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Jack Naglieri

InvestorFounder

Founder & CEO at Panther Labs

San Francisco, California, United States

FoundedPanther Labs

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About

Jack Naglieri is a Member of Technical Staff at Databricks, where he is building Lakewatch. He founded Panther, a security platform combining a security data lake, detection-as-code, and AI agents, which raised $140M from Coatue, Lightspeed, and S28 Capital, was adopted by companies including Coinbase, Docker, and Plaid, and was acquired by Databricks in June 2026. Earlier, he worked as an incident responder at Yahoo and led development of the open-source framework StreamAlert at Airbnb, and he hosts Detection at Scale, a podcast and newsletter on AI-powered security operations.

Founder & CEO at Panther Labs

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Panther Labs's investors · 13

645 VenturesNew York · $1M – $15M checksCoatue ManagementNew York · $1M – $20M checks · since 2021ICONIQSan FranciscoICONIQ CapitalSan Francisco · $5M – $100M checks · since 2026ICONIQ GrowthSan Francisco · since 2021Innovation EndeavorsPalo Alto · $1M – $15M checks · since 2021Lightspeed Venture PartnersMenlo Park · $1M – $5M checks · since 2021Locus VenturesPalo AltoMudita VentureDetroit · $250K – $2M checksS28 CapitalSan Francisco · $1M – $5M checks · since 2021Sampac Tech FundPalo AltoSnowflake VenturesMenlo Park · $1M – $20M checks · since 2021Vibe CapitalSan Francisco · $250K – $500K checks

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Frequently asked questions

Who is Jack Naglieri?
Jack Naglieri is a Member of Technical Staff at Databricks, where he is building Lakewatch. He founded Panther, a security platform combining a security data lake, detection-as-code, and AI agents, which raised $140M from Coatue, Lightspeed, and S28 Capital, was adopted by companies including Coinbase, Docker, and Plaid, and was acquired by Databricks in June 2026. Earlier, he worked as an incident responder at Yahoo and led development of the open-source framework StreamAlert at Airbnb, and he hosts Detection at Scale, a podcast and newsletter on AI-powered security operations.
Where does Jack Naglieri work?
Jack Naglieri is Founder & CEO of Panther Labs.
What companies did Jack Naglieri found?
Jack Naglieri founded Panther Labs.
What companies has Jack Naglieri invested in?
Investments tracked here include Instant.

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About this profile. Compiled from public sources — Panther Labs's own website and public professional profiles — and summarised by Fundraising Fox; every fact is kept with where it came from. Spotted an error, or would rather not be listed? Email privacy@fundraisingfox.com · How we build profiles · Your rights