Oxford Asset Management’s Costco COST Stock Holding History

Oxford Asset Management’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 Q1	$395K	Sell	396 -1,162	-75%	-$1.13M	0.17%	187
2025 Q4	$1.34M	Buy	1,558 +899	+136%	+$815K	0.49%	41
2025 Q3	$610K	Buy	659 +418	+173%	+$401K	0.2%	153
2025 Q2	$239K	Sell	241 -80	-25%	-$79.5K	0.08%	389
2025 Q1	$304K	Buy	+321	New	+$313K	0.14%	254
2020 Q1	–	Sell	-12,909	Closed	-$3.79M	–	447
2019 Q4	$3.79M	Buy	12,909 +9,053	+235%	+$2.69M	0.11%	202
2019 Q3	$1.11M	Buy	+3,856	New	+$1.09M	0.03%	886

Other funds holding COST

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

DAM

Diamant Asset Management Ridgefield, Connecticut $137B AUM 18.02% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Oxford Asset Management's COST Position: Q1 2026 in Review

Oxford Asset Management reduced its Costco (COST) stake by 75% in Q1 2026, selling an estimated $1.13M and leaving 396 shares worth $395K. The position accounts for 0.17% of the portfolio, ranked #187.

Oxford Asset Management first reported a position in COST in Q3 2019 and has held it in 7 quarters since. The position peaked at $3.79M in Q4 2019. 4,239 funds tracked by Wall St. Rank hold COST as of Q1 2026.

Oxford Asset Management held 396 shares of Costco worth $395K as of Q1 2026.
Oxford Asset Management sold 1,162 Costco shares in Q1 2026, an estimated $1.13M.
Costco made up 0.17% of Oxford Asset Management's portfolio in Q1 2026, its #187 holding.
Oxford Asset Management first reported a position in Costco in Q3 2019 and has held it in 7 quarters since.
Oxford Asset Management's Costco position peaked at $3.79M in Q4 2019.
4,239 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on Oxford Asset Management's 13F filing for Q1 2026, filed 15 May 2026.