Stealth BioTherapeutics: Funding, Investors & Team (Nov 2026)
Stealth is a clinical-stage biotechnology company focused on the discovery, development and commercialization of novel therapies for diseases involving mitochondrial dysfunction. Mitochondria, found in nearly every cell in the body, are the body's main source of energy production and are critical for normal organ function. The company was founded in 2007 and is based in Newton, Massachusetts, United States.
Stealth BioTherapeutics has raised $63.5M across 3 funding rounds on record, the most recent a Post-IPO Equity of $8.5M announced in Apr 2022.
That round is in line with the $8.8M median round size for Biotechnology companies tracked on FundedIQ over the last two years.
Stealth BioTherapeutics Company Profile and Key Stats
Latest funding round on record: Apr 2022.
Stealth BioTherapeutics Funding Rounds
Stealth BioTherapeutics raised $30.0M in an undisclosed round announced in May 2021.
5 months later, a Post-IPO Debt of $25.0M was announced in Oct 2021.
6 months later, a Post-IPO Equity of $8.5M was announced in Apr 2022.
Stealth BioTherapeutics Founders and Leadership Team
Contact details for the Stealth BioTherapeutics team: 1 of 1 has an email address on file.
Start 14-day free trial →Stealth BioTherapeutics Funding Compared to Other Biotechnology Startups
Stealth BioTherapeutics' latest round of $8.5M is in line with the median round in Biotechnology. Medians cover the last 24 months of disclosed rounds.
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Stealth BioTherapeutics Funding FAQs
What does Stealth BioTherapeutics do?
Stealth is a clinical-stage biotechnology company focused on the discovery, development and commercialization of novel therapies for diseases involving mitochondrial dysfunction. Mitochondria, found in nearly every cell in the body, are the body's main source of energy production and are critical for normal organ function. The company was founded in 2007 and is based in Newton, Massachusetts, United States.
How much funding has Stealth BioTherapeutics raised?
Stealth BioTherapeutics has raised $63.5M across 3 rounds on record. The most recent is a Post-IPO Equity of $8.5M announced in Apr 2022.
When did Stealth BioTherapeutics last raise funding?
Stealth BioTherapeutics' most recent funding round on record is a Post-IPO Equity of $8.5M, announced in Apr 2022.
Who is the CEO of Stealth BioTherapeutics?
Reenie McCarthy is listed as CEO at Stealth BioTherapeutics.
Where is Stealth BioTherapeutics headquartered?
Stealth BioTherapeutics is based in Newton, Massachusetts, United States.
How many employees does Stealth BioTherapeutics have?
Stealth BioTherapeutics is in the 101-250 employee band.
How does Stealth BioTherapeutics' funding compare to other Biotechnology startups?
Stealth BioTherapeutics' latest round of $8.5M is in line with the $8.8M median round size for Biotechnology companies on FundedIQ across 4,188 tracked companies over the last two years.
About FundedIQ's Stealth BioTherapeutics Funding Data
FundedIQ tracks announced funding rounds and refreshes this profile every week. Round dates, stages and amounts are normalised to a single format, converted to US dollars, and de-duplicated: two records of the same round announced days apart are merged, and two genuinely different rounds are kept apart on the amounts they disclose. Amounts shown are the disclosed figures only — a round announced without a number is listed and excluded from the total rather than estimated.
Employee counts are reported bands, not exact headcounts. Founder and executive names carry the job title on record. Anything we do not hold for Stealth BioTherapeutics is left off this page rather than filled in.
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