RaiseTrack

ArkeaBio Series A-2 (2026)

ArkeaBio raised $15 million in a Series A-2 round, reported on 2026-09-29. The round was led by AgriZeroNZ.

Company
ArkeaBio
Round type
Series A-2
Date
2026-09-29
Amount
$15M
Industry
agtech, animal health
Location
Boston, MA

Summary

ArkeaBio raised a $15 million Series A2 round led by AgriZeroNZ, with support from Breakthrough Energy Ventures. Agribusiness Wire reported it on 2026-09-29 (UTC) and AgFunderNews, which credits its own exclusive interview, on 2026-09-30. An SEC Form D signed on 2026-10-09 reports $14,999,995 of equity sold to 2 investors since 2026-09-28, which matches the round. AgFunderNews writes Breakthrough Energy; Agribusiness Wire writes Breakthrough Energy Ventures, which is used here.

Investors

Lead

  • AgriZeroNZ lead

Participating

  • Breakthrough Energy Ventures participant

Sources

Last verified:

  1. https://agfundernews.com/exclusive-arkeabio-raises-15m-for-livestock-methane-tech-cuts-headcount
    Type: reputable publication. Accessed 2026-10-12.
    AgFunderNews article dated 2026-09-30 (08:00 UTC). Reports that ArkeaBio, a Boston-based startup developing a vaccine to cut livestock methane, raised a $15 million Series A2 round led by AgriZeroNZ and supported by Breakthrough Energy, and cut its headcount by about a third. Names CEO Frank Wooten.
  2. https://agribusinesswire.com/articles/arkeabio-raises-15m-for-methane-vaccine-cuts-a-third-of-staff-13253390
    Type: reputable publication. Accessed 2026-10-12.
    Agribusiness Wire article dated 2026-09-29 (20:50 UTC). Reports the $15 million Series A2 led by AgriZeroNZ with support from Breakthrough Energy Ventures.
  3. https://agronewstoday.com/article/arkeabio-raises-15m-livestock-methane-vaccine
    Type: reputable publication. Accessed 2026-10-12.
    Agro News Today article dated 2026-09-30, crediting AgFunderNews. Reports the $15 million Series A2 led by AgriZeroNZ with support from Breakthrough Energy.
  4. https://www.sec.gov/Archives/edgar/data/2004801/000200480126000001/0002004801-26-000001-index.htm
    Type: sec filing. Accessed 2026-10-12.
    SEC Form D for Arkea Bio Corp., Charlestown, MA, signed 2026-10-09. Reports $14,999,995 of equity sold out of $32,999,992 offered to 2 investors, first sale 2026-09-28. It does not name investors or a round type.