WBC
COST icon

West Branch Capital’s Costco COST Stock Holding History

West Branch Capital’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 		$4.05M Buy
4,329
+83
+2% +$82.7K 0.94% 31
2026
Q1 		$4.23M Buy
4,246
+320
+8% +$312K 1.13% 25
2025
Q4 		$3.39M Buy
3,926
+117
+3% +$106K 0.87% 27
2025
Q3 		$3.53M Buy
3,809
+223
+6% +$214K 0.93% 27
2025
Q2 		$3.55M Buy
3,586
+154
+4% +$153K 1.05% 25
2025
Q1 		$3.25M Buy
3,432
+433
+14% +$422K 1.08% 25
2024
Q4 		$2.75M Buy
2,999
+15
+0.5% +$13.9K 0.88% 25
2024
Q3 		$2.65M Buy
2,984
+430
+17% +$373K 0.91% 24
2024
Q2 		$2.17M Buy
2,554
+597
+31% +$466K 0.81% 26
2024
Q1 		$1.43M Buy
1,957
+272
+16% +$194K 0.58% 34
2023
Q4 		$1.11M Buy
1,685
+293
+21% +$174K 0.52% 35
2023
Q3 		$786K Buy
1,392
+1
+0.1% +$552 0.41% 44
2023
Q2 		$749K Hold
1,391
– – 0.37% 43
2023
Q1 		$691K Sell
1,391
-11
-0.8% -$5.39K 0.39% 44
2022
Q4 		$640K Buy
1,402
+1
+0.1% +$489 0.4% 44
2022
Q3 		$662K Buy
1,401
+61
+5% +$31.7K 0.41% 50
2022
Q2 		$642K Buy
1,340
+25
+2% +$12.7K 0.37% 49
2022
Q1 		$757K Buy
1,315
+16
+1% +$8.4K 0.36% 50
2021
Q4 		$738K Buy
1,299
+50
+4% +$25.6K 0.31% 50
2021
Q3 		$561K Buy
1,249
+86
+7% +$37.8K 0.27% 54
2021
Q2 		$460K Sell
1,163
-268
-19% -$101K 0.23% 60
2021
Q1 		$505K Sell
1,431
-1,609
-53% -$560K 0.3% 55
2020
Q4 		$1.15M Buy
3,040
+273
+10% +$102K 0.68% 40
2020
Q3 		$982K Buy
2,767
+1,856
+204% +$624K 0.63% 40
2020
Q2 		$276K Sell
911
-246
-21% -$74.8K 0.19% 65
2020
Q1 		$330K Buy
1,157
+9
+0.8% +$2.73K 0.32% 56
2019
Q4 		$337K Buy
1,148
+233
+25% +$69.2K 0.23% 72
2019
Q3 		$264K Buy
915
+1
+0.1% +$281 0.2% 76
2019
Q2 		$242K Buy
+914
New +$228K 0.2% 83

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

West Branch Capital's COST Position: Q2 2026 in Review

West Branch Capital increased its Costco (COST) stake by 2% in Q2 2026, buying an estimated $82.7K and bringing the position to 4,329 shares worth $4.05M. The position accounts for 0.94% of the portfolio, ranked #31.

West Branch Capital first reported a position in COST in Q2 2019 and has held it in 29 quarters since. The position peaked at $4.23M in Q1 2026. 1,998 funds tracked by Wall St. Rank hold COST as of Q2 2026.

  • West Branch Capital held 4,329 shares of Costco worth $4.05M as of Q2 2026.
  • West Branch Capital bought 83 Costco shares in Q2 2026, an estimated $82.7K.
  • Costco made up 0.94% of West Branch Capital's portfolio in Q2 2026, its #31 holding.
  • West Branch Capital first reported a position in Costco in Q2 2019 and has held it in 29 quarters since.
  • West Branch Capital's Costco position peaked at $4.23M in Q1 2026.
  • 1,998 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on West Branch Capital's 13F filing for Q2 2026, filed 10 Jul 2026.