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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * Elsaesser Ford   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 _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 1301 ?A? STREET 3. Date of Earliest Transaction (Month/Day/Year) 11/01/2014 (Street) TACOMA, WA 98402 4. If Amendment, Date 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 (City) (State) (Zip) 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 Common Stock 11/01/2014   A   33,096 A (1) (7) 33,096 D   Common Stock 11/01/2014   A   389 A (2) (7) 33,485 I By Elsaesser, Jarzabek & Buchanan, Pension Fund ITF: Joseph Jarzabek Common Stock 11/01/2014   A   52 A (3) (7) 33,537 I Elsaesser Jarzabek Pension Plan ITF: Lois Lapointe Common Stock 11/01/2014   A   5 A (4) (7) 33,542 I ED Jones - Elsaesser Jarzabek Anderson Marks & Elliott Savings Plan UAD 2/1/83 FBO: Sherylee Foster Common Stock 11/01/2014   A   26 A (5) (7) 33,568 I ED Jones - Elsaesser Jarzabek Anderson Marks & Elliott Savings Plan UAD 12/1/3 FBO Deborah Hillen Common Stock 11/01/2014   A   5 A (6) (7) 33,573 I ED Jones - Elsaesser Jarzabek Anderson Marks & Elliott Savings Plan UAD 12/1/83 FBO: Darla L Kuhman

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Underlying Securities (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 of Derivative Security: 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

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Elsaesser Ford 1301 ?A? STREET TACOMA, WA 98402	X

Signatures

/s/ Cathleen Dent, attorney-in-fact		11/04/2014
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	In connection with the merger of Intermountain Community Bancorp ("Intermountain") with and into Columbia Banking System, Inc. ("Columbia") on November 1, 2014 pursuant to the Agreement and Plan of Merger, dated July 23, 2014, as amended, between Intermountain and Columbia (the "Merger"), the reporting person was entitled to receive, subject to proration, 33,096 shares of the Columbia common stock reported above, together with $3,549.56 in cash, in exchange for 45,254 shares of Intermountain common stock.
(2)	In connection with the Merger, the reporting person was entitled to receive, subject to proration, 389 shares of the Columbia common stock reported above, together with $1,389.56 in cash, in exchange for 606 shares of Intermountain common stock.
(3)	In connection with the Merger, the reporting person was entitled to receive, subject to proration, 52 shares of the Columbia common stock reported above in exchange for 72 shares of Intermountain common stock.
(4)	In connection with the Merger, the reporting person was entitled to receive, subject to proration, 5 shares of the Columbia common stock reported above together with $18.34 in cash, in exchange for 8 shares of Intermountain common stock.
(5)	In connection with the Merger, the reporting person was entitled to receive, subject to proration, 26 shares of the Columbia common stock reported above together with $94.01 in cash, in exchange for 41 shares of Intermountain common stock.
(6)	In connection with the Merger, the reporting person was entitled to receive, subject to proration, 5 shares of the Columbia common stock reported above together with $20.64 in cash, in exchange for 9 shares of Intermountain common stock.
(7)	On October 31, 2014, the trading day immediately prior to the November 1, 2014 effective date of the Merger, the closing price of Intermountain's common stock was $20.00 per share and the closing price of Columbia's common stock was $27.78 per share.

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