Marshall Wace’s Costco COST Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $1.1B | Buy |
1,174,466
+910,725
| +345% | +$907M | 0.87% | 9 |
|
|
2026
Q1 | $263M | Sell |
263,741
-248,289
| -48% | -$242M | 0.26% | 53 |
|
|
2025
Q4 | $442M | Buy |
512,030
+420,985
| +462% | +$381M | 0.4% | 33 |
|
|
2025
Q3 | $84.3M | Sell |
91,045
-232,446
| -72% | -$223M | 0.09% | 205 |
|
|
2025
Q2 | $320M | Sell |
323,491
-222,556
| -41% | -$221M | 0.36% | 38 |
|
|
2025
Q1 | $516M | Buy |
546,047
+442,970
| +430% | +$432M | 0.66% | 16 |
|
|
2024
Q4 | $94.4M | Buy |
103,077
+101,099
| +5,111% | +$93.8M | 0.11% | 160 |
|
|
2024
Q3 | $1.75M | Sell |
1,978
-570,384
| -100% | -$495M | ﹤0.01% | 1419 |
|
|
2024
Q2 | $487M | Sell |
572,362
-84,847
| -13% | -$66.2M | 0.65% | 16 |
|
|
2024
Q1 | $481M | Buy |
657,209
+201,970
| +44% | +$144M | 0.73% | 12 |
|
|
2023
Q4 | $300M | Sell |
455,239
-130,568
| -22% | -$77.4M | 0.51% | 28 |
|
|
2023
Q3 | $331M | Buy |
585,807
+512,787
| +702% | +$283M | 0.67% | 20 |
|
|
2023
Q2 | $39.3M | Buy |
73,020
+72,072
| +7,603% | +$36.5M | 0.08% | 276 |
|
|
2023
Q1 | $471K | Sell |
948
-136,023
| -99% | -$66.7M | ﹤0.01% | 2133 |
|
|
2022
Q4 | $62.5M | Sell |
136,971
-227,374
| -62% | -$111M | 0.14% | 157 |
|
|
2022
Q3 | $172M | Buy |
364,345
+226,239
| +164% | +$118M | 0.38% | 36 |
|
|
2022
Q2 | $66.2M | Sell |
138,106
-263,635
| -66% | -$134M | 0.14% | 150 |
|
|
2022
Q1 | $231M | Buy |
401,741
+385,141
| +2,320% | +$202M | 0.44% | 29 |
|
|
2021
Q4 | $9.42M | Sell |
16,600
-5,806
| -26% | -$2.97M | 0.02% | 906 |
|
|
2021
Q3 | $10.1M | Buy |
22,406
+5,189
| +30% | +$2.28M | 0.04% | 548 |
|
|
2021
Q2 | $6.81M | Sell |
17,217
-37,185
| -68% | -$14.1M | 0.03% | 672 |
|
|
2021
Q1 | $19.2M | Sell |
54,402
-12,918
| -19% | -$4.5M | 0.09% | 233 |
|
|
2020
Q4 | $25.4M | Sell |
67,320
-56,693
| -46% | -$21.2M | 0.14% | 155 |
|
|
2020
Q3 | $44M | Buy |
124,013
+108,377
| +693% | +$36.4M | 0.28% | 79 |
|
|
2020
Q2 | $4.74M | Sell |
15,636
-66,448
| -81% | -$20.2M | 0.03% | 488 |
|
|
2020
Q1 | $23.4M | Sell |
82,084
-187,100
| -70% | -$56.8M | 0.23% | 97 |
|
|
2019
Q4 | $79.1M | Buy |
269,184
+64,794
| +32% | +$19.3M | 0.54% | 30 |
|
|
2019
Q3 | $58.9M | Buy |
204,390
+183,442
| +876% | +$51.6M | 0.46% | 37 |
|
|
2019
Q2 | $5.54M | Buy |
20,948
+3,021
| +17% | +$753K | 0.05% | 443 |
|
|
2019
Q1 | $4.34M | Buy |
17,927
+15,733
| +717% | +$3.44M | 0.04% | 510 |
|
|
2018
Q4 | $447K | Buy |
+2,194
| New | +$490K | ﹤0.01% | 1147 |
|
|
2018
Q3 | – | Sell |
-250,388
| Closed | -$52.3M | – | 1151 |
|
|
2018
Q2 | $52.3M | Buy |
250,388
+235,505
| +1,582% | +$46.5M | 0.78% | 25 |
|
|
2018
Q1 | $2.8M | Buy |
+14,883
| New | +$2.81M | 0.12% | 154 |
|
|
2017
Q1 | – | Sell |
-220,295
| Closed | -$35.3M | – | 386 |
|
|
2016
Q4 | $35.3M | Buy |
220,295
+48,151
| +28% | +$7.35M | 0.23% | 120 |
|
|
2016
Q3 | $26.3M | Buy |
172,144
+169,718
| +6,996% | +$27.4M | 0.19% | 134 |
|
|
2016
Q2 | $381K | Sell |
2,426
-3,080
| -56% | -$466K | ﹤0.01% | 870 |
|
|
2016
Q1 | $868K | Sell |
5,506
-6,785
| -55% | -$1.03M | 0.01% | 744 |
|
|
2015
Q4 | $1.99M | Buy |
+12,291
| New | +$1.94M | 0.02% | 565 |
|
|
2014
Q3 | – | Sell |
-45,836
| Closed | -$5.28M | – | 901 |
|
|
2014
Q2 | $5.28M | Sell |
45,836
-10,598
| -19% | -$1.22M | 0.08% | 259 |
|
|
2014
Q1 | $6.3M | Buy |
+56,434
| New | +$6.46M | 0.11% | 213 |
|
Other funds holding COST
Marshall Wace's COST Position: Q2 2026 in Review
Marshall Wace increased its Costco (COST) stake by 345% in Q2 2026, buying an estimated $907M and bringing the position to 1,174,466 shares worth $1.1B. The position accounts for 0.87% of the portfolio, ranked #9.
Marshall Wace first reported a position in COST in Q1 2014 and has held it in 40 quarters since. 4,210 funds tracked by Wall St. Rank hold COST as of Q2 2026.
- Marshall Wace held 1,174,466 shares of Costco worth $1.1B as of Q2 2026.
- Marshall Wace bought 910,725 Costco shares in Q2 2026, an estimated $907M.
- Costco made up 0.87% of Marshall Wace's portfolio in Q2 2026, its #9 holding.
- Marshall Wace first reported a position in Costco in Q1 2014 and has held it in 40 quarters since.
- 4,210 funds tracked by Wall St. Rank held Costco as of Q2 2026.
Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.