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Platt Wealth Management’s Costco COST Stock Holding History

Platt Wealth 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
2026
Q1 		$2.79M Buy
2,796
+2,205
+373% +$2.15M 2.72% 13
2025
Q4 		$509K Buy
+591
New +$536K 0.5% 29

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

Platt Wealth Management's COST Position: Q1 2026 in Review

Platt Wealth Management increased its Costco (COST) stake by 373% in Q1 2026, buying an estimated $2.15M and bringing the position to 2,796 shares worth $2.79M. The position accounts for 2.72% of the portfolio, ranked #13.

Platt Wealth Management first reported a position in COST in Q4 2025 and has held it in 2 quarters since. 4,239 funds tracked by Wall St. Rank hold COST as of Q1 2026.

  • Platt Wealth Management held 2,796 shares of Costco worth $2.79M as of Q1 2026.
  • Platt Wealth Management bought 2,205 Costco shares in Q1 2026, an estimated $2.15M.
  • Costco made up 2.72% of Platt Wealth Management's portfolio in Q1 2026, its #13 holding.
  • Platt Wealth Management first reported a position in Costco in Q4 2025 and has held it in 2 quarters since.
  • 4,239 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on Platt Wealth Management's 13F filing for Q1 2026, filed 1 May 2026.