0001231919-23-000037.txt : 20230601 0001231919-23-000037.hdr.sgml : 20230601 20230601164001 ACCESSION NUMBER: 0001231919-23-000037 CONFORMED SUBMISSION TYPE: D PUBLIC DOCUMENT COUNT: 1 ITEM INFORMATION: 06b FILED AS OF DATE: 20230601 DATE AS OF CHANGE: 20230601 EFFECTIVENESS DATE: 20230601 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: D SEC ACT: 1933 Act SEC FILE NUMBER: 021-483142 FILM NUMBER: 23985291 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 D 1 primary_doc.xml X0708 D LIVE 0001501697 X4 Pharmaceuticals, Inc 61 NORTH BEACON STREET 4TH FLOOR BOSTON MA MASSACHUSETTS 02134 857-529-8300 DELAWARE Arsanis, Inc. Corporation true Paula Ragan 61 North Beacon Street 4th Floor Boston MA MASSACHUSETTS 02134 Executive Officer Director Adam Mostafa 61 North Beacon Street 4th Floor Boston MA MASSACHUSETTS 02134 Executive Officer Mary DiBiase 61 North Beacon Street 4th Floor Boston MA MASSACHUSETTS 02134 Executive Officer Mark Baldry 61 North Beacon Street 4th Floor Boston MA MASSACHUSETTS 02134 Executive Officer Arthur Taveras 61 North Beacon Street 4th Floor Boston MA MASSACHUSETTS 02134 Executive Officer Murray Stewart 61 North Beacon Street 4th Floor Boston MA MASSACHUSETTS 02134 Executive Officer Director William Aliski 61 North Beacon Street 4th Floor Boston MA MASSACHUSETTS 02134 Director Alison Lawton 61 North Beacon Street 4th Floor Boston MA MASSACHUSETTS 02134 Director Gary Bridger 61 North Beacon Street 4th Floor Boston MA MASSACHUSETTS 02134 Director Francoise de Craecker 61 North Beacon Street 4th Floor Boston MA MASSACHUSETTS 02134 Director David McGirr 61 North Beacon Street 4th Floor Boston MA MASSACHUSETTS 02134 Director Michael Wyzga 61 North Beacon Street 4th Floor Boston MA MASSACHUSETTS 02134 Director Biotechnology Decline to Disclose 06b false 2023-05-18 false true true true false 0 Stifel, Nicolaus & Company, Inc. 793 None None One South Street, 15th Floor Baltimore MD MARYLAND 21202 CT CONNECTICUT DE DELAWARE FL FLORIDA MD MARYLAND MA MASSACHUSETTS NY NEW YORK OR OREGON false Piper Sandler & Co. 665 None None 800 Nicollet Mall, Suite 900 Minneapolis MN MINNESOTA 55402 CT CONNECTICUT DE DELAWARE FL FLORIDA MD MARYLAND MA MASSACHUSETTS NY NEW YORK OR OREGON false Cantor Fitzgerald & Co. 134 None None c/o Cantor Fitzgerald Investors, LLC 110 E. 59th Street New York NY NEW YORK 10022 CT CONNECTICUT DE DELAWARE FL FLORIDA MD MARYLAND MA MASSACHUSETTS NY NEW YORK OR OREGON false 65023725 65015462 8263 "Total Offering Amount" includes amounts receivable by the Issuer upon the exercise of certain warrants to purchase the Issuer's Common Stock (assuming no cashless exercise). false 22 4000000 true 0 0 false X4 Pharmaceuticals, Inc /s/ Adam Mostafa Adam Mostafa Chief Financial Officer 2023-06-01