Arlington Trust’s Costco COST Stock Holding History

Arlington Trust’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	$1.68M	Buy	1,842 +1,259	+216%	+$1.18M	0.13%	34
2026 Q2	$545K	Sell	583 -55	-9%	-$54.8K	0.05%	57
2026 Q1	$636K	Buy	638 +118	+23%	+$115K	0.06%	50
2025 Q4	$448K	Sell	520 -2,329	-82%	-$2.11M	0.05%	54
2025 Q3	$2.64M	Sell	2,849 -18	-0.6%	-$17.3K	0.47%	31
2025 Q2	$2.84M	Buy	2,867 +202	+8%	+$201K	0.55%	25
2025 Q1	$2.52M	Sell	2,665 -31	-1%	-$30.2K	0.53%	26
2024 Q4	$2.47M	Sell	2,696 -138	-5%	-$128K	0.52%	25
2024 Q3	$2.51M	Buy	2,834 +5	+0.2%	+$4.34K	0.55%	24
2024 Q2	$2.4M	Buy	2,829 +115	+4%	+$89.7K	0.57%	26
2024 Q1	$1.99M	Sell	2,714 -29	-1%	-$20.7K	0.51%	27
2023 Q4	$1.81M	Buy	+2,743	New	+$1.63M	0.51%	29

Other funds holding COST

Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return

Fisher Asset Management Camas, Washington $348B AUM 26.9% 1-Year Est. Return

Amundi Paris, France $496B AUM 35.36% 1-Year Est. Return

Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return

Deutsche Bank Frankfurt Am Main Ge, Germany $362B AUM 34.89% 1-Year Est. Return

Bank of Montreal Toronto, Ontario, Canada $313B AUM 26.62% 1-Year Est. Return

Mitsubishi UFJ Asset Management Tokyo, Japan $194B AUM 32.2% 1-Year Est. Return

Principal Financial Group Des Moines, Iowa $195B AUM 21.17% 1-Year Est. Return

LPL Financial San Diego, California $468B AUM 17.69% 1-Year Est. Return

Arlington Trust's COST Position: Q3 2026 in Review

Arlington Trust increased its Costco (COST) stake by 216% in Q3 2026, buying an estimated $1.18M and bringing the position to 1,842 shares worth $1.68M. The position accounts for 0.13% of the portfolio, ranked #34.

Arlington Trust first reported a position in COST in Q4 2023 and has held it in 12 quarters since. The position peaked at $2.84M in Q2 2025. 2,803 funds tracked by Wall St. Rank hold COST as of Q3 2026.

Arlington Trust held 1,842 shares of Costco worth $1.68M as of Q3 2026.
Arlington Trust bought 1,259 Costco shares in Q3 2026, an estimated $1.18M.
Costco made up 0.13% of Arlington Trust's portfolio in Q3 2026, its #34 holding.
Arlington Trust first reported a position in Costco in Q4 2023 and has held it in 12 quarters since.
Arlington Trust's Costco position peaked at $2.84M in Q2 2025.
2,803 funds tracked by Wall St. Rank held Costco as of Q3 2026.

Based on Arlington Trust's 13F filing for Q3 2026, filed 20 Oct 2026.