Cover
Cover | Jan. 25, 2022 |
Cover [Abstract] | |
Document Type | 8-K/A |
Document Period End Date | Jan. 25, 2022 |
Entity Registrant Name | X4 PHARMACEUTICALS, INC. |
Entity Incorporation, State or Country Code | DE |
Entity File Number | 001-38295 |
Entity Tax Identification Number | 27-3181608 |
Entity Address, Address Line One | 61 North Beacon Street, |
Entity Address, Address Line Two | 4th Floor |
Entity Address, City or Town | Boston, |
Entity Address, State or Province | MA |
Entity Address, Postal Zip Code | 02134 |
City Area Code | 857 |
Local Phone Number | 529-8300 |
Written Communications | false |
Soliciting Material | false |
Pre-commencement Tender Offer | false |
Pre-commencement Issuer Tender Offer | false |
Title of 12(b) Security | Common Stock, par value $0.001 per share |
Trading Symbol | XFOR |
Security Exchange Name | NASDAQ |
Entity Emerging Growth Company | true |
Entity Ex Transition Period | true |
Entity Central Index Key | 0001501697 |
Amendment Flag | false |