# Aptinyx funding: rounds and investors > Aptinyx has raised $76M across 2 rounds since 2017. Investors include Adams Street Partners, Longitude Capital and Frazier Healthcare Partners. Source: https://millionrounds.com/company/aptinyx (Millionrounds; every figure on the page links to its filing or article) United States · [Funded startup](https://millionrounds.com/companies) # Who invested in *Aptinyx* 2 rounds we have observed, with the 18 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 Pharma Funding summary Updated 26 Oct 2026 **$76M** raised across 2 rounds since 2017, from 2 sources **$70M** Series B **$5.6M** Grant - **Latest round:** Grant, $5.6M Nov 2022 - **Biggest round:** $70M Series B · Dec 2017 - **Investors:** 18 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. 2018 2019 2020 2021 2022 **$70M** Series B **$5.6M** Grant - **First round:** Series B, $70M - **Biggest round:** $70M - **Between rounds:** 4.8 years ## The rounds - **Nov 2022** Grant **$5.6M** *2 new* *2 returning* [Adams Street Partners](https://millionrounds.com/fund/adams-street-partners) [Longitude Capital](https://millionrounds.com/fund/longitude-capital) [Adage Capital Management](https://millionrounds.com/fund/adage-capital-management) [Bain Capital Life Sciences](https://millionrounds.com/fund/bain-capital-life-sciences) Source recorded - **Dec 2017** Series B **$70M** *16 new* [Adams Street Partners](https://millionrounds.com/fund/adams-street-partners) [Frazier Healthcare Partners](https://millionrounds.com/fund/frazier-healthcare-partners) [Longitude Capital](https://millionrounds.com/fund/longitude-capital) [Osage University Partners](https://millionrounds.com/fund/osage-university-partners) [HBM](https://millionrounds.com/fund/hbm) [Beecken Petty O'Keefe & Company](https://millionrounds.com/fund/beecken-petty-o-keefe-and-company) [Northwestern University](https://millionrounds.com/fund/northwestern-university) [Nan Fung Group](https://millionrounds.com/fund/nan-fung-group) [PathoCapital](https://millionrounds.com/fund/pathocapital) Agent Bain Capital Life Sciences/ Adage Goudy Park LVP Life Science New Leaf Partner Rock Springs Reported by FinSMEs SEC filing: $70M sold, first sale Dec 2017 ## Founders and team From the SEC filings it signed: 5 on the team. - **Norbert G. Riedel** President & Chief Executive Officer i - **Andrew D. Kidd** Chief Commercial Officer i - **Ashish M. Khanna** Chief Business Officer i - **Joseph R. Moskal** Chief Scientific Officer i - **Torsten M. Madsen** Chief Medical Officer i On the board, as filed i *Adam M. Koppel* *James P. Topper* *Liam P. Ratcliffe* *Patrick H. Enright* *Terry P. Gould* *Wilbur H. Gantz* ## 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. **Series B** 2017 **Grant** 2022 [Adams Street Partners](https://millionrounds.com/fund/adams-street-partners) [Longitude Capital](https://millionrounds.com/fund/longitude-capital) [Frazier Healthcare Partners](https://millionrounds.com/fund/frazier-healthcare-partners) [Osage University Partners](https://millionrounds.com/fund/osage-university-partners) [Adage Capital Management](https://millionrounds.com/fund/adage-capital-management) [Bain Capital Life Sciences](https://millionrounds.com/fund/bain-capital-life-sciences) [HBM](https://millionrounds.com/fund/hbm) [Beecken Petty O'Keefe & Company](https://millionrounds.com/fund/beecken-petty-o-keefe-and-company) [Northwestern University](https://millionrounds.com/fund/northwestern-university) [Nan Fung Group](https://millionrounds.com/fund/nan-fung-group) ## Everyone who backed them [Adams Street Partners](https://millionrounds.com/fund/adams-street-partners) VC firm **2** rounds [Longitude Capital](https://millionrounds.com/fund/longitude-capital) VC firm **2** rounds [Frazier Healthcare Partners](https://millionrounds.com/fund/frazier-healthcare-partners) Private equity **1** round [Osage University Partners](https://millionrounds.com/fund/osage-university-partners) VC firm **1** round [Adage Capital Management](https://millionrounds.com/fund/adage-capital-management) Asset manager **1** round [Bain Capital Life Sciences](https://millionrounds.com/fund/bain-capital-life-sciences) Private equity **1** round [HBM](https://millionrounds.com/fund/hbm) Venture studio **1** round [Beecken Petty O'Keefe & Company](https://millionrounds.com/fund/beecken-petty-o-keefe-and-company) Private equity **1** round [Northwestern University](https://millionrounds.com/fund/northwestern-university) Investment firm **1** round [Nan Fung Group](https://millionrounds.com/fund/nan-fung-group) Investment firm **1** round [PathoCapital](https://millionrounds.com/fund/pathocapital) Growth equity **1** round Agent no record of our own yet **1** round Bain Capital Life Sciences/ Adage no record of our own yet **1** round Goudy Park no record of our own yet **1** round LVP Life Science no record of our own yet **1** round New Leaf no record of our own yet **1** round Partner no record of our own yet **1** round Rock Springs 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=aptinyx). ## Quick answers about Aptinyx ### Who invested in Aptinyx? Aptinyx's investors include Adams Street Partners, Longitude Capital, Frazier Healthcare Partners, Osage University Partners and Adage Capital Management, and 13 more on record. ### How much has Aptinyx raised? Aptinyx has raised $76M across 2 rounds since 2017. ### When did Aptinyx last raise? Aptinyx's most recent round was a Grant of $5.6M in Nov 2022. ### What was Aptinyx's biggest round? Aptinyx's largest round on record is $70M (Series B), in Dec 2017. ### Who backed Aptinyx first? Aptinyx's first round on record, in Dec 2017, was backed by Adams Street Partners, Frazier Healthcare Partners and Longitude Capital and 13 others. ### What stage is Aptinyx at? Aptinyx's latest named round is a Grant, in Nov 2022. ### Where is Aptinyx based? Aptinyx is based in the United States. ## Companies like Aptinyx 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