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
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: Q1 2026 in Review

Simplex Trading sold out of Costco (COST) in Q1 2026, closing a stake of 3,949 shares — an estimated $3.85M sold.

Simplex Trading first reported a position in COST in Q4 2014 and held it in 22 quarters. The position peaked at $14.1M in Q1 2022. 4,238 funds tracked by Wall St. Rank hold COST as of Q1 2026.

  • Simplex Trading reported no remaining Costco position as of Q1 2026 after selling out during the quarter.
  • Simplex Trading sold 3,949 Costco shares in Q1 2026, an estimated $3.85M.
  • Simplex Trading first reported a position in Costco in Q4 2014 and held it in 22 quarters.
  • Simplex Trading's Costco position peaked at $14.1M in Q1 2022.
  • 4,238 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.