Brown Advisory’s Columbia Banking Systems COLB Stock Holding History

Brown Advisory’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	$1.13M	Sell	41,266 -56,673	-58%	-$1.64M	﹤0.01%	811
2025 Q4	$2.74M	Sell	97,939 -8,486	-8%	-$230K	﹤0.01%	623
2025 Q3	$2.74M	Buy	+106,425	New	+$2.7M	﹤0.01%	614
2022 Q1	–	Sell	-7,438	Closed	-$244K	–	1144
2021 Q4	$244K	Buy	+7,438	New	+$258K	﹤0.01%	1111
2019 Q2	–	Sell	-79,954	Closed	-$2.61M	–	1073
2019 Q1	$2.61M	Buy	79,954 +25,259	+46%	+$917K	0.01%	575
2018 Q4	$1.99M	Buy	54,695 +4,088	+8%	+$153K	0.01%	595
2018 Q3	$1.96M	Buy	50,607 +5,851	+13%	+$243K	0.01%	637
2018 Q2	$1.83M	Buy	44,756 +16,276	+57%	+$695K	0.01%	643
2018 Q1	$1.2M	Buy	28,480 +8,644	+44%	+$375K	﹤0.01%	617
2017 Q4	$861K	Buy	19,836 +490	+3%	+$21.4K	﹤0.01%	720
2017 Q3	$814K	Buy	19,346 +3,472	+22%	+$134K	﹤0.01%	708
2017 Q2	$632K	Buy	15,874 +1,879	+13%	+$73.2K	﹤0.01%	786
2017 Q1	$546K	Buy	13,995 +4,530	+48%	+$182K	﹤0.01%	785
2016 Q4	$423K	Sell	9,465 -750	-7%	-$28.3K	﹤0.01%	833
2016 Q3	$334K	Buy	10,215 +2,380	+30%	+$74.4K	﹤0.01%	848
2016 Q2	$220K	Buy	7,835 +1,160	+17%	+$34K	﹤0.01%	951
2016 Q1	$200K	Buy	6,675 +270	+4%	+$7.93K	﹤0.01%	933
2015 Q4	$208K	Buy	+6,405	New	+$214K	﹤0.01%	896

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

Brown Advisory's COLB Position: Q1 2026 in Review

Brown Advisory reduced its Columbia Banking Systems (COLB) stake by 58% in Q1 2026, selling an estimated $1.64M and leaving 41,266 shares worth $1.13M. The position accounts for ﹤0.01% of the portfolio, ranked #811.

Brown Advisory first reported a position in COLB in Q4 2015 and has held it in 18 quarters since. The position peaked at $2.74M in Q3 2025. 524 funds tracked by Wall St. Rank hold COLB as of Q1 2026.

Brown Advisory held 41,266 shares of Columbia Banking Systems worth $1.13M as of Q1 2026.
Brown Advisory sold 56,673 Columbia Banking Systems shares in Q1 2026, an estimated $1.64M.
Columbia Banking Systems made up ﹤0.01% of Brown Advisory's portfolio in Q1 2026, its #811 holding.
Brown Advisory first reported a position in Columbia Banking Systems in Q4 2015 and has held it in 18 quarters since.
Brown Advisory's Columbia Banking Systems position peaked at $2.74M in Q3 2025.
524 funds tracked by Wall St. Rank held Columbia Banking Systems as of Q1 2026.

Based on Brown Advisory's 13F filing for Q1 2026, filed 15 May 2026.