Mainsail Asset Management’s Costco COST Stock Holding History

Mainsail Asset Management’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	$208K	Buy	+221	New	+$220K	0.08%	178

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

Mainsail Asset Management's COST Position: Q2 2026 in Review

Mainsail Asset Management opened a new position in Costco (COST) in Q2 2026: 221 shares worth $208K. The stake represents 0.08% of the portfolio and ranks #178 among its holdings.

4,224 funds tracked by Wall St. Rank hold COST as of Q2 2026.

Mainsail Asset Management held 221 shares of Costco worth $208K as of Q2 2026.
Costco was a new Mainsail Asset Management position in Q2 2026.
Costco made up 0.08% of Mainsail Asset Management's portfolio in Q2 2026, its #178 holding.
4,224 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on Mainsail Asset Management's 13F filing for Q2 2026, filed 12 Aug 2026.