XTX Topco’s Columbia Banking Systems COLB Stock Holding History

XTX Topco’s Portfolio COLB Stock Details COLB Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$1.15M	Sell	41,784 -123,109	-75%	-$3.56M	0.02%	1296
2025 Q4	$4.61M	Buy	164,893 +126,084	+325%	+$3.41M	0.12%	155
2025 Q3	$999K	Buy	+38,809	New	+$986K	0.05%	574
2025 Q1	–	Sell	-12,751	Closed	-$344K	–	2504
2024 Q4	$344K	Sell	12,751 -39,545	-76%	-$1.13M	0.03%	1098
2024 Q3	$1.37M	Buy	+52,296	New	+$1.25M	0.1%	293
2024 Q2	–	Sell	-24,158	Closed	-$467K	–	1961
2024 Q1	$467K	Buy	24,158 +974	+4%	+$20K	0.06%	525
2023 Q4	$619K	Buy	+23,184	New	+$515K	0.14%	154
2023 Q3	–	Sell	-29,973	Closed	-$608K	–	1617
2023 Q2	$608K	Buy	+29,973	New	+$633K	0.11%	260

Other funds holding COLB

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 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

Charles Schwab San Francisco, California $654B AUM 26.35% 1-Year Est. Return

American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

XTX Topco's COLB Position: Q1 2026 in Review

XTX Topco reduced its Columbia Banking Systems (COLB) stake by 75% in Q1 2026, selling an estimated $3.56M and leaving 41,784 shares worth $1.15M. The position accounts for 0.02% of the portfolio, ranked #1296.

XTX Topco first reported a position in COLB in Q2 2023 and has held it in 8 quarters since. The position peaked at $4.61M in Q4 2025. 524 funds tracked by Wall St. Rank hold COLB as of Q1 2026.

XTX Topco held 41,784 shares of Columbia Banking Systems worth $1.15M as of Q1 2026.
XTX Topco sold 123,109 Columbia Banking Systems shares in Q1 2026, an estimated $3.56M.
Columbia Banking Systems made up 0.02% of XTX Topco's portfolio in Q1 2026, its #1296 holding.
XTX Topco first reported a position in Columbia Banking Systems in Q2 2023 and has held it in 8 quarters since.
XTX Topco's Columbia Banking Systems position peaked at $4.61M in Q4 2025.
524 funds tracked by Wall St. Rank held Columbia Banking Systems as of Q1 2026.

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