Simplex Trading’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 | $10.4M | Buy |
+11,161
| New | +$11.1M | 0.01% | 732 |
|
|
2026
Q1 | – | Sell |
-3,949
| Closed | -$3.85M | – | 9221 |
|
|
2025
Q4 | $3.41M | Buy |
+3,949
| New | +$3.58M | ﹤0.01% | 1567 |
|
|
2025
Q1 | – | Sell |
-8,469
| Closed | -$8.26M | – | 8653 |
|
|
2024
Q4 | $7.76M | Buy |
8,469
+6,209
| +275% | +$5.76M | ﹤0.01% | 1185 |
|
|
2024
Q3 | $2M | Buy |
+2,260
| New | +$1.96M | ﹤0.01% | 2273 |
|
|
2024
Q2 | – | Sell |
-5,589
| Closed | -$4.36M | – | 8916 |
|
|
2024
Q1 | $4.09M | Buy |
+5,589
| New | +$3.99M | ﹤0.01% | 1759 |
|
|
2023
Q3 | – | Sell |
-163
| Closed | -$90K | – | 8798 |
|
|
2023
Q2 | $87K | Buy |
+163
| New | +$82.5K | ﹤0.01% | 5247 |
|
|
2022
Q4 | – | Sell |
-16,879
| Closed | -$8.25M | – | 9342 |
|
|
2022
Q3 | $7.97M | Buy |
+16,879
| New | +$8.78M | 0.01% | 906 |
|
|
2022
Q2 | – | Sell |
-24,538
| Closed | -$12.4M | – | 10088 |
|
|
2022
Q1 | $14.1M | Buy |
24,538
+8,806
| +56% | +$4.62M | 0.01% | 671 |
|
|
2021
Q4 | $8.93M | Buy |
15,732
+7,793
| +98% | +$3.99M | 0.01% | 840 |
|
|
2021
Q3 | $3.13M | Buy |
7,939
+1,816
| +30% | +$798K | ﹤0.01% | 1631 |
|
|
2021
Q2 | $2.42M | Sell |
6,123
-15,278
| -71% | -$5.78M | ﹤0.01% | 1917 |
|
|
2021
Q1 | $0 | Buy |
+21,401
| New | +$7.45M | ﹤0.01% | 8971 |
|
|
2020
Q3 | – | Sell |
-14,128
| Closed | -$4.75M | – | 7860 |
|
|
2020
Q2 | $4.28M | Buy |
+14,128
| New | +$4.3M | 0.01% | 946 |
|
|
2019
Q1 | – | Sell |
-200
| Closed | -$43.7K | – | 7207 |
|
|
2018
Q4 | $40K | Sell |
200
-16,129
| -99% | -$3.6M | ﹤0.01% | 4745 |
|
|
2018
Q3 | $3.83M | Buy |
16,329
+6,868
| +73% | +$1.55M | 0.01% | 778 |
|
|
2018
Q2 | $1.98M | Buy |
+9,461
| New | +$1.87M | 0.01% | 1156 |
|
|
2018
Q1 | – | Sell |
-3,647
| Closed | -$688K | – | 6236 |
|
|
2017
Q4 | $678K | Buy |
+3,647
| New | +$630K | 0.03% | 557 |
|
|
2017
Q3 | – | Sell |
-44,997
| Closed | -$7.07M | – | 5974 |
|
|
2017
Q2 | $7.2M | Buy |
44,997
+16,469
| +58% | +$2.84M | 0.31% | 53 |
|
|
2017
Q1 | $4.78M | Sell |
28,528
-23,449
| -45% | -$3.93M | 0.21% | 88 |
|
|
2016
Q4 | $8.32M | Buy |
+51,977
| New | +$7.93M | 0.5% | 28 |
|
|
2016
Q1 | – | Sell |
-2,940
| Closed | -$446K | – | 5654 |
|
|
2015
Q4 | $474K | Buy |
+2,940
| New | +$465K | 0.04% | 456 |
|
|
2015
Q3 | – | Sell |
-782
| Closed | -$112K | – | 5583 |
|
|
2015
Q2 | $105K | Buy |
+782
| New | +$112K | 0.01% | 1179 |
|
|
2015
Q1 | – | Sell |
-11,589
| Closed | -$1.7M | – | 5018 |
|
|
2014
Q4 | $1.64M | Buy |
+11,589
| New | +$1.58M | 0.2% | 91 |
|
Other funds holding COST
Simplex Trading's COST Position: Q2 2026 in Review
Simplex Trading opened a new position in Costco (COST) in Q2 2026: 11,161 shares worth $10.4M. The stake represents 0.01% of the portfolio and ranks #732 among its holdings. This is a return to the name: Simplex Trading previously reported a position in COST as recently as Q4 2025.
Simplex Trading first reported a position in COST in Q4 2014 and has held it in 23 quarters since. The position peaked at $14.1M in Q1 2022. 4,258 funds tracked by Wall St. Rank hold COST as of Q2 2026.
- Simplex Trading held 11,161 shares of Costco worth $10.4M as of Q2 2026.
- Costco was a new Simplex Trading position in Q2 2026.
- Costco made up 0.01% of Simplex Trading's portfolio in Q2 2026, its #732 holding.
- Simplex Trading first reported a position in Costco in Q4 2014 and has held it in 23 quarters since.
- Simplex Trading's Costco position peaked at $14.1M in Q1 2022.
- 4,258 funds tracked by Wall St. Rank held Costco as of Q2 2026.
Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.