Sierra Ocean’s Costco COST Stock Holding History

Sierra Ocean’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	$427K	Buy	457 +126	+38%	+$126K	0.3%	38
2026 Q1	$330K	Buy	331 +32	+11%	+$31.2K	0.27%	37
2025 Q4	$258K	Sell	299 -76	-20%	-$68.9K	0.21%	47
2025 Q3	$347K	Sell	375 -218	-37%	-$209K	0.29%	40
2025 Q2	$588K	Buy	593 +14	+2%	+$13.9K	0.42%	25
2025 Q1	$548K	Sell	579 -9	-2%	-$8.78K	0.43%	24
2024 Q4	$539K	Buy	+588	New	+$546K	0.44%	23

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

Sierra Ocean's COST Position: Q2 2026 in Review

Sierra Ocean increased its Costco (COST) stake by 38% in Q2 2026, buying an estimated $126K and bringing the position to 457 shares worth $427K. The position accounts for 0.3% of the portfolio, ranked #38.

Sierra Ocean first reported a position in COST in Q4 2024 and has held it in 7 quarters since. The position peaked at $588K in Q2 2025. 4,228 funds tracked by Wall St. Rank hold COST as of Q2 2026.

Sierra Ocean held 457 shares of Costco worth $427K as of Q2 2026.
Sierra Ocean bought 126 Costco shares in Q2 2026, an estimated $126K.
Costco made up 0.3% of Sierra Ocean's portfolio in Q2 2026, its #38 holding.
Sierra Ocean first reported a position in Costco in Q4 2024 and has held it in 7 quarters since.
Sierra Ocean's Costco position peaked at $588K in Q2 2025.
4,228 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on Sierra Ocean's 13F filing for Q2 2026, filed 7 Aug 2026.