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COST icon

Mayport LLC’s Costco COST Stock Holding History

Mayport LLC’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 		$337K Buy
339
+21
+7% +$20.5K 0.06% 95
2025
Q4 		$274K Sell
318
-16
-5% -$14.5K 0.06% 89
2025
Q3 		$309K Buy
334
+8
+2% +$7.67K 0.07% 81
2025
Q2 		$322K Buy
326
+8
+3% +$7.95K 0.08% 76
2025
Q1 		$301K Buy
+318
New +$310K 0.08% 72

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

Mayport LLC's COST Position: Q1 2026 in Review

Mayport LLC increased its Costco (COST) stake by 6.6% in Q1 2026, buying an estimated $20.5K and bringing the position to 339 shares worth $337K. The position accounts for 0.06% of the portfolio, ranked #95.

Mayport LLC first reported a position in COST in Q1 2025 and has held it in 5 quarters since. 4,238 funds tracked by Wall St. Rank hold COST as of Q1 2026.

  • Mayport LLC held 339 shares of Costco worth $337K as of Q1 2026.
  • Mayport LLC bought 21 Costco shares in Q1 2026, an estimated $20.5K.
  • Costco made up 0.06% of Mayport LLC's portfolio in Q1 2026, its #95 holding.
  • Mayport LLC first reported a position in Costco in Q1 2025 and has held it in 5 quarters since.
  • 4,238 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on Mayport LLC's 13F filing for Q1 2026, filed 21 Apr 2026.