M&T Bank
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M&T Bank’s Columbia Banking Systems COLB Stock Holding History

M&T Bank’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 		$894K Sell
32,598
-4,860
-13% -$141K ﹤0.01% 902
2025
Q4 		$1.05M Buy
37,458
+12,398
+49% +$336K ﹤0.01% 845
2025
Q3 		$645K Buy
25,060
+6,064
+32% +$154K ﹤0.01% 905
2025
Q2 		$444K Sell
18,996
-1,274
-6% -$29.5K ﹤0.01% 1120
2025
Q1 		$506K Buy
20,270
+7,164
+55% +$191K ﹤0.01% 1060
2024
Q4 		$354K Buy
13,106
+1,247
+11% +$35.8K ﹤0.01% 1310
2024
Q3 		$310K Buy
11,859
+1,727
+17% +$41.1K ﹤0.01% 1355
2024
Q2 		$202K Buy
+10,132
New +$193K ﹤0.01% 1473
2024
Q1 		– Sell
-8,313
Closed -$222K – 1620
2023
Q4 		$222K Buy
+8,313
New +$185K ﹤0.01% 1456

Other funds holding COLB

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
Wellington Management Group
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
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Charles Schwab
Charles Schwab San Francisco, California $654B AUM 26.35% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

M&T Bank's COLB Position: Q1 2026 in Review

M&T Bank reduced its Columbia Banking Systems (COLB) stake by 13% in Q1 2026, selling an estimated $141K and leaving 32,598 shares worth $894K. The position accounts for ﹤0.01% of the portfolio, ranked #902.

M&T Bank first reported a position in COLB in Q4 2023 and has held it in 9 quarters since. The position peaked at $1.05M in Q4 2025. 524 funds tracked by Wall St. Rank hold COLB as of Q1 2026.

  • M&T Bank held 32,598 shares of Columbia Banking Systems worth $894K as of Q1 2026.
  • M&T Bank sold 4,860 Columbia Banking Systems shares in Q1 2026, an estimated $141K.
  • Columbia Banking Systems made up ﹤0.01% of M&T Bank's portfolio in Q1 2026, its #902 holding.
  • M&T Bank first reported a position in Columbia Banking Systems in Q4 2023 and has held it in 9 quarters since.
  • M&T Bank's Columbia Banking Systems position peaked at $1.05M in Q4 2025.
  • 524 funds tracked by Wall St. Rank held Columbia Banking Systems as of Q1 2026.

Based on M&T Bank's 13F filing for Q1 2026, filed 12 May 2026.