X4 Pharmaceuticals, Inc. (XFOR)
Nasdaq: XFOR · Biological Products, (No Diagnostic Substances) · Boston, MA · filing with the SEC since 2010
Filings
440 filings since 2017 beside 371 insider forms · Non-accelerated filer and smaller reporting company · read from EDGAR on Nov 13, 2026Due nextNon-accelerated filer and smaller reporting company
10-K
Annual report for the fiscal year ending Dec 31, 2026Non-accelerated filers and smaller reporting companies have 90 days after the fiscal year ends.
by Mar 31, 2027
10-Q
Quarterly report for the quarter ending Mar 31, 2027Non-accelerated filers and smaller reporting companies have 45 days after the quarter ends; quarter ends are taken to the month end.
by May 15, 2027
A deadline is the latest date the SEC's rules allow for its filer category. It is not a forecast of the day the company files. The proxy statement was last filed Mar 20, 2026.
Filings a yearinsider forms included
97748098103878850
2026 counts to Nov 13, 2026.
Officer or director change (8-K item 5.02): 7 times in the last 36 months, the newest Jul 1, 2026.Listing warning from its exchange (8-K item 3.01): 2 times in the last 36 months, the newest Aug 16, 2024.SEC letters: 7 in the last 36 months, the newest May 12, 2026.
Insider forms (3, 4, 5 and 144) are counted each year but not listed here; the people and their trades are on the Ownership tab.
FiledFormWhat it is, in plain wordsPeriodAsk
Oct 8, 2026
8-K items 1.01, 1.02, 2.03, 3.02, 7.01, 9.01
Major agreement signed; Major agreement ended; New debt or obligation taken on; Shares sold without registration; Investor disclosure (Regulation FD) · Current report
Oct 7, 2026
Jul 1, 2026
8-K items 5.02, 7.01, 9.01
Officer or director change; Investor disclosure (Regulation FD) · Current report
Jun 30, 2026
May 13, 2026
8-K/A items 5.02, 5.07, 9.01
Officer or director change; Shareholder vote · Current report, amended
May 11, 2026
May 12, 2026
8-K items 5.02, 5.07
Officer or director change; Shareholder vote · Current report
May 11, 2026
40 of 440 shown
Every row opens the filing on EDGAR. The plain words are the site's own for each form and each 8-K item; the complete history, insider forms included, is on EDGAR.