COLUMBIA BANKING SYSTEM, INC. (COLB) — Institutional Holders, Q2 2026

559 institutional investment managers reported a COLB position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $8.6B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← COLB stock profile

COLB in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

Added to

183

Trimmed

200

Sold out

Biggest buyers

MACKENZIE FINANCIALAdded · +2,042,060 sh+$65.4M
GOLDMAN SACHS GROUPAdded · +1,228,813 sh+$39.4M
Azora CapitalNew · +1,028,488 sh+$33.0M
PRICE T ROWE ASSOCIATESAdded · +905,586 sh+$29.0M
D. E. ShawNew · +897,711 sh+$28.8M

Biggest sellers

Bank of New York MellonTrimmed · -3,640,551 sh-$116.7M
WELLINGTON MANAGEMENT GROUP LLPTrimmed · -3,257,845 sh-$104.4M
CITADEL ADVISORSSold out · -3,173,756 sh-$101.7M
Channing Capital ManagementTrimmed · -2,880,585 sh-$92.3M
AMERICAN CENTURY COMPANIESTrimmed · -1,832,490 sh-$58.7M

COLB 13F holders ranked 1–100 of 559

Institutional investors reporting a position in COLUMBIA BANKING SYSTEM, INC. on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	BlackRock#1 · 27,470,920 sh	27,470,920	$880.4M	0.01%	+1.5%
2	T. Rowe Price Investment Management#2 · 15,633,948 sh	15,633,948	$501.1M	0.33%	-1.8%
3	DIMENSIONAL FUND ADVISORS#3 · 13,906,292 sh	13,906,292	$445.7M	0.08%	+2.6%
4	VANGUARD PORTFOLIO MANAGEMENT#4 · 13,678,183 sh	13,678,183	$438.4M	0.02%	-4.6%
5	VANGUARD CAPITAL MANAGEMENT#5 · 13,072,525 sh	13,072,525	$419.0M	<0.01%	-1.2%
6	STATE STREET#6 · 12,694,096 sh	12,694,096	$406.8M	0.01%	+1.7%
7	WELLINGTON MANAGEMENT GROUP LLP#7 · 11,686,430 sh	11,686,430	$374.6M	0.06%	-21.8%
8	CHARLES SCHWAB INVESTMENT MANAGEMENT#8 · 11,025,378 sh	11,025,378	$353.4M	0.05%	+5.6%
9	PRICE T ROWE ASSOCIATES#9 · 9,879,006 sh	9,879,006	$316.6M	0.03%	+10.1%
10	AMERICAN CENTURY COMPANIES#10 · 7,903,579 sh	7,903,579	$253.3M	0.11%	-18.8%
11	FRANKLIN RESOURCES#11 · 6,101,719 sh	6,101,719	$195.6M	0.04%	-1.4%
12	MASSACHUSETTS FINANCIAL SERVICES#12 · 5,958,440 sh	5,958,440	$193.0M	0.06%	-1.1%
13	GEODE CAPITAL MANAGEMENT#13 · 5,795,510 sh	5,795,510	$185.8M	<0.01%	-1.2%
14	HoldCo Asset Management#14 · 5,722,786 sh	5,722,786	$183.4M	11.77%	0.0%
15	Invesco Ltd.#15 · 4,686,223 sh	4,686,223	$150.2M	0.01%	+14.4%
16	SILVERCREST ASSET MANAGEMENT GROUP#16 · 4,005,647 sh	4,005,647	$128.4M	0.84%	-3.4%
17	MORGAN STANLEY#17 · 3,816,175 sh	3,816,175	$122.3M	<0.01%	-22.2%
18	NOMURA ASSET MANAGEMENT INTERNATIONAL#18 · 3,807,940 sh	3,807,940	$122.0M	0.18%	-2.4%
19	Bank of New York Mellon#19 · 3,771,212 sh	3,771,212	$120.9M	0.02%	-49.1%
20	MACKENZIE FINANCIAL#20 · 3,176,857 sh	3,176,857	$101.8M	0.10%	+179.9%
21	Epoch Investment Partners#21 · 3,143,704 sh	3,143,704	$100.8M	0.57%	+24.2%
22	NORGES BANK#22 · 2,966,686 sh	2,966,686	$95.1M	<0.01%	—
23	UBS Group AG#23 · 2,636,227 sh	2,636,227	$84.5M	0.01%	-25.2%
24	NORTHERN#24 · 2,611,337 sh	2,611,337	$83.7M	<0.01%	-0.1%
25	GOLDMAN SACHS GROUP#25 · 2,571,314 sh	2,571,314	$82.4M	<0.01%	+91.5%
26	Fisher Asset Management#26 · 2,481,754 sh	2,481,754	$79.5M	0.02%	+6.9%
27	MANUFACTURERS LIFE INSURANCE COMPANY, THE#27 · 2,149,943 sh	2,149,943	$68.9M	0.05%	+3.8%
28	PZENA INVESTMENT MANAGEMENT#28 · 2,129,322 sh	2,129,322	$68.2M	0.20%	+4.7%
29	FIRST ADVISORS#29 · 1,978,842 sh	1,978,842	$63.4M	0.04%	+64.5%
30	VANGUARD FIDUCIARY#30 · 1,831,172 sh	1,831,172	$58.7M	0.01%	-0.3%
31	VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.#31 · 1,713,172 sh	1,713,172	$54.9M	0.49%	+39.0%
32	COOKE & BIELER#32 · 1,500,913 sh	1,500,913	$48.1M	—	-30.3%
33	BANK OF AMERICA#33 · 1,407,290 sh	1,407,290	$45.1M	<0.01%	-3.0%
34	Quantinno Capital Management#34 · 1,323,768 sh	1,323,768	$42.4M	0.05%	+24.1%
35	SYSTEMATIC FINANCIAL MANAGEMENT#35 · 1,289,296 sh	1,289,296	$41.3M	0.82%	-3.9%
36	BNP Paribas Asset Management Holding S.A.#36 · 1,171,343 sh	1,171,343	$37.5M	0.04%	-0.6%
37	JPMORGAN CHASE#37 · 1,111,048 sh	1,111,048	$36.0M	<0.01%	+34.1%
38	Stieven Capital Advisors, L.P.#38 · 1,071,732 sh	1,071,732	$34.3M	6.56%	-9.6%
39	Azora Capital#39 · 1,028,488 sh	1,028,488	$33.0M	1.39%	New
40	RAYMOND JAMES FINANCIAL#40 · 1,012,894 sh	1,012,894	$32.5M	<0.01%	+27.7%
41	LSV ASSET MANAGEMENT#41 · 980,784 sh	980,784	$31.4M	0.06%	0.0%
42	BALYASNY ASSET MANAGEMENT L.P.#42 · 913,570 sh	913,570	$29.3M	0.04%	-28.6%
43	D. E. Shaw#43 · 897,711 sh	897,711	$28.8M	0.01%	New
44	EASTERLY INVESTMENT PARTNERS#44 · 884,032 sh	884,032	$28.3M	1.44%	+21.9%
45	Leeward Investments, - MA#45 · 861,441 sh	861,441	$27.6M	—	-2.2%
46	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#46 · 842,527 sh	842,527	$27.0M	<0.01%	-3.8%
47	TD ASSET MANAGEMENT#47 · 832,559 sh	832,559	$26.7M	0.02%	+74.3%
48	AMERIPRISE FINANCIAL#48 · 828,827 sh	828,827	$26.6M	<0.01%	-2.9%
49	Interval Partners#49 · 782,925 sh	782,925	$25.1M	0.65%	+117.6%
50	JANE STREET GROUP#50 · 772,641 sh	772,641	$24.8M	<0.01%	+430.9%
51	SNYDER CAPITAL MANAGEMENT L P#51 · 768,126 sh	768,126	$24.6M	0.43%	+20.8%
52	Nuveen#52 · 752,591 sh	752,591	$24.1M	<0.01%	-7.8%
53	RHUMBLINE ADVISERS#53 · 751,314 sh	751,314	$24.1M	0.02%	-2.2%
54	rhino investment partners#54 · 748,420 sh	748,420	$24.0M	7.26%	+212.1%
55	PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO#55 · 745,368 sh	745,368	$23.9M	0.08%	0.0%
56	Jain Global#56 · 741,638 sh	741,638	$23.8M	0.09%	+373.9%
57	SEGALL BRYANT & HAMILL#57 · 712,060 sh	712,060	$22.8M	0.27%	New
58	ENVESTNET ASSET MANAGEMENT#58 · 696,988 sh	696,988	$22.3M	<0.01%	+18.1%
59	PRINCIPAL FINANCIAL GROUP#59 · 657,256 sh	657,256	$21.1M	0.01%	-0.3%
60	SEI INVESTMENTS#60 · 633,781 sh	633,781	$20.3M	0.02%	-11.7%
61	Lighthouse Investment Partners#61 · 631,221 sh	631,221	$20.2M	0.55%	-37.2%
62	STIFEL FINANCIAL#62 · 621,452 sh	621,452	$19.9M	0.02%	+5.6%
63	Boston Partners#63 · 603,696 sh	603,696	$19.4M	0.02%	-44.7%
64	Swiss National Bank#64 · 581,893 sh	581,893	$18.6M	<0.01%	-1.7%
65	NEW YORK STATE COMMON RETIREMENT FUND#65 · 577,525 sh	577,525	$18.5M	0.02%	-54.8%
66	CLIFFORD CAPITAL PARTNERS#66 · 569,183 sh	569,183	$18.2M	2.51%	+5.9%
67	NORDEA INVESTMENT MANAGEMENT AB#67 · 496,928 sh	496,928	$15.9M	0.01%	-0.6%
68	ROYAL BANK OF CANADA#68 · 486,054 sh	486,054	$15.6M	<0.01%	+1.2%
69	CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM#69 · 477,743 sh	477,743	$15.3M	<0.01%	-9.2%
70	Universal- Beteiligungs- und Servicegesellschaft mbH#70 · 467,363 sh	467,363	$15.0M	0.02%	-2.5%
71	Bridgewater Associates#71 · 466,337 sh	466,337	$14.9M	0.06%	+16.6%
72	PALISADE CAPITAL MANAGEMENT#72 · 457,050 sh	457,050	$14.6M	0.64%	-53.8%
73	Clearbridge Investments#73 · 433,243 sh	433,243	$13.9M	0.01%	+0.2%
74	Aristotle Capital Boston#74 · 420,721 sh	420,721	$13.5M	0.90%	-16.6%
75	STATE OF WISCONSIN INVESTMENT BOARD#75 · 417,635 sh	417,635	$13.4M	0.03%	+6.8%
76	BARCLAYS PLC#76 · 416,542 sh	416,542	$13.4M	<0.01%	-19.1%
77	Ceredex Value Advisors#77 · 413,000 sh	413,000	$13.2M	0.37%	-20.1%
78	Legal & General Group Plc#78 · 407,151 sh	407,151	$13.0M	<0.01%	+4.2%
79	MALTESE CAPITAL MANAGEMENT#79 · 387,000 sh	387,000	$12.4M	2.26%	+13.1%
80	NATIXIS ADVISORS#80 · 385,139 sh	385,139	$12.3M	0.01%	+34.0%
81	First Eagle Investment Management#81 · 384,600 sh	384,600	$12.3M	0.02%	+67.9%
82	RENAISSANCE TECHNOLOGIES#82 · 384,544 sh	384,544	$12.3M	0.02%	+172.0%
83	BW Gestao de Investimentos Ltda.#83 · 379,933 sh	379,933	$12.2M	0.24%	-5.0%
84	Phocas Financial#84 · 353,629 sh	353,629	$11.3M	1.57%	-5.1%
85	XTX Topco Ltd#85 · 350,389 sh	350,389	$11.2M	0.15%	+738.6%
86	Carlson Capital, L.P.#86 · 347,529 sh	347,529	$11.1M	2.25%	+422.5%
87	Channing Capital Management#87 · 344,762 sh	344,762	$11.0M	0.25%	-89.3%
88	ALLIANCEBERNSTEIN L.P.#88 · 392,715 sh	392,715	$10.8M	<0.01%	-3.9%
89	Creative Planning#89 · 333,801 sh	333,801	$10.7M	<0.01%	+25.4%
90	Gilman Hill Asset Management#90 · 324,479 sh	324,479	$10.4M	—	+1.4%
91	IEQ CAPITAL#91 · 320,277 sh	320,277	$10.3M	0.05%	-26.7%
92	HUNTINGTON NATIONAL BANK#92 · 312,065 sh	312,065	$10.0M	0.05%	-5.0%
93	NEW YORK STATE TEACHERS RETIREMENT SYSTEM#93 · 311,926 sh	311,926	$10.0M	—	+0.6%
94	ZWJ INVESTMENT COUNSEL#94 · 311,681 sh	311,681	$10.0M	—	+8.2%
95	GABELLI FUNDS#95 · 310,018 sh	310,018	$9.9M	0.06%	+7.9%
96	Brevan Howard Capital Management#96 · 308,212 sh	308,212	$9.9M	0.07%	-34.2%
97	SUSQUEHANNA FUNDAMENTAL INVESTMENTS#97 · 303,329 sh	303,329	$9.7M	0.18%	+1039.6%
98	Retirement Systems of Alabama#98 · 299,414 sh	299,414	$9.6M	0.03%	-17.3%
99	VANGUARD ASSET MANAGEMENT, Ltd#99 · 278,682 sh	278,682	$8.9M	<0.01%	+4.6%
100	MOODY ALDRICH PARTNERS#100 · 261,163 sh	261,163	$8.4M	1.50%	-20.2%

Funds that sold out of COLB in Q2 2026 (47)

Held COLB at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held COLB in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
CITADEL ADVISORS3,173,756 sh	3,173,756	$87.1M
Capital World Investors1,063,800 sh	1,063,800	$29.2M
MILLENNIUM MANAGEMENT550,608 sh	550,608	$15.1M
Point72 Asset Management, L.P.365,093 sh	365,093	$10.0M
ArrowMark Colorado264,900 sh	264,900	$7.3M
Stratos Wealth Partners, LTD.109,584 sh	109,584	$3.0M
LANDSCAPE CAPITAL MANAGEMENT, L.L.C.95,469 sh	95,469	$2.6M
ALLSTATE91,249 sh	91,249	$2.5M
Elo Mutual Pension Insurance77,377 sh	77,377	$2.1M
Weiss Asset Management72,240 sh	72,240	$2.0M
Arete Wealth Advisors14,423 sh	14,423	$1.8M
AMG National Bank64,378 sh	64,378	$1.8M
Qube Research & Technologies Ltd45,290 sh	45,290	$1.2M
Persistent Asset Partners Ltd42,096 sh	42,096	$1.2M
Henshaw Capital34,805 sh	34,805	$954.7K
FIDEURAM - INTESA SANPAOLO PRIVATE BANKING S.P.A.33,959 sh	33,959	$931.5K
Toroso Investments19,497 sh	19,497	$534.8K
Carnegie Investment Counsel15,800 sh	15,800	$433.4K
GTS SECURITIES14,175 sh	14,175	$388.8K
Rice Partnership13,194 sh	13,194	$361.9K
Abacus Wealth Partners11,553 sh	11,553	$316.9K
O'SHAUGHNESSY ASSET MANAGEMENT11,319 sh	11,319	$310.5K
ARS Investment Partners10,044 sh	10,044	$275.5K
Catalyst Funds Management Pty Ltd9,377 sh	9,377	$257.2K
Pallas Capital Advisors9,349 sh	9,349	$256.4K
Sepio Capital9,184 sh	9,184	$251.9K
DARK FOREST CAPITAL MANAGEMENT8,278 sh	8,278	$227.1K
Sagewood Asset Management8,259 sh	8,259	$226.5K
DAVIDSON INVESTMENT ADVISORS8,800 sh	8,800	$219.5K
Qsemble Capital Management7,710 sh	7,710	$211.5K
Annis Gardner Whiting Capital Advisors4,869 sh	4,869	$133.6K
Advisory Services Network3,659 sh	3,659	$100.4K
Ancora Advisors2,142 sh	2,142	$58.8K
MBM WEALTH CONSULTANTS1,790 sh	1,790	$49.1K
Root Financial Partners750 sh	750	$20.6K
TWIN PEAKS WEALTH ADVISORS551 sh	551	$15.1K
Innovative Asset Advisors Group438 sh	438	$12.0K
TORONTO DOMINION BANK384 sh	384	$11.0K
Wall Street Financial Group291 sh	291	$8.0K
Sound Income Strategies183 sh	183	$5.1K
Riverview96 sh	96	$2.6K
Vermillion Wealth Management23 sh	23	$631.00
Whipplewood Advisors12 sh	12	$329.00
Caitong International Asset Management , Ltd10 sh	10	$274.00
Intentional Wealth Strategies10 sh	10	$274.00
CURIO WEALTH8 sh	8	$219.00
Quaker Wealth Management1 sh	1	$28.00

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.