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Stonebrook Private’s Costco COST Stock Holding History

Stonebrook Private’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 		$1.61M Buy
1,619
+40
+3% +$39K 0.34% 61
2025
Q4 		$1.36M Buy
1,579
+14
+0.9% +$12.7K 0.29% 66
2025
Q3 		$1.45M Sell
1,565
-13
-0.8% -$12.5K 0.31% 73
2025
Q2 		$1.56M Buy
1,578
+20
+1% +$19.9K 0.37% 70
2025
Q1 		$1.47M Buy
1,558
+119
+8% +$116K 0.38% 67
2024
Q4 		$1.32M Buy
1,439
+43
+3% +$39.9K 0.35% 68
2024
Q3 		$1.24M Buy
1,396
+26
+2% +$22.6K 0.33% 72
2024
Q2 		$1.16M Buy
1,370
+22
+2% +$17.2K 0.33% 76
2024
Q1 		$988K Buy
1,348
+241
+22% +$172K 0.29% 71
2023
Q4 		$731K Buy
+1,107
New +$656K 0.24% 82

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

Stonebrook Private's COST Position: Q1 2026 in Review

Stonebrook Private increased its Costco (COST) stake by 2.5% in Q1 2026, buying an estimated $39K and bringing the position to 1,619 shares worth $1.61M. The position accounts for 0.34% of the portfolio, ranked #61.

Stonebrook Private first reported a position in COST in Q4 2023 and has held it in 10 quarters since. 4,239 funds tracked by Wall St. Rank hold COST as of Q1 2026.

  • Stonebrook Private held 1,619 shares of Costco worth $1.61M as of Q1 2026.
  • Stonebrook Private bought 40 Costco shares in Q1 2026, an estimated $39K.
  • Costco made up 0.34% of Stonebrook Private's portfolio in Q1 2026, its #61 holding.
  • Stonebrook Private first reported a position in Costco in Q4 2023 and has held it in 10 quarters since.
  • 4,239 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on Stonebrook Private's 13F filing for Q1 2026, filed 11 May 2026.