Pathos
Chicago, US · Founded 2020 · 3 known investors
Find your way into Pathos
391 people in our graph share verified history with the Pathos team — schools, employers, funds. One of them is your warm intro.
Pathos applies AI, biological modeling, and a large collection of multimodal oncology patient data to develop cancer drugs and accelerate clinical development. It operates the PathOS platform with engines for asset selection, clinical trial execution, and an oncology foundation model.
Founders & leadership
Pathos was founded in 2020 by Eric Lefkofky, Eric Lefkofsky, and Ryan Fukushima.







Board


Investors · 3
Reported raises · per SEC filings
Form D private placements$365M disclosed across 3 rounds · 2023–2025
▶$283MraisedMay 2025 · 11 investors · BiotechnologyRule 506(b)
- Ryan FukushimaExecutive Officer, Director
- Mohamad MakhzoumiDirector
- Alex DolanExecutive Officer
- Andrew HeinleinExecutive Officer
- Tyrell RiversDirector
- Amit MehtaDirector
- Eric LefkofkyExecutive Officer, Director
- Offering amount
- $400M
- Amount sold
- $283M
- First sale
- Apr 2025
- Incorporated
- Corporation, Delaware, 2020
- Federal exemptions
- 06b
▶$62MraisedNov 2024 · 13 investors · BiotechnologyRule 506(b)
- Eric LefkofkyExecutive Officer, Director
- Amit MehtaDirector
- Ryan FukushimaExecutive Officer, Director
- Andrew HeinleinExecutive Officer
- Mohamad MakhzoumiDirector
- Alex DolanExecutive Officer
- Offering amount
- $62M
- Amount sold
- $62M
- First sale
- Oct 2024
- Incorporated
- Corporation, Delaware, 2020
- Federal exemptions
- 06b
▶$20MraisedMar 2023 · 4 investors · BiotechnologyRule 506(b)
- Ryan FukushimaExecutive Officer, Director
- Eric LefkofskyExecutive Officer, Director
- Offering amount
- $40M
- Amount sold
- $20M
- First sale
- Feb 2023
- Incorporated
- Corporation, Delaware, 2020
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Founder mafia
3 people who came through Pathos went on to found or lead other companies.
In the news
Frequently asked questions
- What does Pathos do?
- Pathos applies AI, biological modeling, and a large collection of multimodal oncology patient data to develop cancer drugs and accelerate clinical development. It operates the PathOS platform with engines for asset selection, clinical trial execution, and an oncology foundation model.
- Who founded Pathos?
- Pathos was founded by Eric Lefkofky, Eric Lefkofsky, Ryan Fukushima in 2020.
- Who are Pathos's investors?
- Pathos's investors include Cota Capital, Lightbank, New Enterprise Associates (NEA).
- How much funding has Pathos raised?
- Pathos has disclosed $365M raised across 3 rounds.
- Where is Pathos headquartered?
- Pathos is headquartered in Chicago, US.


