Walter Kowtoniuk

Walter Kowtoniuk

Active Investor

Venture Partner at Third Rock Ventures

Boston, Massachusetts

Walter Kowtoniuk, Venture Partner at Third Rock Ventures is an active investor based in Boston, Massachusetts. This profile covers what Walter Kowtoniuk backs, at which stage, and how founders can reach out in 2026.

Investor type
VCPE
Stages
SeedSeries ASeries BLate Stage Venture
Invests in
Artificial IntelligenceHealthcare & BiotechDigital Health & HealthTechBiotech & PharmaMedTech & Medical DevicesSaaS & EnterpriseIoT & Connected DevicesGaming & Entertainment
Location
Boston, Massachusetts
Typical check
$2M
Past investments
57

Notable investments

Goldfinch BiopharmaBlueprint MedicinesMagenta TherapeuticsLarimar TherapeuticsConstellation PharmaceuticalsJounce TherapeuticsMotus TherapeuticsPanOpticaWarp Drive BioEditas MedicineEmber TherapeuticsMOMA Therapeutics

How to reach Walter Kowtoniuk

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Frequently Asked Questions

What does Walter Kowtoniuk invest in?

Walter Kowtoniuk invests in Artificial Intelligence, Healthcare & Biotech, Digital Health & HealthTech and Biotech & Pharma, typically at Seed, Series A, Series B and Late Stage Venture. Match your sector and stage, then reach out with a personalized pitch.

How do I contact Walter Kowtoniuk?

Unlock Walter Kowtoniuk's verified email on Round Funded and send a personalized pitch. We surface only deliverable contacts so your outreach lands.

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