# Kronos Bio funding: rounds and investors > Kronos Bio has raised $123M across 2 rounds since 2018. Investors include Omega Funds, Norbert Bischofberger and Vida Ventures. Every round with its source. Source: https://millionrounds.com/company/kronos-bio (Millionrounds; every figure on the page links to its filing or article) United States · [Series A startup](https://millionrounds.com/companies) # Who invested in *Kronos Bio* 2 rounds we have observed, with the 12 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it. Biotech Healthcare Funding summary Updated 26 Oct 2026 **$123M** raised across 2 rounds since 2018, from 2 sources **$18M** Seed **$105M** Series A - **Latest round:** Series A, $105M Jul 2019 - **Led by:** Omega Funds and Vida Ventures - **Step-up i:** 5.8× - **Investors:** 12 (2 led) See who backed them ## The funding story Each circle is a round, placed by date and sized by amount. The line above is the running total. 2019 **$18M** Seed **$105M** Series A - **First round:** Seed, $18M - **Biggest round:** $105M - **Between rounds:** 14 months ## The rounds - **Jul 2019** Series A **$105M** *7 new* *2 returning* [Omega Funds](https://millionrounds.com/fund/omega-funds) Lead [Vida Ventures](https://millionrounds.com/fund/vida-ventures) Lead [Google Ventures](https://millionrounds.com/fund/gv) [Polaris Partners](https://millionrounds.com/fund/polaris-partners) [Perceptive Advisors](https://millionrounds.com/fund/perceptive-advisors) [Invus](https://millionrounds.com/fund/invus) [Nextech Ventures](https://millionrounds.com/fund/nextech-ventures) [Norbert Bischofberger](https://millionrounds.com/fund/norbert-bischofberger) Kronos President Reported by FinSMEs SEC filing: $105M sold, first sale Jul 2019 - **May 2018** Seed **$18M** *5 new* [Omega Funds](https://millionrounds.com/fund/omega-funds) [VIDA](https://millionrounds.com/fund/vida) [Norbert Bischofberger](https://millionrounds.com/fund/norbert-bischofberger) BellCo John Martin Reported by Vcnewsdaily SEC filing: $18M sold, first sale May 2018 ## Founders and team From the SEC filings it signed: 4 on the team. - **David M. Tanen** Executive Officer, Director, Promoter i - **Norbert Bischofberger** Executive Officer, Director i - **Philip C. Gutry** Executive Officer i - **Sean A. Algeo** Executive Officer i On the board, as filed i *Arie S. Belldegrun* *Jacob C. Loven* *John C. Martin* *Joshua A. Kazam* *Otello C. Stampacchia* *Rebecka C. Belldegrun* ## Who was in which round The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led. **Seed** 2018 **Series A** 2019 [Omega Funds](https://millionrounds.com/fund/omega-funds) L [Norbert Bischofberger](https://millionrounds.com/fund/norbert-bischofberger) [Vida Ventures](https://millionrounds.com/fund/vida-ventures) L [Google Ventures](https://millionrounds.com/fund/gv) [Polaris Partners](https://millionrounds.com/fund/polaris-partners) [Perceptive Advisors](https://millionrounds.com/fund/perceptive-advisors) [Invus](https://millionrounds.com/fund/invus) [VIDA](https://millionrounds.com/fund/vida) [Nextech Ventures](https://millionrounds.com/fund/nextech-ventures) BellCo ## Everyone who backed them [Omega Funds](https://millionrounds.com/fund/omega-funds) VC firm **2** rounds, led 1 [Norbert Bischofberger](https://millionrounds.com/fund/norbert-bischofberger) Angel **2** rounds [Vida Ventures](https://millionrounds.com/fund/vida-ventures) VC firm **1** round, led 1 [Google Ventures](https://millionrounds.com/fund/gv) Corporate VC **1** round [Polaris Partners](https://millionrounds.com/fund/polaris-partners) VC firm **1** round [Perceptive Advisors](https://millionrounds.com/fund/perceptive-advisors) Asset manager **1** round [Invus](https://millionrounds.com/fund/invus) Private equity **1** round [VIDA](https://millionrounds.com/fund/vida) Company **1** round [Nextech Ventures](https://millionrounds.com/fund/nextech-ventures) VC firm **1** round BellCo no record of our own yet **1** round John Martin no record of our own yet **1** round Kronos President no record of our own yet **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=kronos-bio). ## Also claim to have backed them These 4 firms list Kronos Bio as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above. [EcoR1 Capital](https://millionrounds.com/fund/ecor1-capital) Private equity Per its own site [Nextech Invest](https://millionrounds.com/fund/nextech-invest) Private equity Per its own site [Two River](https://millionrounds.com/fund/two-river) VC firm Per its own site [Vida Ventures](https://millionrounds.com/fund/vida-ventures-llc) VC firm Per its own site ## Quick answers about Kronos Bio ### Who invested in Kronos Bio? Kronos Bio's investors include Omega Funds, Norbert Bischofberger, Vida Ventures, Google Ventures and Polaris Partners, and 7 more on record. Omega Funds led its latest round. ### How much has Kronos Bio raised? Kronos Bio has raised $123M across 2 rounds since 2018. ### When did Kronos Bio last raise? Kronos Bio's most recent round was a Series A of $105M in Jul 2019, led by Omega Funds. ### What was Kronos Bio's biggest round? Its most recent round, $105M in Jul 2019, is also its largest on record. ### Who backed Kronos Bio first? Kronos Bio's first round on record, in May 2018, was backed by Omega Funds, VIDA and Norbert Bischofberger and 2 others. ### What stage is Kronos Bio at? Kronos Bio's latest named round is a Series A, in Jul 2019. ### Where is Kronos Bio based? Kronos Bio is based in the United States. ### Who led Kronos Bio's rounds? Omega Funds led the Series A in 2019. ## Companies like Kronos Bio In the same sector, and raised in the last eighteen months. [**Star Therapeutics** $325M · Oct 2026](https://millionrounds.com/company/star-therapeutics)[**Promaxo** $106M · Oct 2026](https://millionrounds.com/company/promaxo)[**Prolific Machines** $105M · Oct 2026](https://millionrounds.com/company/prolific-machines)[**AI** $18M · Oct 2026](https://millionrounds.com/company/ai)[**Baba** $40M · Oct 2026](https://millionrounds.com/company/baba)[**IMIO** $19M · Oct 2026](https://millionrounds.com/company/imio) ## Find investors like these Search every investor by what they have actually funded, then narrow to your stage and market. Free. Open the investor searchOr these rounds in the app