COLUMBIA BANKING SYSTEM, INC. — Director's Dealing 2016

Mar 11, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: COLUMBIA BANKING SYSTEM INC (COLB)
CIK: 0000887343
Period of Report: 2016-03-09

Reporting Person: Robbins Hadley S (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-03-09	Common Stock	M	1608	$9.91	Acquired	12819	Direct
2016-03-09	Common Stock	F	579	$29.3044	Disposed	12240	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-03-09	Stock Option	$9.91	M	1608	Disposed	2020-04-20	Common Stock (1608)	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Stock Option	$54.70	2018-04-20	Common Stock (1165)	0	Direct
Stock Option	$136.93	2017-03-27	Common Stock (1958)	0	Direct

Footnotes

F1: Represents Stock Options inadvertently omitted in prior filings.