Addition Therapeutics
SOUTH SAN FRANCISCO, CA · Founded 2021 · CIK 0002102340 · Biotech · Private
Small molecule therapeutics targeting severe genetic and rare diseases
additiontx.com →- Grants
- —
- No SBIR or STTR on record
- Sector median: 1
- Raised
- $28M
- 1 Form D · Dec 2025
- 9 months since last filing
- Contracts
- —
- No federal contracts on record
- Patents
- 11
- 0 granted · 11 pending
- Sector median: 2
Capital Timeline
Federal ↑Equity ↓20252026
| Date | Event | Source | Amount |
|---|---|---|---|
| Private capital raised | Form D · SEC | $28,000,000 |
Form D · SEC
Peer position
| # | Company | Contracts | Disclosed equity |
|---|---|---|---|
| 2537 | BIOIO, LLC | — | — |
| 2538 | EIKONIZO THERAPEUTICS, INC. | — | $2.4M |
| 2539 | Topos Bio, Inc. | — | $9.0M |
| 2540 | Addition Therapeutics | — | $28M |
| 2541 | NBO Pharma Inc. | — | $7.6M |
| 2542 | Apriori Bio | — | — |
| 2543 | Trekka Therapeutics, LLC | — | — |
Ranked on federal contract value rather than capital raised. The equity column is the comparison worth making — companies at the same procurement position often sit at very different points in their funding history.
Founders & Team
- Peter BisgaardDirector
- Kathleen CollinsDirector
- Lawrence KongExecutive Officer
- Jennifer LeeDirector
- Ronald ParkDirector · Executive Officer
- Matthew PattersonDirector
- Jayson PunwaniDirector
- Laetitia SchwabDirector
Patents
- Genome Insertions In Cellsapplication
- Rna Tails For Target Primed Reverse Transcriptionapplication
- Nucleic Acid Insertion In Young Mammalsapplication
- Multicomponent Systems For Site-specific Genome Modificationsapplication
- Compositions For Target Primed Reverse Transcriptionapplication
- Rna Tails For Target Primed Reverse Transcriptionapplication
- Nucleic Acid Insertion In Young Mammalsapplication
- Multicomponent Systems For Site-specific Genome Modificationsapplication
- Genome Insertions In Cellsapplication
- Compositions For Target Primed Reverse Transcriptionapplication
- Genome Insertions In Cellsapplication
Regulatory activity · Biotech
- New Animal Drugs; Approval of New Animal Drug Applications; Withdrawal of Approval of New Animal Drug Application; Change of SponsorFood and Drug Administration
- Medical Devices; General and Plastic Surgery Devices; Classification of the Skin Patch for Treatment of HyperhidrosisFood and Drug Administration
- Medical Devices; Anesthesiology Devices; Classification of the Monitor for Opioid Induced Impairment of OxygenationFood and Drug Administration
- Medical Devices; Orthopedic Devices; Classification of the Medial Knee Implanted Shock AbsorberFood and Drug Administration
- Medical Devices; Neurological Devices; Classification of the External Lower Extremity Nerve Stimulator for Restless Legs SyndromeFood and Drug Administration
- Medical Devices; General Hospital and Personal Use Devices; Classification of the Infant Supine Sleep SystemFood and Drug Administration
Rules are matched to sector, not to company. Recent activity in a sector is context rather than a signal about this business — until rules are matched to what a company actually builds, the section is shown as context and nothing more.