Columbia Banking CEO granted 56,017 RSUs

Stein Clint reported acquisition or exercise transactions in this Form 4 filing.

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Rhea-AI Filing Summary

Stein Clint reported acquisition or exercise transactions in this Form 4 filing.

Columbia Banking System director and CEO Clint Stein received a grant of 56,017 restricted stock units on 02/18/2026 at a reference price of $31.24 per unit. These RSUs vest in equal installments of 33.33% per year over three years. After this award, Stein directly holds 185,155 restricted stock units in total.

Insider Trade Summary

Grant/Award: 56,017 shares

Grant/Award 1 txn

Insider Stein Clint

Role Chair, President, CEO

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Unit	56,017	$31.24	$1.75M

Holdings After Transaction: Restricted Stock Unit — 185,155 contracts (Direct)

Footnotes (1)

F1. Restricted stock units granted 02/18/2026. The grant will vest 33.33% per year over three years.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Columbia Banking System (COLB) CEO Clint Stein report on this Form 4?

Clint Stein reported an acquisition of 56,017 restricted stock units as an equity award. The units were granted at a reference price of $31.24 per unit and increase his directly held restricted stock unit balance to 185,155 units after the transaction.

What is the size and price of the RSU grant to the COLB CEO?

The grant to the Columbia Banking System CEO covers 56,017 restricted stock units. The filing shows a transaction price of $31.24 per unit, reflecting the fair market value used for the award on the 02/18/2026 grant date.

How will Clint Stein’s 56,017 Columbia Banking System RSUs vest over time?

The 56,017 restricted stock units granted to Clint Stein will vest over three years. The filing states that 33.33% of the award vests each year, creating three approximately equal annual vesting installments from the 02/18/2026 grant date.

How many restricted stock units does the COLB CEO hold after this award?

After receiving this grant, Clint Stein directly holds a total of 185,155 restricted stock units. This total includes the newly awarded 56,017 units plus his prior holdings, as reported in the post-transaction ownership figure on the Form 4 filing.

Does the Columbia Banking System Form 4 show a purchase or a compensatory award?

The Form 4 shows a compensatory equity award, not an open-market purchase. The transaction code is “A” for a grant, award, or other acquisition of 56,017 restricted stock units, consistent with typical executive compensation rather than a discretionary stock market transaction.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 02/20/2026 - 07:46 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)
02/18/2026

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)
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)

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)
Restricted Stock Unit	⁽¹⁾	02/18/2026		A		56,017		⁽¹⁾	⁽¹⁾	Common Stock	56,017	$31.24	185,155	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.

Source: View Original Filing on SEC EDGAR