In the week of October 19, 2026, 14 companies in Boston filed a new SEC Form D, reporting $144.63M sold in all. The biggest raise was Boltz, PBC, at $97.36M (Boston, MA). 9 of them filed a Form D for the first time. That is up from 2 the week before, against a 12-week average of 4.3 (SEC Form D, October 22, 2026).
14 companies in Boston filed this week, up from 2 the week before, against a 12-week average of 4.3. The biggest raise was Boltz, PBC at $97.36M, based in Boston, MA.
Companies raising per week
Every raise this week
| Based | People named | |||
|---|---|---|---|---|
| Boltz, PBC first filing | $97.36M | 2026-10-22 | Boston, MA | Gabriele Corso, Saro Passaro +4 |
| XRHealth, Inc. | $16.25M | 2026-10-23 | Needham, MA | Eran Orr |
| Crosslink Therapeutics Inc. | $5.50M | 2026-10-20 | Boston, MA | Ronald Seidel, III, Andrew King +4 |
| SpartanX Technologies, Inc. first filing | $5M | 2026-10-22 | Boston, MA | Erik Hardy, Anton Simunovic +1 |
| Fresenius Medical Care Fulshear, LLC first filing | $4.38M | 2026-10-21 | Waltham, MA | Erik Lyesiuk, Aaron Almquist +3 |
| XRHealth, Inc. | $3.88M | 2026-10-23 | Needham, MA | Eran Orr |
| Quiver Holdings Inc. first filing | $3M | 2026-10-21 | Cambridge, MA | Graham Dempsey, David Liederbach +5 |
| Luminous Robotics, Inc. | $2.40M | 2026-10-21 | Boston, MA | Jay Wong, Robert Boyd Jr. +1 |
| Kappa Pay Inc. | $2M | 2026-10-21 | Boston, MA | Blaise Buma, Andreas Fragner +1 |
| Nocturnal Inc. | $1.85M | 2026-10-20 | Cambridge, MA | Abhinandan Jain, Rajeev Surati |
| Mikri Inc. first filing | $1.35M | 2026-10-19 | Boston, MA | Shuki Harris, Ziyun Yang +2 |
| OrthoIQ, Inc. first filing | $1.08M | 2026-10-23 | Cambridge, MA | Audrey Chen, Alan Davidner +1 |
| Rosella Boston LLC first filing | $500K | 2026-10-21 | Boston, MA | Stephen Bowler |
| TWINTUAL INC. first filing | $75K | 2026-10-22 | Cambridge, MA | Cristina Grau-Vilchez, Mathieu Bertrandy |
| LeanBio Therapeutics, Inc. first filing | — | 2026-10-22 | Brookline, MA | Michal Preminger, William Hait |
First-time filers
OrthoIQ, Inc., LeanBio Therapeutics, Inc., TWINTUAL INC., Boltz, PBC, Fresenius Medical Care Fulshear, LLC, Quiver Holdings Inc., Mikri Inc., Rosella Boston LLC, SpartanX Technologies, Inc. filed their first Form D on record this week.
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By sector and metro
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How this list is built
Every company here filed a Form D with the SEC in the week 2026-10-19 to 2026-10-25. 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/2026-43/boston