Marin Bay Wealth Advisors’s Costco COST Stock Holding History

Marin Bay 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 Q2	$1.87M	Sell	1,994 -1,495	-43%	-$1.49M	1%	23
2026 Q1	$2.08M	Buy	3,489 +1,264	+57%	+$1.23M	1.25%	21
2025 Q4	$1.92M	Buy	+2,225	New	+$2.02M	1.1%	23

Other funds holding COST

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

Norges Bank Oslo, Norway $1T AUM

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Marin Bay Wealth Advisors's COST Position: Q2 2026 in Review

Marin Bay Wealth Advisors reduced its Costco (COST) stake by 43% in Q2 2026, selling an estimated $1.49M and leaving 1,994 shares worth $1.87M. The position accounts for 1% of the portfolio, ranked #23.

Marin Bay Wealth Advisors first reported a position in COST in Q4 2025 and has held it in 3 quarters since. The position peaked at $2.08M in Q1 2026. 4,224 funds tracked by Wall St. Rank hold COST as of Q2 2026.

Marin Bay Wealth Advisors held 1,994 shares of Costco worth $1.87M as of Q2 2026.
Marin Bay Wealth Advisors sold 1,495 Costco shares in Q2 2026, an estimated $1.49M.
Costco made up 1% of Marin Bay Wealth Advisors's portfolio in Q2 2026, its #23 holding.
Marin Bay Wealth Advisors first reported a position in Costco in Q4 2025 and has held it in 3 quarters since.
Marin Bay Wealth Advisors's Costco position peaked at $2.08M in Q1 2026.
4,224 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on Marin Bay Wealth Advisors's 13F filing for Q2 2026, filed 5 Aug 2026.