UnannouncedVCInvestor

Mass General Brigham

Startup rounds since 2014 with a Mass General Brigham investor on the board, and the firm's own fund filings.

Raises
33
since 2014
Unannounced
3
no announcement found, of those filed since 2025
Funds
1
fund filings under the firm's name

Rounds

  1. Claris Biotherapeutics, Inc.$55.7MAnnounced12 Aug 2026 · Half Moon Bay, CA
  2. Claris Biotherapeutics, Inc.$2.3MUnannounced · 360 days22 Sep 2025 · Jersey City, NJ
  3. CodaMetrix Inc.$11.6MUnannounced · 503 days2 May 2025 · Boston, MA
  4. Claris Biotherapeutics, Inc.$3.3MUnannounced · 559 days7 Mar 2025 · Jersey City, NJ
  5. Mediar Therapeutics, Inc.$85MFiled before 202522 Oct 2024 · Boston, MA
  6. Claris Biotherapeutics, Inc.$10MFiled before 20258 Jan 2024 · Jersey City, NJ
  7. SeQure Dx Inc.$2.18MFiled before 202522 Dec 2023 · Waltham, MA
  8. SeQure Dx Inc.$2.61MFiled before 202522 Dec 2023 · Waltham, MA
  9. Claris Biotherapeutics, Inc.$44.5MFiled before 202524 Oct 2023 · Jersey City, NJ
  10. Abcuro, Inc.$120MFiled before 202525 Aug 2023 · Newton, MA
  11. Proximity Therapeutics, Inc.$11MFiled before 20254 Jan 2023 · Cambridge, MA
  12. Zielbio, Inc.$7.5MFiled before 202527 Sep 2022 · Charlottesville, VA
  13. Nocion Therapeutics, Inc.$7MFiled before 202524 Aug 2022 · Waltham, MA
  14. FireCyte Therapeutics, Inc.$5.5MFiled before 20251 Feb 2022 · Cambridge, MA
  15. SeQure Dx Inc.$17.5MFiled before 20256 Apr 2021 · Waltham, MA
  16. Pykus Therapeutics, Inc.$2.49MFiled before 20255 Feb 2021 · Cambridge, MA
  17. Nocion Therapeutics, Inc.$15MFiled before 202522 Jan 2021 · Waltham, MA
  18. Abcuro, Inc.$15.5MFiled before 202522 Jan 2021 · Newton, MA
  19. Albamunity, Inc.$5MFiled before 20255 Aug 2020 · Boston, MA
  20. Keros Therapeutics, Inc.$56MFiled before 202512 Mar 2020 · Lexington, MA
  21. Zielbio, Inc.$11MFiled before 202519 Sep 2019 · Charlottesville, VA
  22. Mediar Therapeutics, Inc.$5MFiled before 20256 Feb 2019 · Cambridge, MA
  23. Abcuro, Inc.$8MFiled before 202521 Nov 2018 · Newton, MA
  24. Keros Therapeutics, Inc.$11.5MFiled before 202521 Nov 2018 · Lexington, MA
  25. Keros Therapeutics, Inc.$11MFiled before 202513 Nov 2017 · Lexington, MA
  26. Tilos Therapeutics, Inc.$3.05MFiled before 202521 Sep 2017 · Cambridge, MA
  27. Abcuro, Inc.$2.25MFiled before 202513 Dec 2016 · Newton, MA
  28. Tilos Therapeutics, Inc.$750KFiled before 20251 Sep 2016 · Waltham, MA
  29. InfoBionic, Inc.$8.2MFiled before 202520 Jul 2016 · Lowell, MA
  30. Oscilla Power, Inc.$405KFiled before 20254 Sep 2015 · Seattle, WA
  31. InfoBionic, Inc.$17MFiled before 202521 Nov 2014 · Lowell, MA
  32. QPID, Inc.$12.3MFiled before 202516 May 2014 · Boston, MA
  33. Daktari Diagnostics, Inc.$20MFiled before 20257 Apr 2014 · Cambridge, MA

By year

YearRaisesUnannounced
202610
202533
20242—
20235—
20223—
20214—
20202—
20192—
20182—
20172—
20163—
20151—
20143—

Raises are checked for an announcement from 2025 on.

Funds

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

FundFiledSizeRaised
Mass General Brigham Fund III, L.P.1 Feb 2021$250M—

Listed because a Mass General Brigham fund's filing names a director of each company. A name match is not a verified identity.