6 companies in Boston filed this week, up from 3 the week before, against a 12-week average of 4.8. The biggest raise was Ratio Therapeutics, Inc. at $70M, based in boston, MA.
Companies raising per week
Every raise this week
| Based | People named | |||
|---|---|---|---|---|
| Ratio Therapeutics, Inc. | $70M | 2026-07-31 | boston, MA | John Hoppin, John Babich +7 |
| NextPoint Therapeutics, Inc. | $33.73M | 2026-07-30 | cambridge, MA | Detlev Biniszkiewicz, Ivan Cheung +6 |
| Magnendo Corp. | $18M | 2026-07-29 | newton, MA | Yoonho Kim, Aman Patel +2 |
| Nanoramic, Inc. | $9.01M | 2026-07-30 | woburn, MA | John Cooley, Matthew Fenselau +4 |
| KaiAvora Health, LLC first filing | $300K | 2026-07-31 | medford, MA | Jill Sirko, Megan Gordon |
| WaveGuide Corp | $200K | 2026-07-30 | waltham, MA | Nelson Stacks, Harold Handelsmen +4 |
First-time filers
KaiAvora Health, LLC filed their first Form D on record this week.
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By sector and metro
Health care in Boston Energy and climate in Boston Biotech in Boston Manufacturing in Boston Pharmaceuticals in Boston
Nearby weeks
Week of 2026-07-20 Week of 2026-08-03
How this list is built
Every company here filed a Form D with the SEC in the week 2026-07-27 to 2026-08-02. A Form D is the notice a company files when it sells shares or other securities without a public offering, so it catches seed rounds, small rounds and rounds that were never announced, alongside the large ones that make the news. Only new offerings by operating companies count: amendments, pooled investment funds, real estate vehicles and special purpose vehicles are left out, so each row is a company raising money for itself.
The amount shown is the total the filing reports as sold so far. Some filings report nothing sold yet; those rows show a dash and add nothing to the totals. "First filing" marks a company whose first Form D on record this is. Each company links to our page for the filing, or to the SEC's own copy, and the list can be copied as CSV for a spreadsheet.
Cite this page
https://mentionfox.com/funding/week/2026-31/boston