Plexium
SAN DIEGO, CA · CIK 0002082715 · Biotech · Private
Targeted protein degradation molecules using monovalent direct degraders and molecular glues
plexium.com →- Grants
- —
- No SBIR or STTR on record
- Sector median: 1
- Raised
- $60M
- 1 Form D · Aug 2025
- 13 months since last filing
- Contracts
- —
- No federal contracts on record
- Patents
- 40
- 17 granted · 23 pending
- Sector median: 2
Capital Timeline
Federal ↑Equity ↓20252026
| Date | Event | Source | Amount |
|---|---|---|---|
| Private capital raised | Form D · SEC | $60,115,703 |
Form D · SEC
Peer position
| # | Company | Contracts | Disclosed equity |
|---|---|---|---|
| 2452 | PALM THERAPEUTICS, INC. | — | — |
| 2453 | ILLUMINATE THERAPEUTICS, INC. | — | — |
| 2454 | TERAPORE TECHNOLOGIES, INC. | — | $3.5M |
| 2455 | Plexium | — | $60M |
| 2456 | Prolific Machines | — | $55M |
| 2457 | LIFESPLICE PHARMA, LLC | — | — |
| 2458 | ImmusanT, Inc. | — | $33M |
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
- Leon ChenDirector
- Cariad ChesterDirector
- Michael GreyDirector
- Rob HopfnerDirector
- Gorjan HrustanovicDirector
- Michael MartinDirector · Executive Officer
- Serge MesserlianDirector
- Stephen MullennixExecutive Officer
- Patrick RiversDirector
Patents
- Oligonucleotide Encoded Chemical Librariesgranted
- Oligonucleotide Encoded Chemical Libraries, Related Systems, Devices, And Methods For Detecting, Analyzing, Quantifying, And Testing Biologics/geneticsgranted
- Uniform Fluid Flow With Constant Resistance And Velocitygranted
- Heterocycloalkyl And Heteroaryl Compounds And Pharmaceutical Compositions That Modulate IKZF2application
- Cycloalkyl Compounds And Pharmaceutical Compositions That Modulate IKZF2application
- Transfer Dispensers For Assay Devices With Bead Size Exclusionapplication
- Aryl Compounds And Pharmaceutical Compositions That Modulate IKZF2application
- Oligonucleotide Encoded Chemical Librariesgranted
- Assay Devices For Combinatorial Librariesgranted
- Caps For Assay Devicesgranted
- Aryl Compounds And Pharmaceutical Compositions That Modulate IKZF2granted
- Quinazolinone Compounds And Related Compoundsgranted
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.