COSTCO WHSL CORP NEW

Ticker: COST CUSIP: 22160K105 Class: COM

SIGMA INVESTMENT COUNSELORS INC's Holding History (CIK: 0001085163)

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

Q4 2025

Shares 13,075 Value ($000) $11,275 Avg Close $905.73 Range $844.06 - $962.64

Q3 2025

Shares 13,135 Value ($000) $12,158 Avg Close $956.70 Range $902.01 - $997.89

Q2 2025

Shares 13,284 Value ($000) $13,150 Avg Close $990.72 Range $868.14 - $1064.10

Q1 2025

Shares 12,743 Value ($000) $12,052 Avg Close $970.56 Range $877.95 - $1073.82

Q4 2024

Shares 14,874 Value ($000) $13,629 Avg Close $922.64 Range $861.51 - $1003.02

Q3 2024

Shares 15,974 Value ($000) $14,161 Avg Close $861.91 Range $787.84 - $917.81

Q2 2024

Shares 16,013 Value ($000) $13,611 Avg Close $773.82 Range $690.64 - $867.04

Q1 2024

Shares 15,963 Value ($000) $11,695 Avg Close $706.75 Range $633.49 - $779.59

Q4 2023

Shares 15,690 Value ($000) $10,357 Avg Close $573.49 Range $521.47 - $661.25

Q3 2023

Shares 15,530 Value ($000) $8,774 Avg Close $532.21 Range $505.45 - $552.31

Q2 2023

Shares 15,633 Value ($000) $8,416 Avg Close $487.14 Range $459.09 - $519.84

Q1 2023

Shares 15,515 Value ($000) $7,709 Avg Close $471.27 Range $429.88 - $509.61

Q4 2022

Shares 15,928 Value ($000) $7,271 Avg Close $468.77 Range $430.19 - $520.75

Q3 2022

Shares 15,488 Value ($000) $7,315 Avg Close $498.08 Range $444.08 - $541.06

Q2 2022

Shares 15,598 Value ($000) $7,476 Avg Close $484.91 Range $388.78 - $584.62

Q1 2022

Shares 15,545 Value ($000) $8,952 Avg Close $500.83 Range $447.15 - $559.84

Q4 2021

Shares 15,579 Value ($000) $8,844 Avg Close $488.10 Range $415.17 - $544.86

Q3 2021

Shares 15,884 Value ($000) $7,138 Avg Close $418.22 Range $374.22 - $447.84

Q2 2021

Shares 15,915 Value ($000) $6,297 Avg Close $359.04 Range $333.36 - $380.48

Q1 2021

Shares 16,298 Value ($000) $5,745 Avg Close $329.77 Range $291.05 - $361.01

Q4 2020

Shares 16,095 Value ($000) $6,064 Avg Close $347.39 Range $324.71 - $367.18

Q3 2020

Shares 7,508 Value ($000) $2,665 Avg Close $309.06 Range $276.17 - $334.67

Q2 2020

Shares 16,736 Value ($000) $5,075 Avg Close $279.18 Range $257.36 - $295.59

Q1 2020

Shares 16,049 Value ($000) $4,576 Avg Close $277.78 Range $248.54 - $298.00

Q4 2019

Shares 15,929 Value ($000) $4,682 Avg Close $271.52 Range $256.90 - $280.77

Q3 2019

Shares 15,964 Value ($000) $4,599 Avg Close $256.34 Range $238.19 - $280.38

Q2 2019

Shares 15,748 Value ($000) $4,162 Avg Close $226.60 Range $212.14 - $244.81

Q1 2019

Shares 15,424 Value ($000) $3,735 Avg Close $198.35 Range $180.94 - $220.09

Q4 2018

Shares 15,634 Value ($000) $3,185 Avg Close $201.98 Range $171.58 - $217.57

Q3 2018

Shares 15,453 Value ($000) $3,630 Avg Close $203.13 Range $185.65 - $221.43

Q2 2018

Shares 15,365 Value ($000) $3,211 Avg Close $177.76 Range $162.55 - $191.42

Q1 2018

Shares 15,876 Value ($000) $2,992 Avg Close $169.26 Range $157.50 - $179.09

Q4 2017

Shares 16,032 Value ($000) $2,984 Avg Close $154.45 Range $137.67 - $175.03

Q3 2017

Shares 15,891 Value ($000) $2,611 Avg Close $140.12 Range $133.57 - $147.68

Q2 2017

Shares 16,276 Value ($000) $2,603 Avg Close $150.98 Range $139.41 - $162.71

Q1 2017

Shares 16,426 Value ($000) $2,754 Avg Close $142.87 Range $134.91 - $152.51

Q4 2016

Shares 18,271 Value ($000) $2,925 Avg Close $129.79 Range $120.95 - $140.39

Q3 2016

Shares 18,537 Value ($000) $2,827 Avg Close $136.95 Range $124.90 - $143.90

Q2 2016

Shares 18,227 Value ($000) $2,862 Avg Close $128.04 Range $117.26 - $134.37

Q1 2016

Shares 18,505 Value ($000) $2,916 Avg Close $127.74 Range $119.17 - $135.67

Q4 2015

Shares 23,297 Value ($000) $3,762 Avg Close $132.84 Range $119.34 - $142.82

Q3 2015

Shares 22,877 Value ($000) $3,307 Avg Close $119.60 Range $98.22 - $123.53

Q2 2015

Shares 22,626 Value ($000) $3,056 Avg Close $120.23 Range $112.77 - $127.67

Q1 2015

Shares 22,571 Value ($000) $3,419 Avg Close $120.91 Range $111.40 - $128.73

Q4 2014

Shares 22,621 Value ($000) $3,207 Avg Close $109.42 Range $98.12 - $118.34

Q3 2014

Shares 22,501 Value ($000) $2,820 Avg Close $97.13 Range $92.09 - $102.72

Q2 2014

Shares 22,781 Value ($000) $2,623 Avg Close $91.81 Range $88.18 - $95.25

Q1 2014

Shares 23,891 Value ($000) $2,668 Avg Close $91.29 Range $87.26 - $95.07

Q4 2013

Shares 24,147 Value ($000) $2,874 Avg Close $95.15 Range $87.55 - $100.50

Q3 2013

Shares 24,564 Value ($000) $2,829 Avg Close $91.64 Range $87.25 - $95.29

Q2 2013

Shares 23,833 Value ($000) $2,635 Avg Close $86.56 Range $81.59 - $91.78

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	13,075	$11,275	$905.73	$844.06 - $962.64
Q3 2025	13,135	$12,158	$956.70	$902.01 - $997.89
Q2 2025	13,284	$13,150	$990.72	$868.14 - $1064.10
Q1 2025	12,743	$12,052	$970.56	$877.95 - $1073.82
Q4 2024	14,874	$13,629	$922.64	$861.51 - $1003.02
Q3 2024	15,974	$14,161	$861.91	$787.84 - $917.81
Q2 2024	16,013	$13,611	$773.82	$690.64 - $867.04
Q1 2024	15,963	$11,695	$706.75	$633.49 - $779.59
Q4 2023	15,690	$10,357	$573.49	$521.47 - $661.25
Q3 2023	15,530	$8,774	$532.21	$505.45 - $552.31
Q2 2023	15,633	$8,416	$487.14	$459.09 - $519.84
Q1 2023	15,515	$7,709	$471.27	$429.88 - $509.61
Q4 2022	15,928	$7,271	$468.77	$430.19 - $520.75
Q3 2022	15,488	$7,315	$498.08	$444.08 - $541.06
Q2 2022	15,598	$7,476	$484.91	$388.78 - $584.62
Q1 2022	15,545	$8,952	$500.83	$447.15 - $559.84
Q4 2021	15,579	$8,844	$488.10	$415.17 - $544.86
Q3 2021	15,884	$7,138	$418.22	$374.22 - $447.84
Q2 2021	15,915	$6,297	$359.04	$333.36 - $380.48
Q1 2021	16,298	$5,745	$329.77	$291.05 - $361.01
Q4 2020	16,095	$6,064	$347.39	$324.71 - $367.18
Q3 2020	7,508	$2,665	$309.06	$276.17 - $334.67
Q2 2020	16,736	$5,075	$279.18	$257.36 - $295.59
Q1 2020	16,049	$4,576	$277.78	$248.54 - $298.00
Q4 2019	15,929	$4,682	$271.52	$256.90 - $280.77
Q3 2019	15,964	$4,599	$256.34	$238.19 - $280.38
Q2 2019	15,748	$4,162	$226.60	$212.14 - $244.81
Q1 2019	15,424	$3,735	$198.35	$180.94 - $220.09
Q4 2018	15,634	$3,185	$201.98	$171.58 - $217.57
Q3 2018	15,453	$3,630	$203.13	$185.65 - $221.43
Q2 2018	15,365	$3,211	$177.76	$162.55 - $191.42
Q1 2018	15,876	$2,992	$169.26	$157.50 - $179.09
Q4 2017	16,032	$2,984	$154.45	$137.67 - $175.03
Q3 2017	15,891	$2,611	$140.12	$133.57 - $147.68
Q2 2017	16,276	$2,603	$150.98	$139.41 - $162.71
Q1 2017	16,426	$2,754	$142.87	$134.91 - $152.51
Q4 2016	18,271	$2,925	$129.79	$120.95 - $140.39
Q3 2016	18,537	$2,827	$136.95	$124.90 - $143.90
Q2 2016	18,227	$2,862	$128.04	$117.26 - $134.37
Q1 2016	18,505	$2,916	$127.74	$119.17 - $135.67
Q4 2015	23,297	$3,762	$132.84	$119.34 - $142.82
Q3 2015	22,877	$3,307	$119.60	$98.22 - $123.53
Q2 2015	22,626	$3,056	$120.23	$112.77 - $127.67
Q1 2015	22,571	$3,419	$120.91	$111.40 - $128.73
Q4 2014	22,621	$3,207	$109.42	$98.12 - $118.34
Q3 2014	22,501	$2,820	$97.13	$92.09 - $102.72
Q2 2014	22,781	$2,623	$91.81	$88.18 - $95.25
Q1 2014	23,891	$2,668	$91.29	$87.26 - $95.07
Q4 2013	24,147	$2,874	$95.15	$87.55 - $100.50
Q3 2013	24,564	$2,829	$91.64	$87.25 - $95.29
Q2 2013	23,833	$2,635	$86.56	$81.59 - $91.78