Star Therapeutics

Biotechnology · San Francisco, CA · Founded 2018 · Privately Held (backing)

Developer of antibody-based therapeutics designed to treat serious and underserved diseases through novel biological pathways. Star Therapeutics is based in San Francisco, CA and was founded in 2018. It has raised $315 million across 3 recorded rounds; the latest was a $125 million Series D in Sep 2025.

Last price · $/share
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Implied valuation
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Total raised
$315.0M
Last round
Later Stage VC (Series D)
Sep 2025
Valuation — not yet established

No valuation for Star Therapeutics is on record yet — no priced round, mark, or trade has surfaced in our sources. Total raised ($315.0M) and the funding record below are the closest available signals.

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Star Therapeutics funding history

3 rounds
DateRoundRaisedPost-money
Sep 2025Later Stage VC (Series D)$125.0M▮
Sep 2023Later Stage VC (Series C)$90.0M▮
Feb 2022Early Stage VC (Series A)$100.0M▮
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How much has Star Therapeutics raised?

Star Therapeutics has raised $315 million across 3 recorded rounds since 2022. The largest was a $90 million Series C in Sep 2023; the most recent was a $125 million Series D in Sep 2025.

Star Therapeutics has filed 1 Form D with the SEC, most recently in Oct 2025 ($125 million sold to 21 investors).

How Star Therapeutics's valuation is determined

Private company valuations aren’t quoted on an exchange — they’re established in moments: a priced funding round sets a post-money valuation, secondary trades print at a price per share, and SEC-registered funds holding the stock report fair-value marks in their N-PORT filings.

For Star Therapeutics, too few pricing signals exist to publish a composite mark; the figures above reflect the most recent observed valuation event. Full methodology →

Frequently asked about Star Therapeutics

How much has Star Therapeutics raised?
Star Therapeutics has raised $315.0M in total funding across 3 recorded rounds.
When did Star Therapeutics last raise?
Star Therapeutics last raised in Sep 2025 (Later Stage VC (Series D)), raising $125.0M.