COSTCO WHSL CORP NEW

Ticker: COST CUSIP: 22160K105 Class: COM

FLAGSHIP HARBOR ADVISORS, LLC's Holding History (CIK: 0001691766)

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

Q4 2025

Shares 5,033 Value ($000) $4,340 Avg Close $905.73 Range $844.06 - $962.64

Q3 2025

Shares 6,856 Value ($000) $6,346 Avg Close $956.70 Range $902.01 - $997.89

Q2 2025

Shares 6,965 Value ($000) $6,895 Avg Close $990.72 Range $868.14 - $1064.10

Q1 2025

Shares 7,035 Value ($000) $6,654 Avg Close $970.56 Range $877.95 - $1073.82

Q4 2024

Shares 7,050 Value ($000) $6,460 Avg Close $922.64 Range $861.51 - $1003.02

Q3 2024

Shares 6,453 Value ($000) $5,721 Avg Close $861.91 Range $787.84 - $917.81

Q2 2024

Shares 6,338 Value ($000) $5,387 Avg Close $773.82 Range $690.64 - $867.04

Q1 2024

Shares 6,408 Value ($000) $4,694 Avg Close $706.75 Range $633.49 - $779.59

Q4 2023

Shares 6,445 Value ($000) $4,254 Avg Close $573.49 Range $521.47 - $661.25

Q3 2023

Shares 6,189 Value ($000) $3,496 Avg Close $532.21 Range $505.45 - $552.31

Q2 2023

Shares 6,536 Value ($000) $3,519 Avg Close $487.14 Range $459.09 - $519.84

Q1 2023

Shares 6,469 Value ($000) $3,214 Avg Close $471.27 Range $429.88 - $509.61

Q4 2022

Shares 5,974 Value ($000) $2,727 Avg Close $468.77 Range $430.19 - $520.75

Q3 2022

Shares 5,853 Value ($000) $2,764 Avg Close $498.08 Range $444.08 - $541.06

Q2 2022

Shares 5,487 Value ($000) $2,630 Avg Close $484.91 Range $388.78 - $584.62

Q1 2022

Shares 3,868 Value ($000) $2,227 Avg Close $500.83 Range $447.15 - $559.84

Q4 2021

Shares 3,561 Value ($000) $2,022 Avg Close $488.10 Range $415.17 - $544.86

Q3 2021

Shares 4,283 Value ($000) $1,695 Avg Close $418.22 Range $374.22 - $447.84

Q2 2021

Shares 4,283 Value ($000) $1,695 Avg Close $359.04 Range $333.36 - $380.48

Q1 2021

Shares 4,123 Value ($000) $1,453 Avg Close $329.77 Range $291.05 - $361.01

Q4 2020

Shares 3,432 Value ($000) $1,293 Avg Close $347.39 Range $324.71 - $367.18

Q3 2020

Shares 3,289 Value ($000) $1,167 Avg Close $309.06 Range $276.17 - $334.67

Q2 2020

Shares 3,324 Value ($000) $1,007 Avg Close $279.18 Range $257.36 - $295.59

Q1 2020

Shares 3,059 Value ($000) $872 Avg Close $277.78 Range $248.54 - $298.00

Q4 2019

Shares 3,102 Value ($000) $912 Avg Close $271.52 Range $256.90 - $280.77

Q3 2019

Shares 3,079 Value ($000) $887 Avg Close $256.34 Range $238.19 - $280.38

Q2 2019

Shares 2,858 Value ($000) $755 Avg Close $226.60 Range $212.14 - $244.81

Q1 2019

Shares 2,883 Value ($000) $698 Avg Close $198.35 Range $180.94 - $220.09

Q4 2018

Shares 2,829 Value ($000) $576 Avg Close $201.98 Range $171.58 - $217.57

Q3 2018

Shares 2,555 Value ($000) $600 Avg Close $203.13 Range $185.65 - $221.43

Q2 2018

Shares 2,051 Value ($000) $428 Avg Close $177.76 Range $162.55 - $191.42

Q1 2018

Shares 1,906 Value ($000) $349 Avg Close $169.26 Range $157.50 - $179.09

Q4 2017

Shares 2,159 Value ($000) $407 Avg Close $154.45 Range $137.67 - $175.03

Q3 2017

Shares 1,775 Value ($000) $276 Avg Close $140.12 Range $133.57 - $147.68

Q2 2017

Shares 1,634 Value ($000) $251 Avg Close $150.98 Range $139.41 - $162.71

Q1 2017

Shares 1,416 Value ($000) $239 Avg Close $142.87 Range $134.91 - $152.51

Q4 2016

Shares 1,420 Value ($000) $239 Avg Close $129.79 Range $120.95 - $140.39

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	5,033	$4,340	$905.73	$844.06 - $962.64
Q3 2025	6,856	$6,346	$956.70	$902.01 - $997.89
Q2 2025	6,965	$6,895	$990.72	$868.14 - $1064.10
Q1 2025	7,035	$6,654	$970.56	$877.95 - $1073.82
Q4 2024	7,050	$6,460	$922.64	$861.51 - $1003.02
Q3 2024	6,453	$5,721	$861.91	$787.84 - $917.81
Q2 2024	6,338	$5,387	$773.82	$690.64 - $867.04
Q1 2024	6,408	$4,694	$706.75	$633.49 - $779.59
Q4 2023	6,445	$4,254	$573.49	$521.47 - $661.25
Q3 2023	6,189	$3,496	$532.21	$505.45 - $552.31
Q2 2023	6,536	$3,519	$487.14	$459.09 - $519.84
Q1 2023	6,469	$3,214	$471.27	$429.88 - $509.61
Q4 2022	5,974	$2,727	$468.77	$430.19 - $520.75
Q3 2022	5,853	$2,764	$498.08	$444.08 - $541.06
Q2 2022	5,487	$2,630	$484.91	$388.78 - $584.62
Q1 2022	3,868	$2,227	$500.83	$447.15 - $559.84
Q4 2021	3,561	$2,022	$488.10	$415.17 - $544.86
Q3 2021	4,283	$1,695	$418.22	$374.22 - $447.84
Q2 2021	4,283	$1,695	$359.04	$333.36 - $380.48
Q1 2021	4,123	$1,453	$329.77	$291.05 - $361.01
Q4 2020	3,432	$1,293	$347.39	$324.71 - $367.18
Q3 2020	3,289	$1,167	$309.06	$276.17 - $334.67
Q2 2020	3,324	$1,007	$279.18	$257.36 - $295.59
Q1 2020	3,059	$872	$277.78	$248.54 - $298.00
Q4 2019	3,102	$912	$271.52	$256.90 - $280.77
Q3 2019	3,079	$887	$256.34	$238.19 - $280.38
Q2 2019	2,858	$755	$226.60	$212.14 - $244.81
Q1 2019	2,883	$698	$198.35	$180.94 - $220.09
Q4 2018	2,829	$576	$201.98	$171.58 - $217.57
Q3 2018	2,555	$600	$203.13	$185.65 - $221.43
Q2 2018	2,051	$428	$177.76	$162.55 - $191.42
Q1 2018	1,906	$349	$169.26	$157.50 - $179.09
Q4 2017	2,159	$407	$154.45	$137.67 - $175.03
Q3 2017	1,775	$276	$140.12	$133.57 - $147.68
Q2 2017	1,634	$251	$150.98	$139.41 - $162.71
Q1 2017	1,416	$239	$142.87	$134.91 - $152.51
Q4 2016	1,420	$239	$129.79	$120.95 - $140.39