Tairen Capital’s Costco COST Stock Holding History

Tairen Capital’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
2025 Q2	–	Sell	-250	Closed	-$236K	–	78
2025 Q1	$236K	Buy	+250	New	+$244K	0.02%	87
2020 Q1	–	Sell	-47,300	Closed	-$13.9M	–	20
2019 Q4	$13.9M	Buy	+47,300	New	+$14.1M	2.14%	12

Other funds holding COST

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

Norges Bank Oslo, Norway $935B AUM

Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Tairen Capital's COST Position: Q2 2025 in Review

Tairen Capital sold out of Costco (COST) in Q2 2025, closing a stake of 250 shares — an estimated $236K sold.

Tairen Capital first reported a position in COST in Q4 2019 and held it in 2 quarters. The position peaked at $13.9M in Q4 2019. 4,002 funds tracked by Wall St. Rank hold COST as of Q2 2025.

Tairen Capital reported no remaining Costco position as of Q2 2025 after selling out during the quarter.
Tairen Capital sold 250 Costco shares in Q2 2025, an estimated $236K.
Tairen Capital first reported a position in Costco in Q4 2019 and held it in 2 quarters.
Tairen Capital's Costco position peaked at $13.9M in Q4 2019.
4,002 funds tracked by Wall St. Rank held Costco as of Q2 2025.

Based on Tairen Capital's 13F filing for Q2 2025, filed 12 Aug 2025.