United States securities and exchange commission logo





                             June 9, 2021

       Mehesh Karande
       Chief Financial Officer
       Omega Therapeutics, Inc.
       20 Acorn Park Dive
       Cambridge, MA 02140

                                                        Re: Omega Therapeutics,
Inc.
                                                            Draft Registration
Statement on Form S-1
                                                            Filed may 10, 2021
                                                            CIK No. 0001850838

       Dear Mr. Karande:

              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 submitted May 10, 2021

       Overview, page 1

   1.                                                   Please revise the
opening paragraph to provide context and balance to your disclosure that
                                                        you are an
early-stage    biopharmaceutical company and to highlight that your operations
                                                        are preclinical in
nature.
   2.                                                   We note your statement
on page 1 that you believe your platform will    fundamentally
                                                        transform human
medicine    and has    broad potential applicability across a range of
                                                        diseases and
conditions.    Please place this selected disclosure in its proper context by
                                                        revising your Summary
disclosure to make it clear, per your disclosure of your intellectual
                                                        property, that your
in-licensed patents relate to specific diseases and conditions, such as
                                                        HCC and NSCLC.
 Mehesh Karande
FirstName  LastNameMehesh Karande
Omega Therapeutics, Inc.
Comapany
June 9, 2021NameOmega Therapeutics, Inc.
June 9,
Page 2 2021 Page 2
FirstName LastName
3.       Please clarify the meaning or scientific or technical terms the first
time they are used in
         the Summary and the Business sections or in close proximity thereto in
order to ensure
         that lay readers will understand the disclosure. For example, please
briefly explain what
         you mean by oncogenes, HCC xenograts, lipid excipients, effector
proteins and cationic
         and ionizable LNPs.
4.       Please replace your statement that you have achieved in vivo proof of
concept with an
         objective description of your preclinical results and remove the
prediction that you expect
         to achieve in vivo preclinical proof-of-concept for multiple
additional programs in ___.
         You may indicate when you expect to complete in vivo studies but not
the results of such
         studies.


Advantages of Omega Platform, page 3

5.       Please balance your disclosure with equally prominent disclosure of
the disadvantages of
         your platform, including clinical data relating to novel products can
be difficult to analyze
         and approval of novel products can be more expensive and take longer.
Our Portfolio, page 4

6.       Please revise your pipeline table on pages 4 and 113 to limit the
preclincal phases
         presented as separate columns to two, discovery and preclinical
trials, and to include
         separate columns for each of the Phase 1, 2 and 3 trials. We also note
that your Summary
         pipeline table contains text that is difficult to read. Please revise
to increase the font size
         and clarify which candidate(s) the text relates to.
7.       We note the inclusion of several product candidates relating to the
treatment of relating to
         the corneal regeneration, idiopathic pulmonary fibrosis and small cell
lung cancer diseases
         with undisclosed targets in the second, fourth and seventh rows in
your Summary pipeline
         table. Given the lack of disclosure
         related to these programs, please explain why these programs are
sufficiently material to
         your business to warrant inclusion in your pipeline table. If they are
material, please
         expand your disclosure in your Business section to provide a more
fulsome discussion of
         these programs, including a description of preclinical studies or
development activities
         conducted. Alternatively, remove any programs that not currently
material from your
         pipeline table on pages 4 and 113.
Developments by competitors may render our products or technologies
obsolete..., page 47

8.       We note your disclosure on page 48 and 133 that several of your
competitors are
         developing technologies focused on gene-expression control using
various technologies.
         Please disclose whether any of your competitors are developing
gene-expression therapies
         for the treatment of diseases such as HCC, NSCLC and ARDS.
Our restated certificate of incorporation will designate specific courts as the
exclusive forum...,
 Mehesh Karande
FirstName  LastNameMehesh Karande
Omega Therapeutics, Inc.
Comapany
June 9, 2021NameOmega Therapeutics, Inc.
June 9,
Page 3 2021 Page 3
FirstName LastName
page 85

9.       We note your disclosure that your forum selection provision in your
restated certificate of
         incorporation may limit a shareholder   s ability to bring a claim in
a judicial forum that it
         finds favorable for disputes with you and may discourage such
lawsuits. Please revise this
         risk factor and your disclosure on page 179 to discuss that there is
also a risk that your
         forum selection provision may result in increased costs for investors
to bring a claim.
Use of Proceeds, page 90

10.      Please revise to identify the specific product candidates for which
you intend to use the
         proceeds of the offering, quantify the approximate
         amount of proceeds you intend to allocate toward each and indicate how
far the proceeds
         from the offering will allow you to proceed with the continued
development of
         each programs.
Management's Discussion and Analysis of Financial Condition and Results of
Operations
Results of Operations, page 103

11.      We note your disclosure on page 102 that you do not track research and
development
         expenses on a program by program basis. In light of the significant
increase in research
         and development expenses, please revise to provide a breakdown of your
research and
         development expenses by type of expense.
Hepatocellular Carcinoma, page 125

12.      We refer to your disclosure on pages 126 and 127 regarding your
preclinical
         studies comparing your product candidate OTX-2002 with sorafenib.
Please expand your
         disclosure to the disclose any observed adverse side effects and the
primary and secondary
         endpoints, as applicable.
Manufacturing, page 131

13.      We refer to your disclosure on page 132 regarding a third-party
provider with extensive
         LNP intellectual property and a highly experienced CDMO that will
manufacture your
         product candidates that you will rely on for your delivery technology.
To the extent you
         are dependent on the third-party provider with extensive LNP
intellectual property, please
         identify the party and file any agreements as exhibits to the
registration statement. See
         Item 101(h)(4)(v) and Item 601(b)(10) of Regulation S-K.
Alternatively, provide an
         analysis supporting your degermation that such information is not
required.
Intellectual Property, page 133

14.      We refer to your disclosure on pages 134 and 135 regarding your patent
portfolio for
         specified products and technologies. For each of the product and
technology areas
         identified, please clarify your disclosure to specify the number of
patents and/or patent
 Mehesh Karande
FirstName  LastNameMehesh Karande
Omega Therapeutics, Inc.
Comapany
June 9, 2021NameOmega Therapeutics, Inc.
June 9,
Page 4 2021 Page 4
FirstName LastName
         applications, whether such patents or patent applications are owned or
licensed, as well as
         the applicable jurisdiction for each group of patents or patent
applications. You also
         disclose on page 133 that all patents and patent applications in your
patent portfolio will
         expire between 2035 and 2042. Please specify when you expect the
patents issuing from
         patent applications in each category of your patent portfolio to
expire.
15.      We note your disclosure on page 135 regarding other patent
applications relating to novel
         OEC compositions and their use for treating additional disorders,
including other cancers,
         inflammatory disorders, neurological and metabolic disorders. Please
specify the number
         of patent applications, whether they are owned or licensed, and
applicable jurisdiction of
         such patent applications.
License Agreement with Flagship, page 135

16.      You disclose on page 135 that you assigned to Flagship certain
foundational intellectual
         property ("Foundational IP") and obtained an exclusive,
royalty-bearing license from
         Flagship under such Foundational IP to develop any product thereof.
Please expand your
         disclosure to describe the nature, scope and expiration of
intellectual property comprising
         the Foundational IP. Additionally describe your obligations under the
Flagship agreement.

17.      We note your disclosure on page 136 regarding the Flagship license
agreement. Please
         expand your disclosure of the type of product or technology that the
licensed patents relate
         to and when the last-to-expire licensed patent is scheduled to expire.
18.      Please expand your disclosure on page 136 of the intellectual property
that is jointly
         conceived by you and Flagship, including who is responsible for the
clinical development
         of such intellectual property included within the scope of the
license.
Exclusive and Co-Exclusive License Agreements with WIBR, page 136

19.      Please revise your disclosure to specify the aggregate amounts paid to
date (including the
         payment of any upfront or execution fees), when the last-to-expire
patent is scheduled to
         expire and the royalty term, as applicable, under your exclusive
license agreement with
         WIBR.
20.      We refer to your disclosure on page 136 regarding your co-exclusive
license agreement
         with WIBR. Please revise your disclosure to disclose when the last-to
expire licensed
         patent is scheduled to expire, the royalty term and the aggregate
amounts paid to date
         under the license agreement (including payment of any upfront or
execution fees). We
         also note your disclosure on page 136 that your co-exclusive rights
under the WIBR Co-
         Exclusive Agreement will become exclusive if the co-exclusive license
agreement
         between WIBR and the co-exclusive licensee is terminated. Please
expand your
         disclosure of the termination provisions of your co-exclusive license
agreement with
         WIBR.
21.      Please describe the nature of an invention that would result in the
third party to the SRA
 Mehesh Karande
FirstName  LastNameMehesh Karande
Omega Therapeutics, Inc.
Comapany
June 9, 2021NameOmega Therapeutics, Inc.
June 9,
Page 5 2021 Page 5
FirstName LastName
         obtaining non-exclusive rights to the licensed patents.
22.      You disclose on page 136 that your co-exclusive rights under the WIBR
Co-Exclusive
         Agreement will become exclusive if the co-exclusive license agreement
between WIBR
         and the co-exclusive licensee is terminated. Please expand your
disclosure of the
         termination provisions of your Co-Exclusive Agreement with WIBR.
Agreements with Acuitas, page 138

23.      We refer to your disclosure on page 138 regarding your development and
option
         agreement with Acuitas. Please disclose when the last-to-expire
licensed patent under the
         second option are scheduled to expire. With respect to your disclosure
of the Acuitas
         license agreement, please revise to disclose the aggregate amounts
paid to date and when
         the last-to-expire licensed patent is scheduled to expire. We also
note your disclosure on
         page 66 that you depend substantially on your license agreements,
including your Acuitas
         license agreement. Please file the Acuitas option and license
agreements as exhibits to the
         registration statement or provide analysis as to why it would not be
required under Item
         601(b)(10) of Regulation S-K.
Note 2 - Summary of Significant Accounting Policies
Stock-based Compensation, page F-11

24.      Once you have an estimated offering price or range, please provide us
an analysis
         explaining the reasons for the differences between recent valuations
of your common
         stock leading up to the initial public offering and the estimated
offering price. This
         information will help facilitate our review of your accounting for
equity issuances,
         including the stock options, warrants and other stock-based
compensation, as well as
         beneficial conversion features. Please discuss with the staff how to
submit your response.
General

25.      Please provide us with supplemental 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,
         have presented or expect to present to potential investors in reliance
on Section 5(d) of the
         Securities Act, whether or not you retained, or intend to retain,
copies of those
         communications.
       You may contact David Burton at 202-551-3626 or Kevin Vaughn at
202-551-3494 if
you have questions regarding comments on the financial statements and related
matters. Please
contact Jane Park at 202-551-7439 or Suzanne Hayes at 202-551-3675 with any
other questions.



                                                               Sincerely,

                                                               Division of
Corporation Finance
 Mehesh Karande
Omega Therapeutics, Inc.
FirstName
June       LastNameMehesh Karande
     9, 2021
Page 6
Comapany   NameOmega Therapeutics, Inc.
June 9, 2021 Page 6                       Office of Life Sciences
FirstName LastName