Rainier Family Wealth’s Costco COST Stock Holding History

Rainier Family Wealth’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	$1.3M	Hold	1,393	–	–	0.74%	37
2026 Q1	$1.39M	Buy	1,393 +93	+7%	+$90.6K	0.93%	35
2025 Q4	$1.12M	Buy	1,300 +121	+10%	+$110K	0.84%	27
2025 Q3	$1.09M	Buy	1,179 +192	+19%	+$184K	0.97%	25
2025 Q2	$977K	Buy	987 +59	+6%	+$58.6K	0.98%	27
2025 Q1	$878K	Buy	928 +47	+5%	+$45.8K	1.03%	25
2024 Q4	$807K	Buy	+881	New	+$817K	0.98%	24

Other funds holding COST

Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $175B AUM 40.63% 1-Year Est. Return

Assenagon Asset Management Senningerberg, Luxembourg $80.2B AUM 50.57% 1-Year Est. Return

Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return

Parnassus Investments San Francisco, California $37.4B AUM 35.42% 1-Year Est. Return

Emerald Advisors Bellevue, Washington $796M AUM 2.51% 1-Year Est. Return

New York State Common Retirement Fund Albany, New York $79.3B AUM 43.63% 1-Year Est. Return

PTC

Provident Trust Company Waukesha, Wisconsin $4.77B AUM 29.31% 1-Year Est. Return

Aberdeen Group Edinburgh, United Kingdom $71.2B AUM 41.74% 1-Year Est. Return

Robeco Institutional Asset Management Rotterdam, Netherlands $81.4B AUM 40.71% 1-Year Est. Return

Commonwealth Equity Services Waltham, Massachusetts $79.5B AUM 27.1% 1-Year Est. Return

Rainier Family Wealth's COST Position: Q2 2026 in Review

Rainier Family Wealth held its Costco (COST) position steady in Q2 2026 at 1,393 shares worth $1.3M. The position accounts for 0.74% of the portfolio, ranked #37.

Rainier Family Wealth first reported a position in COST in Q4 2024 and has held it in 7 quarters since. The position peaked at $1.39M in Q1 2026. 2,087 funds tracked by Wall St. Rank hold COST as of Q2 2026.

Rainier Family Wealth held 1,393 shares of Costco worth $1.3M as of Q2 2026.
Rainier Family Wealth left its Costco share count unchanged in Q2 2026.
Costco made up 0.74% of Rainier Family Wealth's portfolio in Q2 2026, its #37 holding.
Rainier Family Wealth first reported a position in Costco in Q4 2024 and has held it in 7 quarters since.
Rainier Family Wealth's Costco position peaked at $1.39M in Q1 2026.
2,087 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on Rainier Family Wealth's 13F filing for Q2 2026, filed 15 Jul 2026.