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Cornerstone Advisory’s Costco COST Stock Holding History

Cornerstone Advisory’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 		$2.87M Sell
3,069
-2
-0.1% -$1.99K 0.24% 70
2026
Q1 		$3.06M Buy
3,071
+107
+4% +$104K 0.29% 59
2025
Q4 		$2.56M Buy
2,964
+653
+28% +$592K 0.24% 65
2025
Q3 		$2.14M Sell
2,311
-74
-3% -$70.9K 0.21% 66
2025
Q2 		$2.36M Buy
2,385
+14
+0.6% +$13.9K 0.25% 61
2025
Q1 		$2.4M Sell
2,371
-59
-2% -$57.5K 0.28% 57
2024
Q4 		$2.6M Buy
2,430
+114
+5% +$106K 0.3% 56
2024
Q3 		$2.05M Buy
2,316
+140
+6% +$122K 0.27% 62
2024
Q2 		$1.85M Buy
2,176
+37
+2% +$28.9K 0.26% 61
2024
Q1 		$1.57M Buy
2,139
+179
+9% +$128K 0.22% 67
2023
Q4 		$1.29M Buy
1,960
+206
+12% +$122K 0.2% 71
2023
Q3 		$991K Buy
1,754
+49
+3% +$27K 0.17% 79
2023
Q2 		$918K Sell
1,705
-84
-5% -$42.5K 0.16% 87
2023
Q1 		$889K Buy
1,789
+475
+36% +$233K 0.16% 91
2022
Q4 		$600K Buy
1,314
+5
+0.4% +$2.44K 0.12% 115
2022
Q3 		$618K Buy
1,309
+9
+0.7% +$4.68K 0.14% 101
2022
Q2 		$624K Sell
1,300
-339
-21% -$172K 0.14% 101
2022
Q1 		$944K Sell
1,639
-94
-5% -$49.3K 0.14% 112
2021
Q4 		$984K Sell
1,733
-456
-21% -$234K 0.14% 111
2021
Q3 		$984K Buy
2,189
+25
+1% +$11K 0.16% 102
2021
Q2 		$856K Buy
2,164
+206
+11% +$77.9K 0.14% 112
2021
Q1 		$690K Buy
1,958
+1
+0.1% +$348 0.13% 127
2020
Q4 		$737K Sell
1,957
-250
-11% -$93.4K 0.15% 115
2020
Q3 		$784K Hold
2,207
– – 0.18% 100
2020
Q2 		$669K Buy
2,207
+348
+19% +$106K 0.17% 95
2020
Q1 		$530K Buy
1,859
+873
+89% +$265K 0.16% 87
2019
Q4 		$290K Buy
986
+20
+2% +$5.94K 0.06% 143
2019
Q3 		$278K Buy
966
+166
+21% +$46.7K 0.06% 135
2019
Q2 		$211K Buy
+800
New +$199K 0.05% 151

Other funds holding COST

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
TWC
TD Waterhouse Canada Toronto, Ontario, Canada $38B AUM 39.14% 1-Year Est. Return

Cornerstone Advisory's COST Position: Q2 2026 in Review

Cornerstone Advisory reduced its Costco (COST) stake by 0.07% in Q2 2026, selling an estimated $1.99K and leaving 3,069 shares worth $2.87M. The position accounts for 0.24% of the portfolio, ranked #70.

Cornerstone Advisory first reported a position in COST in Q2 2019 and has held it in 29 quarters since. The position peaked at $3.06M in Q1 2026. 1,853 funds tracked by Wall St. Rank hold COST as of Q2 2026.

  • Cornerstone Advisory held 3,069 shares of Costco worth $2.87M as of Q2 2026.
  • Cornerstone Advisory sold 2 Costco shares in Q2 2026, an estimated $1.99K.
  • Costco made up 0.24% of Cornerstone Advisory's portfolio in Q2 2026, its #70 holding.
  • Cornerstone Advisory first reported a position in Costco in Q2 2019 and has held it in 29 quarters since.
  • Cornerstone Advisory's Costco position peaked at $3.06M in Q1 2026.
  • 1,853 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on Cornerstone Advisory's 13F filing for Q2 2026, filed 29 Jul 2026.