Citadel Advisors’s Costco COST Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$1.41B Sell
1,413,000
-409,100
-22% -$399M 0.23% 65
2025
Q4
$1.57B Sell
1,822,100
-52,400
-3% -$47.5M 0.24% 63
2025
Q3
$1.74B Buy
1,874,500
+668,400
+55% +$641M 0.26% 49
2025
Q2
$1.19B Sell
1,206,100
-93,100
-7% -$92.5M 0.21% 63
2025
Q1
$1.23B Sell
1,299,200
-367,800
-22% -$359M 0.23% 44
2024
Q4
$1.53B Buy
1,667,000
+89,600
+6% +$83.1M 0.26% 37
2024
Q3
$1.4B Buy
1,577,400
+124,100
+9% +$108M 0.27% 41
2024
Q2
$1.24B Sell
1,453,300
-193,000
-12% -$151M 0.25% 40
2024
Q1
$1.21B Buy
1,646,300
+174,000
+12% +$124M 0.23% 44
2023
Q4
$972M Buy
1,472,300
+350,400
+31% +$208M 0.19% 48
2023
Q3
$634M Sell
1,121,900
-137,000
-11% -$75.6M 0.14% 73
2023
Q2
$678M Sell
1,258,900
-79,300
-6% -$40.1M 0.14% 63
2023
Q1
$665M Sell
1,338,200
-192,200
-13% -$94.3M 0.15% 67
2022
Q4
$699M Sell
1,530,400
-623,400
-29% -$305M 0.16% 67
2022
Q3
$1.02B Buy
2,153,800
+237,100
+12% +$123M 0.23% 36
2022
Q2
$919M Buy
1,916,700
+442,500
+30% +$224M 0.24% 36
2022
Q1
$849M Sell
1,474,200
-537,300
-27% -$282M 0.18% 47
2021
Q4
$1.14B Buy
2,011,500
+21,700
+1% +$11.1M 0.23% 38
2021
Q3
$894M Buy
1,989,800
+483,600
+32% +$213M 0.19% 54
2021
Q2
$596M Sell
1,506,200
-494,700
-25% -$187M 0.13% 75
2021
Q1
$705M Buy
2,000,900
+634,200
+46% +$221M 0.17% 55
2020
Q4
$515M Sell
1,366,700
-128,600
-9% -$48M 0.13% 82
2020
Q3
$531M Buy
1,495,300
+707,400
+90% +$238M 0.15% 66
2020
Q2
$239M Buy
787,900
+16,600
+2% +$5.05M 0.09% 136
2020
Q1
$220M Buy
771,300
+197,000
+34% +$59.8M 0.1% 119
2019
Q4
$169M Sell
574,300
-282,000
-33% -$83.8M 0.07% 218
2019
Q3
$247M Buy
856,300
+247,900
+41% +$69.8M 0.12% 116
2019
Q2
$161M Buy
608,400
+27,800
+5% +$6.93M 0.07% 226
2019
Q1
$141M Sell
580,600
-352,800
-38% -$77.2M 0.07% 246
2018
Q4
$190M Buy
933,400
+146,600
+19% +$32.7M 0.1% 127
2018
Q3
$185M Sell
786,800
-60,400
-7% -$13.6M 0.08% 196
2018
Q2
$177M Buy
847,200
+53,900
+7% +$10.6M 0.09% 186
2018
Q1
$149M Buy
793,300
+8,700
+1% +$1.64M 0.08% 195
2017
Q4
$146M Buy
784,600
+111,300
+17% +$19.2M 0.09% 207
2017
Q3
$111M Buy
673,300
+900
+0.1% +$141K 0.08% 220
2017
Q2
$108M Buy
672,400
+311,400
+86% +$53.7M 0.09% 206
2017
Q1
$60.5M Sell
361,000
-317,500
-47% -$53.2M 0.06% 361
2016
Q4
$109M Buy
678,500
+338,400
+100% +$51.7M 0.11% 147
2016
Q3
$51.9M Buy
340,100
+32,600
+11% +$5.27M 0.05% 368
2016
Q2
$48.3M Buy
307,500
+51,800
+20% +$7.84M 0.05% 354
2016
Q1
$40.3M Sell
255,700
-76,700
-23% -$11.6M 0.05% 383
2015
Q4
$53.7M Buy
332,400
+58,700
+21% +$9.28M 0.06% 363
2015
Q3
$39.6M Buy
273,700
+28,000
+11% +$4M 0.04% 536
2015
Q2
$33.2M Buy
245,700
+17,500
+8% +$2.52M 0.03% 693
2015
Q1
$34.6M Buy
228,200
+18,800
+9% +$2.76M 0.03% 663
2014
Q4
$29.7M Sell
209,400
-93,400
-31% -$12.7M 0.03% 733
2014
Q3
$37.9M Buy
302,800
+166,500
+122% +$20.1M 0.04% 550
2014
Q2
$15.7M Sell
136,300
-68,100
-33% -$7.81M 0.02% 966
2014
Q1
$22.8M Buy
204,400
+200
+0.1% +$22.9K 0.03% 753
2013
Q4
$24.3M Sell
204,200
-900
-0.4% -$108K 0.03% 692
2013
Q3
$23.6M Buy
205,100
+55,900
+37% +$6.45M 0.04% 646
2013
Q2
$16.5M Buy
+149,200
New +$16.3M 0.03% 762

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