# Tyrell Rivers

> Tyrell Rivers is a Series A investor at MedImmune Ventures backing Health Care. See 1 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: Angel Investor
- Fund: [MedImmune Ventures](https://shizune.co/investors/profile/medimmune-ventures)
- Total investments: 1
- Last investment: Jun 2024
- Lead investor: 0%
- Last updated: Aug 2026

Tyrell Rivers is a Series A investor at MedImmune Ventures focused on Health Care. Tyrell joined MedImmune Ventures in 2009. Previously, he spent eight years at Merck where he most recently directed global business initiatives for securing catalysis technologies, clinical drug supply, and key CRO services to support the expanding R&D pipeline. At Merck, he also led technology innovation of live virus and conjugatedprotein vaccines, increasing operational efficiency and process reliability.Tyrell earned his B.S. in Chemical Engineering from the Massachusetts Institute of Technology, a Ph.D. in Chemical Engineering from University of Texas at Austin, and his M.B.A. from the New York University Stern School of Business.

## Contacts

5 contacts available for Tyrell Rivers: work email, personal email, work phone, personal phone and socials. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-email/tyrell-rivers?utm_source=investor_profile

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Nucleus RadioPharma | Nucleus RadioPharma is a new company that was founded to ensure that cancer patients have access to potentially life-saving radiopharmaceuticals by developing technologies to modernise the clinical development, manufacturing, and supply chain of these promising new therapies. |  | Series A | Jun 05, 2024 |  |

1 of 1 investments shown.

## About MedImmune Ventures

VC Fund · Gaithersburg, United States

MedImmune Ventures invests in early to late stage, public and private biotechnology companies.

3 contacts available at MedImmune Ventures.

| Name | Title | Profile |
| --- | --- | --- |
| Ron Laufer | Senior Managing Director | — |
| Tyrell Rivers | Senior Associate | — |
| Franklin H. Top | Vice President | — |

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## FAQ

### What does Tyrell Rivers invest in?

Tyrell Rivers invests primarily in Health Care startups, most often at Series A stage. Most of the 1 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### How do I contact Tyrell Rivers?

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### When did Tyrell Rivers last invest?

The most recent investment recorded for Tyrell Rivers closed in Jun 2024. Shizune tracks 1 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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