Mark Fox works as an Investor at Ghost Tree Partners. The firm's known portfolio counts 6 companies.
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Investment focus
- Stage
- Late-StageSeed
Contacts
Affiliated funds' portfolios
Investor at Ghost Tree Partners, whose known portfolio counts 6 companies
- Embr Labs
- Anonos
- ConTIPI Medical
- Job.com
- Position Imaging
- Blue Spark Technologies
Investor Profile
Mark Fox is listed against focus areas Direct Lending and Private Credit in the database.
Ghost Tree Partners appears in Late-Stage and Seed rounds across its known deals.
The firm portfolio and the focus above give founders context on whether Mark Fox matches their raise.
Colleagues at Ghost Tree Partners
Frequently asked questions
Who is Mark Fox?
Mark Fox is a private equity investor and venture debt investor based in Darien, Connecticut, United States, listed as Investor at Ghost Tree Partners. The known portfolio of that firm counts 6 companies. That portfolio belongs to the firm, not to Mark Fox personally.
What does Mark Fox invest in?
Listed focus areas include Direct Lending and Private Credit. Those tags come from the portfolios of the firms this profile is attached to, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Mark Fox invest at?
Ghost Tree Partners appears in Late-Stage and Seed rounds across its known deals, and Mark Fox is listed there as Investor. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
Which firm is Mark Fox listed at?
Mark Fox is listed as Investor at Ghost Tree Partners. One other person in the database shares a firm with Mark Fox.
How do I contact Mark Fox?
An email address, a phone number and a LinkedIn page are on file for Mark Fox. The address stays masked on this page and is readable inside RaiseHunt after you create an account.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal