Dark Forest Capital Management’s Costco COST Stock Holding History

Dark Forest 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	$3.46M	Buy	3,473 +2,755	+384%	+$2.68M	0.31%	68
2025 Q4	$619K	Buy	+718	New	+$651K	0.03%	773
2025 Q3	–	Sell	-809	Closed	-$801K	–	1213
2025 Q2	$801K	Buy	809 +286	+55%	+$284K	0.03%	807
2025 Q1	$495K	Buy	523 +240	+85%	+$234K	0.02%	929
2024 Q4	$259K	Sell	283 -838	-75%	-$778K	0.04%	720
2024 Q3	$994K	Buy	+1,121	New	+$973K	0.13%	172
2023 Q1	–	Sell	-15	Closed	-$6.85K	–	1215
2022 Q4	$6.85K	Sell	15 -15	-50%	-$7.33K	﹤0.01%	813
2022 Q3	$14K	Buy	+30	New	+$15.6K	﹤0.01%	675
2022 Q1	–	Sell	-6	Closed	-$3K	–	1356
2021 Q4	$3K	Buy	+6	New	+$3.07K	﹤0.01%	1255

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

Dark Forest Capital Management's COST Position: Q1 2026 in Review

Dark Forest Capital Management increased its Costco (COST) stake by 384% in Q1 2026, buying an estimated $2.68M and bringing the position to 3,473 shares worth $3.46M. The position accounts for 0.31% of the portfolio, ranked #68.

Dark Forest Capital Management first reported a position in COST in Q4 2021 and has held it in 9 quarters since. 4,236 funds tracked by Wall St. Rank hold COST as of Q1 2026.

Dark Forest Capital Management held 3,473 shares of Costco worth $3.46M as of Q1 2026.
Dark Forest Capital Management bought 2,755 Costco shares in Q1 2026, an estimated $2.68M.
Costco made up 0.31% of Dark Forest Capital Management's portfolio in Q1 2026, its #68 holding.
Dark Forest Capital Management first reported a position in Costco in Q4 2021 and has held it in 9 quarters since.
4,236 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on Dark Forest Capital Management's 13F filing for Q1 2026, filed 15 May 2026.