Item 7.01 Regulation FD Disclosure

On March 22, 2013, Affymetrix, Inc. issued a press release announcing it entered into a contract with UK Biobank to genotype 500,000 DNA samples.

The information set forth in this Item 7.01 of Form 8-K is furnished pursuant to Item 7.01 and shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Exchange Act, expect as shall be expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits

(d) Exhibits.

Exhibit No. Description

99.1 Press Release dated March 22, 2013

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