Cornerstone Wealth Advisors’s Costco COST Stock Holding History

Cornerstone Wealth Advisors’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	$251K	Hold	276	–	–	0.05%	49
2026 Q2	$258K	Hold	276	–	–	0.05%	47
2026 Q1	$275K	Hold	276	–	–	0.06%	40
2025 Q4	$238K	Hold	276	–	–	0.06%	45
2025 Q3	$256K	Sell	276 -66	-19%	-$63.3K	0.06%	42
2025 Q2	$339K	Buy	342 +2	+0.6%	+$1.99K	0.09%	39
2025 Q1	$322K	Hold	340	–	–	0.09%	38
2024 Q4	$312K	Hold	340	–	–	0.09%	42
2024 Q3	$302K	Hold	340	–	–	0.08%	40
2024 Q2	$289K	Buy	+340	New	+$265K	0.09%	41

Other funds holding COST

Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $174B AUM 33.96% 1-Year Est. Return

Everett Harris & Co Los Angeles, California $8.46B AUM 13.48% 1-Year Est. Return

Swedbank Stockholm, Sweden $118B AUM 40.52% 1-Year Est. Return

Emerald Advisors Bellevue, Washington $781M AUM 4.78% 1-Year Est. Return

Parnassus Investments San Francisco, California $33.8B AUM 31.08% 1-Year Est. Return

Assenagon Asset Management Senningerberg, Luxembourg $103B AUM 40.17% 1-Year Est. Return

ProShare Advisors Bethesda, Maryland $69.5B AUM 31.38% 1-Year Est. Return

New York State Teachers Retirement System (NYSTRS) Albany, New York $52.9B AUM 36.03% 1-Year Est. Return

Mirae Asset Global Investments Seoul, South Korea $57B AUM 43.56% 1-Year Est. Return

TD Waterhouse Canada Toronto, Ontario, Canada $38.4B AUM 30.28% 1-Year Est. Return

Cornerstone Wealth Advisors's COST Position: Q3 2026 in Review

Cornerstone Wealth Advisors held its Costco (COST) position steady in Q3 2026 at 276 shares worth $251K. The position accounts for 0.05% of the portfolio, ranked #49.

Cornerstone Wealth Advisors first reported a position in COST in Q2 2024 and has held it in 10 quarters since. The position peaked at $339K in Q2 2025. 1,769 funds tracked by Wall St. Rank hold COST as of Q3 2026.

Cornerstone Wealth Advisors held 276 shares of Costco worth $251K as of Q3 2026.
Cornerstone Wealth Advisors left its Costco share count unchanged in Q3 2026.
Costco made up 0.05% of Cornerstone Wealth Advisors's portfolio in Q3 2026, its #49 holding.
Cornerstone Wealth Advisors first reported a position in Costco in Q2 2024 and has held it in 10 quarters since.
Cornerstone Wealth Advisors's Costco position peaked at $339K in Q2 2025.
1,769 funds tracked by Wall St. Rank held Costco as of Q3 2026.

Based on Cornerstone Wealth Advisors's 13F filing for Q3 2026, filed 16 Oct 2026.