Actithera

Cambridge, MA · Founded 2021 · Privately Held (backing)

Operator of a molecular radio therapeutic company intended for biotechnology research services. Actithera is based in Cambridge, MA and was founded in 2021. Its last reported valuation was $110 million in Jul 2025. It has raised $80.8 million.

Last reported valuation

$110.0M

Oct 2026

Priced at

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Total raised

$80.8M

Last round

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How much has Actithera raised?

$80.8Macross 0 recorded rounds

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Actithera investors

10 investors are on record for Actithera, including Sofinnova Partners, Innovestor, M Ventures and Arkin Capital. By type, the record holds 4 venture capital firms, 1 family office and 1 hedge fund.

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Frequently asked about Actithera

How much has Actithera raised?: Actithera has raised $80.8M in total across 0 recorded funding rounds.