Guardian Partners
COST icon

Guardian Partners’s Costco COST Stock Holding History

Guardian Partners’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
Q3 		$9.32M Buy
10,237
+126
+1% +$118K 0.83% 34
2026
Q2 		$9.46M Sell
10,111
-249
-2% -$248K 0.85% 36
2026
Q1 		$10.4M Sell
10,360
-211
-2% -$206K 0.86% 37
2025
Q4 		$10.3M Sell
10,571
-1,092
-9% -$990K 0.83% 37
2025
Q3 		$10.7M Buy
11,663
+102
+0.9% +$97.8K 0.91% 36
2025
Q2 		$11.4M Buy
11,561
+1,632
+16% +$1.62M 1.02% 32
2025
Q1 		$9.7M Sell
9,929
-432
-4% -$421K 1% 34
2024
Q4 		$9.6M Buy
+10,361
New +$9.6M 0.98% 37

Other funds holding COST

BlackRock
BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.27T AUM 50.62% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.21T AUM
Morgan Stanley
Morgan Stanley New York $1.96T AUM 27.49% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.84T AUM 33.86% 1-Year Est. Return
Fisher Asset Management
Fisher Asset Management Camas, Washington $348B AUM 26.9% 1-Year Est. Return

Guardian Partners's COST Position: Q3 2026 in Review

Guardian Partners increased its Costco (COST) stake by 1.2% in Q3 2026, buying an estimated $118K and bringing the position to 10,237 shares worth $9.32M. The position accounts for 0.83% of the portfolio, ranked #34.

Guardian Partners first reported a position in COST in Q4 2024 and has held it in 8 quarters since. The position peaked at $11.4M in Q2 2025. 3,744 funds tracked by Wall St. Rank hold COST as of Q3 2026.

  • Guardian Partners held 10,237 shares of Costco worth $9.32M as of Q3 2026.
  • Guardian Partners bought 126 Costco shares in Q3 2026, an estimated $118K.
  • Costco made up 0.83% of Guardian Partners's portfolio in Q3 2026, its #34 holding.
  • Guardian Partners first reported a position in Costco in Q4 2024 and has held it in 8 quarters since.
  • Guardian Partners's Costco position peaked at $11.4M in Q2 2025.
  • 3,744 funds tracked by Wall St. Rank held Costco as of Q3 2026.

Based on Guardian Partners's 13F filing for Q3 2026, filed 21 Oct 2026.