Key facts
- It has raised $200K; the latest was Seed Round ($200K) in Dec 2025.
- X1 Biotech has filed 3 Form Ds with the SEC, most recently Dec 2025 ($95K sold to 5 investors).
- Status: Privately Held (backing).
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Funding rounds
No rounds on record
No funding rounds for X1 Biotech are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
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About X1 Biotech
Operator of a biotechnology company based in Needham, Massachusetts.
- Sector
- Healthcare
- HQ
- Needham, MA, United States
- Founded
- 2021
- Website
- x1biotech.com/
- Ownership
- Privately Held (backing)
PA Mark — not yet priced
X1 Biotech doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
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Recorded secondary trades
No prints on record
No secondary trades in X1 Biotech shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Pro members can request priority coverage with a 48-hour turnaround.
Institutional fund marks
No fund marks yet
No SEC-registered fund has reported a fair-value mark on X1 Biotech in its N-PORT filings yet. We sweep new filings monthly.
Pro members can request priority coverage with a 48-hour turnaround.