Michael Diem
Senior Managing Partner, Pfizer Ventures and Vice President, Pfizer Worldwide Business Development at Pfizer
Philadelphia, United States
Michael Diem, Senior Managing Partner, Pfizer Ventures and Vice President, Pfizer Worldwide Business Development at Pfizer is an active investor based in Philadelphia, United States. This profile covers what Michael Diem backs, at which stage, and how founders can reach out in 2026.
Michael Diem is Senior Managing Partner at Pfizer Ventures, with global experience in the pharmaceutical and biotechnology industries.
Michael Diem invests in Healthcare & Biotech and Biotech & Pharma, typically at Early Stage Venture and Late Stage Venture.
- Investor type
- Corporate VC
- Stages
- Early Stage VentureLate Stage Venture
- Invests in
- Healthcare & BiotechBiotech & Pharma
- Location
- Philadelphia, United States
- Typical check
- $3.8M
How to reach Michael Diem
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Round Funded. "Michael Diem." Round Funded investor database, updated November 3, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/michael-diem
Frequently Asked Questions
Who is Michael Diem?
Michael Diem, Senior Managing Partner, Pfizer Ventures and Vice President, Pfizer Worldwide Business Development at Pfizer is an active investor based in Philadelphia, United States. Michael Diem invests in Healthcare & Biotech and Biotech & Pharma, typically at Early Stage Venture and Late Stage Venture.
What does Michael Diem invest in?
Michael Diem invests in Healthcare & Biotech and Biotech & Pharma, typically at Early Stage Venture and Late Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Michael Diem invest at?
Michael Diem typically invests at Early Stage Venture and Late Stage Venture. Lead with traction that fits the stage when you reach out.
What is Michael Diem's typical check size?
Michael Diem typically writes checks around $3.8M. Use it as a signal for whether your raise fits their stage.
How do founders reach investors like this?
Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.
What is Round Funded?
Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.