Plexium
plexium.com
Actively hiring
Artificial Intelligence
Medical AI
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Overview
Salaries
Products
People
Growth
Offices
Financials
Funding and backers
Total raised
$60.1M
1 round on record
Latest round
$60.1M
Venture round · Jul 2025 · 14 mo ago
Team
68
US Form 5500 (plan participants) · Dec 2024
Backers
4
aMoon, CRV
The money's age
Due for its next round
14 months since the last round · not hiring
Momentum
0/100
no fresh signals
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Jul 14, 2025
Raised a round Venture round $60.1M · SEC Form D
Funding rounds
| Round | Date | Amount | Investors | Source |
|---|---|---|---|---|
| Venture round | Jul 2025 | $60.1M | — | SEC Form D |
Registers and programsofficial lists and records that name the company
| Legal entity | Plexium, Inc. | SEC Form D |
Founders and leadersfrom filings, registers and the company's site
Michael MartinExecutive Officer, DirectorSEC Form D
Stephen MullennixExecutive OfficerSEC Form D
Backed byfrom the funds' portfolios and accelerator catalogs
aMoon 
CRV 
DCVC 
M Ventures Overview
Plexium is a next-generation targeted protein degradation (TPD) company that discovers Monovalent Direct Degraders and Molecular Glues.
People
Michael Martin
Executive Officer, Director
Stephen Mullennix
Executive Officer
Serge Messerlian
Director
Cariad Chester
Director
Patrick Rivers
Director
Leon Chen
Director
Rob Hopfner
Director
Michael Grey
Director
Gorjan Hrustanovic
Director
Names and roles come from public filings, company registers and the company's own site. Is this you? Correct or remove · How we handle this data
Offices
Where the company hires and what each office is for
Cities
1
Hiring now
0
Countries
1
San Diego
United States
HQ
Financials
Total raised
$60.1M
Latest round
Venture - Series Unknown
Funding rounds
1
Funding rounds
| Round | Announced | Amount | |
|---|---|---|---|
| Venture - Series Unknown | 2025 | $60.1M | Details |