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Mount Vernon Associates’s Costco COST Stock Holding History

Mount Vernon Associates’s Portfolio COST Stock Details COST Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$8.59M Sell
9,177
-540
-6% -$538K 5.6% 4
2026
Q1 		$9.68M Sell
9,717
-15
-0.2% -$14.6K 6.84% 3
2025
Q4 		$8.39M Sell
9,732
-5
-0.1% -$4.53K 5.64% 6
2025
Q3 		$9.01M Sell
9,737
-168
-2% -$161K 6.29% 6
2025
Q2 		$9.8M Sell
9,905
-132
-1% -$131K 7.08% 4
2025
Q1 		$9.49M Sell
10,037
-56
-0.6% -$54.6K 7.74% 2
2024
Q4 		$9.25M Sell
10,093
-14
-0.1% -$13K 7.21% 4
2024
Q3 		$8.96M Buy
10,107
+225
+2% +$195K 7.11% 3
2024
Q2 		$8.4M Sell
9,882
-577
-6% -$450K 7.45% 3
2024
Q1 		$7.66M Sell
10,459
-215
-2% -$153K 6.5% 4
2023
Q4 		$7.05M Sell
10,674
-210
-2% -$124K 6.91% 3
2023
Q3 		$6.15M Buy
10,884
+77
+0.7% +$42.5K 6.8% 3
2023
Q2 		$5.82M Sell
10,807
-90
-0.8% -$45.5K 6.18% 4
2023
Q1 		$5.41M Sell
10,897
-270
-2% -$132K 6.4% 3
2022
Q4 		$5.1M Sell
11,167
-105
-0.9% -$51.3K 6.55% 3
2022
Q3 		$5.32M Sell
11,272
-168
-1% -$87.4K 6.93% 4
2022
Q2 		$5.48M Sell
11,440
-40
-0.3% -$20.3K 6.68% 3
2022
Q1 		$6.61M Sell
11,480
-320
-3% -$168K 6.41% 4
2021
Q4 		$6.7M Sell
11,800
-12
-0.1% -$6.15K 5.8% 4
2021
Q3 		$5.31M Buy
11,812
+10
+0.1% +$4.4K 4.87% 6
2021
Q2 		$4.67M Sell
11,802
-185
-2% -$70K 4.28% 6
2021
Q1 		$4.22M Sell
11,987
-165
-1% -$57.4K 4.15% 6
2020
Q4 		$4.58M Sell
12,152
-10
-0.1% -$3.74K 4.82% 5
2020
Q3 		$4.32M Sell
12,162
-65
-0.5% -$21.8K 5.17% 5
2020
Q2 		$3.71M Sell
12,227
-400
-3% -$122K 4.79% 5
2020
Q1 		$3.6M Sell
12,627
-155
-1% -$47K 6.04% 4
2019
Q4 		$3.76M Sell
12,782
-141
-1% -$41.9K 5.12% 4
2019
Q3 		$3.72M Sell
12,923
-83
-0.6% -$23.4K 5.57% 3
2019
Q2 		$3.44M Buy
13,006
+35
+0.3% +$8.72K 5.11% 5
2019
Q1 		$3.14M Sell
12,971
-166
-1% -$36.3K 4.79% 5
2018
Q4 		$2.68M Buy
13,137
+60
+0.5% +$13.4K 4.71% 5
2018
Q3 		$3.07M Sell
13,077
-68
-0.5% -$15.3K 4.53% 4
2018
Q2 		$2.75M Sell
13,145
-410
-3% -$81K 4.28% 5
2018
Q1 		$2.55M Buy
13,555
+10
+0.1% +$1.89K 3.94% 7
2017
Q4 		$2.52M Hold
13,545
– – 3.8% 7
2017
Q3 		$2.23M Hold
13,545
– – 3.68% 6
2017
Q2 		$2.17M Buy
13,545
+540
+4% +$93K 3.88% 4
2017
Q1 		$2.18M Sell
13,005
-50
-0.4% -$8.38K 4.01% 4
2016
Q4 		$2.09M Buy
13,055
+1,050
+9% +$160K 4.11% 3
2016
Q3 		$1.83M Sell
12,005
-100
-0.8% -$16.2K 3.79% 3
2016
Q2 		$1.9M Buy
12,105
+100
+0.8% +$15.1K 4.06% 2
2016
Q1 		$1.89M Sell
12,005
-350
-3% -$53.1K 4.19% 2
2015
Q4 		$2M Buy
12,355
+100
+0.8% +$15.8K 4.37% 2
2015
Q3 		$1.77M Buy
12,255
+50
+0.4% +$7.13K 4.11% 2
2015
Q2 		$1.65M Buy
12,205
+60
+0.5% +$8.63K 3.56% 4
2015
Q1 		$1.84M Buy
12,145
+1,070
+10% +$157K 3.98% 2
2014
Q4 		$1.57M Buy
11,075
+100
+0.9% +$13.6K 3.6% 2
2014
Q3 		$1.38M Buy
10,975
+75
+0.7% +$9.06K 3.42% 2
2014
Q2 		$1.25M Hold
10,900
– – 3.19% 4
2014
Q1 		$1.22M Hold
10,900
– – 3.18% 6
2013
Q4 		$1.3M Buy
10,900
+250
+2% +$29.9K 3.39% 5
2013
Q3 		$1.23M Sell
10,650
-19,000
-64% -$2.19M 3.74% 3
2013
Q2 		$3.28M Buy
+29,650
New +$3.24M 3.54% 6

Other funds holding COST

Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $175B AUM 40.63% 1-Year Est. Return
Assenagon Asset Management
Assenagon Asset Management Senningerberg, Luxembourg $80.2B AUM 50.57% 1-Year Est. Return
Swedbank
Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return
Parnassus Investments
Parnassus Investments San Francisco, California $37.4B AUM 35.42% 1-Year Est. Return
EA
Emerald Advisors Bellevue, Washington $796M AUM 2.51% 1-Year Est. Return
New York State Common Retirement Fund
New York State Common Retirement Fund Albany, New York $79.3B AUM 43.63% 1-Year Est. Return
PTC
Provident Trust Company Waukesha, Wisconsin $4.77B AUM 29.31% 1-Year Est. Return
Robeco Institutional Asset Management
Robeco Institutional Asset Management Rotterdam, Netherlands $81.4B AUM 40.71% 1-Year Est. Return
Commonwealth Equity Services
Commonwealth Equity Services Waltham, Massachusetts $79.5B AUM 27.1% 1-Year Est. Return
New York State Teachers Retirement System (NYSTRS)
New York State Teachers Retirement System (NYSTRS) Albany, New York $54.2B AUM 43.77% 1-Year Est. Return

Mount Vernon Associates's COST Position: Q2 2026 in Review

Mount Vernon Associates reduced its Costco (COST) stake by 5.6% in Q2 2026, selling an estimated $538K and leaving 9,177 shares worth $8.59M. The position accounts for 5.6% of the portfolio, ranked #4.

Mount Vernon Associates first reported a position in COST in Q2 2013 and has held it in 53 quarters since. The position peaked at $9.8M in Q2 2025. 1,962 funds tracked by Wall St. Rank hold COST as of Q2 2026.

  • Mount Vernon Associates held 9,177 shares of Costco worth $8.59M as of Q2 2026.
  • Mount Vernon Associates sold 540 Costco shares in Q2 2026, an estimated $538K.
  • Costco made up 5.6% of Mount Vernon Associates's portfolio in Q2 2026, its #4 holding.
  • Mount Vernon Associates first reported a position in Costco in Q2 2013 and has held it in 53 quarters since.
  • Mount Vernon Associates's Costco position peaked at $9.8M in Q2 2025.
  • 1,962 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on Mount Vernon Associates's 13F filing for Q2 2026, filed 24 Jul 2026.