Plum Street Advisors’s Costco COST Stock Holding History

Plum Street 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 Q1	$879K	Sell	882 -4	-0.5%	-$3.9K	0.3%	53
2025 Q4	$764K	Hold	886	–	–	0.27%	59
2025 Q3	$820K	Hold	886	–	–	0.32%	55
2025 Q2	$877K	Buy	886 +12	+1%	+$11.9K	0.39%	47
2025 Q1	$827K	Hold	874	–	–	0.4%	48
2024 Q4	$801K	Buy	874 +62	+8%	+$57.5K	0.4%	49
2024 Q3	$720K	Buy	+812	New	+$705K	0.36%	47
2024 Q2	–	Sell	-812	Closed	-$720K	–	69
2024 Q1	$720K	Buy	+812	New	+$580K	0.36%	47

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

Plum Street Advisors's COST Position: Q1 2026 in Review

Plum Street Advisors reduced its Costco (COST) stake by 0.45% in Q1 2026, selling an estimated $3.9K and leaving 882 shares worth $879K. The position accounts for 0.3% of the portfolio, ranked #53.

Plum Street Advisors first reported a position in COST in Q1 2024 and has held it in 8 quarters since. 4,239 funds tracked by Wall St. Rank hold COST as of Q1 2026.

Plum Street Advisors held 882 shares of Costco worth $879K as of Q1 2026.
Plum Street Advisors sold 4 Costco shares in Q1 2026, an estimated $3.9K.
Costco made up 0.3% of Plum Street Advisors's portfolio in Q1 2026, its #53 holding.
Plum Street Advisors first reported a position in Costco in Q1 2024 and has held it in 8 quarters since.
4,239 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on Plum Street Advisors's 13F filing for Q1 2026, filed 14 May 2026.