Cornerstone National Bank & Trust’s Costco COST Stock Holding History

Cornerstone National Bank & Trust’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	$119K	Sell	129 -97	-43%	-$96.6K	0.04%	90
2026 Q1	$225K	Sell	226 -439	-66%	-$428K	0.08%	74
2025 Q4	$573K	Buy	665 +5	+0.8%	+$4.53K	0.23%	55
2025 Q3	$611K	Buy	660 +617	+1,435%	+$591K	0.25%	54
2025 Q2	$42.6K	Hold	43	–	–	0.02%	101
2025 Q1	$40.7K	Hold	43	–	–	0.02%	99
2024 Q4	$39.4K	Hold	43	–	–	0.02%	96
2024 Q3	$38.1K	Buy	+43	New	+$37.3K	0.02%	96

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

Cornerstone National Bank & Trust's COST Position: Q2 2026 in Review

Cornerstone National Bank & Trust reduced its Costco (COST) stake by 43% in Q2 2026, selling an estimated $96.6K and leaving 129 shares worth $119K. The position accounts for 0.04% of the portfolio, ranked #90.

Cornerstone National Bank & Trust first reported a position in COST in Q3 2024 and has held it in 8 quarters since. The position peaked at $611K in Q3 2025. 2,085 funds tracked by Wall St. Rank hold COST as of Q2 2026.

Cornerstone National Bank & Trust held 129 shares of Costco worth $119K as of Q2 2026.
Cornerstone National Bank & Trust sold 97 Costco shares in Q2 2026, an estimated $96.6K.
Costco made up 0.04% of Cornerstone National Bank & Trust's portfolio in Q2 2026, its #90 holding.
Cornerstone National Bank & Trust first reported a position in Costco in Q3 2024 and has held it in 8 quarters since.
Cornerstone National Bank & Trust's Costco position peaked at $611K in Q3 2025.
2,085 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on Cornerstone National Bank & Trust's 13F filing for Q2 2026, filed 21 Jul 2026.