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MASECO Private Wealth’s Costco COST Stock Holding History

MASECO Private Wealth’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 		$94.2K Sell
95
-117
-55% -$114K ﹤0.01% 120
2025
Q4 		$183K Hold
212
– – 0.01% 97
2025
Q3 		$196K Sell
212
-23
-10% -$22K 0.01% 51
2025
Q2 		$232K Buy
+235
New +$234K 0.01% 98

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

MASECO Private Wealth's COST Position: Q1 2026 in Review

MASECO Private Wealth reduced its Costco (COST) stake by 55% in Q1 2026, selling an estimated $114K and leaving 95 shares worth $94.2K. The position accounts for ﹤0.01% of the portfolio, ranked #120.

MASECO Private Wealth first reported a position in COST in Q2 2025 and has held it in 4 quarters since. The position peaked at $232K in Q2 2025. 4,237 funds tracked by Wall St. Rank hold COST as of Q1 2026.

  • MASECO Private Wealth held 95 shares of Costco worth $94.2K as of Q1 2026.
  • MASECO Private Wealth sold 117 Costco shares in Q1 2026, an estimated $114K.
  • Costco made up ﹤0.01% of MASECO Private Wealth's portfolio in Q1 2026, its #120 holding.
  • MASECO Private Wealth first reported a position in Costco in Q2 2025 and has held it in 4 quarters since.
  • MASECO Private Wealth's Costco position peaked at $232K in Q2 2025.
  • 4,237 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on MASECO Private Wealth's 13F filing for Q1 2026, filed 21 Apr 2026.