COSTCO WHSL CORP NEW

Ticker: COST CUSIP: 22160K105 Class: COM

Emerald Advisors, LLC's Holding History (CIK: 0001802611)

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

Q4 2025

Shares 639,762 Value ($000) $551,693 Avg Close $905.73 Range $844.06 - $962.64

Q3 2025

Shares 623,564 Value ($000) $577,190 Avg Close $956.70 Range $902.01 - $997.89

Q2 2025

Shares 628,970 Value ($000) $622,643 Avg Close $990.72 Range $868.14 - $1064.10

Q1 2025

Shares 647,523 Value ($000) $612,415 Avg Close $970.56 Range $877.95 - $1073.82

Q4 2024

Shares 643,510 Value ($000) $589,629 Avg Close $922.64 Range $861.51 - $1003.02

Q3 2024

Shares 626,951 Value ($000) $557,711 Avg Close $861.91 Range $787.84 - $917.81

Q2 2024

Shares 632,463 Value ($000) $537,587 Avg Close $773.82 Range $690.64 - $867.04

Q1 2024

Shares 603,350 Value ($000) $442,032 Avg Close $706.75 Range $633.49 - $779.59

Q4 2023

Shares 633,667 Value ($000) $418,271 Avg Close $573.49 Range $521.47 - $661.25

Q3 2023

Shares 597,421 Value ($000) $337,519 Avg Close $532.21 Range $505.45 - $552.31

Q2 2023

Shares 594,776 Value ($000) $320,216 Avg Close $487.14 Range $459.09 - $519.84

Q1 2023

Shares 605,283 Value ($000) $300,747 Avg Close $471.27 Range $429.88 - $509.61

Q4 2022

Shares 618,553 Value ($000) $282,369 Avg Close $468.77 Range $430.19 - $520.75

Q3 2022

Shares 568,226 Value ($000) $268,356 Avg Close $498.08 Range $444.08 - $541.06

Q2 2022

Shares 568,373 Value ($000) $272,410 Avg Close $484.91 Range $388.78 - $584.62

Q1 2022

Shares 568,158 Value ($000) $327,174 Avg Close $500.83 Range $447.15 - $559.84

Q4 2021

Shares 558,619 Value ($000) $317,128 Avg Close $488.10 Range $415.17 - $544.86

Q3 2021

Shares 537,171 Value ($000) $241,378 Avg Close $418.22 Range $374.22 - $447.84

Q2 2021

Shares 549,142 Value ($000) $217,279 Avg Close $359.04 Range $333.36 - $380.48

Q1 2021

Shares 544,848 Value ($000) $192,048 Avg Close $329.77 Range $291.05 - $361.01

Q4 2020

Shares 550,800 Value ($000) $207,530 Avg Close $347.39 Range $324.71 - $367.18

Q3 2020

Shares 503,981 Value ($000) $178,913 Avg Close $309.06 Range $276.17 - $334.67

Q2 2020

Shares 503,713 Value ($000) $152,731 Avg Close $279.18 Range $257.36 - $295.59

Q1 2020

Shares 504,620 Value ($000) $154,383 Avg Close $277.78 Range $248.54 - $298.00

Q4 2019

Shares 176,973 Value ($000) $54,764 Avg Close $271.52 Range $256.90 - $280.77

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	639,762	$551,693	$905.73	$844.06 - $962.64
Q3 2025	623,564	$577,190	$956.70	$902.01 - $997.89
Q2 2025	628,970	$622,643	$990.72	$868.14 - $1064.10
Q1 2025	647,523	$612,415	$970.56	$877.95 - $1073.82
Q4 2024	643,510	$589,629	$922.64	$861.51 - $1003.02
Q3 2024	626,951	$557,711	$861.91	$787.84 - $917.81
Q2 2024	632,463	$537,587	$773.82	$690.64 - $867.04
Q1 2024	603,350	$442,032	$706.75	$633.49 - $779.59
Q4 2023	633,667	$418,271	$573.49	$521.47 - $661.25
Q3 2023	597,421	$337,519	$532.21	$505.45 - $552.31
Q2 2023	594,776	$320,216	$487.14	$459.09 - $519.84
Q1 2023	605,283	$300,747	$471.27	$429.88 - $509.61
Q4 2022	618,553	$282,369	$468.77	$430.19 - $520.75
Q3 2022	568,226	$268,356	$498.08	$444.08 - $541.06
Q2 2022	568,373	$272,410	$484.91	$388.78 - $584.62
Q1 2022	568,158	$327,174	$500.83	$447.15 - $559.84
Q4 2021	558,619	$317,128	$488.10	$415.17 - $544.86
Q3 2021	537,171	$241,378	$418.22	$374.22 - $447.84
Q2 2021	549,142	$217,279	$359.04	$333.36 - $380.48
Q1 2021	544,848	$192,048	$329.77	$291.05 - $361.01
Q4 2020	550,800	$207,530	$347.39	$324.71 - $367.18
Q3 2020	503,981	$178,913	$309.06	$276.17 - $334.67
Q2 2020	503,713	$152,731	$279.18	$257.36 - $295.59
Q1 2020	504,620	$154,383	$277.78	$248.54 - $298.00
Q4 2019	176,973	$54,764	$271.52	$256.90 - $280.77