0001628280-24-027677.txt : 20240611 0001628280-24-027677.hdr.sgml : 20240611 20240611161325 ACCESSION NUMBER: 0001628280-24-027677 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240610 FILED AS OF DATE: 20240611 DATE AS OF CHANGE: 20240611 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Aliski William CENTRAL INDEX KEY: 0001598426 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38295 FILM NUMBER: 241035906 MAIL ADDRESS: STREET 1: C/O ULTRAGENYX PHARMACEUTICAL INC. STREET 2: 60 LEVERONI COURT CITY: NOVATO STATE: CA ZIP: 94949 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: X4 Pharmaceuticals, Inc CENTRAL INDEX KEY: 0001501697 STANDARD INDUSTRIAL CLASSIFICATION: BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836] ORGANIZATION NAME: 03 Life Sciences IRS NUMBER: 273181608 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 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 4 1 wk-form4_1718136796.xml FORM 4 X0508 4 2024-06-10 0 0001501697 X4 Pharmaceuticals, Inc XFOR 0001598426 Aliski William C/O X4 PHARMACEUTICALS, INC. 61 NORTH BEACON STREET 4TH FLOOR BOSTON MA 02134 1 0 0 0 0 Common Stock 2024-06-10 4 A 0 45000 0 A 96667 D Represents restricted stock units (RSUs) granted to the Reporting Person as an annual award for service on the Board of Directors. The RSUs will vest in full on the earlier of (i) the one-year anniversary of the grant date or (ii) the Issuer's next annual meeting of stockholders, subject to continued board service through the applicable vesting date. The RSUs will vest in full upon the occurrence of a change in control of the Issuer. /s/ Adam S. Mostafa, attorney-in-fact 2024-06-11