Christopher Bloomstran’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 | $3.14M | Sell |
3,354
-13
| -0.4% | -$13K | 0.35% | 26 |
|
|
2026
Q1 | $3.35M | Sell |
3,367
-80
| -2% | -$78K | 0.4% | 22 |
|
|
2025
Q4 | $2.97M | Buy |
3,447
+12
| +0.3% | +$10.9K | 0.34% | 21 |
|
|
2025
Q3 | $3.18M | Sell |
3,435
-333
| -9% | -$319K | 0.4% | 21 |
|
|
2025
Q2 | $3.73M | Sell |
3,768
-477
| -11% | -$474K | 0.52% | 20 |
|
|
2025
Q1 | $4.01M | Sell |
4,245
-105
| -2% | -$102K | 0.65% | 19 |
|
|
2024
Q4 | $3.99M | Buy |
4,350
+20
| +0.5% | +$18.6K | 0.71% | 20 |
|
|
2024
Q3 | $3.84M | Hold |
4,330
| – | – | 0.65% | 20 |
|
|
2024
Q2 | $3.68M | Sell |
4,330
-25
| -0.6% | -$19.5K | 0.66% | 22 |
|
|
2024
Q1 | $3.19M | Buy |
4,355
+14
| +0.3% | +$9.99K | 0.58% | 22 |
|
|
2023
Q4 | $2.87M | Buy |
4,341
+357
| +9% | +$212K | 0.6% | 22 |
|
|
2023
Q3 | $2.25M | Sell |
3,984
-188
| -5% | -$104K | 0.54% | 22 |
|
|
2023
Q2 | $2.25M | Sell |
4,172
-97
| -2% | -$49.1K | 0.53% | 22 |
|
|
2023
Q1 | $2.12M | Sell |
4,269
-700
| -14% | -$343K | 0.54% | 22 |
|
|
2022
Q4 | $2.27M | Sell |
4,969
-150
| -3% | -$73.3K | 0.62% | 23 |
|
|
2022
Q3 | $2.42M | Hold |
5,119
| – | – | 0.73% | 23 |
|
|
2022
Q2 | $2.45M | Sell |
5,119
-47
| -0.9% | -$23.8K | 0.73% | 24 |
|
|
2022
Q1 | $2.98M | Sell |
5,166
-334
| -6% | -$175K | 0.76% | 24 |
|
|
2021
Q4 | $3.12M | Sell |
5,500
-7
| -0.1% | -$3.58K | 0.97% | 23 |
|
|
2021
Q3 | $2.48M | Sell |
5,507
-1,243
| -18% | -$546K | 0.8% | 24 |
|
|
2021
Q2 | $2.67M | Sell |
6,750
-10
| -0.1% | -$3.78K | 0.89% | 23 |
|
|
2021
Q1 | $2.38M | Hold |
6,760
| – | – | 0.9% | 22 |
|
|
2020
Q4 | $2.55M | Sell |
6,760
-10,478
| -61% | -$3.91M | 1.11% | 22 |
|
|
2020
Q3 | $6.12M | Sell |
17,238
-1,923
| -10% | -$646K | 3.14% | 11 |
|
|
2020
Q2 | $5.81M | Sell |
19,161
-155
| -0.8% | -$47.2K | 3.29% | 11 |
|
|
2020
Q1 | $5.51M | Sell |
19,316
-3
| -0% | -$910 | 3.47% | 8 |
|
|
2019
Q4 | $5.68M | Sell |
19,319
-300
| -2% | -$89.2K | 3.05% | 9 |
|
|
2019
Q3 | $5.65M | Buy |
19,619
+89
| +0.5% | +$25K | 3.24% | 9 |
|
|
2019
Q2 | $5.16M | Buy |
19,530
+14
| +0.1% | +$3.49K | 3.06% | 8 |
|
|
2019
Q1 | $4.73M | Hold |
19,516
| – | – | 2.9% | 9 |
|
|
2018
Q4 | $3.98M | Sell |
19,516
-300
| -2% | -$67K | 2.55% | 9 |
|
|
2018
Q3 | $4.65M | Hold |
19,816
| – | – | 2.68% | 11 |
|
|
2018
Q2 | $4.14M | Sell |
19,816
-35
| -0.2% | -$6.91K | 2.59% | 14 |
|
|
2018
Q1 | $3.74M | Sell |
19,851
-400
| -2% | -$75.5K | 2.6% | 12 |
|
|
2017
Q4 | $3.77M | Hold |
20,251
| – | – | 2.82% | 10 |
|
|
2017
Q3 | $3.33M | Hold |
20,251
| – | – | 2.46% | 12 |
|
|
2017
Q2 | $3.24M | Hold |
20,251
| – | – | 2.49% | 11 |
|
|
2017
Q1 | $3.4M | Hold |
20,251
| – | – | 2.54% | 13 |
|
|
2016
Q4 | $3.24M | Sell |
20,251
-51
| -0.3% | -$7.79K | 2.4% | 13 |
|
|
2016
Q3 | $3.1M | Hold |
20,302
| – | – | 2.25% | 14 |
|
|
2016
Q2 | $3.19M | Hold |
20,302
| – | – | 2.31% | 13 |
|
|
2016
Q1 | $3.2M | Hold |
20,302
| – | – | 2.29% | 13 |
|
|
2015
Q4 | $3.28M | Hold |
20,302
| – | – | 2.3% | 13 |
|
|
2015
Q3 | $2.94M | Sell |
20,302
-100
| -0.5% | -$14.3K | 2.06% | 15 |
|
|
2015
Q2 | $2.75M | Hold |
20,402
| – | – | 1.84% | 14 |
|
|
2015
Q1 | $3.09M | Hold |
20,402
| – | – | 2.01% | 14 |
|
|
2014
Q4 | $2.89M | Sell |
20,402
-100
| -0.5% | -$13.6K | 1.85% | 14 |
|
|
2014
Q3 | $2.57M | Hold |
20,502
| – | – | 1.58% | 19 |
|
|
2014
Q2 | $2.36M | Hold |
20,502
| – | – | 1.39% | 19 |
|
|
2014
Q1 | $2.29M | Hold |
20,502
| – | – | 1.32% | 20 |
|
|
2013
Q4 | $2.44M | Hold |
20,502
| – | – | 1.39% | 19 |
|
|
2013
Q3 | $2.36M | Hold |
20,502
| – | – | 1.4% | 19 |
|
|
2013
Q2 | $2.27M | Buy |
+20,502
| New | +$2.24M | 1.34% | 19 |
|
Other funds holding COST
Christopher Bloomstran's COST Position: Q2 2026 in Review
Christopher Bloomstran reduced its Costco (COST) stake by 0.39% in Q2 2026, selling an estimated $13K and leaving 3,354 shares worth $3.14M. The position accounts for 0.35% of the portfolio, ranked #26.
Christopher Bloomstran first reported a position in COST in Q2 2013 and has held it in 53 quarters since. The position peaked at $6.12M in Q3 2020. 4,218 funds tracked by Wall St. Rank hold COST as of Q2 2026.
- Christopher Bloomstran held 3,354 shares of Costco worth $3.14M as of Q2 2026.
- Christopher Bloomstran sold 13 Costco shares in Q2 2026, an estimated $13K.
- Costco made up 0.35% of Christopher Bloomstran's portfolio in Q2 2026, its #26 holding.
- Christopher Bloomstran first reported a position in Costco in Q2 2013 and has held it in 53 quarters since.
- Christopher Bloomstran's Costco position peaked at $6.12M in Q3 2020.
- 4,218 funds tracked by Wall St. Rank held Costco as of Q2 2026.
Based on Semper Augustus Investments Group's 13F filing for Q2 2026, filed 14 Aug 2026.