Redmile Group is an investment management firm that primarily focuses on investments in U.S. and non-U.S. healthcare companies, particularly in the biotechnology sector. The firm employs various strategies, including hedge fund and private equity approaches, often with a concentrated focus on clinical-stage biotechnology companies.
61% of their portfolio is in Biotech & Life Sciences. Average disclosed round size is $89.3M (across 35 rounds with reported amounts).
Portfolio
36
Fund Size
$4.8B
Top Stage
Series B
Last 12 Mo
4
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
36 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Ambrosia Biosciences Inc. | Series B | $100M | Mar 2026 |
 Bambusa Therapeutics | Series A | — | Nov 2025 |
 Electra Therapeutics | Series C | $183M | Oct 2025 |
 One Biosciences | Series A | $15M | Jul 2025 |
| Bambusa Therapeutics | Series A | $90M | Feb 2025 |
| RRAPT Therapeutics, Inc. | Series D | $150M | Dec 2024 |
 Lycia Therapeutics, Inc. | Series C | $106.6M | May 2024 |
 Attovia Therapeutics | Series B | $105M | May 2024 |
 Employer Direct Healthcare | Growth | $92M | Dec 2023 |
 Mammoth Biosciences | Series D | $150M | Sep 2021 |
 Mnemo Therapeutics | Series A | $90M | Jun 2021 |
 Ceribell, Inc. | Series C | $53M | Apr 2021 |
 AbSci | Growth | $125M | Mar 2021 |
| AAgomAb Therapeutics | Series B | $74M | Mar 2021 |
 Amunix Pharmaceuticals, Inc. | Series B | $117M | Mar 2021 |
 Evox Therapeutics | Series C | $95.4M | Feb 2021 |
 Genalyte | Series C | $50M | Jan 2021 |
 Neuron23 | Series B | $113.5M | Dec 2020 |
 Science 37 | Series B | $40M | Aug 2020 |
 Annexon, Inc. | Series D | $100M | Jul 2020 |
 CorVent Medical | Seed | $4.5M | May 2020 |
| EElevateBio | Series B | $170M | Mar 2020 |
 Sonendo, Inc. | Growth | $85M | Jan 2020 |
 Augmedix | Series B | $19M | Oct 2019 |
 IGM Biosciences | Series C | $102M | Jul 2019 |
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Top Co-Investors
Janus Henderson Investors8 shared
Perceptive Advisors6 shared
Invus6 shared
RA Capital Management5 shared
Cormorant Asset Management4 shared
Casdin Capital4 shared
OrbiMed4 shared
Sofinnova Partners3 shared
ArrowMark Partners3 shared
Bain Capital Life Sciences3 shared
Surveyor Capital3 shared
Deep Track Capital3 shared
RTW Investments3 shared
Khosla Ventures2 shared
HBM Partners2 shared
Rock Springs Capital2 shared
venBio2 shared
Versant Ventures2 shared
DCM Ventures2 shared
Alexandria Venture Investments2 shared
Last updated: 16 April 2026