On January 24, 2013, Costco Wholesale Corporation (the "Company") held its 2013 Annual Meeting of Shareholders. There were 434,824,153 shares of common stock entitled to be voted; 371,051,110 shares were voted in person or by proxy. The Company's shareholders voted on the following matters:

1. The election of each of the five Class II directors nominated by the Board of Directors to hold office until the 2016 Annual Meeting of Shareholders and until their successors are elected and qualified;

2. The ratification of the selection of KPMG LLP as the Company's independent auditors for fiscal year 2013;

3. On a non-binding basis, the approval of the executive compensation disclosed in the Company's Proxy Statement dated December 13, 2012; and

4. The consideration of a shareholder proposal that the Board of Directors take all necessary steps (other than steps that must be taken by shareholders) to eliminate the classification of the Board of Directors and to require that all directors elected at or after the annual meeting held in 2014 be elected on an annual basis.

The results of the shareholder votes are set forth below:

Board of Directors.

  Nominees                             For            Withheld        Broker Non-Votes
  Benjamin S. Carson, Sr., M.D.     304,272,261       11,034,988             55,743,861
  William H. Gates                  309,589,629        5,717,620             55,743,861
  Hamilton E. James                 308,815,547        6,491,702             55,743,861
  W. Craig Jelinek                  305,929,064        9,378,185             55,743,861
  Jill S. Ruckelshaus               302,623,365       12,683,884             55,743,861

Independent Auditor

Approval, on a non-binding basis, of Executive Compensation

For Against Abstain Broker Non-Votes 306,140,096 7,544,389 1,622,764 55,743,861

Shareholder Proposal

For Against Abstain Broker Non-Votes 226,715,823 87,341,658 1,249,768 55,743,861