Atwater Malick
COST icon

Atwater Malick’s Costco COST Stock Holding History

Atwater Malick’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 		$210K Sell
231
-6
-3% -$5.6K 0.05% 120
2026
Q2 		$222K Buy
+237
New +$236K 0.05% 115
2025
Q3 		– Sell
-207
Closed -$205K – 85
2025
Q2 		$205K Buy
+207
New +$206K 0.06% 82
2019
Q4 		– Sell
-75
Closed -$22K – 77
2019
Q3 		$22K Buy
+75
New +$21.1K 0.02% 107

Other funds holding COST

Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return
Fisher Asset Management
Fisher Asset Management Camas, Washington $348B AUM 26.9% 1-Year Est. Return
Amundi
Amundi Paris, France $496B AUM 35.36% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return
Nuveen
Nuveen Charlotte, North Carolina $420B AUM 34.97% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $765B AUM 28.39% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Deutsche Bank
Deutsche Bank Frankfurt Am Main Ge, Germany $362B AUM 34.89% 1-Year Est. Return
Bank of Montreal
Bank of Montreal Toronto, Ontario, Canada $313B AUM 26.62% 1-Year Est. Return

Atwater Malick's COST Position: Q3 2026 in Review

Atwater Malick reduced its Costco (COST) stake by 2.5% in Q3 2026, selling an estimated $5.6K and leaving 231 shares worth $210K. The position accounts for 0.05% of the portfolio, ranked #120.

Atwater Malick first reported a position in COST in Q3 2019 and has held it in 4 quarters since. The position peaked at $222K in Q2 2026. 2,986 funds tracked by Wall St. Rank hold COST as of Q3 2026.

  • Atwater Malick held 231 shares of Costco worth $210K as of Q3 2026.
  • Atwater Malick sold 6 Costco shares in Q3 2026, an estimated $5.6K.
  • Costco made up 0.05% of Atwater Malick's portfolio in Q3 2026, its #120 holding.
  • Atwater Malick first reported a position in Costco in Q3 2019 and has held it in 4 quarters since.
  • Atwater Malick's Costco position peaked at $222K in Q2 2026.
  • 2,986 funds tracked by Wall St. Rank held Costco as of Q3 2026.

Based on Atwater Malick's 13F filing for Q3 2026, filed 15 Oct 2026.