May 26, 2010
VIA EDGAR
Division of Corporate Finance
United States Securities and Exchange Commission
100 F Street, N.E.
Mail Stop 4561
Washington, D.C. 20549
| Attention: | Celia A. Soehner, Examiner Kevin Kuhar, Staff Accountant Jeffrey Jaramillo, Accounting Branch Chief Mary Beth Breslin, Senior Attorney |
| Re: | Withdrawal of Acceleration Request of GenMark Diagnostics, Inc. |
| Registration Statement on Form S-1 (File No. 333-165562) |
Ladies and Gentlemen:
Piper Jaffray & Co., as representative of the several underwriters, hereby withdraws the underwriters’ acceleration request dated May 25, 2010. Thank you for your assistance. If you should have any questions, please contact Jason Day of Faegre & Benson LLP, counsel to the underwriters, at (303) 607-3720 or by facsimile at (303) 607-3600.
| Very truly yours, | ||
Piper Jaffray & Co. As representative of the several underwriters | ||
| By: | /s/ Neil A. Riley | |
| Neil A. Riley | ||
| Principal | ||
