COLB

Columbia Banking System Inc$33.61 3.19%
FinancialsUSCUSIP 197236102· EOD Jul 16, 2026◍ Confluence graph
Tracked 13F Holders
364
+18 QoQ
13F Value (tracked)
$6.3B
Insider Net · 180d
-$625K
1↑ 3↓
Recent Filings
15
Smart-money sentimentMixed
BearishBullish
13F funds (latest Q)36 adding · 22 trimming
Insider net (180d)-$625K

Price & smart-money activity

$33.61 3.19%5Y -0.2%
$15.94$22.15$28.36$34.56$40.77202120222023202420252026302612442024426446323737235401091925571466864552058696456725975608163847015157911122113902178
Hover for who · click for detailEnd-of-day closing prices52w $23.26 – $33.61
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Ask your agent what changed in COLB

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/COLB/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for COLB.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

Top institutional holders

364 tracked 13F filers
2 source-reported value rows are withheld because the reported units do not agree with same-security peers. Share counts remain visible and unchanged.
#FundPosition valueSharesLast moveAs ofHistory
1BlackRock, Inc.
$742.4M
27.1M
+1.3%
Added · +346K sh
Q1 2026
2T. Rowe Price Investment Management, Inc.
Withheld
15.9M
+0.5%
Added · +85K sh
Q1 2026
3VANGUARD PORTFOLIO MANAGEMENT LLC
$393.3M
14.3M
New
+14.3M sh
Q1 2026
4DIMENSIONAL FUND ADVISORS LP
$371.7M
13.5M
+3.1%
Added · +408K sh
Q1 2026
5VANGUARD CAPITAL MANAGEMENT LLC
$362.8M
13.2M
New
+13.2M sh
Q1 2026
6STATE STREET CORP
$342.2M
12.5M
−2.6%
Reduced · −331K sh
Q1 2026
7CHARLES SCHWAB INVESTMENT MANAGEMENT INC
$286.4M
10.4M
−17%
Reduced · −2.1M sh
Q1 2026
8AMERICAN CENTURY COMPANIES INC
$267.1M
9.7M
+3.1%
Added · +295K sh
Q1 2026
9PRICE T ROWE ASSOCIATES INC /MD/
$246.1M
9.0M
+3.5%
Added · +307K sh
Q1 2026
10Bank of New York Mellon Corp
$203.3M
7.4M
−0.1%
Reduced · −10K sh
Q1 2026
11FRANKLIN RESOURCES INC
$169.7M
6.2M
+4.5%
Added · +268K sh
Q1 2026
12MASSACHUSETTS FINANCIAL SERVICES CO /MA/
$166.8M
6.0M
−6.1%
Reduced · −391K sh
Q1 2026
13GEODE CAPITAL MANAGEMENT, LLC
$160.9M
5.9M
+2.9%
Added · +167K sh
Q1 2026
14HoldCo Asset Management, LP
$157.0M
5.7M
Held
Q1 2026
15MORGAN STANLEY
$134.5M
4.9M
−17%
Reduced · −985K sh
Q1 2026
16SILVERCREST ASSET MANAGEMENT GROUP LLC
$113.8M
4.1M
−3.7%
Reduced · −160K sh
Q1 2026
17NORGES BANK
$103.0M
3.7M
+262%
Added · +2.7M sh
Q4 2025
18UBS Group AG
$96.7M
3.5M
−17%
Reduced · −738K sh
Q1 2026
19Channing Capital Management, LLC
$88.5M
3.2M
−3.2%
Reduced · −106K sh
Q1 2026
20CITADEL ADVISORS LLC
$87.1M
3.2M
+20%
Added · +535K sh
Q1 2026
21NORTHERN TRUST CORP
$71.7M
2.6M
+2.8%
Added · +72K sh
Q1 2026
22Epoch Investment Partners, Inc.
$69.4M
2.5M
−1.6%
Reduced · −42K sh
Q1 2026
23Fisher Asset Management, LLC
$63.7M
2.3M
−7.7%
Reduced · −193K sh
Q1 2026
24COOKE & BIELER LP
$59.0M
2.2M
−4.6%
Reduced · −103K sh
Q1 2026
25MANUFACTURERS LIFE INSURANCE COMPANY, THE
$56.8M
2.1M
+16%
Added · +284K sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Fund activity: latest quarter

Opened (NEW)
3
funds
Added
33
funds
Reduced
22
funds
Exited
0
funds

Insider activity (Form 4)

Full insider page →
Buys · 180d
$22K
1 insiders
Sells · 180d
$647K
3 insiders
Net
-$625K
6 P/S txns
Signal
Net Selling
open-market
DateInsiderRoleActionSharesValue
Jun 30, 2026Deer Aaron JamesEVP Chief Strategy/Innov OffcrBuy (P)886$22K
Jun 15, 2026MACHUCA LUISDirectorGrant (A)563$18K
Jun 8, 2026Moore Devine DavidEVP Chief Marketing OfficerSell (S)60$2K
Jun 8, 2026Moore Devine DavidEVP Chief Marketing OfficerSell (S)4K$114K
May 14, 2026Lund Randal LeeDirectorGrant (A)4K$0
May 14, 2026SEATON ELIZABETH WHITEHEADDirectorGrant (A)4K$0
May 14, 2026Finkelstein Mark ADirectorGrant (A)4K$0
May 14, 2026Terry Hilliard C. IIIDirectorGrant (A)4K$0
May 14, 2026MITCHELL M CHRISTIANDirectorGrant (A)4K$0
May 14, 2026STUDENMUND JAYNIE MDirectorGrant (A)4K$0
May 14, 2026MACHUCA LUISDirectorGrant (A)4K$0
May 14, 2026Varnado AnddriaDirectorGrant (A)4K$0

Institutional ownership over time

359 funds+114 since Q3 2024
0180359Q3 2024Q1 2025Q3 2025Q1 2026
funds holding aggregate valuelatest $6.2B · 1 values withheld

Funds that own COLB also own

CompanyCo-held byCombined value
ALPHABET INC-CL AGOOGL172 funds$38.7B
MICROSOFT CORPMSFT171 funds$57.6B
AMAZON.COM INCAMZN170 funds$42.9B
VISA INC-CLASS A SHARESV170 funds$12.3B
NVIDIA CORPNVDA168 funds$83.3B
META PLATFORMS INC-CLASS AMETA168 funds$28.1B
JPMORGAN CHASE & COJPM168 funds$20.3B
APPLE INCAAPL167 funds$71.9B
BROADCOM INCAVGO166 funds$30.9B
ALPHABET INC-CL CGOOG166 funds$28.5B
CHEVRON CORPCVX166 funds$8.4B
HOME DEPOT INCHD166 funds$7.9B

Ranked by how many of COLB's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).

Recent filings

15 shown

Browse more

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for COLB. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.