John Orwin

Venture Partner at Samsara BioCapital ยท Joined 2024

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Biography

John Orwin joined Samsara BioCapital as a Venture Partner in 2024. The firm states he brings over 25 years of experience in the biotechnology and pharmaceutical industries, having held senior positions at Johnson & Johnson, Affymax, Rhone-Poulenc Rorer, Genentech and Relypsa. Most recently he was CEO of Atreca. He currently serves as Executive Chair and acting CEO at Agni Bio and as board chair of Synthekine, both described by the firm as its portfolio companies, and also serves as a Board Member of Travere Therapeutics and Board Chair of AnaptysBio. Previously he was Senior Vice President of the BioOncology Business Unit at Genentech, responsible for marketing, sales, business unit operations and pipeline brand management for Genentech's US oncology portfolio. He has also held senior marketing and sales positions at Johnson & Johnson, Alza Pharmaceuticals, Sangstat Medical Corporation, Rhone-Poulenc Rorer Pharmaceuticals and Schering-Plough Corporation. No education detail is published on the firm's team page.

Previous Experience

Notable Investments

SynthekineAgni Bio

Board Seats

Career Timeline

2024
Joins Samsara BioCapital as a Venture Partner.

Sources & References

Samsara BioCapital - Team page (roster and biography, checked 7 September 2026) โ†—