United States · Seed startup
Funding summaryUpdated 26 Oct 2026
$23Mraised across 2 rounds since 2025, from 2 sources
Each circle is a round, placed by date and sized by amount. The line above is the running total.
No investor was named in the report.
Filed with the SEC (Form D); no report of this raise yetSEC filing: $10M sold, first sale Jul 2026
Flying Fish PartnersLead
U.S. Venture Partners
Washington Research Foundation
Columbus Venture Partners
Pack Ventures
Argonautic VenturesReported by Columbus Venture PartnersSEC filing: $14M sold, first sale May 2024
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
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Accipiter Biosciences's investors include Flying Fish Partners, Takeda Digital Ventures, U.S. Venture Partners, Alexandria Venture Investments and Washington Research Foundation, and 4 more on record.
Accipiter Biosciences has raised $23M across 2 rounds since 2025.
Accipiter Biosciences's most recent round, $10M, was in Jul 2026.
Accipiter Biosciences's largest round on record is $13M (Seed), in Nov 2025, led by Flying Fish Partners.
Accipiter Biosciences's first round on record, in Nov 2025, was backed by Flying Fish Partners, Takeda Digital Ventures and U.S. Venture Partners and 6 others.
Accipiter Biosciences's latest named round is a Seed, in Nov 2025.
Accipiter Biosciences is based in the United States.
Flying Fish Partners led the Seed in 2025.
In the same sector, and raised in the last eighteen months.
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