# Third Rock Ventures

Third Rock Ventures is a Venture Capital based in Boston, United States.

## Overview

- **Organization type:** Venture Capital
- **Headquarters:** Boston, United States
- **Region:** North America
- **Address:** Boston, MA, United States
- **Founded:** 2007
- **Assets under management:** Undisclosed
- **Website:** www.thirdrockventures.com
- **LinkedIn:** https://www.linkedin.com/company/third-rock-ventures
- **Wikidata:** Q16894994

## Regulatory record

- **CRD number:** 161185
- **SEC file number:** 802-75143
- **Registration status:** Registered
- **Reports private funds:** Yes
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/161185

## About

Third Rock Ventures is a collaborative group driven by the same goal: to create sustainable companies that translate scientific innovation to transform the lives of patients. The firm seeks to address society’s greatest unmet medical needs and is not afraid to do the difficult things. It reports 73 portfolio companies and 26 marketed products, with patients as its priority.

## Sectors

- Digital Health
- Healthcare Services

## Offices

- San Francisco, CA, United States

## People

- Mark Levin — Partner
- Kevin Starr — Partner
- Robert Tepper — Partner
- Reid Huber — Partner
- Jeffrey Tong — Partner

## Questions

### How does Third Rock Ventures originate its investment opportunities?

Third Rock does not accept unsolicited business plans or pitch decks. The firm's partners identify scientific breakthroughs through their academic networks and internal ideation process, then build companies around those discoveries. Entrepreneurs and scientists are recruited as founders after the initial therapeutic hypothesis, IP strategy, and corporate structure have already been designed by Third Rock's internal team.

### How is Third Rock different from a traditional venture capital firm?

Third Rock operates as a company-creation platform rather than a conventional fund manager. Portfolio companies are conceived, incorporated, and housed within Third Rock's offices for the first two to three years of development. The firm staffs initial management roles internally before recruiting external CEOs and scientific leadership, effectively functioning as a biotech incubator with dedicated capital rather than an investor selecting among external startups.

### What therapeutic areas and modalities does Third Rock focus on?

Third Rock invests exclusively in biotechnology and life sciences, with particular emphasis on drug discovery, precision medicine, gene therapy, cell therapy, and genomic medicine. The firm has built companies across oncology, rare disease, immunology, and neuroscience. Investments span therapeutic modalities from small molecules to biologics to CRISPR-based gene editing.

### Who makes investment decisions at Third Rock Ventures?

The partnership group makes investment decisions collectively. Founding partners Mark Levin, Kevin Starr, and Robert Tepper established the firm, with partners Reid Huber and Jeffrey Tong later joining the leadership. The firm's scientific advisory network, drawn from leading academic medical centers, plays a significant role in evaluating scientific platforms during the company-formation phase.

## Related profiles

- [Third Prime Capital](https://altss.com/profile/third-prime-capital)
- [Third Rome Investment Solutions](https://altss.com/profile/third-rome-investment-solutions)

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Last updated: 2026-08-11T15:08:18.003Z

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