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Plato Investment Management’s Costco COST Stock Holding History

Plato Investment 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
Q2 		– Sell
-12,533
Closed -$12.5M – 509
2026
Q1 		$12.5M Buy
12,533
+246
+2% +$240K 0.84% 15
2025
Q4 		$10.6M Hold
12,287
– – 0.7% 18
2025
Q3 		$11.3M Buy
12,287
+83
+0.7% +$79.6K 0.76% 17
2025
Q2 		$12M Buy
12,204
+43
+0.4% +$42.7K 0.9% 14
2025
Q1 		$11.6M Sell
12,161
-855
-7% -$834K 0.98% 13
2024
Q4 		$12M Sell
13,016
-86
-0.7% -$79.8K 0.88% 13
2024
Q3 		$11.6M Sell
13,102
-15
-0.1% -$13K 0.94% 15
2024
Q2 		$11.1M Buy
13,117
+536
+4% +$418K 1.04% 14
2024
Q1 		$9.22M Buy
12,581
+11,722
+1,365% +$8.37M 0.95% 16
2023
Q4 		$567K Buy
+859
New +$509K 0.7% 30

Other funds holding COST

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $1T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Plato Investment Management's COST Position: Q2 2026 in Review

Plato Investment Management sold out of Costco (COST) in Q2 2026, closing a stake of 12,533 shares — an estimated $12.5M sold.

Plato Investment Management first reported a position in COST in Q4 2023 and held it in 10 quarters. The position peaked at $12.5M in Q1 2026. 4,250 funds tracked by Wall St. Rank hold COST as of Q2 2026.

  • Plato Investment Management reported no remaining Costco position as of Q2 2026 after selling out during the quarter.
  • Plato Investment Management sold 12,533 Costco shares in Q2 2026, an estimated $12.5M.
  • Plato Investment Management first reported a position in Costco in Q4 2023 and held it in 10 quarters.
  • Plato Investment Management's Costco position peaked at $12.5M in Q1 2026.
  • 4,250 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on Plato Investment Management's 13F filing for Q2 2026, filed 7 Aug 2026.