Phathom Pharmaceuticals
IPOLeading the way to innovative treatments for gastrointestinal diseases
Public · Florham Park, United States · Founded 2018 · $580.3M raised
- Headquarters
- Florham Park, New Jersey
- Employees
- 201–500
- Founded
- 2018
- Business Model
- B2B
- Website
- phathompharma.com
- Total Funding
- $580.3M
- Last Round
- $130.0M Venture RoundJan 2026
- Rounds
- 4
- Type
- Public
About
Phathom Pharmaceuticals is a biopharmaceutical company focused on developing and commercializing new treatments for acid-related gastrointestinal disorders. The company holds exclusive US, European, and Canadian rights to a potassium-competitive acid blocker (PCAB), a next-generation mechanism that offers an alternative to proton pump inhibitors for conditions such as erosive esophagitis and H. pylori infection.
Summary
Phathom Pharmaceuticals is a Biotech company based in Florham Park, United States, founded in 2018. It has raised $580.3M in total across 4 rounds, most recently a $130.0M Venture Round round in Jan 2026. Investors include SVB Capital and New Enterprise Associates.
Tech & App Stack
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Funding History
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Jan 2026
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Series A through Venture Round — per-round amounts, valuations, and who invested in each round.
Investors
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