United States securities and exchange commission logo November 10, 2020 Brian Coe Chief Executive Officer Talis Biomedical Corporation 230 Constitution Drive Menlo Park, CA 94025 Re: Talis Biomedical Corporation Draft Registration Statement on Form S-1 Submitted October 15, 2020 CIK No. 0001584751 Dear Mr. Coe: We have reviewed your draft registration statement and have the following comments. In some of our comments, we may ask you to provide us with information so we may better understand your disclosure. Please respond to this letter by providing the requested information and either submitting an amended draft registration statement or publicly filing your registration statement on EDGAR. If you do not believe our comments apply to your facts and circumstances or do not believe an amendment is appropriate, please tell us why in your response. After reviewing the information you provide in response to these comments and your amended draft registration statement or filed registration statement, we may have additional comments. Draft Registration Statement on Form S-1 Prospectus summary Overview, page 1 1. Please disclose in the Summary that you are a development stage company and that to date you have not generated revenue from product sales. 2. We note your intent to submit around year end a request for an Emergency Use Authorization. Please revise your Summary discussion to explain briefly what the Emergency Use Authorization allows and the uncertain nature of its duration. Brian Coe FirstName LastNameBrian Coe Talis Biomedical Corporation Comapany 10, November NameTalis 2020 Biomedical Corporation November Page 2 10, 2020 Page 2 FirstName LastName Market opportunity, page 7 3. Please disclose any material assumptions and limitations associated with your estimate of the total potential annualized addressable market. Implications of being an emerging growth company and a smaller reporting company, page 10 4. Please supplementally provide us with copies of all written communications, as defined in Rule 405 under the Securities Act, that you, or anyone authorized to do so on your behalf, present to potential investors in reliance on Section 5(d) of the Securities Act, whether or not they retain copies of the communications. Series 1 convertible preferred stock to be outstanding after this offering, page 11 5. In an appropriate location in your prospectus, please disclose the business purposes for the Series 1 convertible preferred stock that will be outstanding after your offering. Risk factors A significant portion of the funding for the development of our Talis One platform..., page 51 6. Please file the government contracts described in this section as exhibits or tell us the basis for your conclusion that you are not required to file these agreements. Some of our intellectual property has been discovered through government funded programs..., page 66 7. Please revise to identify intellectual property rights that are or may be subject to march-in rights. To the extent that your Talis One platform, including your COVID-19 diagnostic test, would be subject to march-in rights, please revise to make this clear. Use of proceeds, page 84 8. To the extent that you will allocate proceeds to the development of Talis One, please specify how far in the development process you expect to reach with the proceeds of the offering. To the extent any material amounts of other funds are necessary to accomplish the specified purpose, state the amounts and sources of other funds needed for each specified purpose and the sources. Refer to Instruction 3 to Item 504 of Regulation S-K. Business Talis One tests, page 120 9. We note your statement that your "initial focus is on the detection of SARS-CoV-2." However, on page 121, you state that "[i]mmediately prior to the current pandemic, we were beginning the process of verification, validation and conducting clinical trials of our Talis One platform for CT/NG." Please reconcile this disclosure and revise the Overview Brian Coe Talis Biomedical Corporation November 10, 2020 Page 3 section of the Summary to clearly disclose that your initial focus was on women's health and sexually transmitted infections and that you postponed development of that program to focus on a COVID-19 test. Performance of the Talis One COVID-19 test, page 121 10. Please disclose any material protocols used during the preclinical assessment of your COVID-19 test, including indicating if any portions of the assessments were blinded. 11. Please revise your textual discussion of the 95% CI statistical analysis performed to explain the significance of the ranges provided and how this data translates into you plan to submit an Emergency Use Authorization to the FDA. Intellectual property, page 128 12. To the extent that your agreements with University of Chicago and Caltech relate to the Talis One, please disclose the material terms and file the agreements as an exhibit to the registration statement or, in the alternative, tell us why you are not required to file these agreements. 13. Discuss, as applicable, whether you hold patents that cover the COVID-19 diagnostic tests. 14. Please revise your discussion to disclose the material foreign jurisdictions. Coverage and reimbursement, page 137 15. Please revise to discuss coverage and reimbursement as it pertains to the COVID-19 diagnostic test. Financial Statements Statements of convertible preferred stock and stockholders' deficit, page F-5 16. As the November and December 2019 stock transactions are complex, with regard to the Statements of convertible preferred stock and stockholders' deficit, revise the disclosure as necessary to: explain how you determined the $56.2 million should increase Additional Paid In Capital, quantify how the $0.5 million inducement was computed, tell us your consideration of disaggregating the single line item which contains the FirstName LastNameBrian $56,241,000 intoCoe multiple lines, (with perhaps a sub-total), and Comapany NameTalis clarify Biomedical the disclosure in Corporation the paragraph that begins with "The impact of the Equity November 10,Transactions...." 2020 Page 3 on page F-24 so that it reconciles to $53,856,000. FirstName LastName Brian Coe FirstName LastNameBrian Coe Talis Biomedical Corporation Comapany 10, November NameTalis 2020 Biomedical Corporation November Page 4 10, 2020 Page 4 FirstName LastName Notes to Financial Statements 2. Summary of significant accounting policies, page F-8 17. The disclosure here refers to a 10-for-1 reverse split while other places in the registration statement refer to a 1-for-10 reverse split. Please revise the disclosure to remove this discrepancy. 8. Convertible notes due to related party, page F-22 18. You disclose that then outstanding principal and interest of $19.0 million was converted and reclassified to Series D-2 Preferred, but your reference on pages F-5 and F-6 is $15.8 million. Please explain to us how and where you accounted for the difference between these two amounts. 13. Net (loss) income per share attributable to Class A Common Stockholders..., page F-33 19. You disclose that pro forma net loss per share has been computed to give effect to the conversion of all outstanding convertible preferred stock into common stock. Please revise your disclosure to address the shares that will be converted into Series 1 convertible preferred stock and how these shares will be treated under ASC 260. You may contact Michael Fay at 202-551-3812 or Lisa Vanjoske at 202-551-3614 if you have questions regarding comments on the financial statements and related matters. Please contact Jeffrey Gabor at 202-551-2544 or Tim Buchmiller at 202-551-3635 with any other questions. Sincerely, Division of Corporation Finance Office of Life Sciences cc: Karen E. Deschaine, Esq.