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Boothbay Fund Management’s Costco COST Stock Holding History

Boothbay Fund 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
2023
Q1 		– Sell
-500
Closed -$228K – 2183
2022
Q4 		$228K Sell
500
-600
-55% -$293K 0.01% 1543
2022
Q3 		$520K Sell
1,100
-300
-21% -$156K 0.01% 1205
2022
Q2 		$671K Sell
1,400
-200
-13% -$101K 0.02% 1017
2022
Q1 		$921K Buy
+1,600
New +$840K 0.02% 950

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 $147M AUM 25.76% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Boothbay Fund Management's COST Position: Q1 2026 in Review

Boothbay Fund Management increased its Costco (COST) stake by 168% in Q1 2026, buying an estimated $1.17M and bringing the position to 1,922 shares worth $1.92M. The position accounts for 0.02% of the portfolio, ranked #647.

Boothbay Fund Management first reported a position in COST in Q4 2015 and has held it in 23 quarters since. The position peaked at $23.5M in Q2 2025. 4,239 funds tracked by Wall St. Rank hold COST as of Q1 2026.

  • Boothbay Fund Management held 1,922 shares of Costco worth $1.92M as of Q1 2026.
  • Boothbay Fund Management bought 1,205 Costco shares in Q1 2026, an estimated $1.17M.
  • Costco made up 0.02% of Boothbay Fund Management's portfolio in Q1 2026, its #647 holding.
  • Boothbay Fund Management first reported a position in Costco in Q4 2015 and has held it in 23 quarters since.
  • Boothbay Fund Management's Costco position peaked at $23.5M in Q2 2025.
  • 4,239 funds tracked by Wall St. Rank held Costco as of Q1 2026.

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