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Berkshire Bank’s Costco COST Stock Holding History

Berkshire Bank’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 		$901K Buy
963
+57
+6% +$56.8K 0.17% 81
2026
Q1 		$903K Sell
906
-21
-2% -$20.5K 0.19% 77
2025
Q4 		$799K Sell
927
-471
-34% -$427K 0.16% 81
2025
Q3 		$1.29M Sell
1,398
-37
-3% -$35.5K 0.28% 66
2025
Q2 		$1.42M Buy
1,435
+24
+2% +$23.9K 0.32% 62
2025
Q1 		$1.33M Buy
1,411
+162
+13% +$158K 0.33% 63
2024
Q4 		$1.14M Sell
1,249
-70
-5% -$65K 0.27% 68
2024
Q3 		$1.17M Sell
1,319
-30
-2% -$26K 0.27% 64
2024
Q2 		$1.15M Sell
1,349
-98
-7% -$76.5K 0.29% 63
2024
Q1 		$1.06M Buy
1,447
+156
+12% +$111K 0.26% 65
2023
Q4 		$852K Sell
1,291
-20
-2% -$11.9K 0.23% 76
2023
Q3 		$741K Buy
1,311
+103
+9% +$56.9K 0.21% 76
2023
Q2 		$650K Sell
1,208
-4
-0.3% -$2.02K 0.18% 82
2023
Q1 		$602K Sell
1,212
-123
-9% -$60.3K 0.18% 85
2022
Q4 		$609K Buy
1,335
+7
+0.5% +$3.42K 0.19% 81
2022
Q3 		$627K Buy
1,328
+283
+27% +$147K 0.19% 80
2022
Q2 		$501K Buy
1,045
+86
+9% +$43.6K 0.15% 88
2022
Q1 		$552K Buy
959
+305
+47% +$160K 0.13% 89
2021
Q4 		$371K Buy
654
+176
+37% +$90.1K 0.08% 109
2021
Q3 		$215K Buy
+478
New +$210K 0.05% 121

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
Aberdeen Group
Aberdeen Group Edinburgh, United Kingdom $71.2B AUM 41.74% 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

Berkshire Bank's COST Position: Q2 2026 in Review

Berkshire Bank increased its Costco (COST) stake by 6.3% in Q2 2026, buying an estimated $56.8K and bringing the position to 963 shares worth $901K. The position accounts for 0.17% of the portfolio, ranked #81.

Berkshire Bank first reported a position in COST in Q3 2021 and has held it in 20 quarters since. The position peaked at $1.42M in Q2 2025. 2,087 funds tracked by Wall St. Rank hold COST as of Q2 2026.

  • Berkshire Bank held 963 shares of Costco worth $901K as of Q2 2026.
  • Berkshire Bank bought 57 Costco shares in Q2 2026, an estimated $56.8K.
  • Costco made up 0.17% of Berkshire Bank's portfolio in Q2 2026, its #81 holding.
  • Berkshire Bank first reported a position in Costco in Q3 2021 and has held it in 20 quarters since.
  • Berkshire Bank's Costco position peaked at $1.42M in Q2 2025.
  • 2,087 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on Berkshire Bank's 13F filing for Q2 2026, filed 8 Jul 2026.