Sumitomo Mitsui Trust Group
COST icon

Sumitomo Mitsui Trust Group’s Costco COST Stock Holding History

Sumitomo Mitsui Trust Group’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
Q1 		$1.05B Sell
1,049,993
-34,432
-3% -$33.6M 0.68% 22
2025
Q4 		$935M Sell
1,084,425
-21,894
-2% -$19.8M 0.55% 25
2025
Q3 		$1.02B Buy
1,106,319
+9,636
+0.9% +$9.24M 0.59% 23
2025
Q2 		$1.09B Buy
1,096,683
+22,096
+2% +$22M 0.68% 19
2025
Q1 		$1.02B Buy
1,074,587
+17,654
+2% +$17.2M 0.72% 20
2024
Q4 		$968M Buy
1,056,933
+660
+0.1% +$612K 0.65% 21
2024
Q3 		$936M Buy
1,056,273
+22,585
+2% +$19.6M 0.65% 20
2024
Q2 		$879M Sell
1,033,688
-123,662
-11% -$96.5M 0.65% 17
2024
Q1 		$848M Buy
1,157,350
+9,195
+0.8% +$6.56M 0.58% 24
2023
Q4 		$758M Sell
1,148,155
-7,061
-0.6% -$4.18M 0.56% 25
2023
Q3 		$653M Sell
1,155,216
-18,377
-2% -$10.1M 0.54% 29
2023
Q2 		$632M Sell
1,173,593
-177,192
-13% -$89.7M 0.49% 32
2023
Q1 		$671M Buy
1,350,785
+126,163
+10% +$61.9M 0.5% 32
2022
Q4 		$559M Sell
1,224,622
-11,780
-1% -$5.76M 0.44% 39
2022
Q3 		$584M Sell
1,236,402
-2,014
-0.2% -$1.05M 0.48% 32
2022
Q2 		$594M Buy
1,238,416
+81,508
+7% +$41.3M 0.46% 36
2022
Q1 		$666M Sell
1,156,908
-9,168
-0.8% -$4.81M 0.44% 36
2021
Q4 		$662M Sell
1,166,076
-50,521
-4% -$25.9M 0.4% 53
2021
Q3 		$547M Sell
1,216,597
-63,618
-5% -$28M 0.34% 67
2021
Q2 		$507M Sell
1,280,215
-180,048
-12% -$68.1M 0.3% 73
2021
Q1 		$515M Sell
1,460,263
-27,580
-2% -$9.6M 0.32% 67
2020
Q4 		$561M Sell
1,487,843
-200,103
-12% -$74.8M 0.36% 57
2020
Q3 		$599M Sell
1,687,946
-112,403
-6% -$37.8M 0.4% 45
2020
Q2 		$546M Sell
1,800,349
-130,351
-7% -$39.7M 0.39% 50
2020
Q1 		$551M Buy
1,930,700
+201,013
+12% +$61M 0.47% 41
2019
Q4 		$508M Buy
1,729,687
+10,200
+0.6% +$3.03M 0.4% 50
2019
Q3 		$495M Sell
1,719,487
-1,746
-0.1% -$491K 0.43% 42
2019
Q2 		$455M Sell
1,721,233
-18,059
-1% -$4.5M 0.41% 49
2019
Q1 		$421M Buy
1,739,292
+12,662
+0.7% +$2.77M 0.39% 54
2018
Q4 		$349M Buy
1,726,630
+290,920
+20% +$65M 0.38% 56
2018
Q3 		$337M Buy
1,435,710
+26,087
+2% +$5.88M 0.36% 59
2018
Q2 		$295M Buy
1,409,623
+118,911
+9% +$23.5M 0.34% 63
2018
Q1 		$243M Buy
1,290,712
+6,651
+0.5% +$1.25M 0.31% 68
2017
Q4 		$239M Buy
1,284,061
+32,343
+3% +$5.58M 0.31% 71
2017
Q3 		$206M Sell
1,251,718
-742
-0.1% -$117K 0.29% 76
2017
Q2 		$200M Buy
1,252,460
+28,604
+2% +$4.93M 0.29% 74
2017
Q1 		$205M Buy
1,223,856
+809
+0.1% +$136K 0.32% 69
2016
Q4 		$196M Sell
1,223,047
-34,943
-3% -$5.33M 0.32% 65
2016
Q3 		$192M Buy
1,257,990
+12,707
+1% +$2.05M 0.31% 67
2016
Q2 		$196M Buy
1,245,283
+9,511
+0.8% +$1.44M 0.34% 64
2016
Q1 		$195M Buy
1,235,772
+28,081
+2% +$4.26M 0.34% 59
2015
Q4 		$197M Buy
1,207,691
+18,427
+2% +$2.91M 0.35% 62
2015
Q3 		$172M Buy
1,189,264
+36,276
+3% +$5.18M 0.33% 68
2015
Q2 		$156M Buy
1,152,988
+21,348
+2% +$3.07M 0.28% 79
2015
Q1 		$171M Buy
1,131,640
+103,117
+10% +$15.1M 0.31% 72
2014
Q4 		$148M Sell
1,028,523
-35,258
-3% -$4.79M 0.29% 77
2014
Q3 		$133M Buy
1,063,781
+2,175
+0.2% +$263K 0.27% 88
2014
Q2 		$122M Sell
1,061,606
-18,104
-2% -$2.08M 0.25% 96
2014
Q1 		$121M Sell
1,079,710
-29,319
-3% -$3.35M 0.25% 90
2013
Q4 		$132M Sell
1,109,029
-31,409
-3% -$3.76M 0.27% 85
2013
Q3 		$131M Sell
1,140,438
-11,485
-1% -$1.33M 0.28% 82
2013
Q2 		$127M Buy
+1,151,923
New +$126M 0.29% 77

Other funds holding COST

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
DAM
Diamant Asset Management Ridgefield, Connecticut $137B AUM 18.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Sumitomo Mitsui Trust Group's COST Position: Q1 2026 in Review

Sumitomo Mitsui Trust Group reduced its Costco (COST) stake by 3.2% in Q1 2026, selling an estimated $33.6M and leaving 1,049,993 shares worth $1.05B. The position accounts for 0.68% of the portfolio, ranked #22.

Sumitomo Mitsui Trust Group first reported a position in COST in Q2 2013 and has held it in 52 quarters since. The position peaked at $1.09B in Q2 2025. 4,236 funds tracked by Wall St. Rank hold COST as of Q1 2026.

  • Sumitomo Mitsui Trust Group held 1,049,993 shares of Costco worth $1.05B as of Q1 2026.
  • Sumitomo Mitsui Trust Group sold 34,432 Costco shares in Q1 2026, an estimated $33.6M.
  • Costco made up 0.68% of Sumitomo Mitsui Trust Group's portfolio in Q1 2026, its #22 holding.
  • Sumitomo Mitsui Trust Group first reported a position in Costco in Q2 2013 and has held it in 52 quarters since.
  • Sumitomo Mitsui Trust Group's Costco position peaked at $1.09B in Q2 2025.
  • 4,236 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on Sumitomo Mitsui Trust Group's 13F filing for Q1 2026, filed 30 Apr 2026.