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MassMutual Private Wealth & Trust’s Costco COST Stock Holding History

MassMutual Private Wealth & Trust’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 		$14.9M Buy
15,898
+79
+0.5% +$78.7K 0.38% 60
2026
Q1 		$15.8M Buy
15,819
+772
+5% +$752K 0.43% 59
2025
Q4 		$13M Sell
15,047
-40
-0.3% -$36.2K 0.33% 73
2025
Q3 		$14M Sell
15,087
-690
-4% -$661K 0.36% 70
2025
Q2 		$15.6M Buy
15,777
+166
+1% +$165K 0.42% 64
2025
Q1 		$14.8M Sell
15,611
-57
-0.4% -$55.6K 0.43% 60
2024
Q4 		$14.4M Buy
15,668
+1,084
+7% +$1.01M 0.4% 64
2024
Q3 		$12.9M Sell
14,584
-228
-2% -$198K 0.37% 70
2024
Q2 		$12.6M Buy
14,812
+188
+1% +$147K 0.38% 65
2024
Q1 		$10.7M Sell
14,624
-100
-0.7% -$71.4K 0.33% 73
2023
Q4 		$9.72M Buy
14,724
+338
+2% +$200K 0.33% 73
2023
Q3 		$8.13M Buy
14,386
+585
+4% +$323K 0.3% 81
2023
Q2 		$7.43M Sell
13,801
-5,984
-30% -$3.03M 0.27% 91
2023
Q1 		$9.83M Sell
19,785
-524
-3% -$257K 0.38% 75
2022
Q4 		$9.27M Buy
20,309
+238
+1% +$116K 0.38% 72
2022
Q3 		$9.48M Buy
20,071
+401
+2% +$209K 0.43% 66
2022
Q2 		$9.43M Buy
19,670
+262
+1% +$133K 0.41% 67
2022
Q1 		$11.2M Buy
19,408
+632
+3% +$332K 0.42% 64
2021
Q4 		$10.7M Buy
18,776
+138
+0.7% +$70.7K 0.4% 68
2021
Q3 		$8.38M Buy
18,638
+856
+5% +$376K 0.35% 80
2021
Q2 		$7.04M Buy
17,782
+1,248
+8% +$472K 0.3% 90
2021
Q1 		$5.83M Buy
16,534
+1,590
+11% +$553K 0.27% 101
2020
Q4 		$5.63M Buy
14,944
+895
+6% +$334K 0.29% 97
2020
Q3 		$4.99M Buy
14,049
+5,559
+65% +$1.87M 0.29% 93
2020
Q2 		$2.57M Buy
8,490
+2,068
+32% +$629K 0.17% 144
2020
Q1 		$1.83M Buy
6,422
+406
+7% +$123K 0.15% 150
2019
Q4 		$1.77M Buy
6,016
+313
+5% +$93K 0.11% 167
2019
Q3 		$1.64M Buy
5,703
+554
+11% +$156K 0.11% 167
2019
Q2 		$1.36M Buy
5,149
+314
+6% +$78.3K 0.09% 179
2019
Q1 		$1.17M Sell
4,835
-88
-2% -$19.2K 0.08% 186
2018
Q4 		$1M Buy
4,923
+115
+2% +$25.7K 0.09% 180
2018
Q3 		$1.13M Buy
4,808
+43
+0.9% +$9.69K 0.08% 179
2018
Q2 		$996K Buy
4,765
+622
+15% +$123K 0.08% 183
2018
Q1 		$781K Sell
4,143
-23
-0.6% -$4.34K 0.06% 208
2017
Q4 		$775K Sell
4,166
-413
-9% -$71.3K 0.06% 203
2017
Q3 		$752K Sell
4,579
-121
-3% -$19K 0.06% 198
2017
Q2 		$752K Buy
4,700
+40
+0.9% +$6.89K 0.07% 193
2017
Q1 		$781K Buy
4,660
+962
+26% +$161K 0.07% 194
2016
Q4 		$592K Buy
+3,698
New +$565K 0.07% 182
2016
Q2 		$606K Sell
3,862
-4
-0.1% -$606 0.08% 210
2016
Q1 		$609K Sell
3,866
-138
-3% -$20.9K 0.08% 203
2015
Q4 		$647K Buy
4,004
+370
+10% +$58.5K 0.09% 187
2015
Q3 		$455K Buy
3,634
+110
+3% +$15.7K 0.1% 196
2015
Q2 		$406K Sell
3,524
-55
-2% -$7.91K 0.09% 190
2015
Q1 		$542K Buy
3,579
+2,470
+223% +$362K 0.09% 204
2014
Q4 		$157K Sell
1,109
-2,525
-69% -$343K 0.05% 198
2014
Q3 		$455K Buy
3,634
+2,667
+276% +$322K 0.09% 195
2014
Q2 		$111K Buy
967
+151
+19% +$17.3K 0.04% 189
2014
Q1 		$91.1K Sell
816
-282
-26% -$32.3K 0.05% 177
2013
Q4 		$131K Buy
+1,098
New +$131K 0.12% 126

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

MassMutual Private Wealth & Trust's COST Position: Q2 2026 in Review

MassMutual Private Wealth & Trust increased its Costco (COST) stake by 0.5% in Q2 2026, buying an estimated $78.7K and bringing the position to 15,898 shares worth $14.9M. The position accounts for 0.38% of the portfolio, ranked #60.

MassMutual Private Wealth & Trust first reported a position in COST in Q4 2013 and has held it in 50 quarters since. The position peaked at $15.8M in Q1 2026. 2,102 funds tracked by Wall St. Rank hold COST as of Q2 2026.

  • MassMutual Private Wealth & Trust held 15,898 shares of Costco worth $14.9M as of Q2 2026.
  • MassMutual Private Wealth & Trust bought 79 Costco shares in Q2 2026, an estimated $78.7K.
  • Costco made up 0.38% of MassMutual Private Wealth & Trust's portfolio in Q2 2026, its #60 holding.
  • MassMutual Private Wealth & Trust first reported a position in Costco in Q4 2013 and has held it in 50 quarters since.
  • MassMutual Private Wealth & Trust's Costco position peaked at $15.8M in Q1 2026.
  • 2,102 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on MassMutual Private Wealth & Trust's 13F filing for Q2 2026, filed 2 Jul 2026.