Columbia Banking (COLB) EVP awarded 2,800 RSUs vesting over 3 years

Rhea-AI Filing Summary

Moore Devine David reported acquisition or exercise transactions in this Form 4 filing.

Columbia Banking System EVP and Chief Marketing Officer David Moore Devine received a grant of 2,800 restricted stock units on 02/18/2026. The units were valued at $31.24 per unit on the grant date and represent equity-based compensation rather than an open-market purchase.

The grant will vest in three equal installments of 33.33% per year over three years, encouraging longer-term retention. Following this award, Moore Devine holds a total of 5,619 restricted stock units directly.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Moore Devine David

Role EVP Chief Marketing Officer

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Unit	2,800	$31.24	$87K

Holdings After Transaction: Restricted Stock Unit — 5,619 shares (Direct)

Footnotes (1)

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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^*

Moore Devine David

(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 Marketing 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		2,800		(1)	(1)	Common Stock	2,800	$31.24	5,619	D

Explanation of Responses:

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

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 did COLB executive David Moore Devine report on this Form 4?

David Moore Devine reported receiving 2,800 restricted stock units as equity compensation. The grant was made on February 18, 2026 and is classified as an acquisition under a grant or award, not an open-market stock purchase or sale.

How many restricted stock units were granted to the COLB EVP?

The Columbia Banking System EVP and Chief Marketing Officer received 2,800 restricted stock units. These units were granted as part of his compensation package, with a reference price of $31.24 per unit disclosed in the filing for valuation and reporting purposes.

What is the vesting schedule for David Moore Devine’s COLB RSUs?

The restricted stock units granted to David Moore Devine vest in three equal installments. According to the disclosure, 33.33% of the award vests each year over three years, tying the ultimate share delivery to continued employment during that period.

Is this COLB Form 4 a stock purchase or a compensation award?

This Form 4 reflects a compensation award, not an open-market stock purchase. The filing classifies the 2,800 units as a grant or award acquisition of restricted stock units, which will vest over time instead of being immediately bought on the public market.

How many COLB restricted stock units does the EVP hold after this grant?

After this equity award, David Moore Devine holds a total of 5,619 restricted stock units directly. This total includes the newly granted 2,800 units, which will vest in three annual installments of 33.33% according to the disclosed vesting schedule.

What role does the reporting person hold at Columbia Banking System (COLB)?

The reporting person, David Moore Devine, serves as Executive Vice President and Chief Marketing Officer. The disclosed transaction records a grant of restricted stock units tied to this executive role, structured to vest over three years to support long-term alignment with the company.