Who are Plexium's investors?

Plexium's investors include CRV (Charles River Ventures), DCVC (Data Collective), M Ventures, Neotribe Ventures, SoftBank Vision Fund, TCG Crossover, The Column Group, Pivotal Life Sciences.

How much funding has Plexium raised?

Plexium has disclosed $60.1M raised across 1 round.

Where is Plexium headquartered?

Plexium is headquartered in San Diego, US.

Plexium

San Diego, US · Founded 2018 · 33 employees on LinkedIn · 8 known investors

Plexium is a targeted protein degradation company developing small molecule therapeutics for treating diseases with high unmet medical needs using their proprietary DELTA Discovery platform.

AI & Machine Learning Biotech Deep Tech

Founders & leadership

Michael Martin, Ph.D.Chief Executive Officer, President

Jorge F. DiMartino

Michael MartinPresident, Chief Executive Officer

Stephen MullennixExecutive

Board

Serge Messerlian inChief Executive OfficerOperating Partner, DCVC Bio at DCVC Bio

Cariad ChesterinBoard director

Patrick Rivers inBoard directorPortfolio Manager at aMoon

Leon Chen inBoard directorPartner at The Column Group

Rob Hopfner inBoardManaging Director at Pivotal Life Sciences

Gorjan HrustanovicinBoard director

Mike GreyinExecutive Chairman

Michael GreyBoard director

Investors · 8

CRV (Charles River Ventures)Bay Area · $250K – $5M

DCVC (Data Collective)Palo Alto · $5M – $25M

M VenturesLos Angeles · $10.8M

Neotribe VenturesMenlo Park · $250K – $2M

SoftBank Vision FundLondon

TCG CrossoverPalo Alto

The Column GroupSan Francisco · $30M

Pivotal Life SciencesreportedSan Franciscovia Rob Hopfner · board

Reported raises · per SEC filings

Form D private placements

$60.1M disclosed across 1 round · 2025

▶$60.1MraisedAug 2025 · 20 investors · Biotechnology

Rule 506(b)

Officers, directors & promoters on the filing

Serge MesserlianDirector
Cariad ChesterDirector
Patrick RiversDirector
Leon ChenDirector
Rob HopfnerDirector
Michael MartinExecutive Officer, Director
Michael GreyDirector
Stephen MullennixExecutive Officer
Gorjan HrustanovicDirector

Offering amount: $60.1M
Amount sold: $60.1M
First sale: Jul 2025
Incorporated: Corporation, Delaware
Federal exemptions: 06b

Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Founder mafia

2 people who came through Plexium went on to found or lead other companies.

Ian PeikonBoard MemberFounded Cajal Therapeutics +1 Serge MesserlianDirectorFounded Creyon

Competitors · 1

by search overlap

Bioworld16 shared keywordsBioWorld is a suite of daily news and data services covering therapeutics, medical technology, biopharma business transactions, and drug R&D, serving biopharmaceutical and medtech industry professionals. Owned by Clarivate, it publishes products including BioWorld, BioWorld Science, and BioWorld Asia with reporting from writers stationed globally.

Companies competing with Plexium for the same Google search keywords, organic and paid, via search-intersection analysis.

Frequently asked questions

What does Plexium do?: Plexium is a targeted protein degradation company developing small molecule therapeutics for treating diseases with high unmet medical needs using their proprietary DELTA Discovery platform.
Who are Plexium's investors?: Plexium's investors include CRV (Charles River Ventures), DCVC (Data Collective), M Ventures, Neotribe Ventures, SoftBank Vision Fund, TCG Crossover, The Column Group, Pivotal Life Sciences.
How much funding has Plexium raised?: Plexium has disclosed $60.1M raised across 1 round.
Where is Plexium headquartered?: Plexium is headquartered in San Diego, US.