UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) ~~of the Securities Exchange Act of 1934~~

~~Date~~ of ~~Report~~the ~~(Date~~Securities ofExchange ~~earliest~~Act ~~event~~of ~~reported):~~1934 ~~October 13, 2017~~

Date of Report (Date of earliest event reported):

November 1, 2017

PACIFIC CONTINENTAL CORPORATION

(Exact name of registrant as specified in its charter)

Oregon	000-30106	93-1269184
OREGON	000-30106	93-1269184
(State of Incorporation)	(Commission File Number)	(IRS Employer Identification No.)
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)

111 West 7th Avenue

Eugene, Oregon 97401

(Address of principal executive offices) (~~Zip~~zip ~~Code~~code)

~~Tel.~~Registrant’s telephone number, including area code: (541) 686-8685

~~Registrant’s~~(Former ~~telephone~~name ~~number~~or former address, ~~including~~if ~~area~~changed ~~code~~since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing ~~obligation~~obligations of the registrant under any of the following provisions (see General ~~Instruction~~Instructions A.2. below):

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act of (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act of (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in ~~as defined in~~ Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) orof Rule 12b–-2 of the Securities Exchange Act of 1934 (§ 240.12b–-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 82.01. ~~Other~~Completion ~~Event~~of Acquisition or Disposition of Assets.

On ~~October~~November 131, 2017, pursuant to the ~~Board~~Agreement and Plan of ~~Directors~~Merger, dated as of January 9, 2017 (the “Merger Agreement”), by and among Columbia Banking System, Inc., a Washington corporation (“Columbia”), Pacific Continental Corporation, an ~~authorized~~Oregon corporation (“Pacific Continental”) and ~~declared~~Coast aMerger ~~cash~~Sub, ~~dividend~~Inc., ~~for~~an ~~the~~Oregon ~~fourth~~corporation ~~quarter~~and ofwholly-owned ~~2017~~subsidiary of $0Columbia (“Merger Sub”), Merger Sub merged with and into Pacific Continental, with Pacific Continental as the surviving corporation (the “First Merger”).11 ~~per~~Immediately ~~share~~following the First Merger and as part of a single integrated transaction, Pacific Continental merged with and into Columbia, with Columbia as the ~~Company’s~~surviving entity ~~common~~(the ~~stock~~“Subsequent Merger”). ~~The~~Immediately ~~dividend~~following ~~will~~the beSubsequent ~~paid~~Merger, onPacific ~~October 30~~Continental Bank, ~~2017~~an Oregon state-chartered bank and wholly-owned subsidiary of Pacific Continental, tomerged ~~shareholders~~with and into Columbia State Bank, a Washington state-chartered bank and wholly-owned subsidiary of ~~record~~Columbia, onwith ~~October 23~~Columbia State Bank as the surviving bank (the “Bank Merger”, ~~2017~~and collectively, with the First Merger, and the Subsequent Merger, the “Mergers”).

Pursuant to the terms and conditions set forth in the Merger Agreement, each outstanding Pacific Continental common share (“Pacific Continental Common Shares”) was converted into the right to receive 0.6430 (the “Exchange Ratio”) of a Columbia common share (the “Merger Consideration”). In lieu of the issuance of any fractional share, Columbia paid to each former shareholder of Pacific Continental who otherwise was entitled to receive such fractional share an amount in cash (rounded to the nearest cent) determined by multiplying (i) the average daily closing price of a Columbia common share (“Columbia Common Shares”) on the Nasdaq Global Select Market (“NASDAQ”) for the 20 consecutive NASDAQ trading days ending on and including the trading day that is five trading days prior to the closing of the Mergers (such time period, the “Determination Period” and such average daily closing price, the “Columbia Average Closing Price”) by (ii) the fraction of a share (after taking into account all Pacific Continental Common Shares held by such holder at the Effective Time (as defined below) and rounded to the nearest thousandth when expressed in decimal form) of Columbia Common Shares which such holder was otherwise entitled to receive.

At the date and time when the First Merger became effective (the “Effective Time”), all outstanding restricted stock units of Pacific Continental (“Pacific Continental Restricted Stock Units”), whether vested or unvested, automatically and without any action on the part of the holders thereof, were cancelled and only entitled the holders of such Pacific Continental Restricted Stock Units to receive (without interest), an amount in cash equal to (i) the number of Pacific Continental Common Shares subject to such Pacific Continental Restricted Stock Units immediately prior to the Effective Time multiplied by (ii) (A) the Exchange Ratio multiplied by (B) the Columbia Average Closing Price for the Determination Period (the “Equity Award Cashout Price”), less applicable taxes required to be withheld with respect to such payment. At the Effective Time, any vesting conditions applicable to any Pacific Continental outstanding restricted stock awards automatically and without any action on the part of the holders thereof, accelerated in full and such restricted stock awards were converted into, and became exchangeable for, the Merger Consideration (less applicable taxes required to be withheld with respect to such vesting). At the Effective Time, all outstanding stock options of Pacific Continental (“Pacific Continental Stock Options”), whether vested or unvested, were automatically and without any action on the part of the holders thereof, cancelled and only entitled the holders of such Pacific Continental Stock Options to receive (without interest), an amount in cash equal to the product of (i) the number of Pacific Continental Common Shares subject to such Pacific Continental Stock Options immediately prior to the Effective Time, multiplied by (ii) the excess, if any, of (A) the Equity Award Cashout Price over (B) the exercise price per Pacific Continental Common Share of such Pacific Continental Stock Options less applicable taxes required to be withheld with respect to such payment. At the Effective Time, all stock appreciation rights of Pacific Continental (“Pacific Continental Stock Appreciation Rights”), whether cash-settled or stock-settled, vested or unvested, were automatically and without any action on the part of the holders thereof, cancelled and only entitled the holders of such Pacific Continental Stock Appreciation Rights to receive (without interest) an amount in cash equal to the product of (i) the number of Pacific Continental Common Shares subject to such Pacific Continental Stock Appreciation Rights immediately prior to the Effective Time, multiplied by (ii) the excess, if any, of (A) the Equity Award Cashout Price over (B) the reference price per Pacific Continental Common Share of such Pacific Continental Stock Appreciation Right, less applicable taxes required to be withheld with respect to such payment.

The foregoing description of the Mergers and the Merger Agreement does not purport to be complete and is qualified in its entirety by reference to the Merger Agreement, which is filed as Exhibit 2.1 to Pacific Continental’s Current Report on Form 8-K filed on January 10, 2017.

Item 3.01.

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing.

On November 1, 2017, Pacific Continental notified NASDAQ that trading in the Pacific Continental Common Shares should be suspended and the listing of the Pacific Continental Common Shares should be removed, in each case prior to market open on November 1, 2017. NASDAQ has filed a notification of removal from listing of the Pacific Continental Common Shares on Form 25 with the Securities and Exchange Commission. Columbia intends to file a Form 15 with respect to the Pacific Continental Common Shares requesting the deregistration of the Pacific Continental Common Shares under Section 12 of the Exchange Act and the suspension of Pacific Continental’s reporting obligations under Sections 13 and 15(d) of the Exchange Act.

Item 3.03.

Material Modification to Rights of Security Holders.

The information set forth under Item 2.01 and Item 3.01 is incorporated into this Item 3.03 by reference.

Item 5.01.

Changes in Control of Registrant.

The information set forth under Item 2.01 is incorporated into this Item 5.01 by reference.

Item 5.02.

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On November 1, 2017, effective upon the consummation of the Mergers, Pacific Continental’s directors and executive officers ceased serving in such capacities.

Item 8.01.

Other Events.

On November 1, 2017, Columbia issued a press release announcing the completion of the Mergers. A copy of the press release is filed as Exhibit 99.1 hereto and is incorporated herein by reference.

Item 9.01.

Financial Statements and Exhibits.

(d)

Exhibits

99.1 Press Release dated October 13, 2017 announcing fourth quarter dividend.


2.1		Agreement and Plan of Merger, dated as of January 9, 2017, by and among Columbia Banking System Inc., Pacific Continental Corporation and Coast Merger Sub, Inc. (filed as Exhibit 2.1 to Pacific Continental’s Current Report on Form 8-K filed on January 10, 2017 and incorporated herein by reference)*

99.1		Press Release issued November 1, 2017.

*	The disclosure schedules and exhibits have been omitted pursuant to Item 601(b)(2) of Regulation S-K. Columbia, as successor to Pacific Continental, agrees to furnish supplementally a copy of any omitted schedule or exhibit to the SEC upon request.

EXHIBIT INDEX


Exhibit No.		Description

2.1		Agreement and Plan of Merger, dated as of January 9, 2017, by and among Columbia Banking System Inc., Pacific Continental Corporation and Coast Merger Sub, Inc. (filed as Exhibit 2.1 to Pacific Continental’s Current Report on Form 8-K filed on January 10, 2017 and incorporated herein by reference)*

99.1		Press Release dated November 1, 2017.

*	The disclosure schedules and exhibits have been omitted pursuant to Item 601(b)(2) of Regulation S-K. Columbia, as successor to Pacific Continental, agrees to furnish supplementally a copy of any omitted schedule or exhibit to the SEC upon request.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the ~~registrant~~Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: October 13, 2017

PACIFIC CONTINENTAL CORPORATION By: /s/ Richard R. Sawyer Richard R. Sawyer Chief Financial Officer

Date: November 1, 2017

COLUMBIA BANKING SYSTEM, INC.,

AS SUCCESSOR TO PACIFIC

CONTINENTAL CORPORATION

/s/ Hadley S. Robbins

Name:

Title:

Hadley S. Robbins

President and Chief Executive Officer

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