United States securities and exchange commission logo





                             December 9, 2020

       Geoff Green
       Chief Executive Officer
       LONGEVERON LLC
       1951 NW 7th Avenue
       Suite 520
       Miami, FL 33136

                                                        Re: LONGEVERON LLC
                                                            Draft Registration
Statement on Form S-1
                                                            Submitted November
12, 2020
                                                            CIK No. 0001721484

       Dear Mr. Green:

              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 filed November 12, 2020

       Business Overview, page 1

   1.                                                   We note your references
on page 1 and elsewhere that "Lomecel-B has a high safety
                                                        profile." Please revise
your disclosure here and throughout your prospectus to remove
                                                        your characterization
of Lomecel-B as safe, as a determination of whether a product
                                                        candidate is safe is
solely within the authority of the U.S. Food and Drug Administration
                                                        and comparable
regulatory bodies. We will not object to statements that Lomecel-B
                                                        was well-tolerated or
information about the number of treatment related serious adverse
                                                        events, but you should
not state or imply that your product candidate is safe.
 Geoff Green
FirstName LastNameGeoff  Green
LONGEVERON      LLC
Comapany9,
December  NameLONGEVERON
             2020              LLC
December
Page 2    9, 2020 Page 2
FirstName LastName
Clinical Development Pipeline, page 2

2.       Please adjust the status bars in the pipeline graph, as appropriate,
to illustrate your product
         candidate's current status for each indication. For example, with
respect to your Aging
         Frailty indication, we note that your phase 2 trial is currently
on-going, however, the
         pipeline graph appears to indicate that the phase 2 trial has been
completed.
3.       With respect to the Bahamas Registry Trial, the table appears to
indicate that the product
         candidate has been approved but it is still described as a trial.
Please revise your table to
         remove the indication that the product has been approved or provide
additional
         clarification.
About Our Indications, page 3

4.       We note your disclosure that there are no approved medications that
can prevent, stop, or
         reverse the progression of Alzheimer's disease. However, according to
the alzheimer's
         association website there appear to be two types of medications
cholinesterase
         inhibitors and memantine     that have been approved by the FDA to
treat the cognitive
         symptoms of Alzheimer's disease. Please revise to clarify your
statement or advise.
Financial Overview, page 4

5.       Please balance your disclosure to also state that the Company has
experienced significant
         losses since inception and expects to incur additional losses in the
future.
We have been funded in part by government and non-profit grant awards..., page
15

6.       Please describe the material terms and provisions of grant, contracts
and regulations you
         must comply with for continued receipt of government and non-profit
association
         funding. Additionally, we note your Exhibit Index appears to indicate
your intention not
         to file the referenced contracts or funding agreements. Please provide
us with an analysis
         supporting your conclusion that your are not required to file them
pursuant to Item 601 of
         Regulation S-K.
Risks Related to Intellectual Property, page 20

7.       We note that you may be subject to federal regulations, such as
march-in rights. Please
         provide additional disclosure regarding the technology or technologies
subject to march-
         in rights; the portion of your business that would be affected by the
exercise of march-
         in rights; and whether and how you may be compensated in the event
such rights are
         exercised.
Holders of our Class B common stock will control the direction of our
business..., page 39

8.       Please revise the discussion to identify the four holders you
reference.
Industry and Other Data, page 48
 Geoff Green
FirstName LastNameGeoff  Green
LONGEVERON      LLC
Comapany9,
December  NameLONGEVERON
             2020              LLC
December
Page 3    9, 2020 Page 3
FirstName LastName

9.       Your statement that your internal company research as well as third
party information
         regarding market and industry data has not been independently verified
and that the
         accuracy and completeness of such information is not guaranteed
implies a disclaimer of
         responsibility with respect to such information. Please either delete
the statement or
         specifically state that you are liable for the information related to
the market and industry
         data and your internal company research.
Use of Proceeds, page 48

10.      We note your disclosure that you intend to allocate a portion of the
proceeds from the
         offering to fund research, including clinical trials and product
development for our
         existing pipeline. Please revise your disclosure identify each of the
indications you intend
         to advance with the funds from the offering and how far in the
development process for
         each indication you estimate that the allocated proceeds from the
offering will enable you
         to reach.
Impact of COVID-19, page 54

11.      We note your disclosure related to disruption in executing follow up
visits and mitigation
         efforts. To the extent you had participants drop out of clinical
trials, were not able to
         conduct follow up visits or need to increase the number of
participants for any other
         reason related to pandemic related disruptions, please expand your
disclosure to discuss
         these impacts and consider applicable risk factor disclosure.
Management   s Discussion and Analysis of Financial Conditions and Results of
Operations
Results of Operations
Research and Development Expenses, page 57

12.      Given the importance of your research and development expenses to your
operations,
         please consider including disaggregated disclosure of the nature of
expenses incurred for
         each period.
Emerging Growth Company Status, page 63

13.      Here and on page 7 you state you have elected to take advantage of the
extended transition
         period for complying with new or revised accounting standards under
Section 107(b) of
         the JOBS Act. However, your risk factor disclosure on page 41 states
that you have
         irrevocably elected not to avail yourselves of this exemption from new
or revised
         accounting standards. Please correct these apparent inconsistencies.
If you elect to opt
         out of these provisions, please indicate as such on the cover page.
Our Strategy, page 64

14.      Please remove statements that your grant funding awards "demonstrate
the acceptance and
         support by the scientific community, giving high credibility to our
programs," as many
 Geoff Green
FirstName LastNameGeoff  Green
LONGEVERON      LLC
Comapany9,
December  NameLONGEVERON
             2020              LLC
December
Page 4    9, 2020 Page 4
FirstName LastName
         research programs supported by the scientific community fail to
achieve FDA approval.
Clinical Development Pipeline, page 66

15.      With respect to Aging Frailty and Metabolic Syndrome, please also
include in your
         discussion that according to the FDA, neither of such indications
presently have
         definitions that are acceptable for characterizing the conditions for
regulatory purposes
         and that the FDA and the Japanese PMDA have both indicated that the
concept of
            Frailty    or the Metabolic Syndrome as an indication will require
additional clinical data
         and discussion before future pivotal trials and marketing
authorization.
License Agreements and Strategic Collaborations, page 68

16.      With respect to the License Agreement with the University of Miami,
describe the nature
         of the use granted. For example, were you granted a worldwide
exclusive license to
         develop and commercialize the intellectual property. Please also
disclose the royalty term
         and the termination provisions under the agreement and quantify
amounts paid to date, if
         any
17.      With respect to the License Agreement with JMHMD Holdings, describe
the nature of the
         use granted. Please also disclosure the royalty term and termination
provisions. We also
         note your disclosure that there were no license fees due during the
nine months ended
         September 30, 2020 and 2019 pertaining to this agreement. Please
revise your disclosure
         to disclose the aggregate amounts paid under the agreement and
potential milestone
         payments, if any.
U.S. Phase 2b Multicenter, Randomized, Double-Blinded, Placebo-Controlled
Trial, page 72

18.      We note your discussion of the Phase 2b clinical trial for your Aging
Frailty
         Program. Please clarify whether there was a Phase Phase 2a trial and
whether it has been
         completed.
Lomecel-B for Hypoplastic Left Heart Syndrome (HLHS), page 81

19.      We note your disclosure that HLHS is an ultra-rate indication and
would therefore qualify
         for an orphan drug designation and potentially for orphan drug
exclusivity if FDA
         approved and that you may have the opportunity to pursue one of the
FDA   s expedited
         review programs for this use. Please revise your disclosure to
clarify, if true, that the FDA
         has not given any indication as to whether your product candidate will
receive
         an orphan drug designation or exclusivity or be permitted to use
expedited regulatory
         pathways.
Experts, page 131

20.      Your expert language here only refers to the financial statements at
December 31, 2019
         and for the year then ended. Please revise to cover the same periods
as the auditor   s
         report on page F-2.
 Geoff Green
LONGEVERON LLC
December 9, 2020
Page 5
Financial Statements
Note 2. Summary of Significant Accounting Policies
Inventory, page F-7

21.      Here you refer to a biological segment of your operations. Please
clarify for us, and revise
         if necessary, whether you have reporting segments as defined under ASC
280. If so,
         please provide the required disclosures under ASC 280-10-50.
Intangible Assets, page F-8

22.      Here you disclose that intangible assets include legal costs incurred
related to patents and
         trademarks. You also disclose on page 55 that general and
administrative expenses
         include legal fees relating to intellectual property. Please reconcile
the two statements for
         us including clarifications for the nature of costs, and timing for
asset recognition. Revise
         your disclosures if necessary. Please cite the relevant accounting
references in your
         response.
Note 8. Commitments and Contingencies
Exclusive Licensing Agreements , page F-16

23.      Please explain to us, and revise if necessary, how these licensing
agreements contributed
         to your intangible assets disclosed on page F-8. Also, revise to
disclose where you have
         included the annual fees paid under the UM agreement and the legal
fees paid under the
         CD271+ agreement in the financial statements.
Exhibits

24.      Please file the promissory note evidencing the Company's PPP loan as
an exhibit to the
         registration statement, pursuant to Item 601(b)(10) of Regulation S-K.
Alternatively,
         please explain to us why such disclosure is not required.
       You may contact Li Xiao at 202-5514391 or Lynn Dicker at 202-551-3616 if
you have
questions regarding comments on the financial statements and related matters.
Please contact
Deanna Virginio at 202-551-4530 or Suzanne Hayes at 202-551-3675 with any other
questions.



FirstName LastNameGeoff Green                                   Sincerely,
Comapany NameLONGEVERON LLC
                                                                Division of
Corporation Finance
December 9, 2020 Page 5                                         Office of Life
Sciences
FirstName LastName