Plexium

Drug Discovery · San Diego, CA · Founded 2017 · Privately Held (backing)

Developer of protein-degrading therapeutics designed to treat cancer and other serious diseases. Plexium is based in San Diego, CA and was founded in 2017. It was valued at $200 million at its later-stage round in Aug 2025, the last priced event on record. It has raised $225 million across 2 recorded rounds; the latest was a $60.1 million later-stage round in Jul 2025.

PMV mark · valuation
$200.0M
Oct 2026
Priced at
its later-stage round
Aug 2025
Total raised
$225.1M
Last round
Later Stage VC
Jul 2025
How much has Plexium raised?
$225.1Macross 2 recorded rounds · Feb 2022 – Jul 2025

Most recently, Plexium raised $60.1M in its Later Stage VC (Jul 2025).

Free account
More of Plexium with a free account
  • ·The complete investor list: 18 names
  • ·Watch Plexium: the Monday email on marks, rounds and moves
Create free account
No card required

Membership and data by Private Market View

Plexium round by round

2 rounds
Jul 2025Later Stage VC$60.1MSEC filing▮
20 investors participated
Feb 2022Later Stage VC (Series B)$102.0M▮
+ 1 more investors · free account

How much has Plexium raised?

Plexium has raised $225 million in total; 2 of its rounds are on record. The largest on record was a $60.1 million later-stage round in Jul 2025.

Plexium has filed 1 Form D with the SEC, most recently in Aug 2025 ($60.1 million sold to 20 investors).

Plexium investors

18 investors are on record for Plexium, including RA Capital Management, New Enterprise Associates, SoftBank Investment Advisers and Lux Capital. By type, the record holds 6 venture capital firms, 1 hedge fund and 1 asset manager. The later-stage round in Jul 2025 drew 20 investors.

For fundraisers
Raising for a company like Plexium?

18 investors have backed Plexium — start your target list with the firms already writing checks in drug discovery.

See all 18 investors →

Frequently asked about Plexium

How much has Plexium raised?
Plexium has raised $225.1M in total across 2 recorded funding rounds.
When was Plexium's last funding round?
Plexium's most recent recorded round was Later Stage VC in Jul 2025, raising $60.1M.