UnannouncedVCInvestor

RA Capital Nexus

Startup rounds since 2012 with a RA Capital Nexus investor on the board, and the firm's own fund filings.

Raises
34
since 2012
Unannounced
3
no announcement found, of those filed since 2025
Funds
8
fund filings under the firm's name

Rounds

  1. Terrestrial Bio, Inc.$57.3MAnnounced 7 days later19 Mar 2026 · Woburn, MA
  2. Nature's Toolbox, Inc.$10.4MUnannounced · 225 days4 Feb 2026 · Rio Rancho, NM
  3. Vaxess Technologies, Inc.$7.9MUnannounced · 372 days10 Sep 2025 · Woburn, MA
  4. Nature's Toolbox, Inc.$4.2MUnannounced · 483 days22 May 2025 · Rio Rancho, NM
  5. Vaxess Technologies, Inc.$8.4MAnnounced 42 days later26 Feb 2025 · Cambridge, MA
  6. Abcuro, Inc.$80MAnnounced19 Feb 2025 · Newton, MA
  7. Nature's Toolbox, Inc.$44.4MFiled before 202522 Nov 2023 · Rio Rancho, NM
  8. Abcuro, Inc.$120MFiled before 202525 Aug 2023 · Newton, MA
  9. Freenome Holdings, Inc.$243MFiled before 20257 Dec 2021 · South San Francisco, CA
  10. ARS Pharmaceuticals, Inc.$55MFiled before 20257 Sep 2021 · San Diego, CA
  11. Icosavax, Inc.$99.7MFiled before 20257 Apr 2021 · Seattle, WA
  12. Black Diamond Therapeutics, Inc.$85MFiled before 20256 Dec 2019 · Cambridge, MA
  13. Lantos Technologies, Inc.$5.2MFiled before 202531 Oct 2019 · Wilmington, MA
  14. Black Diamond Therapeutics, Inc.$44.2MFiled before 202516 Jul 2019 · Cambridge, MA
  15. Lantos Technologies, Inc.$12.6MFiled before 202518 Mar 2019 · Wilmington, MA
  16. Sojournix, Inc.$44MFiled before 202513 Nov 2018 · Arlington, MA
  17. Eidos Therapeutics, Inc.$26MFiled before 202512 Apr 2018 · San Francisco, CA
  18. Satsuma Pharmaceuticals, Inc.$12.1MFiled before 202512 Feb 2018 · South San Francisco, CA
  19. Sojournix, Inc.$19MFiled before 202521 Dec 2017 · Arlington, MA
  20. Adeo Health Science, Inc.$3.08MFiled before 202522 Sep 2017 · Boston, MA
  21. Lantos Technologies, Inc.$2MFiled before 202528 Aug 2017 · Woburn, MA
  22. Sojournix, Inc.$8.36MFiled before 202518 May 2017 · Arlington, MA
  23. Lantos Technologies, Inc.$500KFiled before 202522 Nov 2016 · Wakefield, MA
  24. Lantos Technologies, Inc.$3.5MFiled before 202521 Oct 2016 · Wakefield, MA
  25. G1 Therapeutics, Inc.$50MFiled before 20251 Jul 2016 · Research Triangle Park, NC
  26. Kala Pharmaceuticals, Inc.$67.9MFiled before 202513 Apr 2016 · Waltham, MA
  27. Lantos Technologies, Inc.$1.5MFiled before 202510 Mar 2016 · Wakefield, MA
  28. Lantos Technologies, Inc.$3.92MFiled before 20255 Oct 2015 · Wakefield, MA
  29. Kala Pharmaceuticals, Inc.$7MFiled before 202519 Aug 2015 · Waltham, MA
  30. Ra Pharmaceuticals, Inc.$29.2MFiled before 202523 Jul 2015 · Cambridge, MA
  31. Lantos Technologies, Inc.$1.47MFiled before 20252 Jul 2015 · Wakefield, MA
  32. Calimmune, Inc.$15.9MFiled before 202528 May 2015 · Tucson, AZ
  33. Civitas Therapeutics, Inc.$55.2MFiled before 202529 Aug 2014 · Chelsea, MA
  34. Cellscape Corp$9.35MFiled before 20255 Mar 2012 · Mountain View, CA

By year

YearRaisesUnannounced
202621
202542
20232—
20213—
20194—
20183—
20174—
20165—
20155—
20141—
20121—

Raises are checked for an announcement from 2025 on.

Funds

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

FundFiledSizeRaised
RA Capital Nexus Fund IV, L.P.23 Apr 2025Open-ended—
RA Capital Nexus International Fund IV, L.P.23 Apr 2025Open-ended—
RA Capital Nexus Fund III, L.P.6 Oct 2021Open-ended$881M
RA Capital Nexus International Fund III, L.P.6 Oct 2021Open-ended$881M
RA Capital Nexus International Fund II, L.P.29 Sep 2020Open-ended—
RA Capital Nexus Fund II, L.P.29 Sep 2020Open-ended—
RA Capital Nexus International Fund, L.P.12 Jul 2019Open-ended$129M
RA Capital Nexus Fund, L.P.12 Jul 2019Open-ended$308M

Listed because a RA Capital Nexus fund's filing names a director of each company. A name match is not a verified identity.