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
No prints on record
No secondary trades in Plexium shares have been recorded yet. When market activity lands it appears here as monthly aggregates and, for platform-recorded trades, dated prints.
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Secondary marks are indicative month-end price levels observed across secondary-market trading venues — a level, not a trade — and are the market input to the PrivateMarketView mark. Private share prices aren’t published anywhere. Aggregate figures combine multiple reporting channels — direct participant reports, platform transactions, third-party market intelligence — at monthly granularity. Individually dated prints are a Pro feature and are shown only for transactions recorded on our own platform. Third-party-reported trades are never republished individually, at any tier. Verified prints (✓) have been confirmed against a second source. Prints marked SPV or Forward reflect the structure’s pricing, which can differ from direct share transfers of Plexium stock.
