Robertson Stephens Wealth Management’s Costco COST Stock Holding History

Robertson Stephens Wealth 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	$17.2M	Sell	18,336 -267	-1%	-$266K	0.42%	41
2026 Q1	$18.5M	Sell	18,603 -86	-0.5%	-$83.8K	0.52%	36
2025 Q4	$16.1M	Buy	18,689 +505	+3%	+$458K	0.42%	44
2025 Q3	$16.8M	Sell	18,184 -3,091	-15%	-$2.96M	0.51%	36
2025 Q2	$21.1M	Buy	21,275 +143	+0.7%	+$142K	0.67%	32
2025 Q1	$20M	Buy	21,132 +7,746	+58%	+$7.55M	0.69%	29
2024 Q4	$12.3M	Buy	13,386 +4,757	+55%	+$4.41M	0.43%	48
2024 Q3	$7.65M	Sell	8,629 -251	-3%	-$218K	0.28%	80
2024 Q2	$7.55M	Buy	8,880 +1,990	+29%	+$1.55M	0.38%	53
2024 Q1	$5.05M	Buy	6,890 +782	+13%	+$558K	0.27%	62
2023 Q4	$4.12M	Buy	+6,108	New	+$3.62M	0.25%	71
2020 Q4	–	Sell	-1,372	Closed	-$487K	–	249
2020 Q3	$487K	Buy	+1,372	New	+$461K	0.12%	136

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

Robertson Stephens Wealth Management's COST Position: Q2 2026 in Review

Robertson Stephens Wealth Management reduced its Costco (COST) stake by 1.4% in Q2 2026, selling an estimated $266K and leaving 18,336 shares worth $17.2M. The position accounts for 0.42% of the portfolio, ranked #41.

Robertson Stephens Wealth Management first reported a position in COST in Q3 2020 and has held it in 12 quarters since. The position peaked at $21.1M in Q2 2025. 4,224 funds tracked by Wall St. Rank hold COST as of Q2 2026.

Robertson Stephens Wealth Management held 18,336 shares of Costco worth $17.2M as of Q2 2026.
Robertson Stephens Wealth Management sold 267 Costco shares in Q2 2026, an estimated $266K.
Costco made up 0.42% of Robertson Stephens Wealth Management's portfolio in Q2 2026, its #41 holding.
Robertson Stephens Wealth Management first reported a position in Costco in Q3 2020 and has held it in 12 quarters since.
Robertson Stephens Wealth Management's Costco position peaked at $21.1M in Q2 2025.
4,224 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on Robertson Stephens Wealth Management's 13F filing for Q2 2026, filed 29 Jul 2026.