COSTCO WHSL CORP NEW

Ticker: COST CUSIP: 22160K105 Class: COM

STATE OF WISCONSIN INVESTMENT BOARD's Holding History (CIK: 0000854157)

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

Q4 2025

Shares 232,243 Value ($000) $200,272 Avg Close $905.73 Range $844.06 - $962.64

Q3 2025

Shares 236,886 Value ($000) $219,269 Avg Close $956.70 Range $902.01 - $997.89

Q2 2025

Shares 245,415 Value ($000) $242,946 Avg Close $990.72 Range $868.14 - $1064.10

Q1 2025

Shares 264,167 Value ($000) $249,844 Avg Close $970.56 Range $877.95 - $1073.82

Q4 2024

Shares 254,661 Value ($000) $233,338 Avg Close $922.64 Range $861.51 - $1003.02

Q3 2024

Shares 266,394 Value ($000) $236,164 Avg Close $861.91 Range $787.84 - $917.81

Q2 2024

Shares 255,260 Value ($000) $216,968 Avg Close $773.82 Range $690.64 - $867.04

Q1 2024

Shares 249,779 Value ($000) $182,996 Avg Close $706.75 Range $633.49 - $779.59

Q4 2023

Shares 242,438 Value ($000) $160,028 Avg Close $573.49 Range $521.47 - $661.25

Q3 2023

Shares 235,792 Value ($000) $133,213 Avg Close $532.21 Range $505.45 - $552.31

Q2 2023

Shares 248,744 Value ($000) $133,919 Avg Close $487.14 Range $459.09 - $519.84

Q1 2023

Shares 279,792 Value ($000) $139,020 Avg Close $471.27 Range $429.88 - $509.61

Q4 2022

Shares 225,724 Value ($000) $103,043 Avg Close $468.77 Range $430.19 - $520.75

Q3 2022

Shares 252,296 Value ($000) $119,152 Avg Close $498.08 Range $444.08 - $541.06

Q2 2022

Shares 310,332 Value ($000) $148,736 Avg Close $484.91 Range $388.78 - $584.62

Q1 2022

Shares 321,277 Value ($000) $185,007 Avg Close $500.83 Range $447.15 - $559.84

Q4 2021

Shares 351,537 Value ($000) $199,568 Avg Close $488.10 Range $415.17 - $544.86

Q3 2021

Shares 353,802 Value ($000) $158,981 Avg Close $418.22 Range $374.22 - $447.84

Q2 2021

Shares 289,860 Value ($000) $114,689 Avg Close $359.04 Range $333.36 - $380.48

Q1 2021

Shares 327,815 Value ($000) $115,548 Avg Close $329.77 Range $291.05 - $361.01

Q4 2020

Shares 313,209 Value ($000) $118,011 Avg Close $347.39 Range $324.71 - $367.18

Q3 2020

Shares 343,657 Value ($000) $121,998 Avg Close $309.06 Range $276.17 - $334.67

Q2 2020

Shares 373,739 Value ($000) $113,321 Avg Close $279.18 Range $257.36 - $295.59

Q1 2020

Shares 356,439 Value ($000) $101,631 Avg Close $277.78 Range $248.54 - $298.00

Q4 2019

Shares 326,414 Value ($000) $95,940 Avg Close $271.52 Range $256.90 - $280.77

Q3 2019

Shares 351,845 Value ($000) $101,370 Avg Close $256.34 Range $238.19 - $280.38

Q2 2019

Shares 447,565 Value ($000) $118,274 Avg Close $226.60 Range $212.14 - $244.81

Q1 2019

Shares 484,025 Value ($000) $117,202 Avg Close $198.35 Range $180.94 - $220.09

Q4 2018

Shares 455,070 Value ($000) $92,702 Avg Close $201.98 Range $171.58 - $217.57

Q3 2018

Shares 490,313 Value ($000) $115,165 Avg Close $203.13 Range $185.65 - $221.43

Q2 2018

Shares 448,038 Value ($000) $93,631 Avg Close $177.76 Range $162.55 - $191.42

Q1 2018

Shares 471,420 Value ($000) $88,830 Avg Close $169.26 Range $157.50 - $179.09

Q4 2017

Shares 481,815 Value ($000) $89,675 Avg Close $154.45 Range $137.67 - $175.03

Q3 2017

Shares 511,728 Value ($000) $84,072 Avg Close $140.12 Range $133.57 - $147.68

Q2 2017

Shares 495,662 Value ($000) $79,271 Avg Close $150.98 Range $139.41 - $162.71

Q1 2017

Shares 337,182 Value ($000) $56,542 Avg Close $142.87 Range $134.91 - $152.51

Q4 2016

Shares 271,041 Value ($000) $43,396 Avg Close $129.79 Range $120.95 - $140.39

Q3 2016

Shares 273,949 Value ($000) $41,780 Avg Close $136.95 Range $124.90 - $143.90

Q2 2016

Shares 282,649 Value ($000) $44,387 Avg Close $128.04 Range $117.26 - $134.37

Q1 2016

Shares 417,909 Value ($000) $65,854 Avg Close $127.74 Range $119.17 - $135.67

Q4 2015

Shares 348,379 Value ($000) $56,263 Avg Close $132.84 Range $119.34 - $142.82

Q3 2015

Shares 388,599 Value ($000) $56,180 Avg Close $119.60 Range $98.22 - $123.53

Q2 2015

Shares 307,899 Value ($000) $41,585 Avg Close $120.23 Range $112.77 - $127.67

Q1 2015

Shares 203,497 Value ($000) $30,829 Avg Close $120.91 Range $111.40 - $128.73

Q4 2014

Shares 428,437 Value ($000) $60,731 Avg Close $109.42 Range $98.12 - $118.34

Q3 2014

Shares 204,857 Value ($000) $25,673 Avg Close $97.13 Range $92.09 - $102.72

Q2 2014

Shares 397,677 Value ($000) $45,796 Avg Close $91.81 Range $88.18 - $95.25

Q1 2014

Shares 498,144 Value ($000) $55,633 Avg Close $91.29 Range $87.26 - $95.07

Q4 2013

Shares 228,442 Value ($000) $27,187 Avg Close $95.15 Range $87.55 - $100.50

Q3 2013

Shares 276,002 Value ($000) $31,773 Avg Close $91.64 Range $87.25 - $95.29

Q2 2013

Shares 442,139 Value ($000) $48,887 Avg Close $86.56 Range $81.59 - $91.78

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	232,243	$200,272	$905.73	$844.06 - $962.64
Q3 2025	236,886	$219,269	$956.70	$902.01 - $997.89
Q2 2025	245,415	$242,946	$990.72	$868.14 - $1064.10
Q1 2025	264,167	$249,844	$970.56	$877.95 - $1073.82
Q4 2024	254,661	$233,338	$922.64	$861.51 - $1003.02
Q3 2024	266,394	$236,164	$861.91	$787.84 - $917.81
Q2 2024	255,260	$216,968	$773.82	$690.64 - $867.04
Q1 2024	249,779	$182,996	$706.75	$633.49 - $779.59
Q4 2023	242,438	$160,028	$573.49	$521.47 - $661.25
Q3 2023	235,792	$133,213	$532.21	$505.45 - $552.31
Q2 2023	248,744	$133,919	$487.14	$459.09 - $519.84
Q1 2023	279,792	$139,020	$471.27	$429.88 - $509.61
Q4 2022	225,724	$103,043	$468.77	$430.19 - $520.75
Q3 2022	252,296	$119,152	$498.08	$444.08 - $541.06
Q2 2022	310,332	$148,736	$484.91	$388.78 - $584.62
Q1 2022	321,277	$185,007	$500.83	$447.15 - $559.84
Q4 2021	351,537	$199,568	$488.10	$415.17 - $544.86
Q3 2021	353,802	$158,981	$418.22	$374.22 - $447.84
Q2 2021	289,860	$114,689	$359.04	$333.36 - $380.48
Q1 2021	327,815	$115,548	$329.77	$291.05 - $361.01
Q4 2020	313,209	$118,011	$347.39	$324.71 - $367.18
Q3 2020	343,657	$121,998	$309.06	$276.17 - $334.67
Q2 2020	373,739	$113,321	$279.18	$257.36 - $295.59
Q1 2020	356,439	$101,631	$277.78	$248.54 - $298.00
Q4 2019	326,414	$95,940	$271.52	$256.90 - $280.77
Q3 2019	351,845	$101,370	$256.34	$238.19 - $280.38
Q2 2019	447,565	$118,274	$226.60	$212.14 - $244.81
Q1 2019	484,025	$117,202	$198.35	$180.94 - $220.09
Q4 2018	455,070	$92,702	$201.98	$171.58 - $217.57
Q3 2018	490,313	$115,165	$203.13	$185.65 - $221.43
Q2 2018	448,038	$93,631	$177.76	$162.55 - $191.42
Q1 2018	471,420	$88,830	$169.26	$157.50 - $179.09
Q4 2017	481,815	$89,675	$154.45	$137.67 - $175.03
Q3 2017	511,728	$84,072	$140.12	$133.57 - $147.68
Q2 2017	495,662	$79,271	$150.98	$139.41 - $162.71
Q1 2017	337,182	$56,542	$142.87	$134.91 - $152.51
Q4 2016	271,041	$43,396	$129.79	$120.95 - $140.39
Q3 2016	273,949	$41,780	$136.95	$124.90 - $143.90
Q2 2016	282,649	$44,387	$128.04	$117.26 - $134.37
Q1 2016	417,909	$65,854	$127.74	$119.17 - $135.67
Q4 2015	348,379	$56,263	$132.84	$119.34 - $142.82
Q3 2015	388,599	$56,180	$119.60	$98.22 - $123.53
Q2 2015	307,899	$41,585	$120.23	$112.77 - $127.67
Q1 2015	203,497	$30,829	$120.91	$111.40 - $128.73
Q4 2014	428,437	$60,731	$109.42	$98.12 - $118.34
Q3 2014	204,857	$25,673	$97.13	$92.09 - $102.72
Q2 2014	397,677	$45,796	$91.81	$88.18 - $95.25
Q1 2014	498,144	$55,633	$91.29	$87.26 - $95.07
Q4 2013	228,442	$27,187	$95.15	$87.55 - $100.50
Q3 2013	276,002	$31,773	$91.64	$87.25 - $95.29
Q2 2013	442,139	$48,887	$86.56	$81.59 - $91.78