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WS Management’s Costco COST Stock Holding History

WS 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
2024
Q4 		– Sell
-20,000
Closed -$17.7M – 52
2024
Q3 		$17.7M Buy
+20,000
New +$17.4M 1.24% 21
2024
Q2 		– Sell
-17,000
Closed -$12.5M – 55
2024
Q1 		$12.5M Buy
+17,000
New +$12.1M 0.78% 30

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

WS Management's COST Position: Q1 2026 in Review

WS Management increased its Costco (COST) stake by 20% in Q1 2026, buying an estimated $1.25M and bringing the position to 7,568 shares worth $7.54M. The position accounts for 0.67% of the portfolio, ranked #40.

WS Management first reported a position in COST in Q2 2013 and has held it in 52 quarters since. The position peaked at $53.9M in Q3 2024. 4,237 funds tracked by Wall St. Rank hold COST as of Q1 2026.

  • WS Management held 7,568 shares of Costco worth $7.54M as of Q1 2026.
  • WS Management bought 1,283 Costco shares in Q1 2026, an estimated $1.25M.
  • Costco made up 0.67% of WS Management's portfolio in Q1 2026, its #40 holding.
  • WS Management first reported a position in Costco in Q2 2013 and has held it in 52 quarters since.
  • WS Management's Costco position peaked at $53.9M in Q3 2024.
  • 4,237 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on WS Management's 13F filing for Q1 2026, filed 15 May 2026.