Mattern Capital Management’s Costco COST Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Shares Change % | Capital Flow | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2025
Q2 | $14M | Buy |
14,118
+35
| +0.2% | +$34.6K | 1.68% | 5 |
|
|
2025
Q1 | $13.3M | Sell |
14,083
-1,066
| -7% | -$1.01M | 1.7% | 4 |
|
|
2024
Q4 | $13.9M | Sell |
15,149
-622
| -4% | -$570K | 1.81% | 3 |
|
|
2024
Q3 | $14M | Sell |
15,771
-163
| -1% | -$145K | 1.76% | 4 |
|
|
2024
Q2 | $13.5M | Sell |
15,934
-235
| -1% | -$200K | 1.87% | 3 |
|
|
2024
Q1 | $11.8M | Sell |
16,169
-685
| -4% | -$502K | 1.61% | 7 |
|
|
2023
Q4 | $11.1M | Buy |
16,854
+105
| +0.6% | +$69.3K | 1.62% | 6 |
|
|
2023
Q3 | $9.46M | Buy |
16,749
+738
| +5% | +$417K | 1.53% | 7 |
|
|
2023
Q2 | $8.62M | Buy |
16,011
+377
| +2% | +$203K | 1.4% | 7 |
|
|
2023
Q1 | $7.77M | Buy |
15,634
+360
| +2% | +$179K | 1.37% | 11 |
|
|
2022
Q4 | $6.97M | Buy |
15,274
+780
| +5% | +$356K | 1.29% | 16 |
|
|
2022
Q3 | $6.85M | Sell |
14,494
-284
| -2% | -$134K | 1.43% | 9 |
|
|
2022
Q2 | $7.08M | Sell |
14,778
-916
| -6% | -$439K | 1.4% | 8 |
|
|
2022
Q1 | $9.04M | Buy |
15,694
+76
| +0.5% | +$43.8K | 1.62% | 4 |
|
|
2021
Q4 | $8.87M | Sell |
15,618
-597
| -4% | -$339K | 1.55% | 4 |
|
|
2021
Q3 | $7.29M | Buy |
16,215
+109
| +0.7% | +$49K | 1.44% | 7 |
|
|
2021
Q2 | $6.37M | Buy |
16,106
+531
| +3% | +$210K | 1.26% | 26 |
|
|
2021
Q1 | $5.49M | Buy |
15,575
+850
| +6% | +$300K | 1.19% | 35 |
|
|
2020
Q4 | $5.55M | Buy |
14,725
+101
| +0.7% | +$38.1K | 1.32% | 24 |
|
|
2020
Q3 | $5.19M | Buy |
14,624
+68
| +0.5% | +$24.1K | 1.36% | 12 |
|
|
2020
Q2 | $4.41M | Buy |
14,556
+21
| +0.1% | +$6.37K | 1.28% | 25 |
|
|
2020
Q1 | $4.14M | Sell |
14,535
-571
| -4% | -$163K | 1.41% | 7 |
|
|
2019
Q4 | $4.44M | Buy |
+15,106
| New | +$4.44M | 1.23% | 23 |
|