $150.98 Range $139.41 - $162.71

Q1 2017

Shares 27,867 Value ($000) $4,672 Avg Close $142.87 Range $134.91 - $152.51

Q4 2016

Shares 6,645 Value ($000) $1,064 Avg Close $129.79 Range $120.95 - $140.39

Q3 2016

Shares 6,573 Value ($000) $1,002 Avg Close $136.95 Range $124.90 - $143.90

Q2 2016

Shares 6,597 Value ($000) $1,036 Avg Close $128.04 Range $117.26 - $134.37

Q1 2016

Shares 6,736 Value ($000) $1,062 Avg Close $127.74 Range $119.17 - $135.67

Q4 2015

Shares 6,655 Value ($000) $1,075 Avg Close $132.84 Range $119.34 - $142.82

Q3 2015

Shares 6,302 Value ($000) $912 Avg Close $119.60 Range $98.22 - $123.53

Q2 2015

Shares 6,697 Value ($000) $905 Avg Close $120.23 Range $112.77 - $127.67

Q1 2015

Shares 6,364 Value ($000) $965 Avg Close $120.91 Range $111.40 - $128.73

Q4 2014

Shares 6,441 Value ($000) $913 Avg Close $109.42 Range $98.12 - $118.34

Q3 2014

Shares 5,604 Value ($000) $702 Avg Close $97.13 Range $92.09 - $102.72

Q2 2014

Shares 5,797 Value ($000) $667 Avg Close $91.81 Range $88.18 - $95.25

Q1 2014

Shares 5,679 Value ($000) $635 Avg Close $91.29 Range $87.26 - $95.07

Q4 2013

Shares 10,284 Value ($000) $1,224 Avg Close $95.15 Range $87.55 - $100.50

Q3 2013

Shares 9,650 Value ($000) $1,111 Avg Close $91.64 Range $87.25 - $95.29

Q2 2013

Shares 9,544 Value ($000) $1,056 Avg Close $86.56 Range $81.59 - $91.78

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	27,895	$24,055	$905.73	$844.06 - $962.64
Q3 2025	28,471	$26,354	$956.70	$902.01 - $997.89
Q2 2025	28,280	$27,996	$990.72	$868.14 - $1064.10
Q1 2025	28,605	$27,054	$970.56	$877.95 - $1073.82
Q4 2024	30,123	$27,601	$922.64	$861.51 - $1003.02
Q3 2024	30,929	$27,419	$861.91	$787.84 - $917.81
Q2 2024	31,591	$26,852	$773.82	$690.64 - $867.04
Q1 2024	32,780	$24,016	$706.75	$633.49 - $779.59
Q4 2023	33,111	$21,856	$573.49	$521.47 - $661.25
Q3 2023	33,555	$18,957	$532.21	$505.45 - $552.31
Q2 2023	33,589	$18,084	$487.14	$459.09 - $519.84
Q1 2023	33,807	$16,798	$471.27	$429.88 - $509.61
Q4 2022	34,183	$15,605	$468.77	$430.19 - $520.75
Q3 2022	36,369	$17,176	$498.08	$444.08 - $541.06
Q2 2022	36,689	$17,584	$484.91	$388.78 - $584.62
Q1 2022	37,028	$21,323	$500.83	$447.15 - $559.84
Q4 2021	36,193	$20,547	$488.10	$415.17 - $544.86
Q3 2021	38,242	$17,184	$418.22	$374.22 - $447.84
Q2 2021	37,580	$14,870	$359.04	$333.36 - $380.48
Q1 2021	37,675	$13,279	$329.77	$291.05 - $361.01
Q4 2020	37,158	$14,000	$347.39	$324.71 - $367.18
Q3 2020	37,535	$13,325	$309.06	$276.17 - $334.67
Q2 2020	37,944	$11,447	$279.18	$257.36 - $295.59
Q1 2020	38,620	$11,013	$277.78	$248.54 - $298.00
Q4 2019	38,771	$11,396	$271.52	$256.90 - $280.77
Q3 2019	36,974	$10,985	$256.34	$238.19 - $280.38
Q2 2019	37,253	$9,845	$226.60	$212.14 - $244.81
Q1 2019	37,563	$9,066	$198.35	$180.94 - $220.09
Q4 2018	37,967	$7,734	$201.98	$171.58 - $217.57
Q3 2018	39,117	$9,188	$203.13	$185.65 - $221.43
Q2 2018	39,613	$8,278	$177.76	$162.55 - $191.42
Q1 2018	39,131	$7,373	$169.26	$157.50 - $179.09
Q4 2017	39,742	$7,397	$154.45	$137.67 - $175.03
Q3 2017	35,012	$5,751	$140.12	$133.57 - $147.68
Q2 2017	33,576	$5,370	$150.98	$139.41 - $162.71
Q1 2017	27,867	$4,672	$142.87	$134.91 - $152.51
Q4 2016	6,645	$1,064	$129.79	$120.95 - $140.39
Q3 2016	6,573	$1,002	$136.95	$124.90 - $143.90
Q2 2016	6,597	$1,036	$128.04	$117.26 - $134.37
Q1 2016	6,736	$1,062	$127.74	$119.17 - $135.67
Q4 2015	6,655	$1,075	$132.84	$119.34 - $142.82
Q3 2015	6,302	$912	$119.60	$98.22 - $123.53
Q2 2015	6,697	$905	$120.23	$112.77 - $127.67
Q1 2015	6,364	$965	$120.91	$111.40 - $128.73
Q4 2014	6,441	$913	$109.42	$98.12 - $118.34
Q3 2014	5,604	$702	$97.13	$92.09 - $102.72
Q2 2014	5,797	$667	$91.81	$88.18 - $95.25
Q1 2014	5,679	$635	$91.29	$87.26 - $95.07
Q4 2013	10,284	$1,224	$95.15	$87.55 - $100.50
Q3 2013	9,650	$1,111	$91.64	$87.25 - $95.29
Q2 2013	9,544	$1,056	$86.56	$81.59 - $91.78