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CIK 0001501697 · Non-accelerated filer<br>Smaller reporting company

X4 Pharmaceuticals, Inc

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Ticker
XFOR
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
273181608
Phone
857-529-8300
Business address
61 NORTH BEACON STREET, 4TH FLOOR, BOSTON, MA, 02134
Former names
Arsanis, Inc.
  1. DEFA14A Proxy Proxy Materials
  2. 8-K Event Material agreement
  3. 425 Deal Prospectus/Communication re Business Combination
  4. DEFA14A Proxy Proxy Materials
  5. 8-K Event Agreement ended · Other events
  6. 425 Deal Prospectus/Communication re Business Combination
  7. EFFECT Other Notice of Effectiveness
  8. EFFECT Other Notice of Effectiveness
  9. 424B3 Offering Prospectus
  10. S-4/A Deal Registration Statement - Business Combination
  11. CORRESP Other Correspondence Between Filers and SEC Staff
  12. CORRESP Other Correspondence Between Filers and SEC Staff
  13. UPLOAD Other SEC-generated Letter
  14. UPLOAD Other SEC-generated Letter
  15. 8-K Event Debt accelerated
  16. S-3 Offering Registration Statement
  17. 8-K Event Executive or director change
  18. S-4 Deal Registration Statement - Business Combination
  19. 8-K Event Material agreement · Other events
  20. 425 Deal Prospectus/Communication re Business Combination

Page 34 of 41 · 818 filings