Holocene Advisors’s Costco COST Stock Holding History

Holocene Advisors’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	$133M	Buy	+142,637	New	+$142M	0.3%	87
2025 Q1	–	Sell	-97,000	Closed	-$88.9M	–	764
2024 Q4	$88.9M	Buy	+97,000	New	+$90M	0.28%	105
2022 Q3	–	Sell	-3,275	Closed	-$1.57M	–	820
2022 Q2	$1.57M	Buy	+3,275	New	+$1.66M	0.01%	602
2021 Q2	–	Sell	-83,204	Closed	-$29.3M	–	835
2021 Q1	$29.3M	Buy	+83,204	New	+$29M	0.18%	148
2020 Q4	–	Sell	-7,367	Closed	-$2.62M	–	761
2020 Q3	$2.62M	Buy	+7,367	New	+$2.48M	0.02%	323
2019 Q2	–	Sell	-490,437	Closed	-$119M	–	662
2019 Q1	$119M	Buy	+490,437	New	+$107M	1.82%	12

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

Holocene Advisors's COST Position: Q2 2026 in Review

Holocene Advisors opened a new position in Costco (COST) in Q2 2026: 142,637 shares worth $133M. The stake represents 0.3% of the portfolio and ranks #87 among its holdings. This is a return to the name: Holocene Advisors previously reported a position in COST as recently as Q4 2024.

Holocene Advisors first reported a position in COST in Q1 2019 and has held it in 6 quarters since. 4,247 funds tracked by Wall St. Rank hold COST as of Q2 2026.

Holocene Advisors held 142,637 shares of Costco worth $133M as of Q2 2026.
Costco was a new Holocene Advisors position in Q2 2026.
Costco made up 0.3% of Holocene Advisors's portfolio in Q2 2026, its #87 holding.
Holocene Advisors first reported a position in Costco in Q1 2019 and has held it in 6 quarters since.
4,247 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on Holocene Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.