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Woodline Partners’s Costco COST Stock Holding History

Woodline Partners’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 		$125M Buy
133,891
+346
+0.3% +$345K 0.39% 49
2026
Q1 		$133M Buy
133,545
+57,930
+77% +$56.5M 0.5% 30
2025
Q4 		$65.2M Buy
75,615
+17,005
+29% +$15.4M 0.25% 91
2025
Q3 		$54.3M Buy
58,610
+10,617
+22% +$10.2M 0.26% 95
2025
Q2 		$47.5M Buy
47,993
+10,491
+28% +$10.4M 0.25% 105
2025
Q1 		$35.5M Buy
37,502
+10,894
+41% +$10.6M 0.23% 136
2024
Q4 		$24.4M Buy
+26,608
New +$24.7M 0.16% 178

Other funds holding COST

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $1T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Woodline Partners's COST Position: Q2 2026 in Review

Woodline Partners increased its Costco (COST) stake by 0.26% in Q2 2026, buying an estimated $345K and bringing the position to 133,891 shares worth $125M. The position accounts for 0.39% of the portfolio, ranked #49.

Woodline Partners first reported a position in COST in Q4 2024 and has held it in 7 quarters since. The position peaked at $133M in Q1 2026. 4,244 funds tracked by Wall St. Rank hold COST as of Q2 2026.

  • Woodline Partners held 133,891 shares of Costco worth $125M as of Q2 2026.
  • Woodline Partners bought 346 Costco shares in Q2 2026, an estimated $345K.
  • Costco made up 0.39% of Woodline Partners's portfolio in Q2 2026, its #49 holding.
  • Woodline Partners first reported a position in Costco in Q4 2024 and has held it in 7 quarters since.
  • Woodline Partners's Costco position peaked at $133M in Q1 2026.
  • 4,244 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on Woodline Partners's 13F filing for Q2 2026, filed 14 Aug 2026.