MS
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Maven Securities’s Costco COST Stock Holding History

Maven Securities’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 		$40.6M Buy
+40,700
New +$39.7M 0.78% 29
2025
Q3 		– Sell
-1,932
Closed -$1.91M – 526
2025
Q2 		$1.91M Sell
1,932
-1,367
-41% -$1.36M 0.05% 324
2025
Q1 		$3.12M Buy
3,299
+2,057
+166% +$2.01M 0.1% 196
2024
Q4 		$1.14M Sell
1,242
-1,760
-59% -$1.63M 0.03% 398
2024
Q3 		$2.66M Sell
3,002
-3,178
-51% -$2.76M 0.05% 294
2024
Q2 		$5.25M Sell
6,180
-910
-13% -$710K 0.12% 184
2024
Q1 		$5.19M Sell
7,090
-1,387
-16% -$990K 0.31% 38
2023
Q4 		$5.6M Buy
8,477
+7,041
+490% +$4.17M 0.12% 129
2023
Q3 		$811K Buy
1,436
+1,001
+230% +$553K 0.01% 684
2023
Q2 		$234K Buy
+435
New +$220K ﹤0.01% 790
2023
Q1 		– Sell
-450
Closed -$221K – 940
2022
Q4 		$205K Sell
450
-8,103
-95% -$3.96M ﹤0.01% 777
2022
Q3 		$4.04M Buy
+8,553
New +$4.45M 0.07% 154
2022
Q2 		– Sell
-576
Closed -$292K – 924
2022
Q1 		$332K Buy
+576
New +$302K 0.01% 669
2021
Q4 		– Sell
-1,070
Closed -$548K – 885
2021
Q3 		$481K Sell
1,070
-239
-18% -$105K 0.02% 664
2021
Q2 		$518K Buy
+1,309
New +$495K 0.02% 629
2021
Q1 		– Sell
-1,303
Closed -$454K – 1185
2020
Q4 		$491K Buy
+1,303
New +$487K 0.05% 362
2020
Q3 		– Sell
-884
Closed -$297K – 627
2020
Q2 		$267K Sell
884
-3,118
-78% -$949K 0.02% 438
2020
Q1 		$1.14M Buy
4,002
+3,264
+442% +$990K 0.14% 104
2019
Q4 		$216K Sell
738
-12
-2% -$3.57K 0.02% 337
2019
Q3 		$216K Buy
+750
New +$211K 0.07% 175

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

Maven Securities's COST Position: Q1 2026 in Review

Maven Securities opened a new position in Costco (COST) in Q1 2026: 40,700 shares worth $40.6M. The stake represents 0.78% of the portfolio and ranks #29 among its holdings. This is a return to the name: Maven Securities previously reported a position in COST as recently as Q2 2025.

Maven Securities first reported a position in COST in Q3 2019 and has held it in 20 quarters since. 4,235 funds tracked by Wall St. Rank hold COST as of Q1 2026.

  • Maven Securities held 40,700 shares of Costco worth $40.6M as of Q1 2026.
  • Costco was a new Maven Securities position in Q1 2026.
  • Costco made up 0.78% of Maven Securities's portfolio in Q1 2026, its #29 holding.
  • Maven Securities first reported a position in Costco in Q3 2019 and has held it in 20 quarters since.
  • 4,235 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on Maven Securities's 13F filing for Q1 2026, filed 15 May 2026.