Columbia Banking (COLB) EVP awarded 16,645 restricted stock units

Rhea-AI Filing Summary

Nixon Torran B reported acquisition or exercise transactions in this Form 4 filing.

COLUMBIA BANKING SYSTEM, INC. Senior Executive VP Torran B. Nixon received a grant of 16,645 restricted stock units on 02/18/2026. These units were valued at $31.24 each at grant, and will vest 33.33% per year over three years. Following this award, Nixon holds 54,065 restricted stock units directly.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Nixon Torran B

Role Senior Executive VP

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Unit	16,645	$31.24	$520K

Holdings After Transaction: Restricted Stock Unit — 54,065 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^*

Nixon Torran B

(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)
	Senior Executive VP

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		16,645		(1)	(1)	Common Stock	16,645	$31.24	54,065	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 insider transaction did COLB report for Torran B. Nixon?

COLUMBIA BANKING SYSTEM, INC. reported that Senior Executive VP Torran B. Nixon received a grant of 16,645 restricted stock units on February 18, 2026. This is an equity compensation award, not an open-market stock purchase or sale.

At what price were the new restricted stock units granted at COLB?

The 16,645 restricted stock units granted to Torran B. Nixon were valued at $31.24 per unit on the grant date. This valuation reflects the reference price used for the equity award reported in the insider filing.

How many COLB restricted stock units does Torran B. Nixon now hold?

After the February 18, 2026 grant, Torran B. Nixon directly holds a total of 54,065 restricted stock units in COLUMBIA BANKING SYSTEM, INC. This figure includes the newly awarded 16,645 units reported in the transaction.

What is the vesting schedule for Torran B. Nixon’s new COLB RSUs?

The restricted stock units granted to Torran B. Nixon on February 18, 2026 will vest 33.33% per year over three years. This means the award becomes earned in roughly equal annual installments under the disclosed vesting terms.

Is the COLB Form 4 transaction a stock purchase or a compensation award?

The COLB Form 4 transaction is a compensation-related award, not an open-market stock purchase. Torran B. Nixon received 16,645 restricted stock units as a grant described as a “Grant, award, or other acquisition” in the filing details.