In the week of October 26, 2026, 9 biotech companies filed a new SEC Form D, reporting $81.36M sold in all. The biggest raise was BigHat Biosciences, Inc., at $75.14M (San Mateo, CA). 6 of them filed a Form D for the first time. That is down from 13 the week before, against a 12-week average of 13.5 (SEC Form D, October 26, 2026).
9 biotech companies filed this week, down from 13 the week before, against a 12-week average of 13.5. The biggest raise was BigHat Biosciences, Inc. at $75.14M, based in San Mateo, CA.
Companies raising per week
Every raise this week
| Based | People named | |||
|---|---|---|---|---|
| BigHat Biosciences, Inc. | $75.14M | 2026-10-26 | San Mateo, CA | Peyton Greenside, Vineeta Agarwala +3 |
| Swep Bio, Inc. first filing | $2.50M | 2026-10-29 | Scarsdale, NY | Goran Dolsten, Karl Berglund +1 |
| Accufy Diagnostics, Inc. | $2M | 2026-10-28 | Rockville, MD | Jeffrey Hung, Zhixiong Xu |
| Tru Singular Health, Inc. first filing | $1M | 2026-10-30 | Natick, MA | Steven Gullans |
| 511 Therapeutics, Inc. | $500K | 2026-10-30 | Cambridge, MA | Shuguang Zhang, Yancen Lu +2 |
| Palimpsest Bio Corp. first filing | $172K | 2026-10-30 | Las Vegas, NV | Matthew Korpela |
| Synomis, Inc. first filing | $30K | 2026-10-30 | Germantown, TN | William Luttrell, Kevin Cordell |
| TCM Life Science Inc. first filing | $17K | 2026-10-26 | Newark, DE | Ya-Chun Wang, Huan-Chin Hsu |
| AdhereBio LLC first filing | — | 2026-10-26 | Fort Lauderdale, FL | Shawn Barrieau |
First-time filers
TCM Life Science Inc., Swep Bio, Inc., Synomis, Inc., AdhereBio LLC, Palimpsest Bio Corp., Tru Singular Health, Inc. filed their first Form D on record this week.
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How this list is built
Every company here filed a Form D with the SEC in the week 2026-10-26 to 2026-11-01. 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/2026-44/biotech