Stock awards vest for Columbia Banking (COLB) CEO Clint Stein

Filing Impact

(Very High)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

Columbia Banking, Inc. Chair, President and CEO Clint Stein reported multiple stock transactions dated February 2, 2026 related to performance-based equity awards. He received 28,927 shares of common stock from performance restricted stock units granted on February 21, 2023 and 21,988 shares from units granted on March 15, 2023, both vesting based on the company’s relative return on tangible common equity for fiscal years 2023–2025 versus a Compensation Committee–approved peer group.

To cover tax withholding obligations tied to these vestings, 11,383 shares and 8,653 shares of common stock were withheld. After these transactions, Stein directly beneficially owned 154,275 shares of Columbia Banking common stock.

Insider Trade Summary

4 transactions reported

Mixed 4 txns

Insider Stein Clint

Role Chair, President, CEO

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	28,927	$29.69	$859K
Tax Withholding	Common Stock	11,383	$29.69	$338K
Grant/Award	Common Stock	21,988	$29.69	$653K
Tax Withholding	Common Stock	8,653	$29.69	$257K

Holdings After Transaction: Common Stock — 152,323 shares (Direct)

Footnotes (1)

Shares granted pursuant to the terms of the performance restricted stock units granted on February 21, 2023, which vested on February 2, 2026 based on to the issuer's relative return on tangible common equity for fiscal years 2023-2025 compared to a Compensation Committee approved group of peers. Represents withholding of shares of common stock to satisfy the reporting person's tax withholding obligations in connection with the shares granted pursuant to the terms of the performance restricted stock units vesting. Shares granted pursuant to the terms of the performance restricted stock units granted on March 15, 2023, which vested on February 2, 2026 based on to the issuer's relative return on tangible common equity for fiscal years 2023-2025 compared to a Compensation Committee approved group of peers.

Form 4 Insider Transactions: What Each Field Means →

02/04/2026 - 07:03 PM

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^*

Stein Clint

(Last)

(First)

(Middle)

C/O COLUMBIA BANKING SYSTEM, INC.

1301 A STREET

(Street)

TACOMA

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)

X	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Chair, President, CEO

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

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	02/02/2026		A		28,927⁽¹⁾	A	$29.69	152,323	D
Common Stock	02/02/2026		F		11,383⁽²⁾	D	$29.69	140,940	D
Common Stock	02/02/2026		A		21,988⁽³⁾	A	$29.69	162,928	D
Common Stock	02/02/2026		F		8,653⁽²⁾	D	$29.69	154,275	D

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. Shares granted pursuant to the terms of the performance restricted stock units granted on February 21, 2023, which vested on February 2, 2026 based on to the issuer's relative return on tangible common equity for fiscal years 2023-2025 compared to a Compensation Committee approved group of peers.

2. Represents withholding of shares of common stock to satisfy the reporting person's tax withholding obligations in connection with the shares granted pursuant to the terms of the performance restricted stock units vesting.

3. Shares granted pursuant to the terms of the performance restricted stock units granted on March 15, 2023, which vested on February 2, 2026 based on to the issuer's relative return on tangible common equity for fiscal years 2023-2025 compared to a Compensation Committee approved group of peers.

Remarks:

	/s/ Andrea M. Newburn, Attorney-in-fact	02/04/2026
	** 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.

Source: View Original Filing on SEC EDGAR

FAQ

What insider transactions did COLB CEO Clint Stein report on February 2, 2026?

Clint Stein reported equity award vesting and tax-related share withholding on February 2, 2026. He received 28,927 and 21,988 COLB common shares from performance restricted stock units, while 11,383 and 8,653 shares were withheld to satisfy tax obligations tied to those vestings.

How many Columbia Banking (COLB) shares does CEO Clint Stein hold after this Form 4?

After the reported transactions, Clint Stein directly beneficially owned 154,275 shares of Columbia Banking common stock. This figure reflects both the vested performance-based stock awards and the shares withheld to cover tax obligations associated with those awards on February 2, 2026.

What performance conditions triggered COLB CEO Clint Stein’s stock vesting?

The vesting was tied to Columbia Banking’s relative return on tangible common equity for fiscal years 2023–2025. Performance was measured against a Compensation Committee–approved peer group, determining how many performance restricted stock units granted in 2023 converted into common shares for Clint Stein.

Why were some of Clint Stein’s COLB shares reported as disposed of on the Form 4?

Shares coded as disposals represented tax withholding, not open-market sales. Specifically, 11,383 and 8,653 COLB shares were withheld to satisfy Clint Stein’s tax obligations arising from the vesting of his performance restricted stock units awarded in 2023.

What types of equity awards did COLB grant to CEO Clint Stein in 2023?

Columbia Banking granted performance restricted stock units to Clint Stein on February 21, 2023 and March 15, 2023. These awards converted into 28,927 and 21,988 COLB common shares upon vesting on February 2, 2026, based on relative return on tangible common equity performance.