0001193125-21-369745.txt : 20220201 0001193125-21-369745.hdr.sgml : 20220201 20211230073559 ACCESSION NUMBER: 0001193125-21-369745 CONFORMED SUBMISSION TYPE: CORRESP PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20211230 FILER: COMPANY DATA: COMPANY CONFORMED NAME: X4 Pharmaceuticals, Inc CENTRAL INDEX KEY: 0001501697 STANDARD INDUSTRIAL CLASSIFICATION: BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836] IRS NUMBER: 273181608 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: CORRESP BUSINESS ADDRESS: STREET 1: 61 NORTH BEACON STREET STREET 2: 4TH FLOOR CITY: BOSTON STATE: MA ZIP: 02134 BUSINESS PHONE: 857-529-8300 MAIL ADDRESS: STREET 1: 61 NORTH BEACON STREET STREET 2: 4TH FLOOR CITY: BOSTON STATE: MA ZIP: 02134 FORMER COMPANY: FORMER CONFORMED NAME: Arsanis, Inc. DATE OF NAME CHANGE: 20100920 CORRESP 1 filename1.htm CORRESP

X4 PHARMACEUTICALS, INC.

61 North Beacon Street, 4th Floor

Boston, MA 02134

December 30, 2021

VIA EDGAR

United States Securities and Exchange Commission

Division of Corporation Finance

100 F Street, N.E.

Washington, D.C. 20549

Attn:

Jordan Nimitz

 

RE:

X4 Pharmaceuticals, Inc.

    

Registration Statement on Form S-3

    

File No. 333-261871

 

    

Acceleration Request

Requested Date:    January 3, 2022
Requested Time:    4:00 p.m. Eastern Time

Ladies and Gentlemen:

Pursuant to Rule 461 under the Securities Exchange Act of 1933, as amended, the undersigned registrant hereby requests that the Securities and Exchange Commission take appropriate action to cause the above-referenced Registration Statement on Form S-3 (File No. 333-261871) (the “Registration Statement”) to become effective at 4:00 p.m. Eastern Time on Monday, January 3, 2022, or as soon thereafter as is practicable.

Once the Registration Statement has been declared effective, please orally confirm that event with Daniel I. Goldberg of Cooley LLP, counsel to the registrant, at (212) 479-6722.

[Signature page follows]

Sincerely,
X4 PHARMACEUTICALS, INC.
By:  

/s/ Adam S. Mostafa

  Adam S. Mostafa
  Chief Financial Officer

 

cc:

Paula Ragan, Ph.D., Chief Executive Officer, X4 Pharmaceuticals, Inc.

    

Derek Meisner, Chief Legal Officer, X4 Pharmaceuticals, Inc.

    

Daniel I. Goldberg, Cooley LLP

    

Courtney T. Thorne, Cooley LLP