CenterStar Asset Management’s Costco COST Stock Holding History

CenterStar 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 Q1	–	Sell	-1,300	Closed	-$1.12M	–	493
2025 Q4	$1.12M	Buy	+1,300	New	+$1.18M	0.32%	74
2023 Q3	–	Sell	-2,100	Closed	-$1.13M	–	345
2023 Q2	$1.13M	Sell	2,100 -400	-16%	-$202K	0.12%	104
2023 Q1	$1.24M	Buy	+2,500	New	+$1.23M	0.46%	55
2022 Q4	–	Hold	0	–	–	–	60
2022 Q3	–	Hold	0	–	–	–	70
2022 Q2	–	Hold	0	–	-$816K	–	455
2022 Q1	–	Hold	0	–	–	–	271
2021 Q1	–	Hold	0	–	-$86K	–	707
2020 Q4	–	Hold	0	–	–	–	615
2020 Q1	–	Hold	0	–	-$2K	–	782
2019 Q4	–	Hold	0	–	–	–	430
2019 Q3	–	Hold	0	–	–	–	214
2018 Q3	–	Hold	0	–	-$4K	–	828
2018 Q2	–	Hold	0	–	–	–	682
2018 Q1	–	Hold	0	–	–	–	508
2017 Q4	–	Hold	0	–	–	–	232

Other funds holding COST

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

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

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

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

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

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

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

DAM

Diamant Asset Management Ridgefield, Connecticut $147M AUM 25.76% 1-Year Est. Return

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

CenterStar Asset Management's COST Position: Q4 2025 in Review

CenterStar Asset Management sold out of Costco (COST) in Q4 2025, closing a stake of 791 shares — an estimated $717K sold.

CenterStar Asset Management first reported a position in COST in Q2 2023 and held it in 2 quarters. The position peaked at $811K in Q2 2023. 4,114 funds tracked by Wall St. Rank hold COST as of Q4 2025.

CenterStar Asset Management reported no remaining Costco position as of Q4 2025 after selling out during the quarter.
CenterStar Asset Management sold 791 Costco shares in Q4 2025, an estimated $717K.
CenterStar Asset Management first reported a position in Costco in Q2 2023 and held it in 2 quarters.
CenterStar Asset Management's Costco position peaked at $811K in Q2 2023.
4,114 funds tracked by Wall St. Rank held Costco as of Q4 2025.

Based on CenterStar Asset Management's 13F filing for Q4 2025, filed 27 Jan 2026.