Gladius Capital Management’s Costco COST Stock Holding History

Gladius Capital 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	$13.8M	Buy	13,800 +2,200	+19%	+$2.14M	0.61%	36
2025 Q4	$10M	Buy	11,600 +5,500	+90%	+$4.98M	0.55%	43
2025 Q3	$5.65M	Buy	+6,100	New	+$5.85M	0.6%	39
2024 Q1	–	Sell	-3,300	Closed	-$2.18M	–	336
2023 Q4	$2.18M	Sell	3,300 -11,400	-78%	-$6.76M	0.34%	59
2023 Q3	$8.3M	Buy	14,700 +10,100	+220%	+$5.57M	0.35%	61
2023 Q2	$2.48M	Buy	4,600 +1,200	+35%	+$607K	0.12%	74
2023 Q1	$1.69M	Buy	+3,400	New	+$1.67M	0.1%	92
2022 Q1	–	Sell	-300	Closed	-$171K	–	280
2021 Q4	$171K	Sell	300 -400	-57%	-$205K	0.01%	200
2021 Q3	$315K	Hold	700	–	–	0.02%	88
2021 Q2	$277K	Sell	700 -3,400	-83%	-$1.29M	0.03%	96
2021 Q1	$1.45M	Buy	4,100 +1,900	+86%	+$661K	0.05%	129
2020 Q4	$829K	Buy	2,200 +300	+16%	+$112K	0.04%	146
2020 Q3	$675K	Buy	+1,900	New	+$639K	0.07%	112

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

Gladius Capital Management's COST Position: Q1 2026 in Review

Gladius Capital Management reduced its Costco (COST) stake by 53% in Q1 2026, selling an estimated $908K and leaving 819 shares worth $816K. The position accounts for 0.04% of the portfolio, ranked #97.

Gladius Capital Management first reported a position in COST in Q4 2018 and has held it in 22 quarters since. The position peaked at $2.55M in Q4 2024. 4,237 funds tracked by Wall St. Rank hold COST as of Q1 2026.

Gladius Capital Management held 819 shares of Costco worth $816K as of Q1 2026.
Gladius Capital Management sold 932 Costco shares in Q1 2026, an estimated $908K.
Costco made up 0.04% of Gladius Capital Management's portfolio in Q1 2026, its #97 holding.
Gladius Capital Management first reported a position in Costco in Q4 2018 and has held it in 22 quarters since.
Gladius Capital Management's Costco position peaked at $2.55M in Q4 2024.
4,237 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on Gladius Capital Management's 13F filing for Q1 2026, filed 7 May 2026.