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Ratio Therapeutics
Boston, US · Delaware corporation · 7 known investors
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Ratio Therapeutics develops radiopharmaceuticals for oncology, working on targeted radiochemistry, discovery, and preclinical and clinical development. The company operates in the biotech and medtech space focused on molecular imaging and radiotherapy.
Founders & leadership
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Jack Hoppin, Ph.D.Chairman, Chief Executive Officer
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William CupeloChief Business Officer
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Matthias FriebeChief Technology OfficerDr. Matthias Friebe is Chief Technology Officer of Ratio Therapeutics, a radiopharmaceutical developer focused on oncology. He previously served as VP of Radiochemistry Research at Bayer HealthCare, co-founded Piramal Imaging where he led chemistry and manufacturing operations, and brings over two decades of experience in radiotherapy and molecular imaging probe development from roles at the Swiss Federal Institute of Technology and Harvard Medical School; he holds a PhD in Radiopharmaceutical Chemistry from the Technical University Dresden.
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Scott HolbrookChief Commercial and Manufacturing OfficerScott Holbrook is Chief Commercial and Manufacturing Officer at Ratio Therapeutics, a developer of radiopharmaceuticals for oncology. He has over 25 years of experience in molecular imaging and therapeutics, including target identification, GMP manufacturing, regulatory affairs, clinical development, and post-approval manufacturing.
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Marc BeckerChief Financial and Operating Officer
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Scott MacDonaldNamed on SEC filing
WC
William CowanNamed on SEC filing
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Susan WhoriskeyNamed on SEC filing
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Albert HolmanNamed on SEC filing
Investors · 7
Catalio Capital Management, LPlisted by Catalio Capital Management, LPNew York
How we know: Catalio Capital Management, LP's portfolio page · Not right? Tell us
Catalio Capital ManagementreportedNew York
How we know: offering press articles · press coverage · Not right? Tell us
Also in the syndicate · 5
Bristol Myers SquibbDuquesne Family OfficeEli LillyEli Lilly and CompanyWasatch Group
Reported raises · per SEC filings
Form D private placements$120.7M disclosed across 2 rounds · 2023–2026
▶$70MraisedJul 2026 · 57 investors · PharmaceuticalsRule 506(b)
▶$70MraisedJul 2026 · 57 investors · Pharmaceuticals
Rule 506(b)Officers, directors & promoters on the filing
- John W. HoppinExecutive Officer, Director
- John BabichDirector
- Marc BeckerExecutive Officer
- Scott MacDonaldExecutive Officer
- William CowanDirector
- Susan WhoriskeyDirector
- Albert HolmanDirector
- Allan GreenDirector
- Brandon IngersollDirector
- Offering amount
- $70M
- Amount sold
- $70M
- First sale
- Jul 2026
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$50.7MraisedDec 2023 · 46 investors · PharmaceuticalsRule 506(b)
▶$50.7MraisedDec 2023 · 46 investors · Pharmaceuticals
Rule 506(b)Officers, directors & promoters on the filing
- Allan GreenDirector
- Shawn HillierExecutive Officer
- Albert HolmanDirector
- Matthias FriebeExecutive Officer
- John W. HoppinExecutive Officer, Director
- Jacob HestermanExecutive Officer
- John BabichExecutive Officer, Director
- Reed MalleckExecutive Officer
- Scott HolbrookDirector
- John GarveyExecutive Officer
- Susan WhoriskeyDirector
- Offering amount
- $50.7M
- Amount sold
- $50.7M
- First sale
- Dec 2023
- Incorporated
- Corporation, Delaware, 2021
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
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In the news
Ratio Therapeutics Closes $70 Million Series C Financing to Advance Clinical Development of Targeted Radiotherapeutics Pipeline and Expand Manufacturing Infrastructure - BioSpacebiospace.com · Jul 2026Frequently asked questions
- What does Ratio Therapeutics do?
- Ratio Therapeutics develops radiopharmaceuticals for oncology, working on targeted radiochemistry, discovery, and preclinical and clinical development. The company operates in the biotech and medtech space focused on molecular imaging and radiotherapy.
- Who founded Ratio Therapeutics?
- Ratio Therapeutics was founded by John Babich, Jack Hoppin, Jack Hoppin, Ph.D..
- Who are Ratio Therapeutics's investors?
- Ratio Therapeutics's investors include Catalio Capital Management, LP, Catalio Capital Management.
- How much funding has Ratio Therapeutics raised?
- Ratio Therapeutics has disclosed $120.7M raised across 2 rounds.
- Where is Ratio Therapeutics headquartered?
- Ratio Therapeutics is headquartered in Boston, US.