Columbia Banking (COLB) grants 8,002 RSUs to chief credit officer

Rhea-AI Filing Summary

Namdar Frank reported acquisition or exercise transactions in this Form 4 filing.

Columbia Banking System EVP and Chief Credit Officer Frank Namdar reported an equity award and updated deferred compensation holdings. He received a grant of 8,002 restricted stock units at a reference price of $31.24 per unit, increasing his directly held restricted stock units to 16,460.

The restricted stock units were granted on February 18, 2026 and will vest 33.33% per year over three years, providing time-based incentive compensation. Namdar also reported 2,917 units of deferred compensation phantom stock under the company’s deferred compensation plan, which will be settled in cash after his employment ends.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Namdar Frank

Role EVP Chief Credit Officer

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Unit	8,002	$31.24	$250K
holding	Deferred Compensation Phantom Stock	--	--	--

Holdings After Transaction: Restricted Stock Unit — 16,460 shares (Direct); Deferred Compensation Phantom Stock — 2,917 shares (Indirect, Deferred Compensation)

Footnotes (1)

1. Restricted stock units granted 02/18/2026. The grant will vest 33.33% per year over three years. The deferred compensation plan phantom stock was accrued under the Registrant's deferred compensation plan and will be paid in cash in accordance with the terms of the deferred compensation plan following end of the reporting person's employment with the Registrant.

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Namdar Frank

(Last) (First) (Middle)

C/O COLUMBIA BANKING SYSTEM, INC.

1301 A STREET

(Street)

TACOMA WA 98402

(City) (State) (Zip)

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

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

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

3. Date of Earliest Transaction (Month/Day/Year)
02/18/2026

4. 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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Unit	(1)	02/18/2026		A		8,002		(1)	(1)	Common Stock	8,002	$31.24	16,460	D
Deferred Compensation Phantom Stock	(2)							(2)	(2)	Common	2,917		2,917	I	Deferred Compensation

Explanation of Responses:

1. Restricted stock units granted 02/18/2026. The grant will vest 33.33% per year over three years.

2. The deferred compensation plan phantom stock was accrued under the Registrant's deferred compensation plan and will be paid in cash in accordance with the terms of the deferred compensation plan following end of the reporting person's employment with the Registrant.

Remarks:

	/s/ Andrea M. Newburn, Attorney-in-fact	02/20/2026
	** 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 4 (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 insider transaction did Frank Namdar report for Columbia Banking System (COLB)?

Frank Namdar reported receiving an award of 8,002 restricted stock units on February 18, 2026. The filing also updates his holdings in deferred compensation phantom stock units that are part of Columbia Banking System’s deferred compensation plan.

How many restricted stock units did Frank Namdar receive from Columbia Banking System (COLB)?

He received 8,002 restricted stock units as a grant. After this award, his total directly held restricted stock units increased to 16,460, reflecting his equity-based compensation as EVP and Chief Credit Officer at Columbia Banking System.

What is the vesting schedule of Frank Namdar’s new Columbia Banking System (COLB) RSUs?

The restricted stock units granted on February 18, 2026 vest 33.33% per year over three years. This time-based vesting schedule links Namdar’s compensation to continued service with Columbia Banking System over a multi‑year period.

At what reference price were Frank Namdar’s Columbia Banking System (COLB) RSUs granted?

The 8,002 restricted stock units were recorded at $31.24 per unit. This price is used as the reference value in the Form 4 and helps quantify the size of the equity-based award granted to Frank Namdar.

What did the Form 4 disclose about Frank Namdar’s deferred compensation phantom stock at Columbia Banking System (COLB)?

The filing shows 2,917 units of deferred compensation phantom stock accrued under the company’s deferred compensation plan. According to the disclosure, these phantom stock amounts will be paid in cash after the end of Namdar’s employment with Columbia Banking System.

Is Frank Namdar’s Form 4 for Columbia Banking System (COLB) a stock purchase or a compensation award?

The Form 4 reflects a compensation award, not an open-market purchase or sale. The 8,002 units are restricted stock units reported under transaction code A, described as a grant or award acquisition for Frank Namdar.