Blankinship & Foster’s Costco COST Stock Holding History

Blankinship & Foster’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	$515K	Sell	551 -100	-15%	-$99.6K	0.1%	48
2026 Q1	$649K	Sell	651 -15	-2%	-$14.6K	0.14%	41
2025 Q4	$574K	Sell	666 -5	-0.7%	-$4.53K	0.12%	43
2025 Q3	$621K	Buy	671 +9	+1%	+$8.63K	0.14%	40
2025 Q2	$655K	Sell	662 -62	-9%	-$61.6K	0.15%	39
2025 Q1	$685K	Buy	724 +404	+126%	+$394K	0.17%	37
2024 Q4	$293K	Sell	320 -3	-0.9%	-$2.78K	0.07%	54
2024 Q3	$286K	Hold	323	–	–	0.07%	54
2024 Q2	$275K	Buy	323 +3	+0.9%	+$2.34K	0.07%	54
2024 Q1	$234K	Sell	320 -87	-21%	-$62.1K	0.06%	60
2023 Q4	$269K	Buy	+407	New	+$241K	0.08%	54

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

Blankinship & Foster's COST Position: Q2 2026 in Review

Blankinship & Foster reduced its Costco (COST) stake by 15% in Q2 2026, selling an estimated $99.6K and leaving 551 shares worth $515K. The position accounts for 0.1% of the portfolio, ranked #48.

Blankinship & Foster first reported a position in COST in Q4 2023 and has held it in 11 quarters since. The position peaked at $685K in Q1 2025. 4,247 funds tracked by Wall St. Rank hold COST as of Q2 2026.

Blankinship & Foster held 551 shares of Costco worth $515K as of Q2 2026.
Blankinship & Foster sold 100 Costco shares in Q2 2026, an estimated $99.6K.
Costco made up 0.1% of Blankinship & Foster's portfolio in Q2 2026, its #48 holding.
Blankinship & Foster first reported a position in Costco in Q4 2023 and has held it in 11 quarters since.
Blankinship & Foster's Costco position peaked at $685K in Q1 2025.
4,247 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on Blankinship & Foster's 13F filing for Q2 2026, filed 31 Jul 2026.