John Diekman

Founding and Managing Partner, 5AM Ventures
John Diekman, a Princeton- and Stanford-trained chemist, uniquely combines building platform biotech companies and investing—he led Affymetrix, ran Affymax, founded two venture firms, and chairs research institutions.
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Stages their fund invests in
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Avg Check
$100K - $5M
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Does their fund Lead?
Yes
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Geos their fund invests in
USA
John Diekman
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Sectors their fund invests in
Biotech
Health
Medtech
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$100K - $5M
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Yes
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About John Diekman

John Diekman is a Princeton- and Stanford-trained chemist who founded two venture capital firms (Bay City Capital and 5AM Ventures) after serving as CEO of Affymetrix and Managing Director of Affymax, giving him rare experience both building platform biotech companies and investing in them. He holds leadership positions at major research institutions including Chairman of The Scripps Research Institute and Charter Trustee of Princeton University, while also chairing Princeton's Art Museum Advisory Council and serving as an Honorary Officer of the Order of Australia.

About their Fund

Sectors
Biotech, Health, Medtech
Rounds
Seed - Series A
Avg Check Size
$100K - $5M

5AM Ventures focuses exclusively on the earliest stages of life sciences companies, often investing at or before seed stage and operating an in-house company-creation engine called the "4:59 Initiative" that builds companies from basic scientific breakthroughs toward Series A financing. The firm combines unusually hands-on involvement—with partners taking short-term operating roles and remaining deeply engaged throughout a company's life—alongside a systematic focus on capital efficiency and faster realizations in a sector typically known for long timelines.

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