XT
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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
Q2 		$11.2M Buy
350,389
+308,605
+739% +$9.16M 0.15% 98
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
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Charles Schwab
Charles Schwab San Francisco, California $751B AUM 38.74% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

XTX Topco's COLB Position: Q2 2026 in Review

XTX Topco increased its Columbia Banking Systems (COLB) stake by 739% in Q2 2026, buying an estimated $9.16M and bringing the position to 350,389 shares worth $11.2M. The position accounts for 0.15% of the portfolio, ranked #98.

XTX Topco first reported a position in COLB in Q2 2023 and has held it in 9 quarters since. 555 funds tracked by Wall St. Rank hold COLB as of Q2 2026.

  • XTX Topco held 350,389 shares of Columbia Banking Systems worth $11.2M as of Q2 2026.
  • XTX Topco bought 308,605 Columbia Banking Systems shares in Q2 2026, an estimated $9.16M.
  • Columbia Banking Systems made up 0.15% of XTX Topco's portfolio in Q2 2026, its #98 holding.
  • XTX Topco first reported a position in Columbia Banking Systems in Q2 2023 and has held it in 9 quarters since.
  • 555 funds tracked by Wall St. Rank held Columbia Banking Systems as of Q2 2026.

Based on XTX Topco's 13F filing for Q2 2026, filed 14 Aug 2026.