Boston, MA · Founded 2020 · Privately Held (backing)
Operator of a biopharmaceutical company intended to develop novel neuropsychiatric medicines in areas of patient need. Seaport Therapeutics is based in Boston, MA and was founded in 2020. It is valued at about $740 million as of Oct 2026, set by institutional fund marks. It has raised $330 million across 1 recorded round; the latest was a $226 million later-stage round in Oct 2024.
PMV mark · valuation
$740.0M
Oct 2026
Priced at
its later-stage round
Oct 2024
Total raised
$329.9M
Last round
Later Stage VC
Oct 2024
No prints on record
No secondary trades in Seaport Therapeutics 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 Seaport Therapeutics stock.
