CBMX Combimatrix Corp. (MM)

CombiMatrix Corporation (Nasdaq:CBMX) announced today that it will release its fourth quarter and year-end 2012 financial results on Wednesday, February 27, 2013. Results will be released prior to trading on that day.

A conference call has also been scheduled regarding CombiMatrix Corporation's fourth quarter and year-end 2012 financial results. The presentation and Q&A session will start at 8:00 a.m. Pacific Time (11:00 a.m. Eastern) on February 27, 2013.

To attend the presentation by phone, dial 1-888-395-3227 for domestic callers and 1-719-325-2215 for direct-dial or international callers. To listen to the call via CombiMatrix's website, go to www.combimatrix.com in the Investor/Events section (http://investor.combimatrix.com/events.cfm).

A replay of the presentation will be available following the presentation, either via the CombiMatrix website Investor/Events section (http://investor.combimatrix.com/events.cfm) or by dialing 1-877-870-5176 for domestic callers or 1-858-384-5517 for direct-dial international callers. When prompted, enter playback pin number 3824098.

About CombiMatrix Corporation

CombiMatrix Corporation, through its wholly owned subsidiary, CombiMatrix Molecular Diagnostics, Inc. (CMDX), is a molecular diagnostics laboratory which offers DNA-based testing services to the prenatal, pediatric and oncology markets. The Company performs genetic testing utilizing Microarray, FISH, PCR and G-Band Chromosome Analysis. CMDX offers prenatal and pediatric testing services for the detection of abnormalities of genes at the DNA level beyond what can be identified through traditional technologies. CMDX was also the first commercial clinical laboratory in the United States to make comprehensive DNA-based genomic analysis of solid tumors, including breast, colon, lung, prostate and brain tumors, available to oncology patients and medical professionals. Additional information about CMDX is available at www.cmdiagnostics.com or by calling 1-800-710-0624.

CONTACT: Company Contact:
         R. Judd Jessup
         President & CEO, CombiMatrix Corporation
         Tel (949) 753-0624

         Investor Relations Contact:
         Matthew H. Clawson
         Partner, Allen & Caron, Inc.
         Tel (949) 474-4300
         matt@allencaron.com