Westlake BioPartners

Rounds

1. Arpeggio Biosciences, Inc.$20MUnannounced · 297 days24 Nov 2025 · Boulder, CO
2. Latigo Biotherapeutics, Inc.$50MAnnounced 32 days later13 Feb 2025 · Thousand Oaks, CA
3. Arsenal Biosciences, Inc.$325MFiled before 20254 Sep 2024 · South San Francisco, CA
4. Arsenal Biosciences, Inc.$221MFiled before 20259 Sep 2022 · South San Francisco, CA
5. Arsenal Biosciences, Inc.$33MFiled before 20259 Sep 2022 · South San Francisco, CA
6. Portal Instruments, Inc.$7MFiled before 202529 Apr 2022 · Cambridge, MA
7. Neurogastrx, Inc.$60MFiled before 202513 Jul 2021 · Woburn, MA
8. Neurogastrx, Inc.$20MFiled before 20256 Jul 2021 · Woburn, MA
9. Soteria Biotherapeutics, Inc.$24.9MFiled before 202517 May 2021 · San Francisco, CA
10. Impel Neuropharma IncUndisclosedFiled before 20251 Apr 2021 · Seattle, WA
11. Impel Neuropharma Inc$7.5MFiled before 202512 Mar 2021 · Seattle, WA
12. Vera Therapeutics, Inc.$70.7MFiled before 202525 Feb 2021 · South San Francisco, CA
13. Impel Neuropharma IncUndisclosedFiled before 202517 Feb 2021 · Seattle, WA
14. Sagimet Biosciences Inc.$69MFiled before 20255 Jan 2021 · San Mateo, CA
15. Albamunity, Inc.$5MFiled before 20255 Aug 2020 · Boston, MA
16. Impel Neuropharma IncUndisclosedFiled before 20256 May 2020 · Seattle, WA
17. Impel Neuropharma IncUndisclosedFiled before 202530 Jan 2020 · Seattle, WA
18. Tmunity Therapeutics, Inc.$75MFiled before 202530 Oct 2019 · Philadelphia, PA
19. Impel Neuropharma IncUndisclosedFiled before 20253 Jul 2019 · Seattle, WA
20. RAPT Therapeutics, Inc.$37.1MFiled before 202520 Jun 2019 · South San Francisco, CA
21. 3-V Biosciences, Inc.$35.2MFiled before 202525 Feb 2019 · Campbell, CA
22. Kinsa Inc.$7.93MFiled before 202526 Apr 2018 · San Francisco, CA
23. FLX Bio, Inc.$29.9MFiled before 20254 Jan 2018 · South San Francisco, CA
24. Breathe Technologies, Inc.$6.25MFiled before 20252 Nov 2017 · Irvine, CA
25. Breathe Technologies, Inc.$8.5MFiled before 202527 Sep 2017 · Irvine, CA
26. Ceterix Orthopaedics, Inc.$23MFiled before 202519 Dec 2016 · Fremont, CA
27. Hixme Insurance Solutions, Inc.$10MFiled before 20254 Oct 2016 · Agoura Hills, CA
28. 3-V Biosciences, Inc.$5.44MFiled before 20255 Jul 2016 · Menlo Park, CA
29. Progyny, Inc.$14.8MFiled before 202529 Jun 2016 · New York, NY
30. Cell Design Labs, Inc.$4MFiled before 202517 Jun 2016 · Lafayette, CA
31. Cell Design Labs, Inc.$22.9MFiled before 202517 Jun 2016 · Lafayette, CA
32. FLX Bio, Inc.$50MFiled before 20255 May 2016 · South San Francisco, CA
33. TESARO, Inc.$50MFiled before 202518 Apr 2016 · Waltham, MA
34. TESARO, Inc.$155MFiled before 202510 Mar 2016 · Waltham, MA
35. Livongo Health, Inc.$20MFiled before 20259 Apr 2015 · Chicago, IL
36. Flexus Biosciences, Inc.$15.2MFiled before 202520 Mar 2015 · San Carlos, CA
37. 3-V Biosciences, Inc.$14.3MFiled before 202517 Mar 2015 · Menlo Park, CA
38. Practice Fusion Inc$2.5MFiled before 202521 Oct 2014 · San Francisco, CA
39. Breathe Technologies Inc$7.24MFiled before 202520 Jun 2014 · Irvine, CA
40. Redbrick Health Corp$7.5MFiled before 202528 Apr 2014 · Minneapolis, MN
41. Santa Maria Biotherapeutics, Inc.$6.31MFiled before 202513 Jan 2014 · Brisbane, CA
42. Pinta Biotherapeutics, Inc.$6.31MFiled before 202513 Jan 2014 · Brisbane, CA
43. Nina Biotherapeutics, Inc.$878KFiled before 202513 Jan 2014 · Brisbane, CA

By year

Raises are checked for an announcement from 2025 on.

Funds

The firm's own fund filings, each at its latest filing.