State of Wisconsin Investment Board
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State of Wisconsin Investment Board’s Columbia Banking Systems COLB Stock Holding History

State of Wisconsin Investment Board’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 		$13.4M Buy
417,635
+26,547
+7% +$788K 0.03% 539
2026
Q1 		$10.7M Buy
391,088
+23,169
+6% +$670K 0.02% 632
2025
Q4 		$10.3M Buy
367,919
+50,796
+16% +$1.38M 0.02% 665
2025
Q3 		$8.16M Buy
317,123
+113,912
+56% +$2.89M 0.02% 738
2025
Q2 		$4.75M Sell
203,211
-8,533
-4% -$198K 0.01% 952
2025
Q1 		$5.28M Buy
211,744
+501
+0.2% +$13.3K 0.01% 904
2024
Q4 		$5.71M Buy
211,243
+1,434
+0.7% +$41.1K 0.01% 891
2024
Q3 		$5.48M Hold
209,809
– – 0.01% 917
2024
Q2 		$4.17M Sell
209,809
-10,945
-5% -$208K 0.01% 1004
2024
Q1 		$4.27M Sell
220,754
-10,239
-4% -$211K 0.01% 1004
2023
Q4 		$6.16M Buy
230,993
+9,317
+4% +$207K 0.02% 891
2023
Q3 		$4.5M Sell
221,676
-15,449
-7% -$322K 0.01% 970
2023
Q2 		$4.81M Buy
237,125
+14,084
+6% +$297K 0.01% 985
2023
Q1 		$4.78M Buy
223,041
+167,238
+300% +$4.64M 0.01% 983
2022
Q4 		$1.68M Buy
55,803
+15,343
+38% +$487K 0.01% 1361
2022
Q3 		$1.17M Sell
40,460
-5,116
-11% -$154K ﹤0.01% 1482
2022
Q2 		$1.31M Buy
45,576
+30,476
+202% +$898K ﹤0.01% 1501
2022
Q1 		$487K Buy
+15,100
New +$530K ﹤0.01% 1929

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

State of Wisconsin Investment Board's COLB Position: Q2 2026 in Review

State of Wisconsin Investment Board increased its Columbia Banking Systems (COLB) stake by 6.8% in Q2 2026, buying an estimated $788K and bringing the position to 417,635 shares worth $13.4M. The position accounts for 0.03% of the portfolio, ranked #539.

State of Wisconsin Investment Board first reported a position in COLB in Q1 2022 and has held it in 18 quarters since. 551 funds tracked by Wall St. Rank hold COLB as of Q2 2026.

  • State of Wisconsin Investment Board held 417,635 shares of Columbia Banking Systems worth $13.4M as of Q2 2026.
  • State of Wisconsin Investment Board bought 26,547 Columbia Banking Systems shares in Q2 2026, an estimated $788K.
  • Columbia Banking Systems made up 0.03% of State of Wisconsin Investment Board's portfolio in Q2 2026, its #539 holding.
  • State of Wisconsin Investment Board first reported a position in Columbia Banking Systems in Q1 2022 and has held it in 18 quarters since.
  • 551 funds tracked by Wall St. Rank held Columbia Banking Systems as of Q2 2026.

Based on State of Wisconsin Investment Board's 13F filing for Q2 2026, filed 14 Aug 2026.