COSTCO WHSL CORP NEW

Ticker: COST CUSIP: 22160K105 Class: COM

MASSACHUSETTS FINANCIAL SERVICES CO /MA/'s Holding History (CIK: 0000912938)

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

Q4 2025

Shares 142,063 Value ($000) $122,507 Avg Close $905.73 Range $844.06 - $962.64

Q3 2025

Shares 163,356 Value ($000) $151,207 Avg Close $956.70 Range $902.01 - $997.89

Q2 2025

Shares 162,705 Value ($000) $161,068 Avg Close $990.72 Range $868.14 - $1064.10

Q1 2025

Shares 180,706 Value ($000) $170,908 Avg Close $970.56 Range $877.95 - $1073.82

Q4 2024

Shares 196,472 Value ($000) $180,021 Avg Close $922.64 Range $861.51 - $1003.02

Q3 2024

Shares 205,869 Value ($000) $182,507 Avg Close $861.91 Range $787.84 - $917.81

Q2 2024

Shares 236,240 Value ($000) $200,802 Avg Close $773.82 Range $690.64 - $867.04

Q1 2024

Shares 242,573 Value ($000) $177,716 Avg Close $706.75 Range $633.49 - $779.59

Q4 2023

Shares 268,459 Value ($000) $177,204 Avg Close $573.49 Range $521.47 - $661.25

Q3 2023

Shares 277,870 Value ($000) $156,985 Avg Close $532.21 Range $505.45 - $552.31

Q2 2023

Shares 281,958 Value ($000) $151,801 Avg Close $487.14 Range $459.09 - $519.84

Q1 2023

Shares 288,418 Value ($000) $143,306 Avg Close $471.27 Range $429.88 - $509.61

Q4 2022

Shares 292,170 Value ($000) $133,376 Avg Close $468.77 Range $430.19 - $520.75

Q3 2022

Shares 331,695 Value ($000) $156,649 Avg Close $498.08 Range $444.08 - $541.06

Q2 2022

Shares 328,318 Value ($000) $157,356 Avg Close $484.91 Range $388.78 - $584.62

Q1 2022

Shares 355,518 Value ($000) $204,726 Avg Close $500.83 Range $447.15 - $559.84

Q4 2021

Shares 622,000 Value ($000) $353,110 Avg Close $488.10 Range $415.17 - $544.86

Q3 2021

Shares 728,182 Value ($000) $327,210 Avg Close $418.22 Range $374.22 - $447.84

Q2 2021

Shares 830,931 Value ($000) $328,774 Avg Close $359.04 Range $333.36 - $380.48

Q1 2021

Shares 888,798 Value ($000) $313,284 Avg Close $329.77 Range $291.05 - $361.01

Q4 2020

Shares 1,100,533 Value ($000) $414,660 Avg Close $347.39 Range $324.71 - $367.18

Q3 2020

Shares 1,121,151 Value ($000) $398,009 Avg Close $309.06 Range $276.17 - $334.67

Q2 2020

Shares 1,048,311 Value ($000) $317,858 Avg Close $279.18 Range $257.36 - $295.59

Q1 2020

Shares 2,050,368 Value ($000) $584,622 Avg Close $277.78 Range $248.54 - $298.00

Q4 2019

Shares 2,075,530 Value ($000) $610,040 Avg Close $271.52 Range $256.90 - $280.77

Q3 2019

Shares 2,139,335 Value ($000) $616,364 Avg Close $256.34 Range $238.19 - $280.38

Q2 2019

Shares 2,308,032 Value ($000) $609,921 Avg Close $226.60 Range $212.14 - $244.81

Q1 2019

Shares 2,826,871 Value ($000) $684,498 Avg Close $198.35 Range $180.94 - $220.09

Q4 2018

Shares 2,756,586 Value ($000) $561,543 Avg Close $201.98 Range $171.58 - $217.57

Q3 2018

Shares 2,638,699 Value ($000) $619,778 Avg Close $203.13 Range $185.65 - $221.43

Q2 2018

Shares 2,644,145 Value ($000) $552,572 Avg Close $177.76 Range $162.55 - $191.42

Q1 2018

Shares 2,706,473 Value ($000) $509,981 Avg Close $169.26 Range $157.50 - $179.09

Q4 2017

Shares 2,819,033 Value ($000) $524,678 Avg Close $154.45 Range $137.67 - $175.03

Q3 2017

Shares 2,831,698 Value ($000) $465,219 Avg Close $140.12 Range $133.57 - $147.68

Q2 2017

Shares 2,768,620 Value ($000) $442,787 Avg Close $150.98 Range $139.41 - $162.71

Q1 2017

Shares 3,069,830 Value ($000) $514,780 Avg Close $142.87 Range $134.91 - $152.51

Q4 2016

Shares 3,112,066 Value ($000) $498,273 Avg Close $129.79 Range $120.95 - $140.39

Q3 2016

Shares 2,948,558 Value ($000) $449,684 Avg Close $136.95 Range $124.90 - $143.90

Q2 2016

Shares 3,511,200 Value ($000) $551,399 Avg Close $128.04 Range $117.26 - $134.37

Q1 2016

Shares 3,336,280 Value ($000) $525,731 Avg Close $127.74 Range $119.17 - $135.67

Q4 2015

Shares 3,218,281 Value ($000) $519,752 Avg Close $132.84 Range $119.34 - $142.82

Q3 2015

Shares 2,670,712 Value ($000) $386,105 Avg Close $119.60 Range $98.22 - $123.53

Q2 2015

Shares 1,049,488 Value ($000) $141,743,850 Avg Close $120.23 Range $112.77 - $127.67

Q1 2015

Shares 1,070,096 Value ($000) $162,114,193 Avg Close $120.91 Range $111.40 - $128.73

Q4 2014

Shares 1,078,956 Value ($000) $152,942,012 Avg Close $109.42 Range $98.12 - $118.34

Q3 2014

Shares 1,051,814 Value ($000) $131,813 Avg Close $97.13 Range $92.09 - $102.72

Q2 2014

Shares 1,004,881 Value ($000) $115,722 Avg Close $91.81 Range $88.18 - $95.25

Q1 2014

Shares 1,123,615 Value ($000) $125,485,323 Avg Close $91.29 Range $87.26 - $95.07

Q4 2013

Shares 1,110,800 Value ($000) $132,207,416 Avg Close $95.15 Range $87.55 - $100.50

Q3 2013

Shares 1,044,015 Value ($000) $120,239,208 Avg Close $91.64 Range $87.25 - $95.29

Q2 2013

Shares 1,057,979 Value ($000) $116,980,738 Avg Close $86.56 Range $81.59 - $91.78

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	142,063	$122,507	$905.73	$844.06 - $962.64
Q3 2025	163,356	$151,207	$956.70	$902.01 - $997.89
Q2 2025	162,705	$161,068	$990.72	$868.14 - $1064.10
Q1 2025	180,706	$170,908	$970.56	$877.95 - $1073.82
Q4 2024	196,472	$180,021	$922.64	$861.51 - $1003.02
Q3 2024	205,869	$182,507	$861.91	$787.84 - $917.81
Q2 2024	236,240	$200,802	$773.82	$690.64 - $867.04
Q1 2024	242,573	$177,716	$706.75	$633.49 - $779.59
Q4 2023	268,459	$177,204	$573.49	$521.47 - $661.25
Q3 2023	277,870	$156,985	$532.21	$505.45 - $552.31
Q2 2023	281,958	$151,801	$487.14	$459.09 - $519.84
Q1 2023	288,418	$143,306	$471.27	$429.88 - $509.61
Q4 2022	292,170	$133,376	$468.77	$430.19 - $520.75
Q3 2022	331,695	$156,649	$498.08	$444.08 - $541.06
Q2 2022	328,318	$157,356	$484.91	$388.78 - $584.62
Q1 2022	355,518	$204,726	$500.83	$447.15 - $559.84
Q4 2021	622,000	$353,110	$488.10	$415.17 - $544.86
Q3 2021	728,182	$327,210	$418.22	$374.22 - $447.84
Q2 2021	830,931	$328,774	$359.04	$333.36 - $380.48
Q1 2021	888,798	$313,284	$329.77	$291.05 - $361.01
Q4 2020	1,100,533	$414,660	$347.39	$324.71 - $367.18
Q3 2020	1,121,151	$398,009	$309.06	$276.17 - $334.67
Q2 2020	1,048,311	$317,858	$279.18	$257.36 - $295.59
Q1 2020	2,050,368	$584,622	$277.78	$248.54 - $298.00
Q4 2019	2,075,530	$610,040	$271.52	$256.90 - $280.77
Q3 2019	2,139,335	$616,364	$256.34	$238.19 - $280.38
Q2 2019	2,308,032	$609,921	$226.60	$212.14 - $244.81
Q1 2019	2,826,871	$684,498	$198.35	$180.94 - $220.09
Q4 2018	2,756,586	$561,543	$201.98	$171.58 - $217.57
Q3 2018	2,638,699	$619,778	$203.13	$185.65 - $221.43
Q2 2018	2,644,145	$552,572	$177.76	$162.55 - $191.42
Q1 2018	2,706,473	$509,981	$169.26	$157.50 - $179.09
Q4 2017	2,819,033	$524,678	$154.45	$137.67 - $175.03
Q3 2017	2,831,698	$465,219	$140.12	$133.57 - $147.68
Q2 2017	2,768,620	$442,787	$150.98	$139.41 - $162.71
Q1 2017	3,069,830	$514,780	$142.87	$134.91 - $152.51
Q4 2016	3,112,066	$498,273	$129.79	$120.95 - $140.39
Q3 2016	2,948,558	$449,684	$136.95	$124.90 - $143.90
Q2 2016	3,511,200	$551,399	$128.04	$117.26 - $134.37
Q1 2016	3,336,280	$525,731	$127.74	$119.17 - $135.67
Q4 2015	3,218,281	$519,752	$132.84	$119.34 - $142.82
Q3 2015	2,670,712	$386,105	$119.60	$98.22 - $123.53
Q2 2015	1,049,488	$141,743,850	$120.23	$112.77 - $127.67
Q1 2015	1,070,096	$162,114,193	$120.91	$111.40 - $128.73
Q4 2014	1,078,956	$152,942,012	$109.42	$98.12 - $118.34
Q3 2014	1,051,814	$131,813	$97.13	$92.09 - $102.72
Q2 2014	1,004,881	$115,722	$91.81	$88.18 - $95.25
Q1 2014	1,123,615	$125,485,323	$91.29	$87.26 - $95.07
Q4 2013	1,110,800	$132,207,416	$95.15	$87.55 - $100.50
Q3 2013	1,044,015	$120,239,208	$91.64	$87.25 - $95.29
Q2 2013	1,057,979	$116,980,738	$86.56	$81.59 - $91.78