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Correspondence 0001193125-25-004512 from Metsera, Inc. (MTSR) (CIK 0002040807)

Metsera, Inc. (MTSR) (CIK 0002040807)
Date: Jan. 10, 2025 · CIK: 0002040807 · Accession: 0001193125-25-004512

AI Filing Summary & Sentiment

Referenced dates: December 26, 2024

Date
January 10, 2025
Author
/s/ Peter N. Handrinos
Form
CORRESP
Company
Metsera, Inc. (MTSR) (CIK 0002040807)

Letter

200 Clarendon Street

Boston, Massachusetts 02116

Tel: +1.617.948.6000 Fax: +1.617.948.6001

www.lw.com

FIRM / AFFILIATE OFFICES

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Paris

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January 10, 2025

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London

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Washington, D.C.

Madrid

VIA EDGAR AND ELECTRONIC MAIL

Division of Corporation Finance

Office of Life Sciences

U.S. Securities and Exchange Commission

100 F Street, N.E.

Washington, DC 20549-6010

Attention: Jason Drory

Chris Edwards

Tracie Mariner

Lynn Dicker

Re: Metsera, Inc.

Amendment No. 1 to Draft Registration Statement on Form S-1

Submitted December 12, 2024

CIK No. 0002040807

To the addressees set forth above:

We are in receipt of the letter dated December 26, 2024 from the staff of the U.S. Securities and Exchange Commission (the “Staff”) with respect to the above-referenced confidential draft Amendment No. 1 to Draft Registration Statement. We are responding to the Staff’s comments on behalf of Metsera, Inc. (“Metsera” or the “Company”) as set forth below. Simultaneously with the submission of this letter, the Company is publicly filing via EDGAR a Registration Statement on Form S-1 (the “Registration Statement”) responding to the Staff’s comments and updating its disclosures in the Registration Statement.

The Company’s responses set forth in this letter are numbered to correspond to the numbered comments in the Staff’s letter. All terms used but not defined herein have the meanings assigned to such terms in the Registration Statement. For ease of reference, we have set forth the Staff’s comments and the Company’s response for each item below.

January 10, 2025

Page 2

Amendment No. 1 to Draft Registration Statement on Form S-1

Our Approach, page 4

1. We note your response to prior comment 8, including your disclosure that the work was “initially led by Professor Stephen R. Bloom at his lab at Imperial College London,” and reissue. Please revise your disclosure here to clarify how you acquired your proprietary MINT peptide library or otherwise advise.

Response: In response to the Staff’s comment, the Company has revised the disclosure on pages 5 and 128 of the Registration Statement.

2. We note your response to prior comment 9 and reissue in part. In addition to disclosing your belief of their potential results when you state your belief that they may extend the duration of exposure to NuSH analog peptides, please revise your disclosure in your summary section to explain what prodrugs and antibody peptide conjugates are.

Response: In response to the Staff’s comment, the Company has revised the disclosure on pages 5, 9, 128 and 132 of the Registration Statement.

Our Pipeline and Programs, page 6

3. We note your response to prior comment 11 and reissue in part. Please revise your pipeline table to qualify your statement regarding the next anticipated milestone with respect to the MET-097i + MET-233i combination program. In this regard, we note that sufficient safety might not be established in the MET-233i Phase 1 trial.

Response: In response to the Staff’s comment, the Company has revised the disclosure on pages 7, 130 and 147 of the Registration Statement.

Summary Risk Factors, page 10

4. We note your response to prior comment 4 and reissue in part. Please revise your summary risk factor to disclose that you are currently conducting trials outside of the United States.

Response: In response to the Staff’s comment, the Company has revised the disclosure on pages 12 and 31 of the Registration Statement.

*********

January 10, 2025

Page 3

Any comments or questions regarding the foregoing should be directed to the undersigned at (617) 948-6060. Thank you in advance for your cooperation in connection with this matter.

Sincerely,
/s/ Peter N. Handrinos

Show Raw Text
CORRESP
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filename1.htm

CORRESP

200 Clarendon Street

Boston, Massachusetts 02116

 Tel: +1.617.948.6000 Fax: +1.617.948.6001

www.lw.com

 FIRM / AFFILIATE OFFICES

Austin

Milan

Beijing

Munich

Boston

New York

Brussels

Orange County

Century City

Paris

Chicago

Riyadh

January 10, 2025

Dubai

San Diego

Düsseldorf

San Francisco

Frankfurt

Seoul

Hamburg

Silicon Valley

Hong Kong

Singapore

Houston

Tel Aviv

London

Tokyo

Los Angeles

Washington, D.C.

Madrid

 VIA EDGAR AND ELECTRONIC MAIL

Division of Corporation Finance

 Office of Life Sciences

U.S. Securities and Exchange Commission

 100 F Street, N.E.

Washington, DC 20549-6010

Attention:
   Jason Drory

   Chris Edwards

   Tracie Mariner

   Lynn Dicker

Re:
 Metsera, Inc.

Amendment No. 1 to Draft Registration Statement on Form S-1

Submitted December 12, 2024

CIK No. 0002040807

 To the
addressees set forth above:

 We are in receipt of the letter dated December 26, 2024 from the staff of the U.S. Securities and
Exchange Commission (the “Staff”) with respect to the above-referenced confidential draft Amendment No. 1 to Draft Registration Statement. We are responding to the Staff’s comments on behalf of Metsera, Inc.
(“Metsera” or the “Company”) as set forth below. Simultaneously with the submission of this letter, the Company is publicly filing via EDGAR a Registration Statement on Form S-1 (the “Registration Statement”) responding to the Staff’s comments and updating its disclosures in the Registration Statement.

The Company’s responses set forth in this letter are numbered to correspond to the numbered comments in the Staff’s letter. All
terms used but not defined herein have the meanings assigned to such terms in the Registration Statement. For ease of reference, we have set forth the Staff’s comments and the Company’s response for each item below.

 January 10, 2025

Page 2

 Amendment No. 1 to Draft Registration Statement on Form
S-1

 Our Approach, page 4

1.
 We note your response to prior comment 8, including your disclosure that the work was
“initially led by Professor Stephen R. Bloom at his lab at Imperial College London,” and reissue. Please revise your disclosure here to clarify how you acquired your proprietary MINT peptide library or otherwise advise.

 Response: In response to the Staff’s comment, the Company has revised the disclosure on pages 5 and 128
of the Registration Statement.

2.
 We note your response to prior comment 9 and reissue in part. In addition to disclosing your
belief of their potential results when you state your belief that they may extend the duration of exposure to NuSH analog peptides, please revise your disclosure in your summary section to explain what prodrugs and antibody peptide conjugates
are.

 Response: In response to the Staff’s comment, the Company has revised the disclosure on
pages 5, 9, 128 and 132 of the Registration Statement.

 Our Pipeline and Programs, page 6

3.
 We note your response to prior comment 11 and reissue in part. Please revise your pipeline table
to qualify your statement regarding the next anticipated milestone with respect to the MET-097i + MET-233i combination program. In this regard, we note that sufficient
safety might not be established in the MET-233i Phase 1 trial.

Response: In response to the Staff’s comment, the Company has revised the disclosure on pages 7, 130 and 147 of the Registration
Statement.

 Summary Risk Factors, page 10

4.
 We note your response to prior comment 4 and reissue in part. Please revise your summary risk
factor to disclose that you are currently conducting trials outside of the United States.

Response: In response to the Staff’s comment, the Company has revised the disclosure on pages 12 and 31 of the Registration
Statement.

 *********

 January 10, 2025

Page 3

 Any comments or questions regarding the foregoing should be directed to the undersigned at
(617) 948-6060. Thank you in advance for your cooperation in connection with this matter.

Sincerely,

/s/ Peter N. Handrinos

 Peter N. Handrinos

 of LATHAM & WATKINS
LLP

 Enclosures

 cc: (via e-mail)

 Christopher Whitten Bernard, Chief Executive Officer, Metsera, Inc.

B. Shayne Kennedy, Latham & Watkins LLP

 J. Ross
McAloon, Latham & Watkins LLP

 Rachael Bushey, Goodwin Procter LLP

William D. Collins, Goodwin Procter LLP

 Adam V. Johnson, Goodwin
Procter LLP