Columbia Banking (NASDAQ: COLB) director files Form 3 reporting no owned shares

Rhea-AI Filing Summary

Columbia Banking System, Inc. director Steven R. Gardner filed an initial ownership report stating that he does not beneficially own any shares or derivative securities of the company as of the reported date. This Form 3 establishes his insider status while confirming that he currently holds no reportable equity position in Columbia Banking System, Inc.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

GARDNER STEVEN R

(Last) (First) (Middle)

C/O COLUMBIA BANKING SYSTEM, INC.

1301 A STREET

(Street)

TACOMA WA 98402

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
08/31/2025

3. Issuer Name and Ticker or Trading Symbol
COLUMBIA BANKING SYSTEM, INC. [ COLB ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

No securities are beneficially owned.

	/s/ Lisa M. White, Attorney-in-fact	09/03/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What does the Form 3 filing for COLB report about Steven R. Gardner?

The Form 3 shows that director Steven R. Gardner has no securities beneficially owned in Columbia Banking System, Inc. as of the event date.

What is Steven R. Gardner’s relationship to Columbia Banking System, Inc. (COLB)?

Steven R. Gardner is reported as a director of Columbia Banking System, Inc. and is not listed as an officer or 10% owner.

Are any Columbia Banking System (COLB) shares or options reported as owned on this Form 3?

No. The remarks state that no securities are beneficially owned, and both non-derivative and derivative security tables show no holdings.

Does this COLB Form 3 include any recent insider transactions?

No. The insider filing data lists no transactions; it only records that the reporting person currently has no beneficial ownership.

Why is a Form 3 filed if no COLB securities are owned?

Form 3 is required when someone becomes an insider, such as a director. It must be filed even if the individual initially owns no reportable securities.

Who signed the COLB Form 3 and in what capacity?

The Form 3 is signed by /s/ Lisa M. White as attorney-in-fact for the reporting person, on the stated signature date.