
Boxer Capital of the Tavistock Group
Boxer Capital is a San Diego-based biotechnology investment firm and the life sciences investment arm of Tavistock Group, the family office of Joe Lewis. Founded in 2005, it invests across the entire drug development lifecycle in specialized and precision medicine companies across both private and public markets.
58% of their portfolio is in Biotech & Life Sciences. They made 3 investments in the last 12 months. Their most common stage is series-b (44% of deals). Average disclosed round size is $156.3M (across 50 rounds with reported amounts).
Portfolio
41
Fund Size
—
Top Stage
Series B
Last 12 Mo
3
Team
Dominik Naczynski
Managing Director
Ivan Lieberburg
Managing Director
Norman Z.
Managing Director
Alec Jones
Senior Associate
Peter Harwin
Senior Associate
Tony Huang
Biotech Investing
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
Portfolio
| Company | Round | Amount | Date |
|---|---|---|---|
| Series B | $5M | Apr 2026 | |
| Series B | $250M | Jan 2026 | |
| Series B | $250M | Jan 2026 | |
| MMirador Therapeutics | Unknown | $250M | Jan 2025 |
| Series B | $250M | Jan 2025 | |
| Series B | $126M | Aug 2024 | |
| Series B | $35M | Apr 2024 | |
| AAlterome | Series B | $132M | Apr 2024 |
| Unknown | $400M | Mar 2024 | |
| Series C | $55M | Jan 2024 | |
| HHalda Therapeutics | Series B | $126M | Jan 2024 |
| Series B | $132M | Jan 2024 | |
| AAsher Biotherapeutics | Series C | $55M | Jan 2024 |
| Series B | $121M | Dec 2023 | |
| Series B | $123M | Mar 2023 | |
| Series B | $121M | Jan 2023 | |
| Unknown | $225M | Jan 2022 | |
| LLusaris Therapeutics | Series A | $60M | Jan 2022 |
| Series A | $64M | Jan 2022 | |
| Series D | $140M | Nov 2021 | |
| AAsher Biotherapeutics | Series B | $108M | Sep 2021 |
| Series B | $100M | Apr 2021 | |
| Series A | $55M | Mar 2021 | |
| AAsher Biotherapeutics | Series A | $55M | Mar 2021 |
| Series C | $160M | Mar 2021 |
Top Co-Investors
Last updated: 7 October 2026