# Claudia Mitchell

> Claudia Mitchell is a startup investor at Reaction. See 0 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Reaction](https://shizune.co/investors/profile/reaction-fund)
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/claudiamitchell/

Claudia Mitchell is a startup investor at Reaction. Claudia Mitchell is the former CEO and co-founder of Universal Cells Inc. She previously co-founded Halo-Bio RNAi Therapeutics, a biotech start-up company developing new RNAi molecules, and served as its Chief Scientific Officer from 2008 to 2011. Besides being a biotech entrepreneur, Claudia has also held positions in the non-profit sector and inacademia; she worked as the Program Director at the LGMD2I Research Fund, a family non-profit foundation, and has held a tenured Academic research position at the French National Institute of Medical Research (INSERM).She received a Masters in Molecular Virology from the Federal University of Rio de Janeiro, Brazil, a Ph.D. in Molecular Biology from the University of Paris and an Executive MBA from the Ecole des Ponts Business School, Paris, France.

## About Reaction

VC Fund · Palo Alto, United States

Reaction Fund is a venture capital firm owned and operated by 150 founding partners and Stanford Business alumni.

5 contacts available at Reaction.

| Name | Title | Profile |
| --- | --- | --- |
| Algernon Callier | Founding Partner | https://shizune.co/investors/profile/algernon-callier |
| Bill Ozturk | Founding Partner | https://shizune.co/investors/profile/bill-ozturk |
| Bruno Cheron | Founding Partner | https://shizune.co/investors/profile/bruno-cheron |
| Carlos Moreira Jr. | Founding Partner | https://shizune.co/investors/profile/carlos-moreira-jr |
| Claudia Mitchell | Founding Partner | https://shizune.co/investors/profile/claudia-mitchell |

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