Winslow Capital Management
COST icon

Winslow Capital Management’s Costco COST Stock Holding History

Winslow Capital Management’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 		$10.2M Buy
+10,221
New +$9.96M 0.04% 50
2025
Q2 		– Sell
-229
Closed -$217K – 67
2025
Q1 		$217K Sell
229
-509
-69% -$496K ﹤0.01% 62
2024
Q4 		$676K Sell
738
-283
-28% -$263K ﹤0.01% 58
2024
Q3 		$905K Sell
1,021
-379,084
-100% -$329M ﹤0.01% 52
2024
Q2 		$323M Sell
380,105
-15,904
-4% -$12.4M 1.17% 33
2024
Q1 		$290M Sell
396,009
-33,019
-8% -$23.6M 1.09% 33
2023
Q4 		$283M Sell
429,028
-159,452
-27% -$94.5M 1.18% 37
2023
Q3 		$332M Sell
588,480
-101,203
-15% -$55.9M 1.58% 25
2023
Q2 		$371M Sell
689,683
-437,392
-39% -$221M 1.67% 20
2023
Q1 		$560M Buy
1,127,075
+88,268
+8% +$43.3M 2.86% 13
2022
Q4 		$474M Buy
1,038,807
+34,494
+3% +$16.9M 2.64% 12
2022
Q3 		$474M Sell
1,004,313
-59,216
-6% -$30.8M 2.77% 11
2022
Q2 		$510M Buy
1,063,529
+641,648
+152% +$326M 2.72% 12
2022
Q1 		$243M Buy
+421,881
New +$221M 1.05% 43
2020
Q4 		– Sell
-1,097,045
Closed -$389M – 66
2020
Q3 		$389M Buy
1,097,045
+507,918
+86% +$171M 1.73% 16
2020
Q2 		$179M Buy
+589,127
New +$179M 0.87% 44
2020
Q1 		– Sell
-574,671
Closed -$169M – 57
2019
Q4 		$169M Sell
574,671
-22,906
-4% -$6.81M 0.88% 45
2019
Q3 		$172M Buy
+597,577
New +$168M 0.94% 45
2018
Q1 		– Sell
-135
Closed -$25K – 91
2017
Q4 		$25K Sell
135
-93
-41% -$16.1K ﹤0.01% 68
2017
Q3 		$37K Sell
228
-89
-28% -$14K ﹤0.01% 60
2017
Q2 		$51K Sell
317
-1,626,474
-100% -$280M ﹤0.01% 64
2017
Q1 		$273M Sell
1,626,791
-523,589
-24% -$87.7M 1.3% 29
2016
Q4 		$344M Buy
2,150,380
+933,722
+77% +$143M 1.58% 22
2016
Q3 		$186M Sell
1,216,658
-910,799
-43% -$147M 0.77% 63
2016
Q2 		$334M Buy
2,127,457
+221,979
+12% +$33.6M 1.36% 29
2016
Q1 		$300M Sell
1,905,478
-240,725
-11% -$36.5M 1.18% 39
2015
Q4 		$347M Sell
2,146,203
-326,598
-13% -$51.6M 1.24% 39
2015
Q3 		$357M Buy
2,472,801
+153,450
+7% +$21.9M 1.3% 34
2015
Q2 		$313M Buy
2,319,351
+251,889
+12% +$36.2M 1.04% 45
2015
Q1 		$313M Sell
2,067,462
-288,860
-12% -$42.4M 0.97% 54
2014
Q4 		$334M Sell
2,356,322
-349,836
-13% -$47.6M 1.03% 49
2014
Q3 		$339M Sell
2,706,158
-574,722
-18% -$69.5M 1.04% 47
2014
Q2 		$378M Sell
3,280,880
-86,717
-3% -$9.95M 1.15% 38
2014
Q1 		$376M Buy
3,367,597
+831,805
+33% +$95.2M 1.18% 41
2013
Q4 		$302M Sell
2,535,792
-74,628
-3% -$8.92M 0.89% 51
2013
Q3 		$301M Sell
2,610,420
-227,773
-8% -$26.3M 0.98% 51
2013
Q2 		$314M Buy
+2,838,193
New +$310M 1.02% 50

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

Winslow Capital Management's COST Position: Q1 2026 in Review

Winslow Capital Management opened a new position in Costco (COST) in Q1 2026: 10,221 shares worth $10.2M. The stake represents 0.04% of the portfolio and ranks #50 among its holdings. This is a return to the name: Winslow Capital Management previously reported a position in COST as recently as Q1 2025.

Winslow Capital Management first reported a position in COST in Q2 2013 and has held it in 37 quarters since. The position peaked at $560M in Q1 2023. 4,236 funds tracked by Wall St. Rank hold COST as of Q1 2026.

  • Winslow Capital Management held 10,221 shares of Costco worth $10.2M as of Q1 2026.
  • Costco was a new Winslow Capital Management position in Q1 2026.
  • Costco made up 0.04% of Winslow Capital Management's portfolio in Q1 2026, its #50 holding.
  • Winslow Capital Management first reported a position in Costco in Q2 2013 and has held it in 37 quarters since.
  • Winslow Capital Management's Costco position peaked at $560M in Q1 2023.
  • 4,236 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on Winslow Capital Management's 13F filing for Q1 2026, filed 14 May 2026.