COSTCO WHSL CORP NEW

Ticker: COST CUSIP: 22160K105 Class: COM

GAMCO INVESTORS, INC. ET AL's Holding History (CIK: 0000807249)

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

Q4 2025

Shares 6,520 Value ($000) $5,622 Avg Close $905.73 Range $844.06 - $962.64

Q3 2025

Shares 8,446 Value ($000) $7,818 Avg Close $956.70 Range $902.01 - $997.89

Q2 2025

Shares 8,393 Value ($000) $8,309 Avg Close $990.72 Range $868.14 - $1064.10

Q1 2025

Shares 7,190 Value ($000) $6,800 Avg Close $970.56 Range $877.95 - $1073.82

Q4 2024

Shares 7,031 Value ($000) $6,442 Avg Close $922.64 Range $861.51 - $1003.02

Q3 2024

Shares 7,017 Value ($000) $6,221 Avg Close $861.91 Range $787.84 - $917.81

Q2 2024

Shares 6,591 Value ($000) $5,602 Avg Close $773.82 Range $690.64 - $867.04

Q1 2024

Shares 11,228 Value ($000) $8,226 Avg Close $706.75 Range $633.49 - $779.59

Q4 2023

Shares 11,366 Value ($000) $7,502 Avg Close $573.49 Range $521.47 - $661.25

Q3 2023

Shares 11,350 Value ($000) $6,412 Avg Close $532.21 Range $505.45 - $552.31

Q2 2023

Shares 11,589 Value ($000) $6,239 Avg Close $487.14 Range $459.09 - $519.84

Q1 2023

Shares 11,561 Value ($000) $5,744 Avg Close $471.27 Range $429.88 - $509.61

Q4 2022

Shares 11,759 Value ($000) $5,368 Avg Close $468.77 Range $430.19 - $520.75

Q3 2022

Shares 12,289 Value ($000) $5,804 Avg Close $498.08 Range $444.08 - $541.06

Q2 2022

Shares 7,309 Value ($000) $3,503 Avg Close $484.91 Range $388.78 - $584.62

Q1 2022

Shares 7,749 Value ($000) $4,462 Avg Close $500.83 Range $447.15 - $559.84

Q4 2021

Shares 7,818 Value ($000) $4,438 Avg Close $488.10 Range $415.17 - $544.86

Q3 2021

Shares 8,128 Value ($000) $3,652 Avg Close $418.22 Range $374.22 - $447.84

Q2 2021

Shares 8,158 Value ($000) $3,228 Avg Close $359.04 Range $333.36 - $380.48

Q1 2021

Shares 8,190 Value ($000) $2,887 Avg Close $329.77 Range $291.05 - $361.01

Q4 2020

Shares 9,917 Value ($000) $3,737 Avg Close $347.39 Range $324.71 - $367.18

Q3 2020

Shares 10,505 Value ($000) $3,729 Avg Close $309.06 Range $276.17 - $334.67

Q2 2020

Shares 10,905 Value ($000) $3,307 Avg Close $279.18 Range $257.36 - $295.59

Q1 2020

Shares 9,782 Value ($000) $2,789 Avg Close $277.78 Range $248.54 - $298.00

Q4 2019

Shares 10,206 Value ($000) $3,000 Avg Close $271.52 Range $256.90 - $280.77

Q3 2019

Shares 17,371 Value ($000) $5,005 Avg Close $256.34 Range $238.19 - $280.38

Q2 2019

Shares 18,040 Value ($000) $4,767 Avg Close $226.60 Range $212.14 - $244.81

Q1 2019

Shares 10,107 Value ($000) $2,447 Avg Close $198.35 Range $180.94 - $220.09

Q4 2018

Shares 10,935 Value ($000) $2,228 Avg Close $201.98 Range $171.58 - $217.57

Q3 2018

Shares 10,995 Value ($000) $2,583 Avg Close $203.13 Range $185.65 - $221.43

Q2 2018

Shares 11,535 Value ($000) $2,411 Avg Close $177.76 Range $162.55 - $191.42

Q1 2018

Shares 13,065 Value ($000) $2,462 Avg Close $169.26 Range $157.50 - $179.09

Q4 2017

Shares 12,800 Value ($000) $2,382 Avg Close $154.45 Range $137.67 - $175.03

Q3 2017

Shares 32,880 Value ($000) $5,402 Avg Close $140.12 Range $133.57 - $147.68

Q2 2017

Shares 31,670 Value ($000) $5,065 Avg Close $150.98 Range $139.41 - $162.71

Q1 2017

Shares 31,724 Value ($000) $5,320 Avg Close $142.87 Range $134.91 - $152.51

Q4 2016

Shares 30,664 Value ($000) $4,910 Avg Close $129.79 Range $120.95 - $140.39

Q3 2016

Shares 33,234 Value ($000) $5,069 Avg Close $136.95 Range $124.90 - $143.90

Q2 2016

Shares 39,024 Value ($000) $6,128 Avg Close $128.04 Range $117.26 - $134.37

Q1 2016

Shares 47,220 Value ($000) $7,441 Avg Close $127.74 Range $119.17 - $135.67

Q4 2015

Shares 47,445 Value ($000) $7,662 Avg Close $132.84 Range $119.34 - $142.82

Q3 2015

Shares 51,825 Value ($000) $7,492 Avg Close $119.60 Range $98.22 - $123.53

Q2 2015

Shares 97,975 Value ($000) $13,233 Avg Close $120.23 Range $112.77 - $127.67

Q1 2015

Shares 104,415 Value ($000) $15,818 Avg Close $120.91 Range $111.40 - $128.73

Q4 2014

Shares 105,460 Value ($000) $14,949 Avg Close $109.42 Range $98.12 - $118.34

Q3 2014

Shares 105,460 Value ($000) $13,216 Avg Close $97.13 Range $92.09 - $102.72

Q2 2014

Shares 106,320 Value ($000) $12,244 Avg Close $91.81 Range $88.18 - $95.25

Q1 2014

Shares 108,555 Value ($000) $12,123 Avg Close $91.29 Range $87.26 - $95.07

Q4 2013

Shares 109,655 Value ($000) $13,051 Avg Close $95.15 Range $87.55 - $100.50

Q3 2013

Shares 108,055 Value ($000) $12,445 Avg Close $91.64 Range $87.25 - $95.29

Q2 2013

Shares 102,510 Value ($000) $11,335 Avg Close $86.56 Range $81.59 - $91.78

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	6,520	$5,622	$905.73	$844.06 - $962.64
Q3 2025	8,446	$7,818	$956.70	$902.01 - $997.89
Q2 2025	8,393	$8,309	$990.72	$868.14 - $1064.10
Q1 2025	7,190	$6,800	$970.56	$877.95 - $1073.82
Q4 2024	7,031	$6,442	$922.64	$861.51 - $1003.02
Q3 2024	7,017	$6,221	$861.91	$787.84 - $917.81
Q2 2024	6,591	$5,602	$773.82	$690.64 - $867.04
Q1 2024	11,228	$8,226	$706.75	$633.49 - $779.59
Q4 2023	11,366	$7,502	$573.49	$521.47 - $661.25
Q3 2023	11,350	$6,412	$532.21	$505.45 - $552.31
Q2 2023	11,589	$6,239	$487.14	$459.09 - $519.84
Q1 2023	11,561	$5,744	$471.27	$429.88 - $509.61
Q4 2022	11,759	$5,368	$468.77	$430.19 - $520.75
Q3 2022	12,289	$5,804	$498.08	$444.08 - $541.06
Q2 2022	7,309	$3,503	$484.91	$388.78 - $584.62
Q1 2022	7,749	$4,462	$500.83	$447.15 - $559.84
Q4 2021	7,818	$4,438	$488.10	$415.17 - $544.86
Q3 2021	8,128	$3,652	$418.22	$374.22 - $447.84
Q2 2021	8,158	$3,228	$359.04	$333.36 - $380.48
Q1 2021	8,190	$2,887	$329.77	$291.05 - $361.01
Q4 2020	9,917	$3,737	$347.39	$324.71 - $367.18
Q3 2020	10,505	$3,729	$309.06	$276.17 - $334.67
Q2 2020	10,905	$3,307	$279.18	$257.36 - $295.59
Q1 2020	9,782	$2,789	$277.78	$248.54 - $298.00
Q4 2019	10,206	$3,000	$271.52	$256.90 - $280.77
Q3 2019	17,371	$5,005	$256.34	$238.19 - $280.38
Q2 2019	18,040	$4,767	$226.60	$212.14 - $244.81
Q1 2019	10,107	$2,447	$198.35	$180.94 - $220.09
Q4 2018	10,935	$2,228	$201.98	$171.58 - $217.57
Q3 2018	10,995	$2,583	$203.13	$185.65 - $221.43
Q2 2018	11,535	$2,411	$177.76	$162.55 - $191.42
Q1 2018	13,065	$2,462	$169.26	$157.50 - $179.09
Q4 2017	12,800	$2,382	$154.45	$137.67 - $175.03
Q3 2017	32,880	$5,402	$140.12	$133.57 - $147.68
Q2 2017	31,670	$5,065	$150.98	$139.41 - $162.71
Q1 2017	31,724	$5,320	$142.87	$134.91 - $152.51
Q4 2016	30,664	$4,910	$129.79	$120.95 - $140.39
Q3 2016	33,234	$5,069	$136.95	$124.90 - $143.90
Q2 2016	39,024	$6,128	$128.04	$117.26 - $134.37
Q1 2016	47,220	$7,441	$127.74	$119.17 - $135.67
Q4 2015	47,445	$7,662	$132.84	$119.34 - $142.82
Q3 2015	51,825	$7,492	$119.60	$98.22 - $123.53
Q2 2015	97,975	$13,233	$120.23	$112.77 - $127.67
Q1 2015	104,415	$15,818	$120.91	$111.40 - $128.73
Q4 2014	105,460	$14,949	$109.42	$98.12 - $118.34
Q3 2014	105,460	$13,216	$97.13	$92.09 - $102.72
Q2 2014	106,320	$12,244	$91.81	$88.18 - $95.25
Q1 2014	108,555	$12,123	$91.29	$87.26 - $95.07
Q4 2013	109,655	$13,051	$95.15	$87.55 - $100.50
Q3 2013	108,055	$12,445	$91.64	$87.25 - $95.29
Q2 2013	102,510	$11,335	$86.56	$81.59 - $91.78