Alta Advisers’s Costco COST Stock Holding History

Alta Advisers’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	$1.66M	Hold	1,666	–	–	0.6%	21
2025 Q4	$1.44M	Sell	1,666 -600	-26%	-$544K	0.52%	26
2025 Q3	$2.1M	Hold	2,266	–	–	0.64%	24
2025 Q2	$2.24M	Buy	2,266 +80	+4%	+$79.5K	0.8%	21
2025 Q1	$2.07M	Buy	2,186 +725	+50%	+$707K	0.88%	20
2024 Q4	$1.34M	Buy	1,461 +261	+22%	+$242K	0.85%	20
2024 Q3	$1.06M	Hold	1,200	–	–	0.49%	23
2024 Q2	$1.02M	Hold	1,200	–	–	0.49%	21
2024 Q1	$879K	Buy	1,200 +100	+9%	+$71.4K	0.44%	24
2023 Q4	$726K	Hold	1,100	–	–	0.39%	26
2023 Q3	$621K	Hold	1,100	–	–	0.36%	27
2023 Q2	$592K	Hold	1,100	–	–	0.33%	28
2023 Q1	$547K	Hold	1,100	–	–	0.33%	30
2022 Q4	$502K	Hold	1,100	–	–	0.3%	32
2022 Q3	$519K	Buy	+1,100	New	+$572K	0.33%	30

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 $137B AUM 18.02% 1-Year Est. Return

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

Alta Advisers's COST Position: Q1 2026 in Review

Alta Advisers held its Costco (COST) position steady in Q1 2026 at 1,666 shares worth $1.66M. The position accounts for 0.6% of the portfolio, ranked #21.

Alta Advisers first reported a position in COST in Q3 2022 and has held it in 15 quarters since. The position peaked at $2.24M in Q2 2025. 4,236 funds tracked by Wall St. Rank hold COST as of Q1 2026.

Alta Advisers held 1,666 shares of Costco worth $1.66M as of Q1 2026.
Alta Advisers left its Costco share count unchanged in Q1 2026.
Costco made up 0.6% of Alta Advisers's portfolio in Q1 2026, its #21 holding.
Alta Advisers first reported a position in Costco in Q3 2022 and has held it in 15 quarters since.
Alta Advisers's Costco position peaked at $2.24M in Q2 2025.
4,236 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on Alta Advisers's 13F filing for Q1 2026, filed 7 May 2026.