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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
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 		$9.69M Sell
9,929
-432
-4% -$421K 1% 34
2024
Q4 		$9.61M Buy
+10,361
New +$9.61M 0.98% 37

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

Guardian Partners's COST Position: Q1 2026 in Review

Guardian Partners reduced its Costco (COST) stake by 2% in Q1 2026, selling an estimated $206K and leaving 10,360 shares worth $10.4M. The position accounts for 0.86% of the portfolio, ranked #37.

Guardian Partners first reported a position in COST in Q4 2024 and has held it in 6 quarters since. The position peaked at $11.4M in Q2 2025. 4,237 funds tracked by Wall St. Rank hold COST as of Q1 2026.

  • Guardian Partners held 10,360 shares of Costco worth $10.4M as of Q1 2026.
  • Guardian Partners sold 211 Costco shares in Q1 2026, an estimated $206K.
  • Costco made up 0.86% of Guardian Partners's portfolio in Q1 2026, its #37 holding.
  • Guardian Partners first reported a position in Costco in Q4 2024 and has held it in 6 quarters since.
  • Guardian Partners's Costco position peaked at $11.4M in Q2 2025.
  • 4,237 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on Guardian Partners's 13F filing for Q1 2026, filed 18 May 2026.