COSTCO WHSL CORP NEW

Ticker: COST CUSIP: 22160K105 Class: COM

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

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

Q4 2025

Shares 2 Value ($000) $2 Avg Close $905.73 Range $844.06 - $962.64

Q3 2025

Shares 2,091 Value ($000) $1,935 Avg Close $956.70 Range $902.01 - $997.89

Q2 2025

Shares 3,140 Value ($000) $3,108 Avg Close $990.72 Range $868.14 - $1064.10

Q1 2025

Shares 10,663 Value ($000) $10,085 Avg Close $970.56 Range $877.95 - $1073.82

Q4 2024

Shares 25,169 Value ($000) $23,062 Avg Close $922.64 Range $861.51 - $1003.02

Q3 2024

Shares 5,772 Value ($000) $5,117 Avg Close $861.91 Range $787.84 - $917.81

Q2 2024

Shares 7,350 Value ($000) $6,247 Avg Close $773.82 Range $690.64 - $867.04

Q4 2023

Shares 40,104 Value ($000) $26,472 Avg Close $573.49 Range $521.47 - $661.25

Q3 2023

Shares 18,408 Value ($000) $10,400 Avg Close $532.21 Range $505.45 - $552.31

Q2 2023

Shares 2,658 Value ($000) $1,431 Avg Close $487.14 Range $459.09 - $519.84

Q1 2023

Shares 30 Value ($000) $15 Avg Close $471.27 Range $429.88 - $509.61

Q4 2022

Shares 60 Value ($000) $27 Avg Close $468.77 Range $430.19 - $520.75

Q3 2022

Shares 60 Value ($000) $28 Avg Close $498.08 Range $444.08 - $541.06

Q1 2022

Shares 35,188 Value ($000) $20,263 Avg Close $500.83 Range $447.15 - $559.84

Q4 2021

Shares 255,078 Value ($000) $144,808 Avg Close $488.10 Range $415.17 - $544.86

Q3 2021

Shares 266,179 Value ($000) $119,608 Avg Close $418.22 Range $374.22 - $447.84

Q2 2021

Shares 277,037 Value ($000) $109,615 Avg Close $359.04 Range $333.36 - $380.48

Q1 2021

Shares 50,237 Value ($000) $17,708 Avg Close $329.77 Range $291.05 - $361.01

Q4 2020

Shares 198,913 Value ($000) $74,946 Avg Close $347.39 Range $324.71 - $367.18

Q3 2020

Shares 255,298 Value ($000) $90,631 Avg Close $309.06 Range $276.17 - $334.67

Q2 2020

Shares 71,127 Value ($000) $21,566 Avg Close $279.18 Range $257.36 - $295.59

Q1 2020

Shares 133,564 Value ($000) $38,083 Avg Close $277.78 Range $248.54 - $298.00

Q4 2019

Shares 38,040 Value ($000) $11,181 Avg Close $271.52 Range $256.90 - $280.77

Q3 2019

Shares 7,380 Value ($000) $2,126 Avg Close $256.34 Range $238.19 - $280.38

Q2 2019

Shares 73 Value ($000) $19 Avg Close $226.60 Range $212.14 - $244.81

Q1 2019

Shares 72,724 Value ($000) $17,609 Avg Close $198.35 Range $180.94 - $220.09

Q4 2018

Shares 231,946 Value ($000) $47,250 Avg Close $201.98 Range $171.58 - $217.57

Q3 2018

Shares 46 Value ($000) $11 Avg Close $203.13 Range $185.65 - $221.43

Q1 2018

Shares 89,967 Value ($000) $16,952 Avg Close $169.26 Range $157.50 - $179.09

Q4 2017

Shares 69,480 Value ($000) $12,932 Avg Close $154.45 Range $137.67 - $175.03

Q2 2017

Shares 93,443 Value ($000) $14,944 Avg Close $150.98 Range $139.41 - $162.71

Q1 2017

Shares 20,446 Value ($000) $3,429 Avg Close $142.87 Range $134.91 - $152.51

Q3 2016

Shares 56,677 Value ($000) $8,644 Avg Close $136.95 Range $124.90 - $143.90

Q2 2016

Shares 65,874 Value ($000) $10,345 Avg Close $128.04 Range $117.26 - $134.37

Q2 2015

Shares 10,586 Value ($000) $1,430 Avg Close $120.23 Range $112.77 - $127.67

Q1 2015

Shares 1,343 Value ($000) $203 Avg Close $120.91 Range $111.40 - $128.73

Q4 2014

Shares 50,667 Value ($000) $7,182 Avg Close $109.42 Range $98.12 - $118.34

Q3 2014

Shares 86,830 Value ($000) $10,882 Avg Close $97.13 Range $92.09 - $102.72

Q2 2014

Shares 7,138 Value ($000) $822 Avg Close $91.81 Range $88.18 - $95.25

Q1 2014

Shares 16,830 Value ($000) $1,880 Avg Close $91.29 Range $87.26 - $95.07

Q4 2013

Shares 26,519 Value ($000) $3,156 Avg Close $95.15 Range $87.55 - $100.50

Q3 2013

Shares 18,269 Value ($000) $2,104 Avg Close $91.64 Range $87.25 - $95.29

Q2 2013

Shares 62,689 Value ($000) $6,932 Avg Close $86.56 Range $81.59 - $91.78

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2	$2	$905.73	$844.06 - $962.64
Q3 2025	2,091	$1,935	$956.70	$902.01 - $997.89
Q2 2025	3,140	$3,108	$990.72	$868.14 - $1064.10
Q1 2025	10,663	$10,085	$970.56	$877.95 - $1073.82
Q4 2024	25,169	$23,062	$922.64	$861.51 - $1003.02
Q3 2024	5,772	$5,117	$861.91	$787.84 - $917.81
Q2 2024	7,350	$6,247	$773.82	$690.64 - $867.04
Q4 2023	40,104	$26,472	$573.49	$521.47 - $661.25
Q3 2023	18,408	$10,400	$532.21	$505.45 - $552.31
Q2 2023	2,658	$1,431	$487.14	$459.09 - $519.84
Q1 2023	30	$15	$471.27	$429.88 - $509.61
Q4 2022	60	$27	$468.77	$430.19 - $520.75
Q3 2022	60	$28	$498.08	$444.08 - $541.06
Q1 2022	35,188	$20,263	$500.83	$447.15 - $559.84
Q4 2021	255,078	$144,808	$488.10	$415.17 - $544.86
Q3 2021	266,179	$119,608	$418.22	$374.22 - $447.84
Q2 2021	277,037	$109,615	$359.04	$333.36 - $380.48
Q1 2021	50,237	$17,708	$329.77	$291.05 - $361.01
Q4 2020	198,913	$74,946	$347.39	$324.71 - $367.18
Q3 2020	255,298	$90,631	$309.06	$276.17 - $334.67
Q2 2020	71,127	$21,566	$279.18	$257.36 - $295.59
Q1 2020	133,564	$38,083	$277.78	$248.54 - $298.00
Q4 2019	38,040	$11,181	$271.52	$256.90 - $280.77
Q3 2019	7,380	$2,126	$256.34	$238.19 - $280.38
Q2 2019	73	$19	$226.60	$212.14 - $244.81
Q1 2019	72,724	$17,609	$198.35	$180.94 - $220.09
Q4 2018	231,946	$47,250	$201.98	$171.58 - $217.57
Q3 2018	46	$11	$203.13	$185.65 - $221.43
Q1 2018	89,967	$16,952	$169.26	$157.50 - $179.09
Q4 2017	69,480	$12,932	$154.45	$137.67 - $175.03
Q2 2017	93,443	$14,944	$150.98	$139.41 - $162.71
Q1 2017	20,446	$3,429	$142.87	$134.91 - $152.51
Q3 2016	56,677	$8,644	$136.95	$124.90 - $143.90
Q2 2016	65,874	$10,345	$128.04	$117.26 - $134.37
Q2 2015	10,586	$1,430	$120.23	$112.77 - $127.67
Q1 2015	1,343	$203	$120.91	$111.40 - $128.73
Q4 2014	50,667	$7,182	$109.42	$98.12 - $118.34
Q3 2014	86,830	$10,882	$97.13	$92.09 - $102.72
Q2 2014	7,138	$822	$91.81	$88.18 - $95.25
Q1 2014	16,830	$1,880	$91.29	$87.26 - $95.07
Q4 2013	26,519	$3,156	$95.15	$87.55 - $100.50
Q3 2013	18,269	$2,104	$91.64	$87.25 - $95.29
Q2 2013	62,689	$6,932	$86.56	$81.59 - $91.78