XTX Topco’s Costco COST Stock Holding History

XTX Topco’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	$523K	Sell	525 -971	-65%	-$946K	0.01%	2008
2025 Q4	$1.29M	Buy	1,496 +676	+82%	+$613K	0.03%	847
2025 Q3	$759K	Buy	+820	New	+$786K	0.04%	760
2025 Q1	–	Sell	-245	Closed	-$224K	–	2510
2024 Q4	$224K	Sell	245 -821	-77%	-$762K	0.02%	1468
2024 Q3	$945K	Buy	+1,066	New	+$925K	0.07%	448
2024 Q1	–	Sell	-818	Closed	-$540K	–	1908
2023 Q4	$540K	Sell	818 -1,640	-67%	-$972K	0.12%	208
2023 Q3	$1.39M	Buy	2,458 +1,791	+269%	+$989K	0.24%	37
2023 Q2	$359K	Buy	+667	New	+$337K	0.06%	587
2023 Q1	–	Sell	-4,017	Closed	-$1.83M	–	1332
2022 Q4	$1.83M	Buy	4,017 +697	+21%	+$341K	0.39%	11
2022 Q3	$1.57M	Buy	+3,320	New	+$1.73M	0.39%	12
2022 Q2	–	Sell	-1,566	Closed	-$902K	–	891
2022 Q1	$902K	Buy	+1,566	New	+$822K	0.4%	40
2021 Q3	–	Sell	-1,199	Closed	-$474K	–	744
2021 Q2	$474K	Sell	1,199 -906	-43%	-$343K	0.16%	189
2021 Q1	$742K	Buy	+2,105	New	+$733K	0.36%	27

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 $147M AUM 25.76% 1-Year Est. Return

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

XTX Topco's COST Position: Q1 2026 in Review

XTX Topco reduced its Costco (COST) stake by 65% in Q1 2026, selling an estimated $946K and leaving 525 shares worth $523K. The position accounts for 0.01% of the portfolio, ranked #2008.

XTX Topco first reported a position in COST in Q1 2021 and has held it in 13 quarters since. The position peaked at $1.83M in Q4 2022. 4,239 funds tracked by Wall St. Rank hold COST as of Q1 2026.

XTX Topco held 525 shares of Costco worth $523K as of Q1 2026.
XTX Topco sold 971 Costco shares in Q1 2026, an estimated $946K.
Costco made up 0.01% of XTX Topco's portfolio in Q1 2026, its #2008 holding.
XTX Topco first reported a position in Costco in Q1 2021 and has held it in 13 quarters since.
XTX Topco's Costco position peaked at $1.83M in Q4 2022.
4,239 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on XTX Topco's 13F filing for Q1 2026, filed 15 May 2026.