State of Wisconsin Investment Board’s Costco COST Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change %
Capital Flow Portfolio Weight Portfolio Position
2025
Q2
$243M Sell
245,415
-18,752
-7% -$18.6M 0.59% 22
2025
Q1
$250M Buy
264,167
+9,506
+4% +$8.99M 0.65% 20
2024
Q4
$233M Sell
254,661
-11,733
-4% -$10.8M 0.6% 21
2024
Q3
$236M Buy
266,394
+11,134
+4% +$9.87M 0.59% 21
2024
Q2
$217M Buy
255,260
+5,481
+2% +$4.66M 0.57% 20
2024
Q1
$183M Buy
249,779
+7,341
+3% +$5.38M 0.48% 33
2023
Q4
$160M Buy
242,438
+6,646
+3% +$4.39M 0.45% 36
2023
Q3
$133M Sell
235,792
-12,952
-5% -$7.32M 0.42% 39
2023
Q2
$134M Sell
248,744
-31,048
-11% -$16.7M 0.38% 42
2023
Q1
$139M Buy
279,792
+54,068
+24% +$26.9M 0.41% 39
2022
Q4
$103M Sell
225,724
-26,572
-11% -$12.1M 0.33% 53
2022
Q3
$119M Sell
252,296
-58,036
-19% -$27.4M 0.38% 43
2022
Q2
$149M Sell
310,332
-10,945
-3% -$5.25M 0.39% 41
2022
Q1
$185M Sell
321,277
-30,260
-9% -$17.4M 0.38% 35
2021
Q4
$200M Sell
351,537
-2,265
-0.6% -$1.29M 0.39% 37
2021
Q3
$159M Buy
353,802
+63,942
+22% +$28.7M 0.33% 48
2021
Q2
$115M Sell
289,860
-37,955
-12% -$15M 0.24% 89
2021
Q1
$116M Buy
327,815
+14,606
+5% +$5.15M 0.25% 95
2020
Q4
$118M Sell
313,209
-30,448
-9% -$11.5M 0.27% 78
2020
Q3
$122M Sell
343,657
-30,082
-8% -$10.7M 0.3% 62
2020
Q2
$113M Buy
373,739
+17,300
+5% +$5.25M 0.31% 63
2020
Q1
$102M Buy
356,439
+30,025
+9% +$8.56M 0.34% 58
2019
Q4
$95.9M Sell
326,414
-25,431
-7% -$7.47M 0.24% 92
2019
Q3
$101M Sell
351,845
-95,720
-21% -$27.6M 0.28% 80
2019
Q2
$118M Sell
447,565
-36,460
-8% -$9.63M 0.33% 60
2019
Q1
$117M Buy
484,025
+28,955
+6% +$7.01M 0.33% 59
2018
Q4
$92.7M Sell
455,070
-35,243
-7% -$7.18M 0.3% 74
2018
Q3
$115M Buy
490,313
+42,275
+9% +$9.93M 0.32% 65
2018
Q2
$93.6M Sell
448,038
-23,382
-5% -$4.89M 0.27% 77
2018
Q1
$88.8M Sell
471,420
-10,395
-2% -$1.96M 0.26% 89
2017
Q4
$89.7M Sell
481,815
-29,913
-6% -$5.57M 0.25% 89
2017
Q3
$84.1M Buy
511,728
+16,066
+3% +$2.64M 0.25% 86
2017
Q2
$79.3M Buy
495,662
+158,480
+47% +$25.3M 0.26% 84
2017
Q1
$56.5M Buy
337,182
+66,141
+24% +$11.1M 0.22% 100
2016
Q4
$43.4M Sell
271,041
-2,908
-1% -$466K 0.19% 120
2016
Q3
$41.8M Sell
273,949
-8,700
-3% -$1.33M 0.16% 129
2016
Q2
$44.4M Sell
282,649
-135,260
-32% -$21.2M 0.18% 122
2016
Q1
$65.9M Buy
417,909
+69,530
+20% +$11M 0.26% 79
2015
Q4
$56.3M Sell
348,379
-40,220
-10% -$6.5M 0.22% 94
2015
Q3
$56.2M Buy
388,599
+80,700
+26% +$11.7M 0.22% 95
2015
Q2
$41.6M Buy
307,899
+104,402
+51% +$14.1M 0.15% 159
2015
Q1
$30.8M Sell
203,497
-224,940
-53% -$34.1M 0.11% 231
2014
Q4
$60.7M Buy
428,437
+223,580
+109% +$31.7M 0.21% 104
2014
Q3
$25.7M Sell
204,857
-192,820
-48% -$24.2M 0.09% 265
2014
Q2
$45.8M Sell
397,677
-100,467
-20% -$11.6M 0.16% 138
2014
Q1
$55.6M Buy
498,144
+269,702
+118% +$30.1M 0.21% 93
2013
Q4
$27.2M Sell
228,442
-47,560
-17% -$5.66M 0.1% 225
2013
Q3
$31.8M Sell
276,002
-166,137
-38% -$19.1M 0.13% 179
2013
Q2
$48.9M Buy
+442,139
New +$48.9M 0.2% 103