Registered entities
Stealth Biotherapeutics Inc.
Reg. No. 26-1512085United States
Innovation
95 patent families (39 granted) — focus: Human necessities, Chemistry & metallurgy, Physics & computing; filing pace steady. Cited 7,707 times.
| Year | Filings |
|---|---|
| 2015 | 12 |
| 2016 | 25 |
| 2017 | 21 |
| 2018 | 28 |
| 2019 | 35 |
| 2020 | 31 |
| 2021 | 31 |
| 2022 | 28 |
| 2023 | 30 |
| 2024 | 40 |
| 2025 | 35 |
| 2026 | 14 |
Social engagement
Social engagement: 15.2K social following, 9 posts in the last 12 months — below the industry typical range.
Investor mix
10 investors on record; lead investors include Nan Fung Life Sciences.
| Investor type | Count | Share |
|---|---|---|
| Venture capital | 4 | 40% |
| Private equity | 1 | 10% |
| Bank & private debt | 2 | 20% |
| Other / undisclosed | 3 | 30% |
Recent activity
12 Jun 2026
Recognition
9 Jun 2026
Event
World Orphan Drug Congress
27 May 2026
Event
Royal-Udall Foundation for the FDA meeting on Affecting the Aging Trajectory