United Therapeutics
Venture capital · Silver Spring, Maryland, United States
Portfolio collected from the firm’s website, last checked Jun 28, 2026.Raises and exits come from each company’s own SEC and company records.
8Deep-tech portfolio5 active
3Portfolio exitsAcquired or listed
0Raises, 12 monthsLatest: iTolerance
2Co-investorsShare a portfolio company
Portfolio companies’ first raises and first grants, by year
First raisesFirst federal grants
The year each portfolio company first filed a Form D, and first won a federal grant. These describe the companies, not when this investor joined them.
Portfolio · 8 companies
| Company | Sector | Status | Latest raise | Raised |
|---|---|---|---|---|
| iTolerance | Biotech | Active | Feb 4, 2022 | $5.2M |
| Lung Biotechnology | Biotech | Active | — | — |
| Lung Biotechnology PBC | Biotech | Active | — | — |
| Marathoner Biosciences | Biotech | Active | — | — |
| TissUse | Biotech | Active | — | — |
| 3D Systems | Biotech | Public | Dec 8, 2021 | $127.4M |
| Allogene Therapeutics | Biotech | Public | Apr 19, 2018 | $411.8M |
| Arena Pharmaceuticals | Biotech | Acquired | Jun 21, 2010 | $187.3M |
Peer ranks
Portfolio size#53
Portfolio exits#69
Raises, 12 months#88
Co-investors#234
Co-investors
- Versant VenturesVenture capital1 shared
- Vida VenturesVenture capital1 shared
Sectors
- Biotech8
Portfolios are collected from investors’ own websites and matched to tracked deep-tech companies by name; duplicate listings of the same firm are merged. Exits and raises come from each company’s own record: Form D through the latest filing.