Who invested in Gemstone Biotherapeutics?
Gemstone Biotherapeutics's investors include National Science Foundation and Gamma3.

United States · Venture startup
Funding summaryUpdated 26 Oct 2026
$2.7Mraised across 2 rounds since 2015, from 2 sources
Each circle is a round, placed by date and sized by amount. The line above is the running total.
From the SEC filings it signed: 2 on the team.
On the board, as filediGeoff MackayXin Huang
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Gemstone Biotherapeutics's investors include National Science Foundation and Gamma3.
Gemstone Biotherapeutics has raised $2.7M across 2 rounds since 2015.
Gemstone Biotherapeutics's most recent round was a Venture of $250K in Aug 2019.
Gemstone Biotherapeutics's largest round on record is $2.5M (Seed), in Jun 2015.
Gemstone Biotherapeutics's first round on record, in Jun 2015, was backed by Gamma3.
Gemstone Biotherapeutics's latest named round is a Venture, in Aug 2019.
Gemstone Biotherapeutics is based in the United States.
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