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 Q2	$1.77M	Sell	1,896 -1,577	-45%	-$1.57M	0.11%	320
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 $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

Dark Forest Capital Management's COST Position: Q2 2026 in Review

Dark Forest Capital Management reduced its Costco (COST) stake by 45% in Q2 2026, selling an estimated $1.57M and leaving 1,896 shares worth $1.77M. The position accounts for 0.11% of the portfolio, ranked #320.

Dark Forest Capital Management first reported a position in COST in Q4 2021 and has held it in 10 quarters since. The position peaked at $3.46M in Q1 2026. 4,238 funds tracked by Wall St. Rank hold COST as of Q2 2026.

Dark Forest Capital Management held 1,896 shares of Costco worth $1.77M as of Q2 2026.
Dark Forest Capital Management sold 1,577 Costco shares in Q2 2026, an estimated $1.57M.
Costco made up 0.11% of Dark Forest Capital Management's portfolio in Q2 2026, its #320 holding.
Dark Forest Capital Management first reported a position in Costco in Q4 2021 and has held it in 10 quarters since.
Dark Forest Capital Management's Costco position peaked at $3.46M in Q1 2026.
4,238 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on Dark Forest Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.