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Marex Group’s Costco COST Stock Holding History

Marex Group’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 		$99.6M Buy
+100,000
New +$97.5M 0.63% 43
2025
Q3 		– Sell
-50,000
Closed -$49.5M – 885
2025
Q2 		$49.5M Buy
+50,000
New +$49.7M 0.43% 56

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

Marex Group's COST Position: Q1 2026 in Review

Marex Group increased its Costco (COST) stake by 2,594% in Q1 2026, buying an estimated $70.4M and bringing the position to 75,075 shares worth $74.8M. The position accounts for 0.47% of the portfolio, ranked #60.

Marex Group first reported a position in COST in Q1 2024 and has held it in 9 quarters since. The position peaked at $180M in Q2 2024. 4,236 funds tracked by Wall St. Rank hold COST as of Q1 2026.

  • Marex Group held 75,075 shares of Costco worth $74.8M as of Q1 2026.
  • Marex Group bought 72,288 Costco shares in Q1 2026, an estimated $70.4M.
  • Costco made up 0.47% of Marex Group's portfolio in Q1 2026, its #60 holding.
  • Marex Group first reported a position in Costco in Q1 2024 and has held it in 9 quarters since.
  • Marex Group's Costco position peaked at $180M in Q2 2024.
  • 4,236 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on Marex Group's 13F filing for Q1 2026, filed 13 May 2026.