Bayban’s Costco COST Stock Holding History

Bayban’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 -20	-4%	-$19.9K	0.4%	47
2026 Q1	$569K	Buy	571 +169	+42%	+$165K	0.49%	45
2025 Q4	$347K	Buy	+402	New	+$364K	0.31%	67

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

Norges Bank Oslo, Norway $1T AUM

Northern Trust Chicago, Illinois $860B AUM 41.15% 1-Year Est. Return

Royal Bank of Canada Toronto, Ontario, Canada $672B AUM 33.48% 1-Year Est. Return

Bayban's COST Position: Q2 2026 in Review

Bayban reduced its Costco (COST) stake by 3.5% in Q2 2026, selling an estimated $19.9K and leaving 551 shares worth $515K. The position accounts for 0.4% of the portfolio, ranked #47.

Bayban first reported a position in COST in Q4 2025 and has held it in 3 quarters since. The position peaked at $569K in Q1 2026. 4,065 funds tracked by Wall St. Rank hold COST as of Q2 2026.

Bayban held 551 shares of Costco worth $515K as of Q2 2026.
Bayban sold 20 Costco shares in Q2 2026, an estimated $19.9K.
Costco made up 0.4% of Bayban's portfolio in Q2 2026, its #47 holding.
Bayban first reported a position in Costco in Q4 2025 and has held it in 3 quarters since.
Bayban's Costco position peaked at $569K in Q1 2026.
4,065 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on Bayban's 13F filing for Q2 2026, filed 30 Jul 2026.