Registered entities
X4 Pharmaceuticals, Inc.
Reg. No. 46-1117454United States
X4 PHARMACEUTICALS, INC
Reg. No. 1501697United States
X4 Pharmaceuticals, Inc.
Reg. No. 214189094United States
Innovation
33 patent families (9 granted) — focus: Human necessities, Chemistry & metallurgy, Physics & computing; filing pace slowing. Cited 8,842 times.
| Year | Filings |
|---|---|
| 2017 | 8 |
| 2018 | 5 |
| 2019 | 11 |
| 2020 | 10 |
| 2021 | 14 |
| 2022 | 11 |
| 2023 | 12 |
| 2024 | 11 |
| 2025 | 10 |
| 2026 | 3 |
Social engagement
Social engagement: 14K social following, 3 posts in the last 12 months — around the industry typical range.
Investor mix
22 investors on record; lead investors include Coastlands Capital; 1 has since exited.
| Investor type | Count | Share |
|---|---|---|
| Venture capital | 13 | 59% |
| Private equity | 2 | 9% |
| Bank & private debt | 1 | 5% |
| Other / undisclosed | 6 | 27% |
Hiring activity
No recent openings observed
No roles tracked in the last 12 months
2 Jan 2025 · Senior Medical Director, Medical Affairs · Boston
4 Nov 2024 · Vice President, Information Technology · Boston
11 Aug 2024 · Director, Strategic Project Management - Clinical Development · Boston
Based on job postings tracked across public sources.