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Blalock Williams’s Costco COST Stock Holding History

Blalock Williams’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 		$1.01M Buy
1,011
+166
+20% +$162K 0.78% 36
2025
Q4 		$729K Sell
845
-97
-10% -$87.9K 0.58% 43
2025
Q3 		$872K Sell
942
-35
-4% -$33.5K 0.76% 35
2025
Q2 		$967K Sell
977
-34
-3% -$33.8K 0.97% 28
2025
Q1 		$956K Buy
1,011
+50
+5% +$48.7K 1.07% 27
2024
Q4 		$881K Buy
+961
New +$892K 1.02% 28

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

Blalock Williams's COST Position: Q1 2026 in Review

Blalock Williams increased its Costco (COST) stake by 20% in Q1 2026, buying an estimated $162K and bringing the position to 1,011 shares worth $1.01M. The position accounts for 0.78% of the portfolio, ranked #36.

Blalock Williams first reported a position in COST in Q4 2024 and has held it in 6 quarters since. 4,239 funds tracked by Wall St. Rank hold COST as of Q1 2026.

  • Blalock Williams held 1,011 shares of Costco worth $1.01M as of Q1 2026.
  • Blalock Williams bought 166 Costco shares in Q1 2026, an estimated $162K.
  • Costco made up 0.78% of Blalock Williams's portfolio in Q1 2026, its #36 holding.
  • Blalock Williams first reported a position in Costco in Q4 2024 and has held it in 6 quarters since.
  • 4,239 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on Blalock Williams's 13F filing for Q1 2026, filed 14 May 2026.